add create xcframework bundles option to ios.sh, fixes #351

* [Android Demo] Updating the Android Gradle Plugin to 3.5.2

* [Android Demo] Updating Gradle distribution to 6.0

* [Android Demo] Removing redundant dependencies in the library module

* [Android Demo] Removing worthless instrumentation test file from library module

* [Android Demo] Updating testing dependency in library module

* [Android Demo] Removing redundant resources from the library module

* Improving the android.sh, so it builds only necessary parts of the only library module

* Improving the android.sh. Cleaning only android library module when calling gradlew.

* [Android Demo] Updating Gradle dist to 6.0.1

.github/FUNDING.yml

@@ -0,0 +1,3 @@
+open_collective: mobile-ffmpeg
+patreon: tanersener
+custom: ['https://buymeacoff.ee/tanersener','https://paypal.me/teodosiyminchev']

.github/ISSUE_TEMPLATE/issue-template.md

@@ -17,7 +17,7 @@ What happened.
 If applicable, add screenshots to help explain your problem.
 
 **Logs**
-Post logs here or paste them to [Ghostbin](https://ghostbin.com) and insert the link here.
+Post logs here or paste them to [Ghostbin](https://ghostbin.co) and insert the link here.
 
 **Environment**
  - Platform: [e.g. Android/IOS]

.travis.yml

@@ -0,0 +1,175 @@
+branches:
+  only:
+  - master
+  - development
+git:
+  quiet: true
+jobs:
+  include:
+    - name: "Android Main Build"
+      language: android
+      os: linux
+      dist : trusty
+      addons:
+        apt:
+          packages:
+            - autoconf
+            - automake
+            - libtool
+            - pkg-config
+            - curl
+            - git
+            - cmake
+            - gcc
+            - gperf
+            - texinfo
+            - yasm
+            - nasm
+            - bison
+            - autogen
+            - patch
+      android:
+        components:
+          - tools
+          - platform-tools
+          - build-tools-28.0.3
+          - android-24
+          - extra-google-google_play_services
+          - extra-google-m2repository
+          - extra-android-m2repository
+      install:
+        - echo y | sdkmanager "ndk-bundle"
+        - echo y | sdkmanager "cmake;3.10.2.4988404"
+        - echo y | sdkmanager "lldb;3.1"
+      before_install:
+        - touch $HOME/.android/repositories.cfg
+      before_script:
+        - export ANDROID_NDK_ROOT=$ANDROID_HOME/ndk-bundle
+        - rm -f ./build.log
+      after_success:
+        - grep -e INFO ./build.log | grep build
+      after_failure:
+        - tail -30 ./build.log
+        - tail -30 ./src/ffmpeg/ffbuild/config.log
+      script:
+        - bash ./android.sh --no-output-redirection
+    - name: "Android LTS Build"
+      language: android
+      os: linux
+      dist : trusty
+      addons:
+        apt:
+          packages:
+            - autoconf
+            - automake
+            - libtool
+            - pkg-config
+            - curl
+            - git
+            - cmake
+            - gcc
+            - gperf
+            - texinfo
+            - yasm
+            - nasm
+            - bison
+            - autogen
+            - patch
+      android:
+        components:
+          - tools
+          - platform-tools
+          - build-tools-28.0.3
+          - android-16
+          - android-21
+          - extra-google-google_play_services
+          - extra-google-m2repository
+          - extra-android-m2repository
+      install:
+        - echo y | sdkmanager "ndk-bundle"
+        - echo y | sdkmanager "cmake;3.10.2.4988404"
+        - echo y | sdkmanager "lldb;3.1"
+      before_install:
+        - touch $HOME/.android/repositories.cfg
+      before_script:
+        - export ANDROID_NDK_ROOT=$ANDROID_HOME/ndk-bundle
+        - rm -f ./build.log
+      after_success:
+        - grep -e INFO ./build.log | grep build
+      after_failure:
+        - tail -30 ./build.log
+        - tail -30 ./src/ffmpeg/ffbuild/config.log
+      script:
+        - bash ./android.sh --lts --no-output-redirection
+    - name: "iOS Main Build"
+      language: objective-c
+      os: osx
+      osx_image: xcode10.2
+      addons:
+        homebrew:
+          packages:
+            - nasm
+          update: true
+      before_script:
+        - rm -f ./build.log
+      after_success:
+        - grep -e INFO ./build.log | grep build
+      after_failure:
+        - tail -30 ./build.log
+        - tail -30 ./src/ffmpeg/ffbuild/config.log
+      script:
+        - bash ./ios.sh --no-output-redirection
+    - name: "iOS LTS Build"
+      language: objective-c
+      osx_image: xcode7.3
+      os: osx
+      addons:
+        homebrew:
+          packages:
+            - nasm
+          update: true
+      before_script:
+        - rm -f ./build.log
+      after_success:
+        - grep -e INFO ./build.log | grep build
+      after_failure:
+        - tail -30 ./build.log
+        - tail -30 ./src/ffmpeg/ffbuild/config.log
+      script:
+        - bash ./ios.sh --lts --no-output-redirection
+    - name: "tvOS Main Build"
+      language: objective-c
+      os: osx
+      osx_image: xcode10.2
+      addons:
+        homebrew:
+          packages:
+            - nasm
+          update: true
+      before_script:
+        - rm -f ./build.log
+      after_success:
+        - grep -e INFO ./build.log | grep build
+      after_failure:
+        - tail -30 ./build.log
+        - tail -30 ./src/ffmpeg/ffbuild/config.log
+      script:
+        - bash ./tvos.sh --no-output-redirection
+    - name: "tvOS LTS Build"
+      language: objective-c
+      os: osx
+      osx_image: xcode7.3
+      addons:
+        homebrew:
+          packages:
+            - nasm
+          update: true
+      before_script:
+        - rm -f ./build.log
+      after_success:
+        - grep -e INFO ./build.log | grep build
+      after_failure:
+        - tail -30 ./build.log
+        - tail -30 ./src/ffmpeg/ffbuild/config.log
+      script:
+        - bash ./tvos.sh --lts --no-output-redirection

README.md

@@ -1,26 +1,29 @@
-# MobileFFmpeg [![Join the chat at https://gitter.im/mobile-ffmpeg/Lobby](https://badges.gitter.im/mobile-ffmpeg/Lobby.svg)](https://gitter.im/mobile-ffmpeg/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) ![GitHub release](https://img.shields.io/badge/release-v4.2-blue.svg) ![Bintray](https://img.shields.io/badge/bintray-v4.2-blue.svg) ![CocoaPods](https://img.shields.io/badge/pod-v4.2-blue.svg)
+# MobileFFmpeg [![Financial Contributors on Open Collective](https://opencollective.com/mobile-ffmpeg/all/badge.svg?label=financial+contributors)](https://opencollective.com/mobile-ffmpeg) ![GitHub release](https://img.shields.io/badge/release-v4.3.1-blue.svg) ![Bintray](https://img.shields.io/badge/bintray-v4.3.1-blue.svg) ![CocoaPods](https://img.shields.io/badge/pod-v4.3.1-blue.svg) [![Build Status](https://travis-ci.org/tanersener/mobile-ffmpeg.svg?branch=master)](https://travis-ci.org/tanersener/mobile-ffmpeg)
 
-FFmpeg for Android and IOS
+FFmpeg for Android, iOS and tvOS
 
-<img src="https://github.com/tanersener/mobile-ffmpeg/blob/dev-v3.x/docs/assets/mobile-ffmpeg-logo-v7.png" width="320">
+<img src="https://github.com/tanersener/mobile-ffmpeg/blob/master/docs/assets/mobile-ffmpeg-logo-v7.png" width="320">
 
 ### 1. Features
+- Includes both `FFmpeg` and `FFprobe`
 - Use binaries available at `Github`/`JCenter`/`CocoaPods` or build your own version with external libraries you need
 - Supports
-    - Both Android and IOS
-    - FFmpeg `v3.4.x`, `v4.0.x`, `v4.1` and `v4.2-dev` releases
-    - 27 external libraries
+    - Android, iOS and tvOS
+    - FFmpeg `v3.4.x`, `v4.0.x`, `v4.1`, `v4.2` and `v4.3-dev` releases
+    - 28 external libraries
     
-        `chromaprint`, `fontconfig`, `freetype`, `fribidi`, `gmp`, `gnutls`, `kvazaar`, `lame`, `libaom`, `libass`, `libiconv`, `libilbc`, `libtheora`, `libvorbis`, `libvpx`, `libwebp`, `libxml2`, `opencore-amr`, `opus`, `sdl`, `shine`, `snappy`, `soxr`, `speex`, `tesseract`, `twolame`, `wavpack`
+        `chromaprint`, `fontconfig`, `freetype`, `fribidi`, `gmp`, `gnutls`, `kvazaar`, `lame`, `libaom`, `libass`, `libiconv`, `libilbc`, `libtheora`, `libvorbis`, `libvpx`, `libwebp`, `libxml2`, `opencore-amr`, `openh264`, `opus`, `sdl`, `shine`, `snappy`, `soxr`, `speex`, `tesseract`, `twolame`, `wavpack`
     
     - 4 external libraries with GPL license
     
         `vid.stab`, `x264`, `x265`, `xvidcore`
 
+    - Concurrent execution
+
 - Exposes both FFmpeg library and MobileFFmpeg wrapper library capabilities
-- Includes cross-compile instructions for 43 open-source libraries
+- Includes cross-compile instructions for 44 open-source libraries
     
-    `chromaprint`, `expat`, `ffmpeg`, `fontconfig`, `freetype`, `fribidi`, `giflib`, `gmp`, `gnutls`, `kvazaar`, `lame`, `leptonica`, `libaom`, `libass`, `libiconv`, `libilbc`, `libjpeg`, `libjpeg-turbo`, `libogg`, `libpng`, `libsndfile`, `libtheora`, `libuuid`, `libvorbis`, `libvpx`, `libwebp`, `libxml2`, `nettle`, `opencore-amr`, `opus`, `sdl`, `shine`, `snappy`, `soxr`, `speex`, `tesseract`, `tiff`, `twolame`, `vid.stab`, `wavpack`, `x264`, `x265`, `xvidcore`
+    `chromaprint`, `expat`, `ffmpeg`, `fontconfig`, `freetype`, `fribidi`, `giflib`, `gmp`, `gnutls`, `kvazaar`, `lame`, `leptonica`, `libaom`, `libass`, `libiconv`, `libilbc`, `libjpeg`, `libjpeg-turbo`, `libogg`, `libpng`, `libsndfile`, `libtheora`, `libuuid`, `libvorbis`, `libvpx`, `libwebp`, `libxml2`, `nettle`, `opencore-amr`, `openh264`, `opus`, `sdl`, `shine`, `snappy`, `soxr`, `speex`, `tesseract`, `tiff`, `twolame`, `vid.stab`, `wavpack`, `x264`, `x265`, `xvidcore`
 
 - Licensed under LGPL 3.0, can be customized to support GPL v3.0
 
@@ -30,23 +33,33 @@ FFmpeg for Android and IOS
 - Camera access on [supported devices](https://developer.android.com/ndk/guides/stable_apis#camera)
 - Builds shared native libraries (.so)
 - Creates Android archive with .aar extension
+- Supports `API Level 16+`
 
-#### 1.2 IOS
-- Builds `armv7`, `armv7s`, `arm64`, `arm64e`, `i386` and `x86_64` architectures
-- Supports `bzip2`, `zlib` system libraries and `AudioToolbox`, `CoreImage`, `VideoToolbox`, `AVFoundation` system frameworks
+#### 1.2 iOS
+- Builds `armv7`, `armv7s`, `arm64`, `arm64e`, `i386`, `x86_64` and `x86_64` (Mac Catalyst) architectures
+- Supports `bzip2`, `iconv`, `libuuid`, `zlib` system libraries and `AudioToolbox`, `CoreImage`, `VideoToolbox`, `AVFoundation` system frameworks
 - Objective-C API
 - Camera access
 - `ARC` enabled library
 - Built with `-fembed-bitcode` flag
-- Creates static framework and static universal (fat) library (.a) 
-- Supports Xcode 7.3.1 or later
+- Creates static framework and static universal (fat) library (.a)
+- Supports `iOS SDK 9.3` or later
+ 
+#### 1.3 tvOS
+- Builds `arm64` and `x86_64` architectures
+- Supports `bzip2`, `zlib`, `iconv` system libraries and `AudioToolbox`, `CoreImage`, `VideoToolbox` system frameworks
+- Objective-C API
+- `ARC` enabled library
+- Built with `-fembed-bitcode` flag
+- Creates static framework and static universal (fat) library (.a)
+- Supports `tvOS SDK 9.2` or later
 
 ### 2. Using
-Binaries are available at [Github](https://github.com/tanersener/mobile-ffmpeg/releases), [JCenter](https://bintray.com/bintray/jcenter) and [CocoaPods](https://cocoapods.org). 
+Published binaries are available at [Github](https://github.com/tanersener/mobile-ffmpeg/releases), [JCenter](https://bintray.com/bintray/jcenter) and [CocoaPods](https://cocoapods.org).
 
-Refer to [Using IOS Universal Binaries](https://github.com/tanersener/mobile-ffmpeg/wiki/Using-IOS-Universal-Binaries) guide to import IOS universal binaries released at [Github](https://github.com/tanersener/mobile-ffmpeg/releases).
+There are eight different `mobile-ffmpeg` packages. Below you can see which system libraries and external libraries are enabled in each of them. 
 
-There are eight different binary packages. Below you can see which system libraries and external libraries are enabled in each of them.
+Please remember that some parts of `FFmpeg` are licensed under the `GPL` and only `GPL` licensed `mobile-ffmpeg` packages include them.
 
 <table>
 <thead>
@@ -80,7 +93,11 @@ There are eight different binary packages. Below you can see which system librar
 </tr>
 <tr>
 <td align="center"><sup>ios system libraries</sup></td>
-<td align="center" colspan=8><sup>zlib</sup><br><sup>AudioToolbox</sup><br><sup>AVFoundation</sup><br><sup>CoreImage</sup><br><sup>VideoToolbox</sup><br><sup>bzip2</sup></td>
+<td align="center" colspan=8><sup>zlib</sup><br><sup>AudioToolbox</sup><br><sup>AVFoundation</sup><br><sup>CoreImage</sup><br><sup>iconv</sup><br><sup>VideoToolbox</sup><br><sup>bzip2</sup></td>
+</tr>
+<tr>
+<td align="center"><sup>tvos system libraries</sup></td>
+<td align="center" colspan=8><sup>zlib</sup><br><sup>AudioToolbox</sup><br><sup>CoreImage</sup><br><sup>iconv</sup><br><sup>VideoToolbox</sup><br><sup>bzip2</sup></td>
 </tr>
 </tbody>
 </table>
@@ -91,59 +108,89 @@ There are eight different binary packages. Below you can see which system librar
 
  - `chromaprint`, `vid.stab` and `x265` are supported since `v2.1`
 
- - `sdl`, `tesseract`, `twolame` external libraries; `zlib`, `MediaCodec` Android system libraries; `bzip2`, `zlib` IOS system libraries and `AudioToolbox`, `CoreImage`, `VideoToolbox`, `AVFoundation` IOS system frameworks are supported since `v3.0`
+ - `sdl`, `tesseract`, `twolame` external libraries; `zlib`, `MediaCodec` Android system libraries; `bzip2`, `zlib` iOS system libraries and `AudioToolbox`, `CoreImage`, `VideoToolbox`, `AVFoundation` iOS system frameworks are supported since `v3.0`
+
  - Since `v4.2`, `chromaprint`, `sdl` and `tesseract` libraries are not included in binary releases. You can still build them and include in your releases
+ 
+ - `AVFoundation` is not available on `tvOS`, `VideoToolbox` is not available on `tvOS` LTS releases
+ 
+ - Since `v4.3.1`, `iOS` and `tvOS` releases started to use `iconv` system library instead of `iconv` external library 
 
 #### 2.1 Android
-1. Add MobileFFmpeg dependency from `jcenter()`
+1. Add MobileFFmpeg dependency to your `build.gradle` in `mobile-ffmpeg-<package name>` format
     ```
     dependencies {
-        implementation 'com.arthenica:mobile-ffmpeg-full:4.2'
+        implementation 'com.arthenica:mobile-ffmpeg-full:4.3.1'
     }
     ```
 
-2. Execute commands.
+2. Execute FFmpeg commands.
     ```
+    import com.arthenica.mobileffmpeg.Config;
     import com.arthenica.mobileffmpeg.FFmpeg;
 
-    FFmpeg.execute("-i file1.mp4 -c:v mpeg4 file2.mp4");
+    int rc = FFmpeg.execute("-i file1.mp4 -c:v mpeg4 file2.mp4");
+   
+    if (rc == RETURN_CODE_SUCCESS) {
+        Log.i(Config.TAG, "Command execution completed successfully.");
+    } else if (rc == RETURN_CODE_CANCEL) {
+        Log.i(Config.TAG, "Command execution cancelled by user.");
+    } else {
+        Log.i(Config.TAG, String.format("Command execution failed with rc=%d and the output below.", rc));
+        Config.printLastCommandOutput(Log.INFO);
+    }
     ```
 
-3. Check execution output.
+3. Execute FFprobe commands.
     ```
-    int rc = FFmpeg.getLastReturnCode();
-    String output = FFmpeg.getLastCommandOutput();
+    import com.arthenica.mobileffmpeg.Config;
+    import com.arthenica.mobileffmpeg.FFprobe;
+
+    int rc = FFprobe.execute("-i file1.mp4");
+   
+    if (rc == RETURN_CODE_SUCCESS) {
+        Log.i(Config.TAG, "Command execution completed successfully.");
+    } else {
+        Log.i(Config.TAG, String.format("Command execution failed with rc=%d and the output below.", rc));
+        Config.printLastCommandOutput(Log.INFO);
+    }
+    ```
+
+4. Check execution output later.
+    ```
+    int rc = Config.getLastReturnCode();
  
     if (rc == RETURN_CODE_SUCCESS) {
         Log.i(Config.TAG, "Command execution completed successfully.");
     } else if (rc == RETURN_CODE_CANCEL) {
         Log.i(Config.TAG, "Command execution cancelled by user.");
     } else {
-        Log.i(Config.TAG, String.format("Command execution failed with rc=%d and output=%s.", rc, output));
+        Log.i(Config.TAG, String.format("Command execution failed with rc=%d and the output below.", rc));
+        Config.printLastCommandOutput(Log.INFO);
     }
     ```
 
-4. Stop an ongoing operation.
+5. Stop an ongoing FFmpeg operation.
     ```
     FFmpeg.cancel();
     ```
 
-5. Get media information for a file.
+6. Get media information for a file.
     ```
-    MediaInformation info = FFmpeg.getMediaInformation("<file path or uri>");
+    MediaInformation info = FFprobe.getMediaInformation("<file path or uri>");
     ```
 
-6. Record video and audio using Android camera.
+7. Record video using Android camera.
     ```
     FFmpeg.execute("-f android_camera -i 0:0 -r 30 -pixel_format bgr0 -t 00:00:05 <record file path>");
     ```
 
-7. List enabled external libraries.
+8. List enabled external libraries.
     ```
     List<String> externalLibraries = Config.getExternalLibraries();
     ```
 
-8. Enable log callback.
+9. Enable log callback.
     ```
     Config.enableLogCallback(new LogCallback() {
         public void apply(LogMessage message) {
@@ -152,7 +199,7 @@ There are eight different binary packages. Below you can see which system librar
     });
     ```
 
-9. Enable statistics callback.
+10. Enable statistics callback.
     ```
     Config.enableStatisticsCallback(new StatisticsCallback() {
         public void apply(Statistics newStatistics) {
@@ -161,33 +208,65 @@ There are eight different binary packages. Below you can see which system librar
     });
     ```
 
-10. Set log level.
+11. Set log level.
     ```
     Config.setLogLevel(Level.AV_LOG_FATAL);
     ```
 
-11. Register custom fonts directory.
+12. Register custom fonts directory.
     ```
     Config.setFontDirectory(this, "<folder with fonts>", Collections.EMPTY_MAP);
     ```
 
-#### 2.2 IOS
-1. Add MobileFFmpeg pod to your `Podfile`
+#### 2.2 iOS / tvOS
+1. Add MobileFFmpeg dependency to your `Podfile` in `mobile-ffmpeg-<package name>` format
+
+    - iOS
     ```
-    pod 'mobile-ffmpeg-full', '~> 4.2'
+    pod 'mobile-ffmpeg-full', '~> 4.3.1'
     ```
 
-2. Execute commands.
+    - tvOS
     ```
+    pod 'mobile-ffmpeg-tvos-full', '~> 4.3.1'
+    ```
+
+2. Execute FFmpeg commands.
+    ```
+    #import <mobileffmpeg/MobileFFmpegConfig.h>
     #import <mobileffmpeg/MobileFFmpeg.h>
 
-    [MobileFFmpeg execute: @"-i file1.mp4 -c:v mpeg4 file2.mp4"];
+    int rc = [MobileFFmpeg execute: @"-i file1.mp4 -c:v mpeg4 file2.mp4"];
+   
+    if (rc == RETURN_CODE_SUCCESS) {
+        NSLog(@"Command execution completed successfully.\n");
+    } else if (rc == RETURN_CODE_CANCEL) {
+        NSLog(@"Command execution cancelled by user.\n");
+    } else {
+        NSLog(@"Command execution failed with rc=%d and output=%@.\n", rc, [MobileFFmpegConfig getLastCommandOutput]);
+    }
     ```
     
-3. Check execution output.
+3. Execute FFprobe commands.
     ```
-    int rc = [MobileFFmpeg getLastReturnCode];
-    NSString *output = [MobileFFmpeg getLastCommandOutput];
+    #import <mobileffmpeg/MobileFFmpegConfig.h>
+    #import <mobileffmpeg/MobileFFprobe.h>
+
+    int rc = [MobileFFprobe execute: @"-i file1.mp4"];
+   
+    if (rc == RETURN_CODE_SUCCESS) {
+        NSLog(@"Command execution completed successfully.\n");
+    } else if (rc == RETURN_CODE_CANCEL) {
+        NSLog(@"Command execution cancelled by user.\n");
+    } else {
+        NSLog(@"Command execution failed with rc=%d and output=%@.\n", rc, [MobileFFmpegConfig getLastCommandOutput]);
+    }
+    ```
+    
+4. Check execution output later.
+    ```
+    int rc = [MobileFFmpegConfig getLastReturnCode];
+    NSString *output = [MobileFFmpegConfig getLastCommandOutput];
 
     if (rc == RETURN_CODE_SUCCESS) {
         NSLog(@"Command execution completed successfully.\n");
@@ -198,28 +277,28 @@ There are eight different binary packages. Below you can see which system librar
     }
     ```
 
-4. Stop an ongoing operation.
+5. Stop an ongoing FFmpeg operation.
     ```
     [MobileFFmpeg cancel];
     ```
 
-5. Get media information for a file.
+6. Get media information for a file.
     ```
-    MediaInformation *mediaInformation = [MobileFFmpeg getMediaInformation:@"<file path or uri>"];
+    MediaInformation *mediaInformation = [MobileFFprobe getMediaInformation:@"<file path or uri>"];
     ```
 
-6. Record video and audio using IOS camera
+7. Record video and audio using iOS camera. This operation is not supported on `tvOS` since `AVFoundation` is not available on `tvOS`.
 
     ```
     [MobileFFmpeg execute: @"-f avfoundation -r 30 -video_size 1280x720 -pixel_format bgr0 -i 0:0 -vcodec h264_videotoolbox -vsync 2 -f h264 -t 00:00:05 %@", recordFilePath];
     ```
 
-7. List enabled external libraries.
+8. List enabled external libraries.
     ```
     NSArray *externalLibraries = [MobileFFmpegConfig getExternalLibraries];
     ```
 
-8. Enable log callback.
+9. Enable log callback.
     ```
     [MobileFFmpegConfig setLogDelegate:self];
 
@@ -230,7 +309,7 @@ There are eight different binary packages. Below you can see which system librar
     }
     ```
 
-9. Enable statistics callback.
+10. Enable statistics callback.
     ```
     [MobileFFmpegConfig setStatisticsDelegate:self];
 
@@ -241,130 +320,238 @@ There are eight different binary packages. Below you can see which system librar
     }
     ```
 
-10. Set log level.
+11. Set log level.
     ```
     [MobileFFmpegConfig setLogLevel:AV_LOG_FATAL];
     ```
 
-11. Register custom fonts directory.
+12. Register custom fonts directory.
     ```
     [MobileFFmpegConfig setFontDirectory:@"<folder with fonts>" with:nil];
     ```
-    
-#### 2.3 Test Application
-You can see how MobileFFmpeg is used inside an application by running test applications provided.
-There is an Android test application under the `android/test-app` folder and an IOS test application, which requires 
-`Xcode 9.x` or later, under the `ios/test-app` folder. Both applications are identical and supports command 
-execution, video encoding, accessing https, encoding audio, burning subtitles and video stabilization.
 
-<img src="https://github.com/tanersener/mobile-ffmpeg/blob/master/docs/assets/ios_test_app.gif" width="240">
+#### 2.3 Manual Installation
+##### 2.3.1 Android
+
+You can import `MobileFFmpeg` aar packages in `Android Studio` using the `File` -> `New` -> `New Module` -> `Import .JAR/.AAR Package` menu.
+
+##### 2.3.2 iOS / tvOS
+
+iOS and tvOS frameworks can be installed manually using the [Importing Frameworks](https://github.com/tanersener/mobile-ffmpeg/wiki/Importing-Frameworks) guide. 
+If you want to use universal binaries please refer to [Using Universal Binaries](https://github.com/tanersener/mobile-ffmpeg/wiki/Using-Universal-Binaries) guide.   
+    
+#### 2.4 Test Application
+You can see how MobileFFmpeg is used inside an application by running test applications provided.
+There is an `Android` test application under the `android/test-app` folder, an `iOS` test application under the 
+`ios/test-app` folder and a `tvOS` test application under the `tvos/test-app` folder. 
+
+All applications are identical and supports command execution, video encoding, accessing https, encoding audio, 
+burning subtitles, video stabilization and pipe operations.
+
+<img src="https://github.com/tanersener/mobile-ffmpeg/blob/master/docs/assets/android_test_app.gif" width="240">
 
 ### 3. Versions
 
-`MobileFFmpeg` uses the same version number as `FFmpeg` since `v4.2`. Before that, `MobileFFmpeg` version of a release and `FFmpeg` version included in that release was different, as shown in the following table. 
+`MobileFFmpeg` version number is aligned with `FFmpeg` since version `4.2`. 
 
-|        | v1.0 | v1.1 | v1.2 | v2.0 | v2.1 | v2.2 | v3.0 | v3.1 | v4.2 |
-| :----: | :----: | :----: | :----: | :----: | :----: | :----: | :----: | :----: | :----: |
-| FFmpeg | 3.4.2 | 3.4.2 | 3.4.4 | 4.0.1 | 4.0.2 | 4.0.3 | 4.1-dev-1517 | v4.1-10 | v4.2-dev-480 |
-| packages | min<br/>full | min<br/>min-gpl<br/>https<br/>https-gpl<br/>full<br/>full-gpl | min<br/>min-gpl<br/>https<br/>https-gpl<br/>full<br/>full-gpl | min<br/>min-gpl<br/>https<br/>https-gpl<br/>full<br/>full-gpl | min<br/>min-gpl<br/>https<br/>https-gpl<br/>audio<br/>video<br/>full<br/>full-gpl | min<br/>min-gpl<br/>https<br/>https-gpl<br/>audio<br/>video<br/>full<br/>full-gpl | min<br/>min-gpl<br/>https<br/>https-gpl<br/>audio<br/>video<br/>full<br/>full-gpl | min<br/>min-gpl<br/>https<br/>https-gpl<br/>audio<br/>video<br/>full<br/>full-gpl | min<br/>min-gpl<br/>https<br/>https-gpl<br/>audio<br/>video<br/>full<br/>full-gpl |
+In previous versions, `MobileFFmpeg` version of a release and `FFmpeg` version included in that release was different. 
+The following table lists `FFmpeg` versions used in `MobileFFmpeg` releases.
+  
+- `dev` part in `FFmpeg` version number indicates that `FFmpeg` source is pulled from the `FFmpeg` `master` branch. 
+Exact version number is obtained using `git describe --tags`. 
+
+|  MobileFFmpeg Version | FFmpeg Version | Release Date |
+| :----: | :----: |:----: |
+| [4.3.1](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v4.3.1) | 4.3-dev-1944 | Jan 25, 2020 |
+| [4.3.1.LTS](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v4.3.1.LTS) | 4.3-dev-1944 | Jan 25, 2020 |
+| [4.3](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v4.3) | 4.3-dev-1181 | Oct 27, 2019 |
+| [4.2.2](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v4.2.2) | 4.2-dev-1824 | July 3, 2019 |
+| [4.2.2.LTS](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v4.2.2.LTS) | 4.2-dev-1824 | July 3, 2019 |
+| [4.2.1](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v4.2.1) | 4.2-dev-1156 | Apr 2, 2019 |
+| [4.2](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v4.2) | 4.2-dev-480 | Jan 3, 2019 |
+| [4.2.LTS](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v4.2.LTS) | 4.2-dev-480 | Jan 3, 2019 |
+| [3.1](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v3.1) | 4.1-10 | Dec 11, 2018 |
+| [3.0](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v3.0) | 4.1-dev-1517 | Oct 25, 2018 |
+| [2.2](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v2.2) | 4.0.3 | Nov 10, 2018 |
+| [2.1.1](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v2.1.1) | 4.0.2 | Sep 19, 2018 |
+| [2.1](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v2.1) | 4.0.2 | Sep 5, 2018 |
+| [2.0](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v2.0) | 4.0.1 | Jun 30, 2018 |
+| [1.2](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v1.2) | 3.4.4 | Aug 30, 2018|
+| [1.1](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v1.1) | 3.4.2 | Jun 18, 2018 |
+| [1.0](https://github.com/tanersener/mobile-ffmpeg/releases/tag/v1.0) | 3.4.2 | Jun 6, 2018 |
 
 ### 4. LTS Releases
 
 Starting from `v4.2`, `MobileFFmpeg` binaries are published in two different variants: `Main Release` and `LTS Release`. 
 
-- Main releases include complete functionality of the library and support the latest SDK/API features
+- Main releases include complete functionality of the library and support the latest SDK/API features.
 
-- LTS releases are customized to support a wide range of devices. They are built using older API/SDK versions, so some features are not available for them
+- LTS releases are customized to support a wider range of devices. They are built using older API/SDK versions, so some features are not available on them.
 
 This table shows the differences between two variants.
 
 |        | Main Release | LTS Release |
 | :----: | :----: | :----: |
-| Android API Level | 24 | 21 | 
-| Android Camera Access | x | - |
-| Android Architectures | arm-v7a-neon<br/>arm64-v8a<br/>x86<br/>x86-64</br> | arm-v7a<br/>arm-v7a-neon<br/>arm64-v8a<br/>x86<br/>x86-64</br> |
-| IOS SDK | 12.1 | 9.3 |
+| Android API Level | 24 | 16 | 
+| Android Camera Access | Yes | - |
+| Android Architectures | arm-v7a-neon<br/>arm64-v8a<br/>x86<br/>x86-64 | arm-v7a<br/>arm-v7a-neon<br/>arm64-v8a<br/>x86<br/>x86-64 |
 | Xcode Support | 10.1 | 7.3.1 |
-| IOS Architectures | arm64<br/>arm64e<br/>x86-64</br> | armv7<br/>arm64<br/>i386<br/>x86-64</br> |
+| iOS SDK | 12.1 | 9.3 |
+| iOS Architectures | arm64<br/>arm64e<br/>x86-64 | armv7<br/>arm64<br/>i386<br/>x86-64 |
+| tvOS SDK | 10.2 | 9.2 |
+| tvOS Architectures | arm64<br/>x86-64 | arm64<br/>x86-64 |
 
 ### 5. Building
+
+Build scripts from `master` and `development` branches are tested periodically. See the latest status from the table below.
+
+| branch | status |
+| :---: | :---: |
+|  master | [![Build Status](https://travis-ci.org/tanersener/mobile-ffmpeg.svg?branch=master)](https://travis-ci.org/tanersener/mobile-ffmpeg) |
+|  development | [![Build Status](https://travis-ci.org/tanersener/mobile-ffmpeg.svg?branch=development)](https://travis-ci.org/tanersener/mobile-ffmpeg) |
+
+
 #### 5.1 Prerequisites
 1. Use your package manager (apt, yum, dnf, brew, etc.) to install the following packages.
 
     ```
-    autoconf automake libtool pkg-config curl cmake gcc gperf texinfo yasm nasm bison autogen patch
+    autoconf automake libtool pkg-config curl cmake gcc gperf texinfo yasm nasm bison autogen patch git
     ```
 Some of these packages are not mandatory for the default build.
-Please visit [Android Prerequisites](https://github.com/tanersener/mobile-ffmpeg/wiki/Android-Prerequisites) and
-[IOS Prerequisites](https://github.com/tanersener/mobile-ffmpeg/wiki/IOS-Prerequisites) for the details.
+Please visit [Android Prerequisites](https://github.com/tanersener/mobile-ffmpeg/wiki/Android-Prerequisites), 
+[iOS Prerequisites](https://github.com/tanersener/mobile-ffmpeg/wiki/iOS-Prerequisites) and 
+[tvOS Prerequisites](https://github.com/tanersener/mobile-ffmpeg/wiki/tvOS-Prerequisites) for the details.
 
 2. Android builds require these additional packages.
-    - **Android SDK 5.0 Lollipop (API Level 21)** or later
-    - **Android NDK r17c** or later with LLDB and CMake
+    - **Android SDK 4.1 Jelly Bean (API Level 16)** or later
+    - **Android NDK r20** or later with LLDB and CMake
 
-3. IOS builds need these extra packages and tools.
-    - **IOS SDK 8.0.x** or later
+3. iOS builds need these extra packages and tools.
     - **Xcode 7.3.1** or later
+    - **iOS SDK 9.3** or later
+    - **Command Line Tools**
+
+4. tvOS builds need these extra packages and tools.
+    - **Xcode 7.3.1** or later
+    - **tvOS SDK 9.2** or later
     - **Command Line Tools**
 
 #### 5.2 Build Scripts
-Use `android.sh` and `ios.sh` to build MobileFFmpeg for each platform.
-After a successful build, compiled FFmpeg and MobileFFmpeg libraries can be found under `prebuilt` directory.
+Use `android.sh`, `ios.sh` and `tvos.sh` to build MobileFFmpeg for each platform. 
 
-Both `android.sh` and `ios.sh` can be customized to override default settings,
-[android.sh](https://github.com/tanersener/mobile-ffmpeg/wiki/android.sh) and
-[ios.sh](https://github.com/tanersener/mobile-ffmpeg/wiki/ios.sh) wiki pages include all available build options.
+All three scripts support additional options and 
+can be customized to enable/disable specific external libraries and/or architectures. Please refer to wiki pages of
+[android.sh](https://github.com/tanersener/mobile-ffmpeg/wiki/android.sh), 
+[ios.sh](https://github.com/tanersener/mobile-ffmpeg/wiki/ios.sh) and 
+[tvos.sh](https://github.com/tanersener/mobile-ffmpeg/wiki/tvos.sh) to see all available build options.
 ##### 5.2.1 Android 
 ```
+export ANDROID_HOME=<Android SDK Path>
 export ANDROID_NDK_ROOT=<Android NDK Path>
 ./android.sh
 ```
 
 <img src="https://github.com/tanersener/mobile-ffmpeg/blob/master/docs/assets/android_custom.gif" width="600">
 
-##### 5.2.2 IOS
+##### 5.2.2 iOS
 ```
-./ios.sh    
+./ios.sh
 ```
 
 <img src="https://github.com/tanersener/mobile-ffmpeg/blob/master/docs/assets/ios_custom.gif" width="600">
 
-##### 5.2.3 Building LTS Binaries
+##### 5.2.3 tvOS
+```
+./tvos.sh
+```
+
+<img src="https://github.com/tanersener/mobile-ffmpeg/blob/master/docs/assets/tvos_custom.gif" width="600">
+
+
+##### 5.2.4 Building LTS Binaries
 
 Use `--lts` option to build lts binaries for each platform.
 
-#### 5.3 GPL Support
-It is possible to enable GPL licensed libraries `x264`, `xvidcore` since `v1.1` and `vid.stab`, `x265` since `v2.1` 
-from the top level build scripts.
-Their source code is not included in the repository and downloaded when enabled.
+#### 5.3 Build Output
 
-#### 5.4 External Libraries
-`build` directory includes build scripts for external libraries. There are two scripts for each library, one for Android
-and one for IOS. They include all options/flags used to cross-compile the libraries. `ASM` is enabled by most of them, 
-exceptions are listed under the [ASM Support](https://github.com/tanersener/mobile-ffmpeg/wiki/ASM-Support) page.
+All libraries created by the top level build scripts (`android.sh`, `ios.sh` and `tvos.sh`) can be found under 
+the `prebuilt` directory.
+
+- `Android` archive (.aar file) is located under the `android-aar` folder
+- `iOS` frameworks are located under the `ios-framework`folder
+- `iOS` universal binaries are located under the `ios-universal`folder
+- `tvOS` frameworks are located under the `tvos-framework`folder
+- `tvOS` universal binaries are located under the `tvos-universal`folder 
+
+#### 5.4 GPL Support
+It is possible to enable GPL licensed libraries `x264`, `xvidcore` since `v1.1` and `vid.stab`, `x265` since `v2.1` 
+from the top level build scripts. Their source code is not included in the repository and downloaded when enabled.
+
+#### 5.5 External Libraries
+`build` directory includes build scripts of all external libraries. Two scripts exist for each external library, 
+one for `Android` and one for `iOS / tvOS`. Each of these two scripts contains options/flags used to cross-compile the 
+library on the specified mobile platform. 
+
+CPU optimizations (`ASM`) are enabled for most of the external libraries. Details and exceptions can be found under the 
+[ASM Support](https://github.com/tanersener/mobile-ffmpeg/wiki/ASM-Support) wiki page.
 
 ### 6. Documentation
 
 A more detailed documentation is available at [Wiki](https://github.com/tanersener/mobile-ffmpeg/wiki).
 
-### 7. License
+### 7. Contributors
+
+#### 7.1 Code Contributors
+
+This project exists thanks to all the people who contribute. [[Contribute](CONTRIBUTING.md)].
+<a href="https://github.com/tanersener/mobile-ffmpeg/graphs/contributors"><img src="https://opencollective.com/mobile-ffmpeg/contributors.svg?width=890&button=false" /></a>
+
+#### 7.2 Financial Contributors
+
+Become a financial contributor and help us sustain our community. [[Contribute](https://opencollective.com/mobile-ffmpeg/contribute)]
+
+##### 7.2.1 Individuals
+
+<a href="https://opencollective.com/mobile-ffmpeg"><img src="https://opencollective.com/mobile-ffmpeg/individuals.svg?width=890"></a>
+
+##### 7.2.2 Organizations
+
+Support this project with your organization. Your logo will show up here with a link to your website. [[Contribute](https://opencollective.com/mobile-ffmpeg/contribute)]
+
+<a href="https://opencollective.com/mobile-ffmpeg/organization/0/website"><img src="https://opencollective.com/mobile-ffmpeg/organization/0/avatar.svg"></a>
+<a href="https://opencollective.com/mobile-ffmpeg/organization/1/website"><img src="https://opencollective.com/mobile-ffmpeg/organization/1/avatar.svg"></a>
+<a href="https://opencollective.com/mobile-ffmpeg/organization/2/website"><img src="https://opencollective.com/mobile-ffmpeg/organization/2/avatar.svg"></a>
+<a href="https://opencollective.com/mobile-ffmpeg/organization/3/website"><img src="https://opencollective.com/mobile-ffmpeg/organization/3/avatar.svg"></a>
+<a href="https://opencollective.com/mobile-ffmpeg/organization/4/website"><img src="https://opencollective.com/mobile-ffmpeg/organization/4/avatar.svg"></a>
+<a href="https://opencollective.com/mobile-ffmpeg/organization/5/website"><img src="https://opencollective.com/mobile-ffmpeg/organization/5/avatar.svg"></a>
+<a href="https://opencollective.com/mobile-ffmpeg/organization/6/website"><img src="https://opencollective.com/mobile-ffmpeg/organization/6/avatar.svg"></a>
+<a href="https://opencollective.com/mobile-ffmpeg/organization/7/website"><img src="https://opencollective.com/mobile-ffmpeg/organization/7/avatar.svg"></a>
+<a href="https://opencollective.com/mobile-ffmpeg/organization/8/website"><img src="https://opencollective.com/mobile-ffmpeg/organization/8/avatar.svg"></a>
+<a href="https://opencollective.com/mobile-ffmpeg/organization/9/website"><img src="https://opencollective.com/mobile-ffmpeg/organization/9/avatar.svg"></a>
+
+### 8. License
 
 This project is licensed under the LGPL v3.0. However, if source code is built using optional `--enable-gpl` flag or 
 prebuilt binaries with `-gpl` postfix are used then MobileFFmpeg is subject to the GPL v3.0 license.
 
 Source code of FFmpeg and external libraries is included in compliance with their individual licenses.
 
-`strip-frameworks.sh` script included and distributed is published under the [Apache License version 2.0](https://www.apache.org/licenses/LICENSE-2.0).
+`openh264` source code included in this repository is licensed under the 2-clause BSD License but this license does 
+not cover the `MPEG LA` licensing fees. If you build `mobile-ffmpeg` with `openh264` and distribute that library, then 
+you are subject to pay `MPEG LA` licensing fees. Refer to [OpenH264 FAQ](https://www.openh264.org/faq.html) page for 
+the details. Please note that `mobile-ffmpeg` does not publish a binary with `openh264` inside.
 
-In test applications, fonts embedded are licensed under the [SIL Open Font License](https://opensource.org/licenses/OFL-1.1); other digital assets are published in the public domain.
+`strip-frameworks.sh` script included and distributed (until v4.x) is published under the [Apache License version 2.0](https://www.apache.org/licenses/LICENSE-2.0).
+
+In test applications; embedded fonts are licensed under the [SIL Open Font License](https://opensource.org/licenses/OFL-1.1), other digital assets are published in the public domain.
 
 Please visit [License](https://github.com/tanersener/mobile-ffmpeg/wiki/License) page for the details.
 
-### 8. Contributing
+### 9. Contributing
 
 If you have any recommendations or ideas to improve it, please feel free to submit issues or pull requests. Any help is appreciated.
 
-### 9. See Also
+### 10. See Also
 
 - [libav gas-preprocessor](https://github.com/libav/gas-preprocessor/raw/master/gas-preprocessor.pl)
 - [FFmpeg API Documentation](https://ffmpeg.org/doxygen/4.0/index.html)

android/.gitignore

@@ -1,12 +1,10 @@
 *.iml
 .gradle
-/local.properties
-/.idea/workspace.xml
-/.idea/libraries
+local.properties
 .DS_Store
-/build
-/captures
+build
+captures
 .externalNativeBuild
-/.idea/
-/obj/
-/libs/
+.idea
+obj
+libs

android/app/.gitignore

@@ -1,2 +0,0 @@
-/build
-/local.properties

android/app/Doxyfile

@@ -38,7 +38,7 @@ PROJECT_NAME           = "MobileFFmpeg Android API"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 4.2
+PROJECT_NUMBER         = 4.3.1
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

android/app/build.gradle

@@ -1,15 +1,15 @@
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 27
+    compileSdkVersion 29
 
     defaultConfig {
         minSdkVersion 24
-        targetSdkVersion 27
-        versionCode 240420
-        versionName "4.2"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        targetSdkVersion 29
+        versionCode 240431
+        versionName "4.3.1"
         project.archivesBaseName = "mobile-ffmpeg"
+        consumerProguardFiles 'proguard-rules.pro'
     }
 
     buildTypes {
@@ -28,14 +28,6 @@ android {
     testOptions {
         unitTests.returnDefaultValues = true
     }
-
-    libraryVariants.all { variant ->
-        variant.outputs.all { output ->
-            if (outputFile != null && outputFileName.endsWith('.aar')) {
-                outputFileName = "${archivesBaseName}-${android.defaultConfig.versionName}.aar"
-            }
-        }
-    }
 }
 
 task javadoc(type: Javadoc) {
@@ -45,16 +37,6 @@ task javadoc(type: Javadoc) {
     source = android.sourceSets.main.java.srcDirs
 }
 
-afterEvaluate {
-    javadoc.classpath += files(android.libraryVariants.collect { variant ->
-        variant.javaCompile.classpath.files
-    })
-}
-
 dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation 'com.android.support:appcompat-v7:27.1.1'
-    testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.2'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+    testImplementation "androidx.test.ext:junit:1.1.1"
 }

android/app/proguard-rules.pro

@@ -5,17 +5,12 @@
 # For more details, see
 #   http://developer.android.com/guide/developing/tools/proguard.html
 
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
+-keep class com.arthenica.mobileffmpeg.Config {
+    native <methods>;
+    void log(int, byte[]);
+    void statistics(int, float, float, long , int, double, double);
+}
 
-# Uncomment this to preserve the line number information for
-# debugging stack traces.
-#-keepattributes SourceFile,LineNumberTable
-
-# If you keep the line number information, uncomment this to
-# hide the original source file name.
-#-renamesourcefileattribute SourceFile
+-keep class com.arthenica.mobileffmpeg.AbiDetect {
+    native <methods>;
+}

android/app/src/androidTest/java/com/arthenica/mobileffmpeg/ExampleInstrumentedTest.java

@@ -1,45 +0,0 @@
-/*
- * Copyright (c) 2018 Taner Sener
- *
- * This file is part of MobileFFmpeg.
- *
- * MobileFFmpeg is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * MobileFFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.arthenica.mobileffmpeg;
-
-import android.content.Context;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import static org.junit.Assert.*;
-
-/**
- * Instrumented test, which will execute on an Android device.
- *
- * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
- */
-@RunWith(AndroidJUnit4.class)
-public class ExampleInstrumentedTest {
-    @Test
-    public void useAppContext() throws Exception {
-        // Context of the app under test.
-        Context appContext = InstrumentationRegistry.getTargetContext();
-
-        assertEquals("com.arthenica.mobileffmpeg", appContext.getPackageName());
-    }
-}

android/app/src/main/AndroidManifest.xml

@@ -1,11 +1,4 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.arthenica.mobileffmpeg">
 
-    <application
-        android:allowBackup="true"
-        android:icon="@mipmap/ic_launcher"
-        android:label="@string/app_name"
-        android:roundIcon="@mipmap/ic_launcher_round"
-        android:supportsRtl="true"
-        android:theme="@style/AppTheme"/>
 </manifest>

android/app/src/main/cpp/.gitignore

@@ -0,0 +1,2 @@
+/android_lts_support.o
+/libandroidltssupport.a

android/app/src/main/cpp/android_lts_support.c

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <math.h>
+#include <errno.h>
+#include <malloc.h>
+#include <stdlib.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if __ANDROID_API__ < 17
+
+int posix_memalign(void** memptr, size_t alignment, size_t size) {
+  if ((alignment & (alignment - 1)) != 0 || alignment == 0) {
+    return EINVAL;
+  }
+
+  if (alignment % sizeof(void*) != 0) {
+    return EINVAL;
+  }
+
+  *memptr = memalign(alignment, size);
+  if (*memptr == NULL) {
+    return errno;
+  }
+
+  return 0;
+}
+
+#endif /* __ANDROID_API__ < 17 */
+
+double log2(double x) {
+    return (log(x) / M_LN2);
+}
+
+float log2f(float x) {
+ return (float) log2((double) x);
+}
+
+#ifdef __cplusplus
+};  /* end of extern "C" */
+#endif

android/app/src/main/cpp/fftools_cmdutils.c

@@ -20,6 +20,14 @@
  */
 
 /*
+ * CHANGES 01.2020
+ * - ffprobe support changes
+ * - (optindex < argc) validation in parse_options() method updated with (optindex >= argc) check
+ *
+ * CHANGES 12.2019
+ * - Concurrent execution support
+ * - log_callback_report method re-added to fix -report option issues
+ *
  * CHANGES 08.2018
  * --------------------------------------------------------
  * - fftools_ prefix added to file name and parent header
@@ -85,15 +93,19 @@
 
 static int init_report(const char *env);
 extern void mobileffmpeg_log_callback_function(void *ptr, int level, const char* format, va_list vargs);
+extern void (*report_callback)(int, float, float, int64_t, int, double, double);
 
-AVDictionary *sws_dict;
-AVDictionary *swr_opts;
-AVDictionary *format_opts, *codec_opts, *resample_opts;
+__thread char *program_name;
+__thread int program_birth_year;
 
-static FILE *report_file;
-static int report_file_level = AV_LOG_DEBUG;
-int hide_banner = 0;
-int longjmp_value = 0;
+__thread AVDictionary *sws_dict;
+__thread AVDictionary *swr_opts;
+__thread AVDictionary *format_opts, *codec_opts, *resample_opts;
+
+FILE *report_file;
+int report_file_level = AV_LOG_DEBUG;
+__thread int hide_banner = 0;
+__thread int longjmp_value = 0;
 
 enum show_muxdemuxers {
     SHOW_DEFAULT,
@@ -115,9 +127,29 @@ void uninit_opts(void)
     av_dict_free(&resample_opts);
 }
 
+void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
+{
+    va_list vl2;
+    char line[1024];
+    static int print_prefix = 1;
+
+    va_copy(vl2, vl);
+    if (report_callback == NULL) {
+        av_log_default_callback(ptr, level, fmt, vl);
+    } else {
+        mobileffmpeg_log_callback_function(ptr, level, fmt, vl);
+    }
+    av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
+    va_end(vl2);
+    if (report_file_level >= level) {
+        fputs(line, report_file);
+        fflush(report_file);
+    }
+}
+
 void init_dynload(void)
 {
-#ifdef _WIN32
+#if HAVE_SETDLLDIRECTORY
     /* Calling SetDllDirectory with the empty string (but not NULL) removes the
      * current working directory from the DLL search path as a security pre-caution. */
     SetDllDirectory("");
@@ -191,7 +223,7 @@ void show_help_options(const OptionDef *options, const char *msg, int req_flags,
             continue;
 
         if (first) {
-            printf("%s\n", msg);
+            av_log(NULL, AV_LOG_STDERR, "%s\n", msg);
             first = 0;
         }
         av_strlcpy(buf, po->name, sizeof(buf));
@@ -199,9 +231,9 @@ void show_help_options(const OptionDef *options, const char *msg, int req_flags,
             av_strlcat(buf, " ", sizeof(buf));
             av_strlcat(buf, po->argname, sizeof(buf));
         }
-        printf("-%-17s  %s\n", buf, po->help);
+        av_log(NULL, AV_LOG_STDERR, "-%-17s  %s\n", buf, po->help);
     }
-    printf("\n");
+    av_log(NULL, AV_LOG_STDERR, "\n");
 }
 
 void show_help_children(const AVClass *class, int flags)
@@ -209,7 +241,7 @@ void show_help_children(const AVClass *class, int flags)
     const AVClass *child = NULL;
     if (class->option) {
         av_opt_show2(&class, NULL, flags, 0);
-        printf("\n");
+        av_log(NULL, AV_LOG_STDERR, "\n");
     }
 
     while ((child = av_opt_child_class_next(class, child)))
@@ -401,12 +433,14 @@ void parse_options(void *optctx, int argc, char **argv, const OptionDef *options
                 continue;
             }
             opt++;
-
-            if (optindex < argc) {
+            if (optindex >= argc) {
+                if ((ret = parse_option(optctx, opt, NULL, options)) < 0)
+                    exit_program(1);
+            } else {
                 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
                     exit_program(1);
-                optindex += ret;
             }
+            optindex += ret;
         } else {
             if (parse_arg_function)
                 parse_arg_function(optctx, opt);
@@ -473,7 +507,7 @@ int locate_option(int argc, char **argv, const OptionDef *options,
     return 0;
 }
 
-static void dump_argument(const char *a)
+void dump_argument(const char *a)
 {
     const unsigned char *p;
 
@@ -812,7 +846,7 @@ do {                                                                           \
                 if (optindex < argc) {
                     arg = argv[optindex++];
                 } else {
-                    arg = "";
+                    arg = NULL;
                 }
             } else if (po->flags & HAS_ARG) {
                 GET_ARG(arg);
@@ -856,8 +890,8 @@ do {                                                                           \
     }
 
     if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
-        av_log(NULL, AV_LOG_WARNING, "Trailing options were found on the "
-               "commandline.\n");
+        av_log(NULL, AV_LOG_WARNING, "Trailing option(s) found in the "
+               "command: may be ignored.\n");
 
     av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
 
@@ -983,11 +1017,12 @@ static void expand_filename_template(AVBPrint *bp, const char *template,
     }
 }
 
-static int init_report(const char *env)
+int init_report(const char *env)
 {
     char *filename_template = NULL;
     char *key, *val;
     int ret, count = 0;
+    int prog_loglevel, envlevel = 0;
     time_t now;
     struct tm *tm;
     AVBPrint filename;
@@ -1019,6 +1054,7 @@ static int init_report(const char *env)
                 av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
                 exit_program(1);
             }
+            envlevel = 1;
         } else {
             av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
         }
@@ -1035,6 +1071,10 @@ static int init_report(const char *env)
         return AVERROR(ENOMEM);
     }
 
+    prog_loglevel = av_log_get_level();
+    if (!envlevel)
+        report_file_level = FFMAX(report_file_level, prog_loglevel);
+
     report_file = fopen(filename.str, "w");
     if (!report_file) {
         int ret = AVERROR(errno);
@@ -1042,19 +1082,20 @@ static int init_report(const char *env)
                filename.str, strerror(errno));
         return ret;
     }
-    av_log_set_callback(mobileffmpeg_log_callback_function);
+    av_log_set_callback(log_callback_report);
     av_log(NULL, AV_LOG_INFO,
            "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
-           "Report written to \"%s\"\n",
+           "Report written to \"%s\"\n"
+           "Log level: %d\n",
            program_name,
            tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
            tm->tm_hour, tm->tm_min, tm->tm_sec,
-           filename.str);
+           filename.str, report_file_level);
     av_bprint_finalize(&filename, NULL);
     return 0;
 }
 
-int opt_report(const char *opt)
+int opt_report(void *optctx, const char *opt, const char *arg)
 {
     return init_report(NULL);
 }
@@ -1096,7 +1137,7 @@ void print_error(const char *filename, int err)
     av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
 }
 
-static int warned_cfg = 0;
+__thread int warned_cfg = 0;
 
 #define INDENT        1
 #define SHOW_VERSION  2
@@ -1196,7 +1237,6 @@ void show_banner(int argc, char **argv, const OptionDef *options)
 
 int show_version(void *optctx, const char *opt, const char *arg)
 {
-    av_log_set_callback(mobileffmpeg_log_callback_function);
     print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO);
     print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
 
@@ -1205,7 +1245,6 @@ int show_version(void *optctx, const char *opt, const char *arg)
 
 int show_buildconf(void *optctx, const char *opt, const char *arg)
 {
-    av_log_set_callback(mobileffmpeg_log_callback_function);
     print_buildconf      (INDENT|0, AV_LOG_INFO);
 
     return 0;
@@ -1214,12 +1253,12 @@ int show_buildconf(void *optctx, const char *opt, const char *arg)
 int show_license(void *optctx, const char *opt, const char *arg)
 {
 #if CONFIG_NONFREE
-    printf(
+    av_log(NULL, AV_LOG_STDERR,
     "This version of %s has nonfree parts compiled in.\n"
     "Therefore it is not legally redistributable.\n",
     program_name );
 #elif CONFIG_GPLV3
-    printf(
+    av_log(NULL, AV_LOG_STDERR,
     "%s is free software; you can redistribute it and/or modify\n"
     "it under the terms of the GNU General Public License as published by\n"
     "the Free Software Foundation; either version 3 of the License, or\n"
@@ -1234,7 +1273,7 @@ int show_license(void *optctx, const char *opt, const char *arg)
     "along with %s.  If not, see <http://www.gnu.org/licenses/>.\n",
     program_name, program_name, program_name );
 #elif CONFIG_GPL
-    printf(
+    av_log(NULL, AV_LOG_STDERR,
     "%s is free software; you can redistribute it and/or modify\n"
     "it under the terms of the GNU General Public License as published by\n"
     "the Free Software Foundation; either version 2 of the License, or\n"
@@ -1250,7 +1289,7 @@ int show_license(void *optctx, const char *opt, const char *arg)
     "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
     program_name, program_name, program_name );
 #elif CONFIG_LGPLV3
-    printf(
+    av_log(NULL, AV_LOG_STDERR,
     "%s is free software; you can redistribute it and/or modify\n"
     "it under the terms of the GNU Lesser General Public License as published by\n"
     "the Free Software Foundation; either version 3 of the License, or\n"
@@ -1265,7 +1304,7 @@ int show_license(void *optctx, const char *opt, const char *arg)
     "along with %s.  If not, see <http://www.gnu.org/licenses/>.\n",
     program_name, program_name, program_name );
 #else
-    printf(
+    av_log(NULL, AV_LOG_STDERR,
     "%s is free software; you can redistribute it and/or\n"
     "modify it under the terms of the GNU Lesser General Public\n"
     "License as published by the Free Software Foundation; either\n"
@@ -1301,7 +1340,7 @@ static int show_formats_devices(void *optctx, const char *opt, const char *arg,
     const char *last_name;
     int is_dev;
 
-    printf("%s\n"
+    av_log(NULL, AV_LOG_STDERR, "%s\n"
            " D. = Demuxing supported\n"
            " .E = Muxing supported\n"
            " --\n", device_only ? "Devices:" : "File formats:");
@@ -1346,7 +1385,7 @@ static int show_formats_devices(void *optctx, const char *opt, const char *arg,
             break;
         last_name = name;
 
-        printf(" %s%s %-15s %s\n",
+        av_log(NULL, AV_LOG_STDERR, " %s%s %-15s %s\n",
                decode ? "D" : " ",
                encode ? "E" : " ",
                name,
@@ -1379,97 +1418,97 @@ int show_devices(void *optctx, const char *opt, const char *arg)
     if (codec->field) {                                                      \
         const type *p = codec->field;                                        \
                                                                              \
-        printf("    Supported " list_name ":");                              \
+        av_log(NULL, AV_LOG_STDERR, "    Supported " list_name ":");                              \
         while (*p != term) {                                                 \
             get_name(*p);                                                    \
-            printf(" %s", name);                                             \
+            av_log(NULL, AV_LOG_STDERR, " %s", name);                                             \
             p++;                                                             \
         }                                                                    \
-        printf("\n");                                                        \
+        av_log(NULL, AV_LOG_STDERR, "\n");                                                        \
     }                                                                        \
 
 static void print_codec(const AVCodec *c)
 {
     int encoder = av_codec_is_encoder(c);
 
-    printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
+    av_log(NULL, AV_LOG_STDERR, "%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
            c->long_name ? c->long_name : "");
 
-    printf("    General capabilities: ");
+    av_log(NULL, AV_LOG_STDERR, "    General capabilities: ");
     if (c->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)
-        printf("horizband ");
+        av_log(NULL, AV_LOG_STDERR, "horizband ");
     if (c->capabilities & AV_CODEC_CAP_DR1)
-        printf("dr1 ");
+        av_log(NULL, AV_LOG_STDERR, "dr1 ");
     if (c->capabilities & AV_CODEC_CAP_TRUNCATED)
-        printf("trunc ");
+        av_log(NULL, AV_LOG_STDERR, "trunc ");
     if (c->capabilities & AV_CODEC_CAP_DELAY)
-        printf("delay ");
+        av_log(NULL, AV_LOG_STDERR, "delay ");
     if (c->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME)
-        printf("small ");
+        av_log(NULL, AV_LOG_STDERR, "small ");
     if (c->capabilities & AV_CODEC_CAP_SUBFRAMES)
-        printf("subframes ");
+        av_log(NULL, AV_LOG_STDERR, "subframes ");
     if (c->capabilities & AV_CODEC_CAP_EXPERIMENTAL)
-        printf("exp ");
+        av_log(NULL, AV_LOG_STDERR, "exp ");
     if (c->capabilities & AV_CODEC_CAP_CHANNEL_CONF)
-        printf("chconf ");
+        av_log(NULL, AV_LOG_STDERR, "chconf ");
     if (c->capabilities & AV_CODEC_CAP_PARAM_CHANGE)
-        printf("paramchange ");
+        av_log(NULL, AV_LOG_STDERR, "paramchange ");
     if (c->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
-        printf("variable ");
+        av_log(NULL, AV_LOG_STDERR, "variable ");
     if (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
                            AV_CODEC_CAP_SLICE_THREADS |
                            AV_CODEC_CAP_AUTO_THREADS))
-        printf("threads ");
+        av_log(NULL, AV_LOG_STDERR, "threads ");
     if (c->capabilities & AV_CODEC_CAP_AVOID_PROBING)
-        printf("avoidprobe ");
+        av_log(NULL, AV_LOG_STDERR, "avoidprobe ");
     if (c->capabilities & AV_CODEC_CAP_INTRA_ONLY)
-        printf("intraonly ");
+        av_log(NULL, AV_LOG_STDERR, "intraonly ");
     if (c->capabilities & AV_CODEC_CAP_LOSSLESS)
-        printf("lossless ");
+        av_log(NULL, AV_LOG_STDERR, "lossless ");
     if (c->capabilities & AV_CODEC_CAP_HARDWARE)
-        printf("hardware ");
+        av_log(NULL, AV_LOG_STDERR, "hardware ");
     if (c->capabilities & AV_CODEC_CAP_HYBRID)
-        printf("hybrid ");
+        av_log(NULL, AV_LOG_STDERR, "hybrid ");
     if (!c->capabilities)
-        printf("none");
-    printf("\n");
+        av_log(NULL, AV_LOG_STDERR, "none");
+    av_log(NULL, AV_LOG_STDERR, "\n");
 
     if (c->type == AVMEDIA_TYPE_VIDEO ||
         c->type == AVMEDIA_TYPE_AUDIO) {
-        printf("    Threading capabilities: ");
+        av_log(NULL, AV_LOG_STDERR, "    Threading capabilities: ");
         switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
                                    AV_CODEC_CAP_SLICE_THREADS |
                                    AV_CODEC_CAP_AUTO_THREADS)) {
         case AV_CODEC_CAP_FRAME_THREADS |
-             AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
-        case AV_CODEC_CAP_FRAME_THREADS: printf("frame");           break;
-        case AV_CODEC_CAP_SLICE_THREADS: printf("slice");           break;
-        case AV_CODEC_CAP_AUTO_THREADS : printf("auto");            break;
-        default:                         printf("none");            break;
+             AV_CODEC_CAP_SLICE_THREADS: av_log(NULL, AV_LOG_STDERR, "frame and slice"); break;
+        case AV_CODEC_CAP_FRAME_THREADS: av_log(NULL, AV_LOG_STDERR, "frame");           break;
+        case AV_CODEC_CAP_SLICE_THREADS: av_log(NULL, AV_LOG_STDERR, "slice");           break;
+        case AV_CODEC_CAP_AUTO_THREADS : av_log(NULL, AV_LOG_STDERR, "auto");            break;
+        default:                         av_log(NULL, AV_LOG_STDERR, "none");            break;
         }
-        printf("\n");
+        av_log(NULL, AV_LOG_STDERR, "\n");
     }
 
     if (avcodec_get_hw_config(c, 0)) {
-        printf("    Supported hardware devices: ");
+        av_log(NULL, AV_LOG_STDERR, "    Supported hardware devices: ");
         for (int i = 0;; i++) {
             const AVCodecHWConfig *config = avcodec_get_hw_config(c, i);
             if (!config)
                 break;
-            printf("%s ", av_hwdevice_get_type_name(config->device_type));
+            av_log(NULL, AV_LOG_STDERR, "%s ", av_hwdevice_get_type_name(config->device_type));
         }
-        printf("\n");
+        av_log(NULL, AV_LOG_STDERR, "\n");
     }
 
     if (c->supported_framerates) {
         const AVRational *fps = c->supported_framerates;
 
-        printf("    Supported framerates:");
+        av_log(NULL, AV_LOG_STDERR, "    Supported framerates:");
         while (fps->num) {
-            printf(" %d/%d", fps->num, fps->den);
+            av_log(NULL, AV_LOG_STDERR, " %d/%d", fps->num, fps->den);
             fps++;
         }
-        printf("\n");
+        av_log(NULL, AV_LOG_STDERR, "\n");
     }
     PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
                           AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
@@ -1544,12 +1583,12 @@ static void print_codecs_for_id(enum AVCodecID id, int encoder)
 {
     const AVCodec *codec = NULL;
 
-    printf(" (%s: ", encoder ? "encoders" : "decoders");
+    av_log(NULL, AV_LOG_STDERR, " (%s: ", encoder ? "encoders" : "decoders");
 
     while ((codec = next_codec_for_id(id, codec, encoder)))
-        printf("%s ", codec->name);
+        av_log(NULL, AV_LOG_STDERR, "%s ", codec->name);
 
-    printf(")");
+    av_log(NULL, AV_LOG_STDERR, ")");
 }
 
 int show_codecs(void *optctx, const char *opt, const char *arg)
@@ -1557,7 +1596,7 @@ int show_codecs(void *optctx, const char *opt, const char *arg)
     const AVCodecDescriptor **codecs;
     unsigned i, nb_codecs = get_codecs_sorted(&codecs);
 
-    printf("Codecs:\n"
+    av_log(NULL, AV_LOG_STDERR, "Codecs:\n"
            " D..... = Decoding supported\n"
            " .E.... = Encoding supported\n"
            " ..V... = Video codec\n"
@@ -1574,16 +1613,16 @@ int show_codecs(void *optctx, const char *opt, const char *arg)
         if (strstr(desc->name, "_deprecated"))
             continue;
 
-        printf(" ");
-        printf(avcodec_find_decoder(desc->id) ? "D" : ".");
-        printf(avcodec_find_encoder(desc->id) ? "E" : ".");
+        av_log(NULL, AV_LOG_STDERR, " ");
+        av_log(NULL, AV_LOG_STDERR, avcodec_find_decoder(desc->id) ? "D" : ".");
+        av_log(NULL, AV_LOG_STDERR, avcodec_find_encoder(desc->id) ? "E" : ".");
 
-        printf("%c", get_media_type_char(desc->type));
-        printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
-        printf((desc->props & AV_CODEC_PROP_LOSSY)      ? "L" : ".");
-        printf((desc->props & AV_CODEC_PROP_LOSSLESS)   ? "S" : ".");
+        av_log(NULL, AV_LOG_STDERR, "%c", get_media_type_char(desc->type));
+        av_log(NULL, AV_LOG_STDERR, (desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
+        av_log(NULL, AV_LOG_STDERR, (desc->props & AV_CODEC_PROP_LOSSY)      ? "L" : ".");
+        av_log(NULL, AV_LOG_STDERR, (desc->props & AV_CODEC_PROP_LOSSLESS)   ? "S" : ".");
 
-        printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
+        av_log(NULL, AV_LOG_STDERR, " %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
 
         /* print decoders/encoders when there's more than one or their
          * names are different from codec name */
@@ -1601,7 +1640,7 @@ int show_codecs(void *optctx, const char *opt, const char *arg)
             }
         }
 
-        printf("\n");
+        av_log(NULL, AV_LOG_STDERR, "\n");
     }
     av_free(codecs);
     return 0;
@@ -1612,7 +1651,7 @@ static void print_codecs(int encoder)
     const AVCodecDescriptor **codecs;
     unsigned i, nb_codecs = get_codecs_sorted(&codecs);
 
-    printf("%s:\n"
+    av_log(NULL, AV_LOG_STDERR, "%s:\n"
            " V..... = Video\n"
            " A..... = Audio\n"
            " S..... = Subtitle\n"
@@ -1628,18 +1667,18 @@ static void print_codecs(int encoder)
         const AVCodec *codec = NULL;
 
         while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
-            printf(" %c", get_media_type_char(desc->type));
-            printf((codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? "F" : ".");
-            printf((codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? "S" : ".");
-            printf((codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL)  ? "X" : ".");
-            printf((codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
-            printf((codec->capabilities & AV_CODEC_CAP_DR1)           ? "D" : ".");
+            av_log(NULL, AV_LOG_STDERR, " %c", get_media_type_char(desc->type));
+            av_log(NULL, AV_LOG_STDERR, (codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? "F" : ".");
+            av_log(NULL, AV_LOG_STDERR, (codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? "S" : ".");
+            av_log(NULL, AV_LOG_STDERR, (codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL)  ? "X" : ".");
+            av_log(NULL, AV_LOG_STDERR, (codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
+            av_log(NULL, AV_LOG_STDERR, (codec->capabilities & AV_CODEC_CAP_DR1)           ? "D" : ".");
 
-            printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
+            av_log(NULL, AV_LOG_STDERR, " %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
             if (strcmp(codec->name, desc->name))
-                printf(" (codec %s)", desc->name);
+                av_log(NULL, AV_LOG_STDERR, " (codec %s)", desc->name);
 
-            printf("\n");
+            av_log(NULL, AV_LOG_STDERR, "\n");
         }
     }
     av_free(codecs);
@@ -1662,10 +1701,10 @@ int show_bsfs(void *optctx, const char *opt, const char *arg)
     const AVBitStreamFilter *bsf = NULL;
     void *opaque = NULL;
 
-    printf("Bitstream filters:\n");
+    av_log(NULL, AV_LOG_STDERR, "Bitstream filters:\n");
     while ((bsf = av_bsf_iterate(&opaque)))
-        printf("%s\n", bsf->name);
-    printf("\n");
+        av_log(NULL, AV_LOG_STDERR, "%s\n", bsf->name);
+    av_log(NULL, AV_LOG_STDERR, "\n");
     return 0;
 }
 
@@ -1674,13 +1713,13 @@ int show_protocols(void *optctx, const char *opt, const char *arg)
     void *opaque = NULL;
     const char *name;
 
-    printf("Supported file protocols:\n"
+    av_log(NULL, AV_LOG_STDERR, "Supported file protocols:\n"
            "Input:\n");
     while ((name = avio_enum_protocols(&opaque, 0)))
-        printf("  %s\n", name);
-    printf("Output:\n");
+        av_log(NULL, AV_LOG_STDERR, "  %s\n", name);
+    av_log(NULL, AV_LOG_STDERR, "Output:\n");
     while ((name = avio_enum_protocols(&opaque, 1)))
-        printf("  %s\n", name);
+        av_log(NULL, AV_LOG_STDERR, "  %s\n", name);
     return 0;
 }
 
@@ -1693,7 +1732,7 @@ int show_filters(void *optctx, const char *opt, const char *arg)
     int i, j;
     const AVFilterPad *pad;
 
-    printf("Filters:\n"
+    av_log(NULL, AV_LOG_STDERR, "Filters:\n"
            "  T.. = Timeline support\n"
            "  .S. = Slice threading\n"
            "  ..C = Command support\n"
@@ -1719,14 +1758,14 @@ int show_filters(void *optctx, const char *opt, const char *arg)
                                   ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
         }
         *descr_cur = 0;
-        printf(" %c%c%c %-17s %-10s %s\n",
+        av_log(NULL, AV_LOG_STDERR, " %c%c%c %-17s %-10s %s\n",
                filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
                filter->flags & AVFILTER_FLAG_SLICE_THREADS    ? 'S' : '.',
                filter->process_command                        ? 'C' : '.',
                filter->name, descr, filter->description);
     }
 #else
-    printf("No filters available: libavfilter disabled\n");
+    av_log(NULL, AV_LOG_STDERR, "No filters available: libavfilter disabled\n");
 #endif
     return 0;
 }
@@ -1737,10 +1776,10 @@ int show_colors(void *optctx, const char *opt, const char *arg)
     const uint8_t *rgb;
     int i;
 
-    printf("%-32s #RRGGBB\n", "name");
+    av_log(NULL, AV_LOG_STDERR, "%-32s #RRGGBB\n", "name");
 
     for (i = 0; (name = av_get_known_color_name(i, &rgb)); i++)
-        printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
+        av_log(NULL, AV_LOG_STDERR, "%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
 
     return 0;
 }
@@ -1749,7 +1788,7 @@ int show_pix_fmts(void *optctx, const char *opt, const char *arg)
 {
     const AVPixFmtDescriptor *pix_desc = NULL;
 
-    printf("Pixel formats:\n"
+    av_log(NULL, AV_LOG_STDERR, "Pixel formats:\n"
            "I.... = Supported Input  format for conversion\n"
            ".O... = Supported Output format for conversion\n"
            "..H.. = Hardware accelerated format\n"
@@ -1765,7 +1804,7 @@ int show_pix_fmts(void *optctx, const char *opt, const char *arg)
 
     while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
         enum AVPixelFormat av_unused pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
-        printf("%c%c%c%c%c %-16s       %d            %2d\n",
+        av_log(NULL, AV_LOG_STDERR, "%c%c%c%c%c %-16s       %d            %2d\n",
                sws_isSupportedInput (pix_fmt)              ? 'I' : '.',
                sws_isSupportedOutput(pix_fmt)              ? 'O' : '.',
                pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL   ? 'H' : '.',
@@ -1784,24 +1823,24 @@ int show_layouts(void *optctx, const char *opt, const char *arg)
     uint64_t layout, j;
     const char *name, *descr;
 
-    printf("Individual channels:\n"
+    av_log(NULL, AV_LOG_STDERR, "Individual channels:\n"
            "NAME           DESCRIPTION\n");
     for (i = 0; i < 63; i++) {
         name = av_get_channel_name((uint64_t)1 << i);
         if (!name)
             continue;
         descr = av_get_channel_description((uint64_t)1 << i);
-        printf("%-14s %s\n", name, descr);
+        av_log(NULL, AV_LOG_STDERR, "%-14s %s\n", name, descr);
     }
-    printf("\nStandard channel layouts:\n"
+    av_log(NULL, AV_LOG_STDERR, "\nStandard channel layouts:\n"
            "NAME           DECOMPOSITION\n");
     for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
         if (name) {
-            printf("%-14s ", name);
+            av_log(NULL, AV_LOG_STDERR, "%-14s ", name);
             for (j = 1; j; j <<= 1)
                 if ((layout & j))
-                    printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
-            printf("\n");
+                    av_log(NULL, AV_LOG_STDERR, "%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
+            av_log(NULL, AV_LOG_STDERR, "\n");
         }
     }
     return 0;
@@ -1812,7 +1851,7 @@ int show_sample_fmts(void *optctx, const char *opt, const char *arg)
     int i;
     char fmt_str[128];
     for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
-        printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
+        av_log(NULL, AV_LOG_STDERR, "%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
     return 0;
 }
 
@@ -1860,10 +1899,10 @@ static void show_help_demuxer(const char *name)
         return;
     }
 
-    printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
+    av_log(NULL, AV_LOG_STDERR, "Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
 
     if (fmt->extensions)
-        printf("    Common extensions: %s.\n", fmt->extensions);
+        av_log(NULL, AV_LOG_STDERR, "    Common extensions: %s.\n", fmt->extensions);
 
     if (fmt->priv_class)
         show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
@@ -1879,23 +1918,23 @@ static void show_help_muxer(const char *name)
         return;
     }
 
-    printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
+    av_log(NULL, AV_LOG_STDERR, "Muxer %s [%s]:\n", fmt->name, fmt->long_name);
 
     if (fmt->extensions)
-        printf("    Common extensions: %s.\n", fmt->extensions);
+        av_log(NULL, AV_LOG_STDERR, "    Common extensions: %s.\n", fmt->extensions);
     if (fmt->mime_type)
-        printf("    Mime type: %s.\n", fmt->mime_type);
+        av_log(NULL, AV_LOG_STDERR, "    Mime type: %s.\n", fmt->mime_type);
     if (fmt->video_codec != AV_CODEC_ID_NONE &&
         (desc = avcodec_descriptor_get(fmt->video_codec))) {
-        printf("    Default video codec: %s.\n", desc->name);
+        av_log(NULL, AV_LOG_STDERR, "    Default video codec: %s.\n", desc->name);
     }
     if (fmt->audio_codec != AV_CODEC_ID_NONE &&
         (desc = avcodec_descriptor_get(fmt->audio_codec))) {
-        printf("    Default audio codec: %s.\n", desc->name);
+        av_log(NULL, AV_LOG_STDERR, "    Default audio codec: %s.\n", desc->name);
     }
     if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
         (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
-        printf("    Default subtitle codec: %s.\n", desc->name);
+        av_log(NULL, AV_LOG_STDERR, "    Default subtitle codec: %s.\n", desc->name);
     }
 
     if (fmt->priv_class)
@@ -1917,40 +1956,40 @@ static void show_help_filter(const char *name)
         return;
     }
 
-    printf("Filter %s\n", f->name);
+    av_log(NULL, AV_LOG_STDERR, "Filter %s\n", f->name);
     if (f->description)
-        printf("  %s\n", f->description);
+        av_log(NULL, AV_LOG_STDERR, "  %s\n", f->description);
 
     if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
-        printf("    slice threading supported\n");
+        av_log(NULL, AV_LOG_STDERR, "    slice threading supported\n");
 
-    printf("    Inputs:\n");
+    av_log(NULL, AV_LOG_STDERR, "    Inputs:\n");
     count = avfilter_pad_count(f->inputs);
     for (i = 0; i < count; i++) {
-        printf("       #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
+        av_log(NULL, AV_LOG_STDERR, "       #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
                media_type_string(avfilter_pad_get_type(f->inputs, i)));
     }
     if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
-        printf("        dynamic (depending on the options)\n");
+        av_log(NULL, AV_LOG_STDERR, "        dynamic (depending on the options)\n");
     else if (!count)
-        printf("        none (source filter)\n");
+        av_log(NULL, AV_LOG_STDERR, "        none (source filter)\n");
 
-    printf("    Outputs:\n");
+    av_log(NULL, AV_LOG_STDERR, "    Outputs:\n");
     count = avfilter_pad_count(f->outputs);
     for (i = 0; i < count; i++) {
-        printf("       #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
+        av_log(NULL, AV_LOG_STDERR, "       #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
                media_type_string(avfilter_pad_get_type(f->outputs, i)));
     }
     if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
-        printf("        dynamic (depending on the options)\n");
+        av_log(NULL, AV_LOG_STDERR, "        dynamic (depending on the options)\n");
     else if (!count)
-        printf("        none (sink filter)\n");
+        av_log(NULL, AV_LOG_STDERR, "        none (sink filter)\n");
 
     if (f->priv_class)
         show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
                                           AV_OPT_FLAG_AUDIO_PARAM);
     if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
-        printf("This filter has support for timeline through the 'enable' option.\n");
+        av_log(NULL, AV_LOG_STDERR, "This filter has support for timeline through the 'enable' option.\n");
 #else
     av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
            "can not to satisfy request\n");
@@ -1970,7 +2009,7 @@ static void show_help_bsf(const char *name)
         return;
     }
 
-    printf("Bit stream filter %s\n", bsf->name);
+    av_log(NULL, AV_LOG_STDERR, "Bit stream filter %s\n", bsf->name);
     PRINT_CODEC_SUPPORTED(bsf, codec_ids, enum AVCodecID, "codecs",
                           AV_CODEC_ID_NONE, GET_CODEC_NAME);
     if (bsf->priv_class)
@@ -1980,7 +2019,6 @@ static void show_help_bsf(const char *name)
 int show_help(void *optctx, const char *opt, const char *arg)
 {
     char *topic, *par;
-    av_log_set_callback(mobileffmpeg_log_callback_function);
 
     topic = av_strdup(arg ? arg : "");
     if (!topic)
@@ -1990,7 +2028,11 @@ int show_help(void *optctx, const char *opt, const char *arg)
         *par++ = 0;
 
     if (!*topic) {
-        show_help_default(topic, par);
+        if (program_name && !strcmp(program_name, "ffmpeg")) {
+            show_help_default_ffmpeg(topic, par);
+        } else {
+            show_help_default_ffprobe(topic, par);
+        }
     } else if (!strcmp(topic, "decoder")) {
         show_help_codec(par, 0);
     } else if (!strcmp(topic, "encoder")) {
@@ -2006,7 +2048,11 @@ int show_help(void *optctx, const char *opt, const char *arg)
     } else if (!strcmp(topic, "bsf")) {
         show_help_bsf(par);
     } else {
-        show_help_default(topic, par);
+        if (program_name && !strcmp(program_name, "ffmpeg")) {
+            show_help_default_ffmpeg(topic, par);
+        } else {
+            show_help_default_ffprobe(topic, par);
+        }
     }
 
     av_freep(&topic);
@@ -2038,7 +2084,7 @@ FILE *get_preset_file(char *filename, size_t filename_size,
         av_strlcpy(filename, preset_name, filename_size);
         f = fopen(filename, "r");
     } else {
-#ifdef _WIN32
+#if HAVE_GETMODULEHANDLE
         char datadir[MAX_PATH], *ls;
         base[2] = NULL;
 
@@ -2206,20 +2252,20 @@ static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
     if (!fmt || !fmt->priv_class  || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
         return AVERROR(EINVAL);
 
-    printf("Auto-detected sources for %s:\n", fmt->name);
+    av_log(NULL, AV_LOG_STDERR, "Auto-detected sources for %s:\n", fmt->name);
     if (!fmt->get_device_list) {
         ret = AVERROR(ENOSYS);
-        printf("Cannot list sources. Not implemented.\n");
+        av_log(NULL, AV_LOG_STDERR, "Cannot list sources. Not implemented.\n");
         goto fail;
     }
 
     if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
-        printf("Cannot list sources.\n");
+        av_log(NULL, AV_LOG_STDERR, "Cannot list sources.\n");
         goto fail;
     }
 
     for (i = 0; i < device_list->nb_devices; i++) {
-        printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
+        av_log(NULL, AV_LOG_STDERR, "%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
                device_list->devices[i]->device_name, device_list->devices[i]->device_description);
     }
 
@@ -2236,20 +2282,20 @@ static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
     if (!fmt || !fmt->priv_class  || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
         return AVERROR(EINVAL);
 
-    printf("Auto-detected sinks for %s:\n", fmt->name);
+    av_log(NULL, AV_LOG_STDERR, "Auto-detected sinks for %s:\n", fmt->name);
     if (!fmt->get_device_list) {
         ret = AVERROR(ENOSYS);
-        printf("Cannot list sinks. Not implemented.\n");
+        av_log(NULL, AV_LOG_STDERR, "Cannot list sinks. Not implemented.\n");
         goto fail;
     }
 
     if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
-        printf("Cannot list sinks.\n");
+        av_log(NULL, AV_LOG_STDERR, "Cannot list sinks.\n");
         goto fail;
     }
 
     for (i = 0; i < device_list->nb_devices; i++) {
-        printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
+        av_log(NULL, AV_LOG_STDERR, "%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
                device_list->devices[i]->device_name, device_list->devices[i]->device_description);
     }
 
@@ -2275,7 +2321,7 @@ static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionar
             }
         }
     } else
-        printf("\nDevice name is not provided.\n"
+        av_log(NULL, AV_LOG_STDERR, "\nDevice name is not provided.\n"
                 "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
     return 0;
 }

android/app/src/main/cpp/fftools_cmdutils.h

@@ -20,6 +20,17 @@
  */
 
 /*
+ * CHANGES 01.2020
+ * - ffprobe support changes
+ * - AV_LOG_STDERR introduced
+ *
+ * CHANGES 12.2019
+ * - Concurrent execution support
+ *
+ * CHANGES 03.2019
+ * --------------------------------------------------------
+ * - config.h include removed
+ *
  * CHANGES 08.2018
  * --------------------------------------------------------
  * - fftools_ prefix added to file name and include guards
@@ -35,7 +46,6 @@
 
 #include <stdint.h>
 
-#include "config.h"
 #include "libavcodec/avcodec.h"
 #include "libavfilter/avfilter.h"
 #include "libavformat/avformat.h"
@@ -45,22 +55,28 @@
 #undef main /* We don't want SDL to override our main() */
 #endif
 
+/**
+ * Defines logs printed to stderr by ffmpeg. They are not filtered and always redirected.
+ */
+#define AV_LOG_STDERR    -16
+
 /**
  * program name, defined by the program for show_version().
  */
-extern const char program_name[];
+extern __thread char *program_name;
 
 /**
  * program birth year, defined by the program for show_banner()
  */
-extern const int program_birth_year;
+extern __thread int program_birth_year;
 
-extern AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB];
-extern AVFormatContext *avformat_opts;
-extern AVDictionary *sws_dict;
-extern AVDictionary *swr_opts;
-extern AVDictionary *format_opts, *codec_opts, *resample_opts;
-extern int hide_banner;
+extern __thread AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB];
+extern __thread AVFormatContext *avformat_opts;
+extern __thread AVDictionary *sws_dict;
+extern __thread AVDictionary *swr_opts;
+extern __thread AVDictionary *format_opts, *codec_opts, *resample_opts;
+extern __thread int hide_banner;
+extern __thread int find_stream_info;
 
 /**
  * Register a program-specific cleanup routine.
@@ -110,7 +126,7 @@ int opt_default(void *optctx, const char *opt, const char *arg);
  */
 int opt_loglevel(void *optctx, const char *opt, const char *arg);
 
-int opt_report(const char *opt);
+int opt_report(void *optctx, const char *opt, const char *arg);
 
 int opt_max_alloc(void *optctx, const char *opt, const char *arg);
 
@@ -212,47 +228,6 @@ typedef struct OptionDef {
 void show_help_options(const OptionDef *options, const char *msg, int req_flags,
                        int rej_flags, int alt_flags);
 
-#if CONFIG_AVDEVICE
-#define CMDUTILS_COMMON_OPTIONS_AVDEVICE                                                                                \
-    { "sources"    , OPT_EXIT | HAS_ARG, { .func_arg = show_sources },                                                  \
-      "list sources of the input device", "device" },                                                                   \
-    { "sinks"      , OPT_EXIT | HAS_ARG, { .func_arg = show_sinks },                                                    \
-      "list sinks of the output device", "device" },                                                                    \
-
-#else
-#define CMDUTILS_COMMON_OPTIONS_AVDEVICE
-#endif
-
-#define CMDUTILS_COMMON_OPTIONS                                                                                         \
-    { "L",           OPT_EXIT,             { .func_arg = show_license },     "show license" },                          \
-    { "h",           OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },                    \
-    { "?",           OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },                    \
-    { "help",        OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },                    \
-    { "-help",       OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },                    \
-    { "version",     OPT_EXIT,             { .func_arg = show_version },     "show version" },                          \
-    { "buildconf",   OPT_EXIT,             { .func_arg = show_buildconf },   "show build configuration" },              \
-    { "formats",     OPT_EXIT,             { .func_arg = show_formats },     "show available formats" },                \
-    { "muxers",      OPT_EXIT,             { .func_arg = show_muxers },      "show available muxers" },                 \
-    { "demuxers",    OPT_EXIT,             { .func_arg = show_demuxers },    "show available demuxers" },               \
-    { "devices",     OPT_EXIT,             { .func_arg = show_devices },     "show available devices" },                \
-    { "codecs",      OPT_EXIT,             { .func_arg = show_codecs },      "show available codecs" },                 \
-    { "decoders",    OPT_EXIT,             { .func_arg = show_decoders },    "show available decoders" },               \
-    { "encoders",    OPT_EXIT,             { .func_arg = show_encoders },    "show available encoders" },               \
-    { "bsfs",        OPT_EXIT,             { .func_arg = show_bsfs },        "show available bit stream filters" },     \
-    { "protocols",   OPT_EXIT,             { .func_arg = show_protocols },   "show available protocols" },              \
-    { "filters",     OPT_EXIT,             { .func_arg = show_filters },     "show available filters" },                \
-    { "pix_fmts",    OPT_EXIT,             { .func_arg = show_pix_fmts },    "show available pixel formats" },          \
-    { "layouts",     OPT_EXIT,             { .func_arg = show_layouts },     "show standard channel layouts" },         \
-    { "sample_fmts", OPT_EXIT,             { .func_arg = show_sample_fmts }, "show available audio sample formats" },   \
-    { "colors",      OPT_EXIT,             { .func_arg = show_colors },      "show available color names" },            \
-    { "loglevel",    HAS_ARG,              { .func_arg = opt_loglevel },     "set logging level", "loglevel" },         \
-    { "v",           HAS_ARG,              { .func_arg = opt_loglevel },     "set logging level", "loglevel" },         \
-    { "report",      0,                    { (void*)opt_report },            "generate a report" },                     \
-    { "max_alloc",   HAS_ARG,              { .func_arg = opt_max_alloc },    "set maximum size of a single allocated block", "bytes" }, \
-    { "cpuflags",    HAS_ARG | OPT_EXPERT, { .func_arg = opt_cpuflags },     "force specific cpu flags", "flags" },     \
-    { "hide_banner", OPT_BOOL | OPT_EXPERT, {&hide_banner},     "do not show program banner", "hide_banner" },          \
-    CMDUTILS_COMMON_OPTIONS_AVDEVICE                                                                                    \
-
 /**
  * Show help for all options with given flags in class and all its
  * children.
@@ -260,10 +235,11 @@ void show_help_options(const OptionDef *options, const char *msg, int req_flags,
 void show_help_children(const AVClass *class, int flags);
 
 /**
- * Per-fftool specific help handler. Implemented in each
+ * Per-fftool specific help handlers. Implemented in each
  * fftool, called by show_help().
  */
-void show_help_default(const char *opt, const char *arg);
+void show_help_default_ffmpeg(const char *opt, const char *arg);
+void show_help_default_ffprobe(const char *opt, const char *arg);
 
 /**
  * Generic -h handler common to all fftools.

android/app/src/main/cpp/fftools_ffmpeg.c

@@ -24,6 +24,12 @@
  */
 
 /*
+ * CHANGES 01.2020
+ * - ffprobe support changes
+ *
+ * CHANGES 12.2019
+ * - Concurrent execution support
+ *
  * CHANGES 08.2018
  * --------------------------------------------------------
  * - fftools_ prefix added to file name and parent headers
@@ -35,10 +41,10 @@
  *
  * CHANGES 07.2018
  * --------------------------------------------------------
- * - main() function renamed as execute()
+ * - main() function renamed as ffmpeg_execute()
  * - exit_program() implemented with setjmp
  * - extern longjmp_value added to access exit code stored in exit_program()
- * - cleanup() method added
+ * - ffmpeg_var_cleanup() method added
  */
 
 #include "config.h"
@@ -126,9 +132,6 @@
 
 #include "libavutil/avassert.h"
 
-const char program_name[] = "ffmpeg";
-const int program_birth_year = 2000;
-
 static FILE *vstats_file;
 
 const char *const forced_keyframes_const_names[] = {
@@ -151,39 +154,85 @@ static BenchmarkTimeStamps get_benchmark_time_stamps(void);
 static int64_t getmaxrss(void);
 static int ifilter_has_all_input_formats(FilterGraph *fg);
 
-static int run_as_daemon  = 0;
-static int nb_frames_dup = 0;
-static unsigned dup_warning = 1000;
-static int nb_frames_drop = 0;
-static int64_t decode_error_stat[2];
+__thread int run_as_daemon  = 0;
+__thread int nb_frames_dup = 0;
+__thread unsigned dup_warning = 1000;
+__thread int nb_frames_drop = 0;
+__thread int64_t decode_error_stat[2];
 
-static int want_sdp = 1;
+__thread int want_sdp = 1;
 
-static BenchmarkTimeStamps current_time;
-AVIOContext *progress_avio = NULL;
+__thread BenchmarkTimeStamps current_time;
+__thread AVIOContext *progress_avio = NULL;
 
-static uint8_t *subtitle_out;
+__thread uint8_t *subtitle_out;
 
-InputStream **input_streams = NULL;
-int        nb_input_streams = 0;
-InputFile   **input_files   = NULL;
-int        nb_input_files   = 0;
+__thread InputStream **input_streams = NULL;
+__thread int        nb_input_streams = 0;
+__thread InputFile   **input_files   = NULL;
+__thread int        nb_input_files   = 0;
 
-OutputStream **output_streams = NULL;
-int         nb_output_streams = 0;
-OutputFile   **output_files   = NULL;
-int         nb_output_files   = 0;
+__thread OutputStream **output_streams = NULL;
+__thread int         nb_output_streams = 0;
+__thread OutputFile   **output_files   = NULL;
+__thread int         nb_output_files   = 0;
 
-FilterGraph **filtergraphs;
-int        nb_filtergraphs;
+__thread FilterGraph **filtergraphs;
+__thread int        nb_filtergraphs;
 
-static void (*report_callback)(int, float, float, int64_t, int, double, double) = NULL;
+void (*report_callback)(int, float, float, int64_t, int, double, double) = NULL;
+
+extern __thread int file_overwrite;
+extern __thread int no_file_overwrite;
+extern __thread int ignore_unknown_streams;
+extern __thread int copy_unknown_streams;
+extern int opt_map(void *optctx, const char *opt, const char *arg);
+extern int opt_map_channel(void *optctx, const char *opt, const char *arg);
+extern int opt_recording_timestamp(void *optctx, const char *opt, const char *arg);
+extern int opt_data_frames(void *optctx, const char *opt, const char *arg);
+extern int opt_progress(void *optctx, const char *opt, const char *arg);
+extern int opt_target(void *optctx, const char *opt, const char *arg);
+extern int opt_vsync(void *optctx, const char *opt, const char *arg);
+extern int opt_abort_on(void *optctx, const char *opt, const char *arg);
+extern int opt_qscale(void *optctx, const char *opt, const char *arg);
+extern int opt_profile(void *optctx, const char *opt, const char *arg);
+extern int opt_filter_complex(void *optctx, const char *opt, const char *arg);
+extern int opt_filter_complex_script(void *optctx, const char *opt, const char *arg);
+extern int opt_attach(void *optctx, const char *opt, const char *arg);
+extern int opt_video_frames(void *optctx, const char *opt, const char *arg);
+extern __thread int intra_only;
+extern int opt_video_codec(void *optctx, const char *opt, const char *arg);
+extern int opt_sameq(void *optctx, const char *opt, const char *arg);
+extern int opt_timecode(void *optctx, const char *opt, const char *arg);
+extern __thread int do_psnr;
+extern int opt_vstats_file(void *optctx, const char *opt, const char *arg);
+extern int opt_vstats(void *optctx, const char *opt, const char *arg);
+extern int opt_video_frames(void *optctx, const char *opt, const char *arg);
+extern int opt_old2new(void *optctx, const char *opt, const char *arg);
+extern int opt_streamid(void *optctx, const char *opt, const char *arg);
+extern int opt_bitrate(void *optctx, const char *opt, const char *arg);
+extern int show_hwaccels(void *optctx, const char *opt, const char *arg);
+extern int opt_video_filters(void *optctx, const char *opt, const char *arg);
+extern int opt_audio_frames(void *optctx, const char *opt, const char *arg);
+extern int opt_audio_qscale(void *optctx, const char *opt, const char *arg);
+extern int opt_audio_codec(void *optctx, const char *opt, const char *arg);
+extern int opt_channel_layout(void *optctx, const char *opt, const char *arg);
+extern int opt_preset(void *optctx, const char *opt, const char *arg);
+extern int opt_audio_filters(void *optctx, const char *opt, const char *arg);
+extern int opt_subtitle_codec(void *optctx, const char *opt, const char *arg);
+extern int opt_video_channel(void *optctx, const char *opt, const char *arg);
+extern int opt_video_standard(void *optctx, const char *opt, const char *arg);
+extern int opt_sdp_file(void *optctx, const char *opt, const char *arg);
+extern int opt_data_codec(void *optctx, const char *opt, const char *arg);
+extern int opt_init_hw_device(void *optctx, const char *opt, const char *arg);
+extern int opt_filter_hw_device(void *optctx, const char *opt, const char *arg);
+extern __thread int input_sync;
 
 #if HAVE_TERMIOS_H
 
 /* init terminal so that we can grab keys */
-static struct termios oldtty;
-static int restore_tty;
+__thread struct termios oldtty;
+__thread int restore_tty;
 #endif
 
 #if HAVE_THREADS
@@ -353,12 +402,12 @@ void term_exit(void)
     term_exit_sigsafe();
 }
 
-static volatile int received_sigterm = 0;
-static volatile int received_nb_signals = 0;
-static atomic_int transcode_init_done = ATOMIC_VAR_INIT(0);
-static volatile int ffmpeg_exited = 0;
-static int main_return_code = 0;
-extern int longjmp_value;
+volatile int received_sigterm = 0;
+volatile int received_nb_signals = 0;
+__thread atomic_int transcode_init_done = ATOMIC_VAR_INIT(0);
+__thread volatile int ffmpeg_exited = 0;
+__thread int main_ffmpeg_return_code = 0;
+extern __thread int longjmp_value;
 
 static void
 sigterm_handler(int sig)
@@ -496,12 +545,14 @@ static int read_key(void)
     return -1;
 }
 
-static int decode_interrupt_cb(void *ctx)
+int decode_interrupt_cb(void *ctx);
+
+int decode_interrupt_cb(void *ctx)
 {
     return received_nb_signals > atomic_load(&transcode_init_done);
 }
 
-const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
+__thread const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
 
 static void ffmpeg_cleanup(int ret)
 {
@@ -590,6 +641,7 @@ static void ffmpeg_cleanup(int ret)
         ost->audio_channels_mapped = 0;
 
         av_dict_free(&ost->sws_dict);
+        av_dict_free(&ost->swr_opts);
 
         avcodec_free_context(&ost->enc_ctx);
         avcodec_parameters_free(&ost->ref_par);
@@ -838,7 +890,7 @@ static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int u
     ret = av_interleaved_write_frame(s, pkt);
     if (ret < 0) {
         print_error("av_interleaved_write_frame()", ret);
-        main_return_code = 1;
+        main_ffmpeg_return_code = 1;
         close_all_output_streams(ost, MUXER_FINISHED | ENCODER_FINISHED, ENCODER_FINISHED);
     }
     av_packet_unref(pkt);
@@ -1102,6 +1154,7 @@ static void do_video_out(OutputFile *of,
 
     if (!ost->filters_script &&
         !ost->filters &&
+        (nb_filtergraphs == 0 || !filtergraphs[0]->graph_desc) &&
         next_picture &&
         ist &&
         lrintf(next_picture->pkt_duration * av_q2d(ist->st->time_base) / av_q2d(enc->time_base)) > 0) {
@@ -1219,6 +1272,8 @@ static void do_video_out(OutputFile *of,
   /* duplicates frame if needed */
   for (i = 0; i < nb_frames; i++) {
     AVFrame *in_picture;
+        int forced_keyframe = 0;
+        double pts_time;
     av_init_packet(&pkt);
     pkt.data = NULL;
     pkt.size = 0;
@@ -1233,17 +1288,9 @@ static void do_video_out(OutputFile *of,
 
     in_picture->pts = ost->sync_opts;
 
-#if 1
     if (!check_recording_time(ost))
-#else
-    if (ost->frame_number >= ost->max_frames)
-#endif
         return;
 
-    {
-        int forced_keyframe = 0;
-        double pts_time;
-
         if (enc->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
             ost->top_field_first >= 0)
             in_picture->top_field_first = !!ost->top_field_first;
@@ -1315,6 +1362,8 @@ static void do_video_out(OutputFile *of,
         ret = avcodec_send_frame(enc, in_picture);
         if (ret < 0)
             goto error;
+        // Make sure Closed Captions will not be duplicated
+        av_frame_remove_side_data(in_picture, AV_FRAME_DATA_A53_CC);
 
         while (1) {
             ret = avcodec_receive_packet(enc, &pkt);
@@ -1351,7 +1400,6 @@ static void do_video_out(OutputFile *of,
                 fprintf(ost->logfile, "%s", enc->stats_out);
             }
         }
-    }
     ost->sync_opts++;
     /*
      * For video, number of frames in == number of packets out.
@@ -1515,8 +1563,6 @@ static int reap_filters(int flush)
                     av_rescale_q(filtered_frame->pts, filter_tb, enc->time_base) -
                     av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
             }
-            //if (ost->source_index >= 0)
-            //    *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
 
             switch (av_buffersink_get_type(filter)) {
             case AVMEDIA_TYPE_VIDEO:
@@ -2109,12 +2155,13 @@ static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *p
     InputFile   *f = input_files [ist->file_index];
     int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
     int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->mux_timebase);
-    AVPacket opkt = { 0 };
-
-    av_init_packet(&opkt);
+    AVPacket opkt;
 
     // EOF: flush output bitstream filters.
     if (!pkt) {
+        av_init_packet(&opkt);
+        opkt.data = NULL;
+        opkt.size = 0;
         output_packet(of, &opkt, ost, 1);
         return;
     }
@@ -2153,10 +2200,11 @@ static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *p
     if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
         ost->sync_opts++;
 
+    if (av_packet_ref(&opkt, pkt) < 0)
+        exit_program(1);
+
     if (pkt->pts != AV_NOPTS_VALUE)
         opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->mux_timebase) - ost_tb_start_time;
-    else
-        opkt.pts = AV_NOPTS_VALUE;
 
     if (pkt->dts == AV_NOPTS_VALUE)
         opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->mux_timebase);
@@ -2175,18 +2223,6 @@ static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *p
 
     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->mux_timebase);
 
-    opkt.flags    = pkt->flags;
-
-    if (pkt->buf) {
-        opkt.buf = av_buffer_ref(pkt->buf);
-        if (!opkt.buf)
-            exit_program(1);
-    }
-    opkt.data = pkt->data;
-    opkt.size = pkt->size;
-
-    av_copy_packet_side_data(&opkt, pkt);
-
     output_packet(of, &opkt, ost, 0);
 }
 
@@ -2247,9 +2283,6 @@ static int ifilter_send_frame(InputFilter *ifilter, AVFrame *frame)
 
     /* determine if the parameters for this input changed */
     need_reinit = ifilter->format != frame->format;
-    if (!!ifilter->hw_frames_ctx != !!frame->hw_frames_ctx ||
-        (ifilter->hw_frames_ctx && ifilter->hw_frames_ctx->data != frame->hw_frames_ctx->data))
-        need_reinit = 1;
 
     switch (ifilter->ist->st->codecpar->codec_type) {
     case AVMEDIA_TYPE_AUDIO:
@@ -2263,6 +2296,13 @@ static int ifilter_send_frame(InputFilter *ifilter, AVFrame *frame)
         break;
     }
 
+    if (!ifilter->ist->reinit_filters && fg->graph)
+        need_reinit = 0;
+
+    if (!!ifilter->hw_frames_ctx != !!frame->hw_frames_ctx ||
+        (ifilter->hw_frames_ctx && ifilter->hw_frames_ctx->data != frame->hw_frames_ctx->data))
+        need_reinit = 1;
+
     if (need_reinit) {
         ret = ifilter_parameters_from_frame(ifilter, frame);
         if (ret < 0)
@@ -2427,14 +2467,12 @@ static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output,
     ist->samples_decoded += decoded_frame->nb_samples;
     ist->frames_decoded++;
 
-#if 1
     /* increment next_dts to use for the case where the input stream does not
        have timestamps or there are multiple frames in the packet */
     ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
                      avctx->sample_rate;
     ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
                      avctx->sample_rate;
-#endif
 
     if (decoded_frame->pts != AV_NOPTS_VALUE) {
         decoded_frame_tb   = ist->st->time_base;
@@ -2894,7 +2932,7 @@ static void print_sdp(void)
     av_sdp_create(avc, j, sdp, sizeof(sdp));
 
     if (!sdp_filename) {
-        printf("SDP:\n%s\n", sdp);
+        av_log(NULL, AV_LOG_STDERR, "SDP:\n%s\n", sdp);
         fflush(stdout);
     } else {
         if (avio_open2(&sdp_pb, sdp_filename, AVIO_FLAG_WRITE, &int_cb, NULL) < 0) {
@@ -3457,7 +3495,7 @@ static int init_output_stream_encode(OutputStream *ost)
                    "if you want a different framerate.\n",
                    ost->file_index, ost->index);
         }
-//      ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
+
         if (ost->enc->supported_framerates && !ost->force_fps) {
             int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
             ost->frame_rate = ost->enc->supported_framerates[idx];
@@ -3991,7 +4029,9 @@ static OutputStream *choose_output(void)
                        av_rescale_q(ost->st->cur_dts, ost->st->time_base,
                                     AV_TIME_BASE_Q);
         if (ost->st->cur_dts == AV_NOPTS_VALUE)
-            av_log(NULL, AV_LOG_DEBUG, "cur_dts is invalid (this is harmless if it occurs once at the start per stream)\n");
+            av_log(NULL, AV_LOG_DEBUG,
+                "cur_dts is invalid st:%d (%d) [init:%d i_done:%d finish:%d] (this is harmless if it occurs once at the start per stream)\n",
+                ost->st->index, ost->st->id, ost->initialized, ost->inputs_done, ost->finished);
 
         if (!ost->initialized && !ost->inputs_done)
             return ost;
@@ -4309,7 +4349,7 @@ static int seek_to_start(InputFile *ifile, AVFormatContext *is)
     int i, ret, has_audio = 0;
     int64_t duration = 0;
 
-    ret = av_seek_frame(is, -1, is->start_time, 0);
+    ret = avformat_seek_file(is, -1, INT64_MIN, is->start_time, is->start_time, 0);
     if (ret < 0)
         return ret;
 
@@ -4588,7 +4628,10 @@ static int process_input(int file_index)
                 pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
                 ifile->ts_offset -= delta;
                 av_log(NULL, AV_LOG_DEBUG,
-                       "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
+                       "timestamp discontinuity for stream #%d:%d "
+                       "(id=%d, type=%s): %"PRId64", new offset= %"PRId64"\n",
+                       ist->file_index, ist->st->index, ist->st->id,
+                       av_get_media_type_string(ist->dec_ctx->codec_type),
                        delta, ifile->ts_offset);
                 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
                 if (pkt.pts != AV_NOPTS_VALUE)
@@ -4951,8 +4994,8 @@ static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
 {
 }
 
-void cleanup() {
-    main_return_code = 0;
+void ffmpeg_var_cleanup() {
+    main_ffmpeg_return_code = 0;
     longjmp_value = 0;
     received_sigterm = 0;
     received_nb_signals = 0;
@@ -4991,15 +5034,449 @@ void cancel_operation()
     sigterm_handler(SIGINT);
 }
 
-int execute(int argc, char **argv)
+__thread OptionDef *ffmpeg_options = NULL;
+
+int ffmpeg_execute(int argc, char **argv)
 {
+    char _program_name[] = "ffmpeg";
+    program_name = (char*)&_program_name;
+    program_birth_year = 2000;
+
+    #define OFFSET(x) offsetof(OptionsContext, x)
+    OptionDef options[] = {
+
+        /* main options */
+        { "L",           OPT_EXIT,             { .func_arg = show_license },     "show license" },
+        { "h",           OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },
+        { "?",           OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },
+        { "help",        OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },
+        { "-help",       OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },
+        { "version",     OPT_EXIT,             { .func_arg = show_version },     "show version" },
+        { "buildconf",   OPT_EXIT,             { .func_arg = show_buildconf },   "show build configuration" },
+        { "formats",     OPT_EXIT,             { .func_arg = show_formats },     "show available formats" },
+        { "muxers",      OPT_EXIT,             { .func_arg = show_muxers },      "show available muxers" },
+        { "demuxers",    OPT_EXIT,             { .func_arg = show_demuxers },    "show available demuxers" },
+        { "devices",     OPT_EXIT,             { .func_arg = show_devices },     "show available devices" },
+        { "codecs",      OPT_EXIT,             { .func_arg = show_codecs },      "show available codecs" },
+        { "decoders",    OPT_EXIT,             { .func_arg = show_decoders },    "show available decoders" },
+        { "encoders",    OPT_EXIT,             { .func_arg = show_encoders },    "show available encoders" },
+        { "bsfs",        OPT_EXIT,             { .func_arg = show_bsfs },        "show available bit stream filters" },
+        { "protocols",   OPT_EXIT,             { .func_arg = show_protocols },   "show available protocols" },
+        { "filters",     OPT_EXIT,             { .func_arg = show_filters },     "show available filters" },
+        { "pix_fmts",    OPT_EXIT,             { .func_arg = show_pix_fmts },    "show available pixel formats" },
+        { "layouts",     OPT_EXIT,             { .func_arg = show_layouts },     "show standard channel layouts" },
+        { "sample_fmts", OPT_EXIT,             { .func_arg = show_sample_fmts }, "show available audio sample formats" },
+        { "colors",      OPT_EXIT,             { .func_arg = show_colors },      "show available color names" },
+        { "loglevel",    HAS_ARG,              { .func_arg = opt_loglevel },     "set logging level", "loglevel" },
+        { "v",           HAS_ARG,              { .func_arg = opt_loglevel },     "set logging level", "loglevel" },
+        { "report",      0,                    { .func_arg = opt_report },       "generate a report" },
+        { "max_alloc",   HAS_ARG,              { .func_arg = opt_max_alloc },    "set maximum size of a single allocated block", "bytes" },
+        { "cpuflags",    HAS_ARG | OPT_EXPERT, { .func_arg = opt_cpuflags },     "force specific cpu flags", "flags" },
+        { "hide_banner", OPT_BOOL | OPT_EXPERT, {&hide_banner},     "do not show program banner", "hide_banner" },
+
+        #if CONFIG_AVDEVICE
+            { "sources"    , OPT_EXIT | HAS_ARG, { .func_arg = show_sources },
+              "list sources of the input device", "device" },
+            { "sinks"      , OPT_EXIT | HAS_ARG, { .func_arg = show_sinks },
+              "list sinks of the output device", "device" },
+        #endif
+
+        { "f",              HAS_ARG | OPT_STRING | OPT_OFFSET |
+                            OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(format) },
+            "force format", "fmt" },
+        { "y",              OPT_BOOL,                                    {              &file_overwrite },
+            "overwrite output files" },
+        { "n",              OPT_BOOL,                                    {              &no_file_overwrite },
+            "never overwrite output files" },
+        { "ignore_unknown", OPT_BOOL,                                    {              &ignore_unknown_streams },
+            "Ignore unknown stream types" },
+        { "copy_unknown",   OPT_BOOL | OPT_EXPERT,                       {              &copy_unknown_streams },
+            "Copy unknown stream types" },
+        { "c",              HAS_ARG | OPT_STRING | OPT_SPEC |
+                            OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
+            "codec name", "codec" },
+        { "codec",          HAS_ARG | OPT_STRING | OPT_SPEC |
+                            OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
+            "codec name", "codec" },
+        { "pre",            HAS_ARG | OPT_STRING | OPT_SPEC |
+                            OPT_OUTPUT,                                  { .off       = OFFSET(presets) },
+            "preset name", "preset" },
+        { "map",            HAS_ARG | OPT_EXPERT | OPT_PERFILE |
+                            OPT_OUTPUT,                                  { .func_arg = opt_map },
+            "set input stream mapping",
+            "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
+        { "map_channel",    HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
+            "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
+        { "map_metadata",   HAS_ARG | OPT_STRING | OPT_SPEC |
+                            OPT_OUTPUT,                                  { .off       = OFFSET(metadata_map) },
+            "set metadata information of outfile from infile",
+            "outfile[,metadata]:infile[,metadata]" },
+        { "map_chapters",   HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
+                            OPT_OUTPUT,                                  { .off = OFFSET(chapters_input_file) },
+            "set chapters mapping", "input_file_index" },
+        { "t",              HAS_ARG | OPT_TIME | OPT_OFFSET |
+                            OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(recording_time) },
+            "record or transcode \"duration\" seconds of audio/video",
+            "duration" },
+        { "to",             HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,  { .off = OFFSET(stop_time) },
+            "record or transcode stop time", "time_stop" },
+        { "fs",             HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
+            "set the limit file size in bytes", "limit_size" },
+        { "ss",             HAS_ARG | OPT_TIME | OPT_OFFSET |
+                            OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time) },
+            "set the start time offset", "time_off" },
+        { "sseof",          HAS_ARG | OPT_TIME | OPT_OFFSET |
+                            OPT_INPUT,                                   { .off = OFFSET(start_time_eof) },
+            "set the start time offset relative to EOF", "time_off" },
+        { "seek_timestamp", HAS_ARG | OPT_INT | OPT_OFFSET |
+                            OPT_INPUT,                                   { .off = OFFSET(seek_timestamp) },
+            "enable/disable seeking by timestamp with -ss" },
+        { "accurate_seek",  OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
+                            OPT_INPUT,                                   { .off = OFFSET(accurate_seek) },
+            "enable/disable accurate seeking with -ss" },
+        { "itsoffset",      HAS_ARG | OPT_TIME | OPT_OFFSET |
+                            OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(input_ts_offset) },
+            "set the input ts offset", "time_off" },
+        { "itsscale",       HAS_ARG | OPT_DOUBLE | OPT_SPEC |
+                            OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(ts_scale) },
+            "set the input ts scale", "scale" },
+        { "timestamp",      HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_recording_timestamp },
+            "set the recording timestamp ('now' to set the current time)", "time" },
+        { "metadata",       HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
+            "add metadata", "string=string" },
+        { "program",        HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(program) },
+            "add program with specified streams", "title=string:st=number..." },
+        { "dframes",        HAS_ARG | OPT_PERFILE | OPT_EXPERT |
+                            OPT_OUTPUT,                                  { .func_arg = opt_data_frames },
+            "set the number of data frames to output", "number" },
+        { "benchmark",      OPT_BOOL | OPT_EXPERT,                       { &do_benchmark },
+            "add timings for benchmarking" },
+        { "benchmark_all",  OPT_BOOL | OPT_EXPERT,                       { &do_benchmark_all },
+          "add timings for each task" },
+        { "progress",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_progress },
+          "write program-readable progress information", "url" },
+        { "stdin",          OPT_BOOL | OPT_EXPERT,                       { &stdin_interaction },
+          "enable or disable interaction on standard input" },
+        { "timelimit",      HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_timelimit },
+            "set max runtime in seconds in CPU user time", "limit" },
+        { "dump",           OPT_BOOL | OPT_EXPERT,                       { &do_pkt_dump },
+            "dump each input packet" },
+        { "hex",            OPT_BOOL | OPT_EXPERT,                       { &do_hex_dump },
+            "when dumping packets, also dump the payload" },
+        { "re",             OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
+                            OPT_INPUT,                                   { .off = OFFSET(rate_emu) },
+            "read input at native frame rate", "" },
+        { "target",         HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_target },
+            "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\" or \"dv50\" "
+            "with optional prefixes \"pal-\", \"ntsc-\" or \"film-\")", "type" },
+        { "vsync",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_vsync },
+            "video sync method", "" },
+        { "frame_drop_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,      { &frame_drop_threshold },
+            "frame drop threshold", "" },
+        { "async",          HAS_ARG | OPT_INT | OPT_EXPERT,              { &audio_sync_method },
+            "audio sync method", "" },
+        { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,          { &audio_drift_threshold },
+            "audio drift threshold", "threshold" },
+        { "copyts",         OPT_BOOL | OPT_EXPERT,                       { &copy_ts },
+            "copy timestamps" },
+        { "start_at_zero",  OPT_BOOL | OPT_EXPERT,                       { &start_at_zero },
+            "shift input timestamps to start at 0 when using copyts" },
+        { "copytb",         HAS_ARG | OPT_INT | OPT_EXPERT,              { &copy_tb },
+            "copy input stream time base when stream copying", "mode" },
+        { "shortest",       OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
+                            OPT_OUTPUT,                                  { .off = OFFSET(shortest) },
+            "finish encoding within shortest input" },
+        { "bitexact",       OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
+                            OPT_OUTPUT | OPT_INPUT,                      { .off = OFFSET(bitexact) },
+            "bitexact mode" },
+        { "apad",           OPT_STRING | HAS_ARG | OPT_SPEC |
+                            OPT_OUTPUT,                                  { .off = OFFSET(apad) },
+            "audio pad", "" },
+        { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_delta_threshold },
+            "timestamp discontinuity delta threshold", "threshold" },
+        { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_error_threshold },
+            "timestamp error delta threshold", "threshold" },
+        { "xerror",         OPT_BOOL | OPT_EXPERT,                       { &exit_on_error },
+            "exit on error", "error" },
+        { "abort_on",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_abort_on },
+            "abort on the specified condition flags", "flags" },
+        { "copyinkf",       OPT_BOOL | OPT_EXPERT | OPT_SPEC |
+                            OPT_OUTPUT,                                  { .off = OFFSET(copy_initial_nonkeyframes) },
+            "copy initial non-keyframes" },
+        { "copypriorss",    OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT,   { .off = OFFSET(copy_prior_start) },
+            "copy or discard frames before start time" },
+        { "frames",         OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
+            "set the number of frames to output", "number" },
+        { "tag",            OPT_STRING | HAS_ARG | OPT_SPEC |
+                            OPT_EXPERT | OPT_OUTPUT | OPT_INPUT,         { .off = OFFSET(codec_tags) },
+            "force codec tag/fourcc", "fourcc/tag" },
+        { "q",              HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
+                            OPT_SPEC | OPT_OUTPUT,                       { .off = OFFSET(qscale) },
+            "use fixed quality scale (VBR)", "q" },
+        { "qscale",         HAS_ARG | OPT_EXPERT | OPT_PERFILE |
+                            OPT_OUTPUT,                                  { .func_arg = opt_qscale },
+            "use fixed quality scale (VBR)", "q" },
+        { "profile",        HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
+            "set profile", "profile" },
+        { "filter",         HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
+            "set stream filtergraph", "filter_graph" },
+        { "filter_threads",  HAS_ARG | OPT_INT,                          { &filter_nbthreads },
+            "number of non-complex filter threads" },
+        { "filter_script",  HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
+            "read stream filtergraph description from a file", "filename" },
+        { "reinit_filter",  HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT,    { .off = OFFSET(reinit_filters) },
+            "reinit filtergraph on input parameter changes", "" },
+        { "filter_complex", HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
+            "create a complex filtergraph", "graph_description" },
+        { "filter_complex_threads", HAS_ARG | OPT_INT,                   { &filter_complex_nbthreads },
+            "number of threads for -filter_complex" },
+        { "lavfi",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
+            "create a complex filtergraph", "graph_description" },
+        { "filter_complex_script", HAS_ARG | OPT_EXPERT,                 { .func_arg = opt_filter_complex_script },
+            "read complex filtergraph description from a file", "filename" },
+        { "stats",          OPT_BOOL,                                    { &print_stats },
+            "print progress report during encoding", },
+        { "attach",         HAS_ARG | OPT_PERFILE | OPT_EXPERT |
+                            OPT_OUTPUT,                                  { .func_arg = opt_attach },
+            "add an attachment to the output file", "filename" },
+        { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
+                             OPT_EXPERT | OPT_INPUT,                     { .off = OFFSET(dump_attachment) },
+            "extract an attachment into a file", "filename" },
+        { "stream_loop", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_INPUT |
+                            OPT_OFFSET,                                  { .off = OFFSET(loop) }, "set number of times input stream shall be looped", "loop count" },
+        { "debug_ts",       OPT_BOOL | OPT_EXPERT,                       { &debug_ts },
+            "print timestamp debugging info" },
+        { "max_error_rate",  HAS_ARG | OPT_FLOAT,                        { &max_error_rate },
+            "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success.", "maximum error rate" },
+        { "discard",        OPT_STRING | HAS_ARG | OPT_SPEC |
+                            OPT_INPUT,                                   { .off = OFFSET(discard) },
+            "discard", "" },
+        { "disposition",    OPT_STRING | HAS_ARG | OPT_SPEC |
+                            OPT_OUTPUT,                                  { .off = OFFSET(disposition) },
+            "disposition", "" },
+        { "thread_queue_size", HAS_ARG | OPT_INT | OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
+                                                                         { .off = OFFSET(thread_queue_size) },
+            "set the maximum number of queued packets from the demuxer" },
+        { "find_stream_info", OPT_BOOL | OPT_PERFILE | OPT_INPUT | OPT_EXPERT, { &find_stream_info },
+            "read and decode the streams to fill missing information with heuristics" },
+
+        /* video options */
+        { "vframes",      OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_frames },
+            "set the number of video frames to output", "number" },
+        { "r",            OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
+                          OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_rates) },
+            "set frame rate (Hz value, fraction or abbreviation)", "rate" },
+        { "s",            OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
+                          OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_sizes) },
+            "set frame size (WxH or abbreviation)", "size" },
+        { "aspect",       OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
+                          OPT_OUTPUT,                                                { .off = OFFSET(frame_aspect_ratios) },
+            "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
+        { "pix_fmt",      OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
+                          OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_pix_fmts) },
+            "set pixel format", "format" },
+        { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG,                      { &frame_bits_per_raw_sample },
+            "set the number of bits per raw sample", "number" },
+        { "intra",        OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &intra_only },
+            "deprecated use -g 1" },
+        { "vn",           OPT_VIDEO | OPT_BOOL  | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
+            "disable video" },
+        { "rc_override",  OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
+                          OPT_OUTPUT,                                                { .off = OFFSET(rc_overrides) },
+            "rate control override for specific intervals", "override" },
+        { "vcodec",       OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_INPUT |
+                          OPT_OUTPUT,                                                { .func_arg = opt_video_codec },
+            "force video codec ('copy' to copy stream)", "codec" },
+        { "sameq",        OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
+            "Removed" },
+        { "same_quant",   OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
+            "Removed" },
+        { "timecode",     OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_timecode },
+            "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
+        { "pass",         OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT,     { .off = OFFSET(pass) },
+            "select the pass number (1 to 3)", "n" },
+        { "passlogfile",  OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
+                          OPT_OUTPUT,                                                { .off = OFFSET(passlogfiles) },
+            "select two pass log file name prefix", "prefix" },
+        { "deinterlace",  OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_deinterlace },
+            "this option is deprecated, use the yadif filter instead" },
+        { "psnr",         OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_psnr },
+            "calculate PSNR of compressed frames" },
+        { "vstats",       OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_vstats },
+            "dump video coding statistics to file" },
+        { "vstats_file",  OPT_VIDEO | HAS_ARG | OPT_EXPERT ,                         { .func_arg = opt_vstats_file },
+            "dump video coding statistics to file", "file" },
+        { "vstats_version",  OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT ,            { &vstats_version },
+            "Version of the vstats format to use."},
+        { "vf",           OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_filters },
+            "set video filters", "filter_graph" },
+        { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
+                          OPT_OUTPUT,                                                { .off = OFFSET(intra_matrices) },
+            "specify intra matrix coeffs", "matrix" },
+        { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
+                          OPT_OUTPUT,                                                { .off = OFFSET(inter_matrices) },
+            "specify inter matrix coeffs", "matrix" },
+        { "chroma_intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
+                          OPT_OUTPUT,                                                { .off = OFFSET(chroma_intra_matrices) },
+            "specify intra matrix coeffs", "matrix" },
+        { "top",          OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_INT| OPT_SPEC |
+                          OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(top_field_first) },
+            "top=1/bottom=0/auto=-1 field first", "" },
+        { "vtag",         OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_PERFILE |
+                          OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_old2new },
+            "force video tag/fourcc", "fourcc/tag" },
+        { "qphist",       OPT_VIDEO | OPT_BOOL | OPT_EXPERT ,                        { &qp_hist },
+            "show QP histogram" },
+        { "force_fps",    OPT_VIDEO | OPT_BOOL | OPT_EXPERT  | OPT_SPEC |
+                          OPT_OUTPUT,                                                { .off = OFFSET(force_fps) },
+            "force the selected framerate, disable the best supported framerate selection" },
+        { "streamid",     OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
+                          OPT_OUTPUT,                                                { .func_arg = opt_streamid },
+            "set the value of an outfile streamid", "streamIndex:value" },
+        { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
+                              OPT_SPEC | OPT_OUTPUT,                                 { .off = OFFSET(forced_key_frames) },
+            "force key frames at specified timestamps", "timestamps" },
+        { "ab",           OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
+            "audio bitrate (please use -b:a)", "bitrate" },
+        { "b",            OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
+            "video bitrate (please use -b:v)", "bitrate" },
+        { "hwaccel",          OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
+                              OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccels) },
+            "use HW accelerated decoding", "hwaccel name" },
+        { "hwaccel_device",   OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
+                              OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccel_devices) },
+            "select a device for HW acceleration", "devicename" },
+        { "hwaccel_output_format", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
+                              OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccel_output_formats) },
+            "select output format used with HW accelerated decoding", "format" },
+    #if CONFIG_VIDEOTOOLBOX
+        { "videotoolbox_pixfmt", HAS_ARG | OPT_STRING | OPT_EXPERT, { &videotoolbox_pixfmt}, "" },
+    #endif
+        { "hwaccels",         OPT_EXIT,                                              { .func_arg = show_hwaccels },
+            "show available HW acceleration methods" },
+        { "autorotate",       HAS_ARG | OPT_BOOL | OPT_SPEC |
+                              OPT_EXPERT | OPT_INPUT,                                { .off = OFFSET(autorotate) },
+            "automatically insert correct rotate filters" },
+
+        /* audio options */
+        { "aframes",        OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_frames },
+            "set the number of audio frames to output", "number" },
+        { "aq",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_qscale },
+            "set audio quality (codec-specific)", "quality", },
+        { "ar",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
+                            OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_sample_rate) },
+            "set audio sampling rate (in Hz)", "rate" },
+        { "ac",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
+                            OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_channels) },
+            "set number of audio channels", "channels" },
+        { "an",             OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
+            "disable audio" },
+        { "acodec",         OPT_AUDIO | HAS_ARG  | OPT_PERFILE |
+                            OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_audio_codec },
+            "force audio codec ('copy' to copy stream)", "codec" },
+        { "atag",           OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
+                            OPT_OUTPUT,                                                { .func_arg = opt_old2new },
+            "force audio tag/fourcc", "fourcc/tag" },
+        { "vol",            OPT_AUDIO | HAS_ARG  | OPT_INT,                            { &audio_volume },
+            "change audio volume (256=normal)" , "volume" },
+        { "sample_fmt",     OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_SPEC |
+                            OPT_STRING | OPT_INPUT | OPT_OUTPUT,                       { .off = OFFSET(sample_fmts) },
+            "set sample format", "format" },
+        { "channel_layout", OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
+                            OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_channel_layout },
+            "set channel layout", "layout" },
+        { "af",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_filters },
+            "set audio filters", "filter_graph" },
+        { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
+          "set the maximum number of channels to try to guess the channel layout" },
+
+        /* subtitle options */
+        { "sn",     OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
+            "disable subtitle" },
+        { "scodec", OPT_SUBTITLE | HAS_ARG  | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
+            "force subtitle codec ('copy' to copy stream)", "codec" },
+        { "stag",   OPT_SUBTITLE | HAS_ARG  | OPT_EXPERT  | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
+            , "force subtitle tag/fourcc", "fourcc/tag" },
+        { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
+            "fix subtitles duration" },
+        { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
+            "set canvas size (WxH or abbreviation)", "size" },
+
+        /* grab options */
+        { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
+            "deprecated, use -channel", "channel" },
+        { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
+            "deprecated, use -standard", "standard" },
+        { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
+
+        /* muxer options */
+        { "muxdelay",   OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
+            "set the maximum demux-decode delay", "seconds" },
+        { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
+            "set the initial demux-decode delay", "seconds" },
+        { "sdp_file", HAS_ARG | OPT_EXPERT | OPT_OUTPUT, { .func_arg = opt_sdp_file },
+            "specify a file in which to print sdp information", "file" },
+
+        { "time_base", HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(time_bases) },
+            "set the desired time base hint for output stream (1:24, 1:48000 or 0.04166, 2.0833e-5)", "ratio" },
+        { "enc_time_base", HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(enc_time_bases) },
+            "set the desired time base for the encoder (1:24, 1:48000 or 0.04166, 2.0833e-5). "
+            "two special values are defined - "
+            "0 = use frame rate (video) or sample rate (audio),"
+            "-1 = match source time base", "ratio" },
+
+        { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
+            "A comma-separated list of bitstream filters", "bitstream_filters" },
+        { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
+            "deprecated", "audio bitstream_filters" },
+        { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
+            "deprecated", "video bitstream_filters" },
+
+        { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
+            "set the audio options to the indicated preset", "preset" },
+        { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
+            "set the video options to the indicated preset", "preset" },
+        { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
+            "set the subtitle options to the indicated preset", "preset" },
+        { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,                { .func_arg = opt_preset },
+            "set options from indicated preset file", "filename" },
+
+        { "max_muxing_queue_size", HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(max_muxing_queue_size) },
+            "maximum number of packets that can be buffered while waiting for all streams to initialize", "packets" },
+
+        /* data codec support */
+        { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
+            "force data codec ('copy' to copy stream)", "codec" },
+        { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },
+            "disable data" },
+
+    #if CONFIG_VAAPI
+        { "vaapi_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_vaapi_device },
+            "set VAAPI hardware device (DRM path or X11 display name)", "device" },
+    #endif
+
+    #if CONFIG_QSV
+        { "qsv_device", HAS_ARG | OPT_STRING | OPT_EXPERT, { &qsv_device },
+            "set QSV hardware device (DirectX adapter index, DRM path or X11 display name)", "device"},
+    #endif
+
+        { "init_hw_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_init_hw_device },
+            "initialise hardware device", "args" },
+        { "filter_hw_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_hw_device },
+            "set hardware device used when filtering", "device" },
+
+        { NULL, },
+    };
+
+    ffmpeg_options = options;
+
     int i, ret;
     BenchmarkTimeStamps ti;
 
     int savedCode = setjmp(ex_buf__);
     if (savedCode == 0) {
 
-        cleanup();
+        ffmpeg_var_cleanup();
 
         init_dynload();
 
@@ -5041,11 +5518,6 @@ int execute(int argc, char **argv)
             exit_program(1);
         }
 
-    //     if (nb_input_files == 0) {
-    //         av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
-    //         exit_program(1);
-    //     }
-
         for (i = 0; i < nb_output_files; i++) {
             if (strcmp(output_files[i]->ctx->oformat->name, "rtp"))
                 want_sdp = 0;
@@ -5069,11 +5541,11 @@ int execute(int argc, char **argv)
         if ((decode_error_stat[0] + decode_error_stat[1]) * max_error_rate < decode_error_stat[1])
             exit_program(69);
 
-        exit_program(received_nb_signals ? 255 : main_return_code);
+        exit_program(received_nb_signals ? 255 : main_ffmpeg_return_code);
 
     } else {
-        main_return_code = longjmp_value;
+        main_ffmpeg_return_code = longjmp_value;
     }
 
-    return main_return_code;
+    return main_ffmpeg_return_code;
 }

android/app/src/main/cpp/fftools_ffmpeg.h

@@ -17,6 +17,16 @@
  */
 
 /*
+ * CHANGES 01.2020
+ * - ffprobe support changes
+ *
+ * CHANGES 12.2019
+ * - Concurrent execution support
+ *
+ * CHANGES 03.2019
+ * --------------------------------------------------------
+ * - config.h include removed
+ *
  * CHANGES 08.2018
  * --------------------------------------------------------
  * - fftools_ prefix added to file name and include guards
@@ -31,8 +41,6 @@
 #ifndef FFTOOLS_FFMPEG_H
 #define FFTOOLS_FFMPEG_H
 
-#include "config.h"
-
 #include <stdint.h>
 #include <stdio.h>
 #include <signal.h>
@@ -84,7 +92,7 @@ typedef struct HWAccel {
 } HWAccel;
 
 typedef struct HWDevice {
-    char *name;
+    const char *name;
     enum AVHWDeviceType type;
     AVBufferRef *device_ref;
 } HWDevice;
@@ -576,63 +584,61 @@ typedef struct OutputFile {
     int header_written;
 } OutputFile;
 
-extern InputStream **input_streams;
-extern int        nb_input_streams;
-extern InputFile   **input_files;
-extern int        nb_input_files;
+extern __thread InputStream **input_streams;
+extern __thread int        nb_input_streams;
+extern __thread InputFile   **input_files;
+extern __thread int        nb_input_files;
 
-extern OutputStream **output_streams;
-extern int         nb_output_streams;
-extern OutputFile   **output_files;
-extern int         nb_output_files;
+extern __thread OutputStream **output_streams;
+extern __thread int         nb_output_streams;
+extern __thread OutputFile   **output_files;
+extern __thread int         nb_output_files;
 
-extern FilterGraph **filtergraphs;
-extern int        nb_filtergraphs;
+extern __thread FilterGraph **filtergraphs;
+extern __thread int        nb_filtergraphs;
 
-extern char *vstats_filename;
-extern char *sdp_filename;
+extern __thread char *vstats_filename;
+extern __thread char *sdp_filename;
 
-extern float audio_drift_threshold;
-extern float dts_delta_threshold;
-extern float dts_error_threshold;
+extern __thread float audio_drift_threshold;
+extern __thread float dts_delta_threshold;
+extern __thread float dts_error_threshold;
 
-extern int audio_volume;
-extern int audio_sync_method;
-extern int video_sync_method;
-extern float frame_drop_threshold;
-extern int do_benchmark;
-extern int do_benchmark_all;
-extern int do_deinterlace;
-extern int do_hex_dump;
-extern int do_pkt_dump;
-extern int copy_ts;
-extern int start_at_zero;
-extern int copy_tb;
-extern int debug_ts;
-extern int exit_on_error;
-extern int abort_on_flags;
-extern int print_stats;
-extern int qp_hist;
-extern int stdin_interaction;
-extern int frame_bits_per_raw_sample;
-extern AVIOContext *progress_avio;
-extern float max_error_rate;
-extern char *videotoolbox_pixfmt;
+extern __thread int audio_volume;
+extern __thread int audio_sync_method;
+extern __thread int video_sync_method;
+extern __thread float frame_drop_threshold;
+extern __thread int do_benchmark;
+extern __thread int do_benchmark_all;
+extern __thread int do_deinterlace;
+extern __thread int do_hex_dump;
+extern __thread int do_pkt_dump;
+extern __thread int copy_ts;
+extern __thread int start_at_zero;
+extern __thread int copy_tb;
+extern __thread int debug_ts;
+extern __thread int exit_on_error;
+extern __thread int abort_on_flags;
+extern __thread int print_stats;
+extern __thread int qp_hist;
+extern __thread int stdin_interaction;
+extern __thread int frame_bits_per_raw_sample;
+extern __thread AVIOContext *progress_avio;
+extern __thread float max_error_rate;
+extern __thread char *videotoolbox_pixfmt;
 
-extern int filter_nbthreads;
-extern int filter_complex_nbthreads;
-extern int vstats_version;
+extern __thread int filter_nbthreads;
+extern __thread int filter_complex_nbthreads;
+extern __thread int vstats_version;
 
-extern const AVIOInterruptCB int_cb;
+extern __thread const AVIOInterruptCB int_cb;
 
-extern const OptionDef options[];
 extern const HWAccel hwaccels[];
-extern AVBufferRef *hw_device_ctx;
+extern __thread AVBufferRef *hw_device_ctx;
 #if CONFIG_QSV
-extern char *qsv_device;
+extern __thread char *qsv_device;
 #endif
-extern HWDevice *filter_hw_device;
-
+extern __thread HWDevice *filter_hw_device;
 
 void term_init(void);
 void term_exit(void);
@@ -681,4 +687,75 @@ void set_report_callback(void (*callback)(int, float, float, int64_t, int, doubl
 
 void cancel_operation();
 
+int opt_map(void *optctx, const char *opt, const char *arg);
+int opt_map_channel(void *optctx, const char *opt, const char *arg);
+int opt_recording_timestamp(void *optctx, const char *opt, const char *arg);
+int opt_data_frames(void *optctx, const char *opt, const char *arg);
+int opt_progress(void *optctx, const char *opt, const char *arg);
+int opt_target(void *optctx, const char *opt, const char *arg);
+int opt_vsync(void *optctx, const char *opt, const char *arg);
+int opt_abort_on(void *optctx, const char *opt, const char *arg);
+int opt_qscale(void *optctx, const char *opt, const char *arg);
+int opt_profile(void *optctx, const char *opt, const char *arg);
+int opt_filter_complex(void *optctx, const char *opt, const char *arg);
+int opt_filter_complex_script(void *optctx, const char *opt, const char *arg);
+int opt_attach(void *optctx, const char *opt, const char *arg);
+int opt_video_frames(void *optctx, const char *opt, const char *arg);
+int opt_video_codec(void *optctx, const char *opt, const char *arg);
+int opt_sameq(void *optctx, const char *opt, const char *arg);
+int opt_timecode(void *optctx, const char *opt, const char *arg);
+
+int opt_vstats_file(void *optctx, const char *opt, const char *arg);
+int opt_vstats(void *optctx, const char *opt, const char *arg);
+int opt_video_frames(void *optctx, const char *opt, const char *arg);
+int opt_old2new(void *optctx, const char *opt, const char *arg);
+int opt_streamid(void *optctx, const char *opt, const char *arg);
+int opt_bitrate(void *optctx, const char *opt, const char *arg);
+int show_hwaccels(void *optctx, const char *opt, const char *arg);
+int opt_video_filters(void *optctx, const char *opt, const char *arg);
+int opt_audio_frames(void *optctx, const char *opt, const char *arg);
+int opt_audio_qscale(void *optctx, const char *opt, const char *arg);
+int opt_audio_codec(void *optctx, const char *opt, const char *arg);
+int opt_channel_layout(void *optctx, const char *opt, const char *arg);
+int opt_preset(void *optctx, const char *opt, const char *arg);
+int opt_audio_filters(void *optctx, const char *opt, const char *arg);
+int opt_subtitle_codec(void *optctx, const char *opt, const char *arg);
+int opt_video_channel(void *optctx, const char *opt, const char *arg);
+int opt_video_standard(void *optctx, const char *opt, const char *arg);
+int opt_sdp_file(void *optctx, const char *opt, const char *arg);
+int opt_data_codec(void *optctx, const char *opt, const char *arg);
+int opt_init_hw_device(void *optctx, const char *opt, const char *arg);
+int opt_filter_hw_device(void *optctx, const char *opt, const char *arg);
+void add_input_streams(OptionsContext *o, AVFormatContext *ic);
+void assert_file_overwrite(const char *filename);
+void dump_attachment(AVStream *st, const char *filename);
+uint8_t *get_line(AVIOContext *s);
+void uninit_options(OptionsContext *o);
+void init_options(OptionsContext *o);
+AVDictionary *strip_specifiers(AVDictionary *dict);
+void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec);
+int fftools_copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o);
+AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder);
+AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st);
+int open_input_file(OptionsContext *o, const char *filename);
+int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s);
+int choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost);
+OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index);
+void parse_matrix_coeffs(uint16_t *dest, const char *str);
+uint8_t *fftools_read_file(const char *filename);
+char *get_ost_filters(OptionsContext *o, AVFormatContext *oc, OutputStream *ost);
+void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc, const OutputStream *ost, enum AVMediaType type);
+OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index);
+OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index);
+OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index);
+OutputStream *new_unknown_stream(OptionsContext *o, AVFormatContext *oc, int source_index);
+OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index);
+OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index);
+int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata);
+void init_output_filter(OutputFilter *ofilter, OptionsContext *o, AVFormatContext *oc);
+int init_complex_filters(void);
+int open_output_file(OptionsContext *o, const char *filename);
+int opt_default_new(OptionsContext *o, const char *opt, const char *arg);
+int open_files(OptionGroupList *l, const char *inout, int (*open_file)(OptionsContext*, const char*));
+
 #endif /* FFTOOLS_FFMPEG_H */

android/app/src/main/cpp/fftools_ffmpeg_filter.c

@@ -301,10 +301,17 @@ static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
             exit_program(1);
         }
         ist = input_streams[input_files[file_idx]->ist_index + st->index];
+        if (ist->user_set_discard == AVDISCARD_ALL) {
+            av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
+                   "matches a disabled input stream.\n", p, fg->graph_desc);
+            exit_program(1);
+        }
     } else {
         /* find the first unused stream of corresponding type */
         for (i = 0; i < nb_input_streams; i++) {
             ist = input_streams[i];
+            if (ist->user_set_discard == AVDISCARD_ALL)
+                continue;
             if (ist->dec_ctx->codec_type == type && ist->discard)
                 break;
         }
@@ -740,6 +747,7 @@ static int sub2video_prepare(InputStream *ist, InputFilter *ifilter)
     if (!ist->sub2video.frame)
         return AVERROR(ENOMEM);
     ist->sub2video.last_pts = INT64_MIN;
+    ist->sub2video.end_pts  = INT64_MIN;
     return 0;
 }
 

android/app/src/main/cpp/fftools_ffmpeg_hw.c

@@ -17,6 +17,9 @@
  */
 
 /*
+ * CHANGES 12.2019
+ * - Concurrent execution support
+ *
  * CHANGES 08.2018
  * --------------------------------------------------------
  * - fftools_ prefix added to file name and parent header
@@ -28,8 +31,8 @@
 
 #include "fftools_ffmpeg.h"
 
-static int nb_hw_devices;
-static HWDevice **hw_devices;
+__thread int nb_hw_devices;
+__thread HWDevice **hw_devices;
 
 static HWDevice *hw_device_get_by_type(enum AVHWDeviceType type)
 {
@@ -105,7 +108,7 @@ int hw_device_init_from_string(const char *arg, HWDevice **dev_out)
     // -> av_hwdevice_ctx_create_derived()
 
     AVDictionary *options = NULL;
-    char *type_name = NULL, *name = NULL, *device = NULL;
+    const char *type_name = NULL, *name = NULL, *device = NULL;
     enum AVHWDeviceType type;
     HWDevice *dev, *src;
     AVBufferRef *device_ref = NULL;
@@ -161,11 +164,13 @@ int hw_device_init_from_string(const char *arg, HWDevice **dev_out)
         ++p;
         q = strchr(p, ',');
         if (q) {
+            if (q - p > 0) {
             device = av_strndup(p, q - p);
             if (!device) {
                 err = AVERROR(ENOMEM);
                 goto fail;
             }
+            }
             err = av_dict_parse_string(&options, q + 1, "=", ",", 0);
             if (err < 0) {
                 errmsg = "failed to parse options";
@@ -174,7 +179,8 @@ int hw_device_init_from_string(const char *arg, HWDevice **dev_out)
         }
 
         err = av_hwdevice_ctx_create(&device_ref, type,
-                                     device ? device : p, options, 0);
+                                     q ? device : p[0] ? p : NULL,
+                                     options, 0);
         if (err < 0)
             goto fail;
 

android/app/src/main/cpp/mobileffmpeg.c

@@ -18,6 +18,20 @@
  */
 
 /*
+ * CHANGES 08.2019
+ * --------------------------------------------------------
+ * - lastCommandOutput methods introduced
+ * - AV_LOG_STDERR introduced
+ *
+ * CHANGES 04.2019
+ * --------------------------------------------------------
+ * - setNativeEnvironmentVariable method added
+ *
+ * CHANGES 02.2019
+ * --------------------------------------------------------
+ * - JavaVM registered via av_jni_set_java_vm()
+ * - registerNewNativeFFmpegPipe() method added
+ *
  * CHANGES 10.2018
  * --------------------------------------------------------
  * - getBuildConf method added
@@ -32,11 +46,15 @@
  */
 
 #include <pthread.h>
+#include <sys/types.h>
+#include <sys/stat.h>
 
 #include "config.h"
+#include "libavcodec/jni.h"
 #include "libavutil/bprint.h"
-#include "mobileffmpeg.h"
 #include "fftools_ffmpeg.h"
+#include "mobileffmpeg.h"
+#include "mobileffprobe.h"
 
 /** Callback data structure */
 struct CallbackData {
@@ -61,6 +79,10 @@ pthread_mutex_t lockMutex;
 pthread_mutex_t monitorMutex;
 pthread_cond_t monitorCondition;
 
+/** Last command output variables */
+pthread_mutex_t logMutex;
+static char *lastCommandOutput;
+
 pthread_t callbackThread;
 int redirectionEnabled;
 
@@ -79,9 +101,18 @@ static jmethodID logMethod;
 /** Global reference of statistics redirection method in Java */
 static jmethodID statisticsMethod;
 
+/** Global reference of String class in Java */
+static jclass stringClass;
+
+/** Global reference of String constructor in Java */
+static jmethodID stringConstructor;
+
 /** Full name of the Config class */
 const char *configClassName = "com/arthenica/mobileffmpeg/Config";
 
+/** Full name of String class */
+const char *stringClassName = "java/lang/String";
+
 /** Prototypes of native functions defined by Config class. */
 JNINativeMethod configMethods[] = {
     {"enableNativeRedirection", "()V", (void*) Java_com_arthenica_mobileffmpeg_Config_enableNativeRedirection},
@@ -90,19 +121,24 @@ JNINativeMethod configMethods[] = {
     {"getNativeLogLevel", "()I", (void*) Java_com_arthenica_mobileffmpeg_Config_getNativeLogLevel},
     {"getNativeFFmpegVersion", "()Ljava/lang/String;", (void*) Java_com_arthenica_mobileffmpeg_Config_getNativeFFmpegVersion},
     {"getNativeVersion", "()Ljava/lang/String;", (void*) Java_com_arthenica_mobileffmpeg_Config_getNativeVersion},
-    {"nativeExecute", "([Ljava/lang/String;)I", (void*) Java_com_arthenica_mobileffmpeg_Config_nativeExecute},
-    {"nativeCancel", "()V", (void*) Java_com_arthenica_mobileffmpeg_Config_nativeCancel},
-    {"getNativeBuildConf", "()Ljava/lang/String;", (void*) Java_com_arthenica_mobileffmpeg_Config_getNativeBuildConf}
+    {"nativeFFmpegExecute", "([Ljava/lang/String;)I", (void*) Java_com_arthenica_mobileffmpeg_Config_nativeFFmpegExecute},
+    {"nativeFFmpegCancel", "()V", (void*) Java_com_arthenica_mobileffmpeg_Config_nativeFFmpegCancel},
+    {"nativeFFprobeExecute", "([Ljava/lang/String;)I", (void*) Java_com_arthenica_mobileffmpeg_Config_nativeFFprobeExecute},
+    {"registerNewNativeFFmpegPipe", "(Ljava/lang/String;)I", (void*) Java_com_arthenica_mobileffmpeg_Config_registerNewNativeFFmpegPipe},
+    {"getNativeBuildDate", "()Ljava/lang/String;", (void*) Java_com_arthenica_mobileffmpeg_Config_getNativeBuildDate},
+    {"setNativeEnvironmentVariable", "(Ljava/lang/String;Ljava/lang/String;)I", (void*) Java_com_arthenica_mobileffmpeg_Config_setNativeEnvironmentVariable}
 };
 
 /** Forward declaration for function defined in fftools_ffmpeg.c */
-int execute(int argc, char **argv);
+int ffmpeg_execute(int argc, char **argv);
 
 /** DEFINES LINE SIZE USED FOR LOGGING */
 #define LOG_LINE_SIZE 1024
 
 static const char *avutil_log_get_level_str(int level) {
     switch (level) {
+    case AV_LOG_STDERR:
+        return "stderr";
     case AV_LOG_QUIET:
         return "quiet";
     case AV_LOG_DEBUG:
@@ -189,6 +225,17 @@ void monitorInit() {
     pthread_condattr_destroy(&cattributes);
 }
 
+void logInit() {
+    pthread_mutexattr_t attributes;
+    pthread_mutexattr_init(&attributes);
+    pthread_mutexattr_settype(&attributes, PTHREAD_MUTEX_RECURSIVE_NP);
+
+    pthread_mutex_init(&logMutex, &attributes);
+    pthread_mutexattr_destroy(&attributes);
+
+    lastCommandOutput = NULL;
+}
+
 void mutexUnInit() {
     pthread_mutex_destroy(&lockMutex);
 }
@@ -198,14 +245,72 @@ void monitorUnInit() {
     pthread_cond_destroy(&monitorCondition);
 }
 
+void logUnInit() {
+    pthread_mutex_destroy(&logMutex);
+}
+
 void mutexLock() {
     pthread_mutex_lock(&lockMutex);
 }
 
+void lastCommandOutputLock() {
+    pthread_mutex_lock(&logMutex);
+}
+
 void mutexUnlock() {
     pthread_mutex_unlock(&lockMutex);
 }
 
+void lastCommandOutputUnlock() {
+    pthread_mutex_unlock(&logMutex);
+}
+
+void clearLastCommandOutput() {
+    lastCommandOutputLock();
+
+    if (lastCommandOutput != NULL) {
+        av_free(lastCommandOutput);
+        lastCommandOutput = NULL;
+    }
+
+    lastCommandOutputUnlock();
+}
+
+void appendLastCommandOutput(const char *logMessage) {
+    size_t length = 0;
+    char *tempLastCommandOutput = NULL;
+    size_t logMessageLength = strlen(logMessage);
+
+    if (logMessageLength <= 0) {
+        return;
+    }
+
+    lastCommandOutputLock();
+
+    if (lastCommandOutput == NULL) {
+        length = logMessageLength + 1;
+
+        lastCommandOutput = (char*)av_malloc(length);
+        memcpy(lastCommandOutput, logMessage, length);
+    } else {
+        size_t length1 = strlen(lastCommandOutput);
+        length = length1 + logMessageLength + 1;
+
+        char *newLastCommandOutput = (char*)av_malloc(length);
+        memcpy(newLastCommandOutput, lastCommandOutput, length1);
+        memcpy(newLastCommandOutput + length1, logMessage, logMessageLength + 1);
+
+        tempLastCommandOutput = lastCommandOutput;
+        lastCommandOutput = newLastCommandOutput;
+    }
+
+    lastCommandOutputUnlock();
+
+    if (tempLastCommandOutput != NULL) {
+        av_free(tempLastCommandOutput);
+    }
+}
+
 void monitorWait(int milliSeconds) {
     struct timeval tp;
     struct timespec ts;
@@ -234,15 +339,18 @@ void monitorNotify() {
 
 /**
  * Adds log data to the end of callback data list.
+ *
+ * @param level log level
+ * @param data log data
  */
 void logCallbackDataAdd(int level, const char *data) {
 
     // CREATE DATA STRUCT FIRST
-    struct CallbackData *newData = (struct CallbackData*)malloc(sizeof(struct CallbackData));
+    struct CallbackData *newData = (struct CallbackData*)av_malloc(sizeof(struct CallbackData));
     newData->type = 1;
     newData->logLevel = level;
     size_t dataSize = strlen(data) + 1;
-    newData->logData = (char*)malloc(dataSize);
+    newData->logData = (char*)av_malloc(dataSize);
     memcpy(newData->logData, data, dataSize);
     newData->next = NULL;
 
@@ -275,7 +383,7 @@ void logCallbackDataAdd(int level, const char *data) {
 void statisticsCallbackDataAdd(int frameNumber, float fps, float quality, int64_t size, int time, double bitrate, double speed) {
 
     // CREATE DATA STRUCT FIRST
-    struct CallbackData *newData = (struct CallbackData*)malloc(sizeof(struct CallbackData));
+    struct CallbackData *newData = (struct CallbackData*)av_malloc(sizeof(struct CallbackData));
     newData->type = 2;
     newData->statisticsFrameNumber = frameNumber;
     newData->statisticsFps = fps;
@@ -345,10 +453,10 @@ struct CallbackData *callbackDataRemove() {
 /**
  * Callback function for FFmpeg logs.
  *
- * \param pointer to AVClass struct
- * \param level
- * \param format
- * \param arguments
+ * @param ptr pointer to AVClass struct
+ * @param level log level
+ * @param format format string
+ * @param vargs arguments
  */
 void mobileffmpeg_log_callback_function(void *ptr, int level, const char* format, va_list vargs) {
     char line[LOG_LINE_SIZE];
@@ -359,35 +467,39 @@ void mobileffmpeg_log_callback_function(void *ptr, int level, const char* format
         level &= 0xff;
     }
     int activeLogLevel = av_log_get_level();
-    if ((activeLogLevel == AV_LOG_QUIET) || (level > activeLogLevel)) {
+
+    // AV_LOG_STDERR logs are always redirected
+    if ((activeLogLevel == AV_LOG_QUIET && level != AV_LOG_STDERR) || (level > activeLogLevel)) {
         return;
     }
 
     avutil_log_format_line(ptr, level, format, vargs, part, &print_prefix);
+    avutil_log_sanitize(part[0].str);
+    avutil_log_sanitize(part[1].str);
+    avutil_log_sanitize(part[2].str);
+    avutil_log_sanitize(part[3].str);
+
     snprintf(line, sizeof(line), "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
 
-    avutil_log_sanitize(part[0].str);
-    logCallbackDataAdd(level, part[0].str);
-    avutil_log_sanitize(part[1].str);
-    logCallbackDataAdd(level, part[1].str);
-    avutil_log_sanitize(part[2].str);
-    logCallbackDataAdd(level, part[2].str);
-    avutil_log_sanitize(part[3].str);
-    logCallbackDataAdd(level, part[3].str);
+    logCallbackDataAdd(level, line);
+    appendLastCommandOutput(line);
 
+    av_bprint_finalize(part, NULL);
+    av_bprint_finalize(part+1, NULL);
+    av_bprint_finalize(part+2, NULL);
     av_bprint_finalize(part+3, NULL);
 }
 
 /**
  * Callback function for FFmpeg statistics.
  *
- * \param frameNumber last processed frame number
- * \param fps frames processed per second
- * \param quality quality of the output stream (video only)
- * \param size size in bytes
- * \param time processed output duration
- * \param bitrate output bit rate in kbits/s
- * \param speed processing speed = processed duration / operation duration
+ * @param frameNumber last processed frame number
+ * @param fps frames processed per second
+ * @param quality quality of the output stream (video only)
+ * @param size size in bytes
+ * @param time processed output duration
+ * @param bitrate output bit rate in kbits/s
+ * @param speed processing speed = processed duration / operation duration
  */
 void mobileffmpeg_statistics_callback_function(int frameNumber, float fps, float quality, int64_t size, int time, double bitrate, double speed) {
     statisticsCallbackDataAdd(frameNumber, fps, quality, size, time, bitrate, speed);
@@ -429,7 +541,7 @@ void *callbackThreadFunction() {
                 (*env)->DeleteLocalRef(env, byteArray);
 
                 // CLEAN LOG DATA
-                free(callbackData->logData);
+                av_free(callbackData->logData);
 
             } else {
 
@@ -445,7 +557,7 @@ void *callbackThreadFunction() {
 
             // CLEAN STRUCT
             callbackData->next = NULL;
-            free(callbackData);
+            av_free(callbackData);
 
         } else {
             monitorWait(100);
@@ -462,9 +574,9 @@ void *callbackThreadFunction() {
 /**
  * Called when 'mobileffmpeg' native library is loaded.
  *
- * \param vm pointer to the running virtual machine
- * \param reserved reserved
- * \return JNI version needed by 'mobileffmpeg' library
+ * @param vm pointer to the running virtual machine
+ * @param reserved reserved
+ * @return JNI version needed by 'mobileffmpeg' library
  */
 jint JNI_OnLoad(JavaVM *vm, void *reserved) {
     JNIEnv *env;
@@ -479,28 +591,44 @@ jint JNI_OnLoad(JavaVM *vm, void *reserved) {
         return JNI_FALSE;
     }
 
-    if ((*env)->RegisterNatives(env, localConfigClass, configMethods, 9) < 0) {
+    if ((*env)->RegisterNatives(env, localConfigClass, configMethods, 12) < 0) {
         LOGE("OnLoad failed to RegisterNatives for class %s.\n", configClassName);
         return JNI_FALSE;
     }
 
+    jclass localStringClass = (*env)->FindClass(env, stringClassName);
+    if (localStringClass == NULL) {
+        LOGE("OnLoad failed to FindClass %s.\n", stringClassName);
+        return JNI_FALSE;
+    }
+
     (*env)->GetJavaVM(env, &globalVm);
 
     logMethod = (*env)->GetStaticMethodID(env, localConfigClass, "log", "(I[B)V");
     if (logMethod == NULL) {
-        LOGE("OnLoad thread failed to GetMethodID for %s.\n", "log");
+        LOGE("OnLoad thread failed to GetStaticMethodID for %s.\n", "log");
         (*globalVm)->DetachCurrentThread(globalVm);
         return JNI_FALSE;
     }
 
     statisticsMethod = (*env)->GetStaticMethodID(env, localConfigClass, "statistics", "(IFFJIDD)V");
     if (logMethod == NULL) {
-        LOGE("OnLoad thread failed to GetMethodID for %s.\n", "statistics");
+        LOGE("OnLoad thread failed to GetStaticMethodID for %s.\n", "statistics");
         (*globalVm)->DetachCurrentThread(globalVm);
         return JNI_FALSE;
     }
 
+    stringConstructor = (*env)->GetMethodID(env, localStringClass, "<init>", "([BLjava/lang/String;)V");
+    if (stringConstructor == NULL) {
+        LOGE("OnLoad thread failed to GetMethodID for %s.\n", "<init>");
+        (*globalVm)->DetachCurrentThread(globalVm);
+        return JNI_FALSE;
+    }
+
+    av_jni_set_java_vm(vm, NULL);
+
     configClass = (jclass) ((*env)->NewGlobalRef(env, localConfigClass));
+    stringClass = (jclass) ((*env)->NewGlobalRef(env, localStringClass));
 
     redirectionEnabled = 0;
 
@@ -509,6 +637,7 @@ jint JNI_OnLoad(JavaVM *vm, void *reserved) {
 
     mutexInit();
     monitorInit();
+    logInit();
 
     return JNI_VERSION_1_6;
 }
@@ -516,9 +645,9 @@ jint JNI_OnLoad(JavaVM *vm, void *reserved) {
 /**
  * Sets log level.
  *
- * \param env pointer to native method interface
- * \param reference to the class on which this method is invoked
- * \param log level
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
+ * @param level log level
  */
 JNIEXPORT void JNICALL Java_com_arthenica_mobileffmpeg_Config_setNativeLogLevel(JNIEnv *env, jclass object, jint level) {
     av_log_set_level(level);
@@ -527,8 +656,8 @@ JNIEXPORT void JNICALL Java_com_arthenica_mobileffmpeg_Config_setNativeLogLevel(
 /**
  * Returns current log level.
  *
- * \param env pointer to native method interface
- * \param reference to the class on which this method is invoked
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
  */
 JNIEXPORT jint JNICALL Java_com_arthenica_mobileffmpeg_Config_getNativeLogLevel(JNIEnv *env, jclass object) {
     return av_log_get_level();
@@ -537,8 +666,8 @@ JNIEXPORT jint JNICALL Java_com_arthenica_mobileffmpeg_Config_getNativeLogLevel(
 /**
  * Enables log and statistics redirection.
  *
- * \param env pointer to native method interface
- * \param reference to the class on which this method is invoked
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
  */
 JNIEXPORT void JNICALL Java_com_arthenica_mobileffmpeg_Config_enableNativeRedirection(JNIEnv *env, jclass object) {
     mutexLock();
@@ -564,8 +693,8 @@ JNIEXPORT void JNICALL Java_com_arthenica_mobileffmpeg_Config_enableNativeRedire
 /**
  * Disables log and statistics redirection.
  *
- * \param env pointer to native method interface
- * \param reference to the class on which this method is invoked
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
  */
 JNIEXPORT void JNICALL Java_com_arthenica_mobileffmpeg_Config_disableNativeRedirection(JNIEnv *env, jclass object) {
 
@@ -588,9 +717,9 @@ JNIEXPORT void JNICALL Java_com_arthenica_mobileffmpeg_Config_disableNativeRedir
 /**
  * Returns FFmpeg version bundled within the library natively.
  *
- * \param env pointer to native method interface
- * \param object reference to the class on which this method is invoked
- * \return FFmpeg version string
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
+ * @return FFmpeg version string
  */
 JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_Config_getNativeFFmpegVersion(JNIEnv *env, jclass object) {
     return (*env)->NewStringUTF(env, FFMPEG_VERSION);
@@ -599,23 +728,23 @@ JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_Config_getNativeFFmpeg
 /**
  * Returns MobileFFmpeg library version natively.
  *
- * \param env pointer to native method interface
- * \param object reference to the class on which this method is invoked
- * \return MobileFFmpeg version string
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
+ * @return MobileFFmpeg version string
  */
 JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_Config_getNativeVersion(JNIEnv *env, jclass object) {
     return (*env)->NewStringUTF(env, MOBILE_FFMPEG_VERSION);
 }
 
 /**
- * Synchronously executes FFmpeg command natively with arguments provided.
+ * Synchronously executes FFmpeg natively with arguments provided.
  *
- * \param env pointer to native method interface
- * \param object reference to the class on which this method is invoked
- * \param stringArray reference to the object holding FFmpeg command arguments
- * \return zero on successful execution, non-zero on error
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
+ * @param stringArray reference to the object holding FFmpeg command arguments
+ * @return zero on successful execution, non-zero on error
  */
-JNIEXPORT jint JNICALL Java_com_arthenica_mobileffmpeg_Config_nativeExecute(JNIEnv *env, jclass object, jobjectArray stringArray) {
+JNIEXPORT jint JNICALL Java_com_arthenica_mobileffmpeg_Config_nativeFFmpegExecute(JNIEnv *env, jclass object, jobjectArray stringArray) {
     jstring *tempArray = NULL;
     int argumentCount = 1;
     char **argv = NULL;
@@ -624,15 +753,15 @@ JNIEXPORT jint JNICALL Java_com_arthenica_mobileffmpeg_Config_nativeExecute(JNIE
         int programArgumentCount = (*env)->GetArrayLength(env, stringArray);
         argumentCount = programArgumentCount + 1;
 
-        tempArray = (jstring *) malloc(sizeof(jstring) * programArgumentCount);
+        tempArray = (jstring *) av_malloc(sizeof(jstring) * programArgumentCount);
     }
 
     /* PRESERVE USAGE FORMAT
      *
      * ffmpeg <arguments>
      */
-    argv = (char **)malloc(sizeof(char*) * (argumentCount));
-    argv[0] = (char *)malloc(sizeof(char) * (strlen(LIB_NAME) + 1));
+    argv = (char **)av_malloc(sizeof(char*) * (argumentCount));
+    argv[0] = (char *)av_malloc(sizeof(char) * (strlen(LIB_NAME) + 1));
     strcpy(argv[0], LIB_NAME);
 
     // PREPARE
@@ -645,8 +774,11 @@ JNIEXPORT jint JNICALL Java_com_arthenica_mobileffmpeg_Config_nativeExecute(JNIE
         }
     }
 
+    // LAST COMMAND OUTPUT SHOULD BE CLEARED BEFORE STARTING A NEW EXECUTION
+    clearLastCommandOutput();
+
     // RUN
-    int retCode = execute(argumentCount, argv);
+    int retCode = ffmpeg_execute(argumentCount, argv);
 
     // CLEANUP
     if (tempArray != NULL) {
@@ -654,31 +786,85 @@ JNIEXPORT jint JNICALL Java_com_arthenica_mobileffmpeg_Config_nativeExecute(JNIE
             (*env)->ReleaseStringUTFChars(env, tempArray[i], argv[i + 1]);
         }
 
-        free(tempArray);
+        av_free(tempArray);
     }
-    free(argv[0]);
-    free(argv);
+    av_free(argv[0]);
+    av_free(argv);
 
     return retCode;
 }
 
 /**
- * Cancels an ongoing operation natively.
+ * Cancels an ongoing FFmpeg operation natively.
  *
- * \param env pointer to native method interface
- * \param object reference to the class on which this method is invoked
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
  */
-JNIEXPORT void JNICALL Java_com_arthenica_mobileffmpeg_Config_nativeCancel(JNIEnv *env, jclass object) {
+JNIEXPORT void JNICALL Java_com_arthenica_mobileffmpeg_Config_nativeFFmpegCancel(JNIEnv *env, jclass object) {
     cancel_operation();
 }
 
 /**
- * Returns build configuration for FFmpeg.
+ * Creates natively a new named pipe to use in FFmpeg operations.
  *
- * \param env pointer to native method interface
- * \param object reference to the class on which this method is invoked
- * \return build configuration string
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
+ * @param ffmpegPipePath full path of ffmpeg pipe
+ * @return zero on successful creation, non-zero on error
  */
-JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_Config_getNativeBuildConf(JNIEnv *env, jclass object) {
-    return (*env)->NewStringUTF(env, FFMPEG_CONFIGURATION);
+JNIEXPORT int JNICALL Java_com_arthenica_mobileffmpeg_Config_registerNewNativeFFmpegPipe(JNIEnv *env, jclass object, jstring ffmpegPipePath) {
+    const char *ffmpegPipePathString = (*env)->GetStringUTFChars(env, ffmpegPipePath, 0);
+
+    return mkfifo(ffmpegPipePathString, S_IRWXU | S_IRWXG | S_IROTH);
+}
+
+/**
+ * Returns MobileFFmpeg library build date natively.
+ *
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
+ * @return MobileFFmpeg library build date
+ */
+JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_Config_getNativeBuildDate(JNIEnv *env, jclass object) {
+    char buildDate[10];
+    sprintf(buildDate, "%d", MOBILE_FFMPEG_BUILD_DATE);
+    return (*env)->NewStringUTF(env, buildDate);
+}
+
+/**
+ * Sets an environment variable natively
+ *
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
+ * @param variableName environment variable name
+ * @param variableValue environment variable value
+ * @return zero on success, non-zero on error
+ */
+JNIEXPORT int JNICALL Java_com_arthenica_mobileffmpeg_Config_setNativeEnvironmentVariable(JNIEnv *env, jclass object, jstring variableName, jstring variableValue) {
+    const char *variableNameString = (*env)->GetStringUTFChars(env, variableName, 0);
+    const char *variableValueString = (*env)->GetStringUTFChars(env, variableValue, 0);
+
+    return setenv(variableNameString, variableValueString, 1);
+}
+
+/**
+ * Returns log output of the last executed command natively.
+ *
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
+ * @return output of the last executed command
+ */
+JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_Config_getNativeLastCommandOutput(JNIEnv *env, jclass object) {
+    if (lastCommandOutput != NULL) {
+        int size = strlen(lastCommandOutput);
+
+        if (size > 0) {
+            jbyteArray byteArray = (*env)->NewByteArray(env, size);
+            (*env)->SetByteArrayRegion(env, byteArray, 0, size, lastCommandOutput);
+            jstring charsetName = (*env)->NewStringUTF(env, "UTF-8");
+            return (jstring) (*env)->NewObject(env, stringClass, stringConstructor, byteArray, charsetName);
+        }
+    }
+
+    return (*env)->NewStringUTF(env, "");
 }

android/app/src/main/cpp/mobileffmpeg.h

@@ -27,7 +27,7 @@
 #include "libavutil/ffversion.h"
 
 /** Library version string */
-#define MOBILE_FFMPEG_VERSION "4.2"
+#define MOBILE_FFMPEG_VERSION "4.3.1"
 
 /** Defines tag used for Android logging. */
 #define LIB_NAME "mobile-ffmpeg"
@@ -91,23 +91,44 @@ JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_Config_getNativeVersio
 
 /*
  * Class:     com_arthenica_mobileffmpeg_Config
- * Method:    nativeExecute
+ * Method:    nativeFFmpegExecute
  * Signature: ([Ljava/lang/String;)I
  */
-JNIEXPORT jint JNICALL Java_com_arthenica_mobileffmpeg_Config_nativeExecute(JNIEnv *, jclass, jobjectArray);
+JNIEXPORT jint JNICALL Java_com_arthenica_mobileffmpeg_Config_nativeFFmpegExecute(JNIEnv *, jclass, jobjectArray);
 
 /*
  * Class:     com_arthenica_mobileffmpeg_Config
- * Method:    nativeCancel
+ * Method:    nativeFFmpegCancel
  * Signature: ()V
  */
-JNIEXPORT void JNICALL Java_com_arthenica_mobileffmpeg_Config_nativeCancel(JNIEnv *, jclass);
+JNIEXPORT void JNICALL Java_com_arthenica_mobileffmpeg_Config_nativeFFmpegCancel(JNIEnv *, jclass);
 
 /*
  * Class:     com_arthenica_mobileffmpeg_Config
- * Method:    getNativeBuildConf
+ * Method:    registerNewNativeFFmpegPipe
+ * Signature: (Ljava/lang/String;)I
+ */
+JNIEXPORT int JNICALL Java_com_arthenica_mobileffmpeg_Config_registerNewNativeFFmpegPipe(JNIEnv *env, jclass object, jstring ffmpegPipePath);
+
+/*
+ * Class:     com_arthenica_mobileffmpeg_Config
+ * Method:    getNativeBuildDate
  * Signature: ()Ljava/lang/String;
  */
-JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_Config_getNativeBuildConf(JNIEnv *, jclass);
+JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_Config_getNativeBuildDate(JNIEnv *env, jclass object);
+
+/**
+ * Class:     com_arthenica_mobileffmpeg_Config
+ * Method:    setNativeEnvironmentVariable
+ * Signature: (Ljava/lang/String;Ljava/lang/String;)I
+ */
+JNIEXPORT int JNICALL Java_com_arthenica_mobileffmpeg_Config_setNativeEnvironmentVariable(JNIEnv *env, jclass object, jstring variableName, jstring variableValue);
+
+/*
+ * Class:     com_arthenica_mobileffmpeg_Config
+ * Method:    getNativeLastCommandOutput
+ * Signature: ()Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_Config_getNativeLastCommandOutput(JNIEnv *env, jclass object);
 
 #endif /* MOBILE_FFMPEG_H */

android/app/src/main/cpp/mobileffmpeg_abidetect.c

@@ -18,6 +18,7 @@
  */
 
 #include "cpu-features.h"
+#include "fftools_ffmpeg.h"
 #include "mobileffmpeg_abidetect.h"
 
 /** Full name of the Java class that owns native functions in this file. */
@@ -26,15 +27,17 @@ const char *abiDetectClassName = "com/arthenica/mobileffmpeg/AbiDetect";
 /** Prototypes of native functions defined by this file. */
 JNINativeMethod abiDetectMethods[] = {
   {"getNativeAbi", "()Ljava/lang/String;", (void*) Java_com_arthenica_mobileffmpeg_AbiDetect_getNativeAbi},
-  {"getNativeCpuAbi", "()Ljava/lang/String;", (void*) Java_com_arthenica_mobileffmpeg_AbiDetect_getNativeCpuAbi}
+  {"getNativeCpuAbi", "()Ljava/lang/String;", (void*) Java_com_arthenica_mobileffmpeg_AbiDetect_getNativeCpuAbi},
+  {"isNativeLTSBuild", "()Z", (void*) Java_com_arthenica_mobileffmpeg_AbiDetect_isNativeLTSBuild},
+  {"getNativeBuildConf", "()Ljava/lang/String;", (void*) Java_com_arthenica_mobileffmpeg_AbiDetect_getNativeBuildConf}
 };
 
 /**
  * Called when 'abidetect' native library is loaded.
  *
- * \param vm pointer to the running virtual machine
- * \param reserved reserved
- * \return JNI version needed by 'abidetect' library
+ * @param vm pointer to the running virtual machine
+ * @param reserved reserved
+ * @return JNI version needed by 'abidetect' library
  */
 jint JNI_OnLoad(JavaVM *vm, void *reserved) {
     JNIEnv *env;
@@ -49,7 +52,7 @@ jint JNI_OnLoad(JavaVM *vm, void *reserved) {
         return JNI_FALSE;
     }
 
-    if ((*env)->RegisterNatives(env, abiDetectClass, abiDetectMethods, 2) < 0) {
+    if ((*env)->RegisterNatives(env, abiDetectClass, abiDetectMethods, 4) < 0) {
         LOGE("OnLoad failed to RegisterNatives for class %s.\n", abiDetectClassName);
         return JNI_FALSE;
     }
@@ -60,9 +63,9 @@ jint JNI_OnLoad(JavaVM *vm, void *reserved) {
 /**
  * Returns loaded ABI name.
  *
- * \param env pointer to native method interface
- * \param object reference to the class on which this method is invoked
- * \return loaded ABI name as UTF string
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
+ * @return loaded ABI name as UTF string
  */
 JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_AbiDetect_getNativeAbi(JNIEnv *env, jclass object) {
 
@@ -83,9 +86,9 @@ JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_AbiDetect_getNativeAbi
 /**
  * Returns ABI name of the running cpu.
  *
- * \param env pointer to native method interface
- * \param object reference to the class on which this method is invoked
- * \return ABI name of the running cpu as UTF string
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
+ * @return ABI name of the running cpu as UTF string
  */
 JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_AbiDetect_getNativeCpuAbi(JNIEnv *env, jclass object) {
     AndroidCpuFamily family = android_getCpuFamily();
@@ -117,9 +120,9 @@ JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_AbiDetect_getNativeCpu
 /**
  * Returns whether MobileFFmpeg release is a long term release or not.
  *
- * \param env pointer to native method interface
- * \param object reference to the class on which this method is invoked
- * \return YES or NO
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
+ * @return YES or NO
  */
 JNIEXPORT jboolean JNICALL Java_com_arthenica_mobileffmpeg_AbiDetect_isNativeLTSBuild(JNIEnv *env, jclass object) {
     #if defined(MOBILE_FFMPEG_LTS)
@@ -128,3 +131,14 @@ JNIEXPORT jboolean JNICALL Java_com_arthenica_mobileffmpeg_AbiDetect_isNativeLTS
         return JNI_FALSE;
     #endif
 }
+
+/**
+ * Returns build configuration for FFmpeg.
+ *
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
+ * @return build configuration string
+ */
+JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_AbiDetect_getNativeBuildConf(JNIEnv *env, jclass object) {
+    return (*env)->NewStringUTF(env, FFMPEG_CONFIGURATION);
+}

android/app/src/main/cpp/mobileffmpeg_abidetect.h

@@ -65,4 +65,11 @@ JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_AbiDetect_getNativeCpu
  */
 JNIEXPORT jboolean JNICALL Java_com_arthenica_mobileffmpeg_AbiDetect_isNativeLTSBuild(JNIEnv *, jclass);
 
+/*
+ * Class:     com_arthenica_mobileffmpeg_AbiDetect
+ * Method:    getNativeBuildConf
+ * Signature: ()Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_com_arthenica_mobileffmpeg_AbiDetect_getNativeBuildConf(JNIEnv *, jclass);
+
 #endif /* MOBILE_FFMPEG_ABIDETECT_H */

android/app/src/main/cpp/mobileffmpeg_exception.c

@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2018 Taner Sener
+ *
+ * This file is part of MobileFFmpeg.
+ *
+ * MobileFFmpeg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * MobileFFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <setjmp.h>
+
+/** Holds information to implement exception handling. */
+__thread jmp_buf ex_buf__;

android/app/src/main/cpp/mobileffmpeg_exception.h

@@ -24,6 +24,6 @@
 #include <setjmp.h>
 
 /** Holds information to implement exception handling. */
-jmp_buf ex_buf__;
+extern __thread jmp_buf ex_buf__;
 
 #endif // MOBILE_FFMPEG_EXCEPTION_H

android/app/src/main/cpp/mobileffprobe.c

@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2020 Taner Sener
+ *
+ * This file is part of MobileFFmpeg.
+ *
+ * MobileFFmpeg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * MobileFFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <pthread.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "config.h"
+#include "libavcodec/jni.h"
+#include "libavutil/bprint.h"
+#include "mobileffmpeg.h"
+
+/** Forward declaration for function defined in fftools_ffprobe.c */
+int ffprobe_execute(int argc, char **argv);
+
+/** Forward declaration for function defined in mobileffmpeg.c */
+void clearLastCommandOutput();
+
+/**
+ * Synchronously executes FFprobe natively with arguments provided.
+ *
+ * @param env pointer to native method interface
+ * @param object reference to the class on which this method is invoked
+ * @param stringArray reference to the object holding FFprobe command arguments
+ * @return zero on successful execution, non-zero on error
+ */
+JNIEXPORT jint JNICALL Java_com_arthenica_mobileffmpeg_Config_nativeFFprobeExecute(JNIEnv *env, jclass object, jobjectArray stringArray) {
+    jstring *tempArray = NULL;
+    int argumentCount = 1;
+    char **argv = NULL;
+
+    if (stringArray != NULL) {
+        int programArgumentCount = (*env)->GetArrayLength(env, stringArray);
+        argumentCount = programArgumentCount + 1;
+
+        tempArray = (jstring *) av_malloc(sizeof(jstring) * programArgumentCount);
+    }
+
+    /* PRESERVE USAGE FORMAT
+     *
+     * ffprobe <arguments>
+     */
+    argv = (char **)av_malloc(sizeof(char*) * (argumentCount));
+    argv[0] = (char *)av_malloc(sizeof(char) * (strlen(LIB_NAME) + 1));
+    strcpy(argv[0], LIB_NAME);
+
+    // PREPARE
+    if (stringArray != NULL) {
+        for (int i = 0; i < (argumentCount - 1); i++) {
+            tempArray[i] = (jstring) (*env)->GetObjectArrayElement(env, stringArray, i);
+            if (tempArray[i] != NULL) {
+                argv[i + 1] = (char *) (*env)->GetStringUTFChars(env, tempArray[i], 0);
+            }
+        }
+    }
+
+    // LAST COMMAND OUTPUT SHOULD BE CLEARED BEFORE STARTING A NEW EXECUTION
+    clearLastCommandOutput();
+
+    // RUN
+    int retCode = ffprobe_execute(argumentCount, argv);
+
+    // CLEANUP
+    if (tempArray != NULL) {
+        for (int i = 0; i < (argumentCount - 1); i++) {
+            (*env)->ReleaseStringUTFChars(env, tempArray[i], argv[i + 1]);
+        }
+
+        av_free(tempArray);
+    }
+    av_free(argv[0]);
+    av_free(argv);
+
+    return retCode;
+}

android/app/src/main/cpp/mobileffprobe.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2020 Taner Sener
+ *
+ * This file is part of MobileFFmpeg.
+ *
+ * MobileFFmpeg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * MobileFFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MOBILE_FFPROBE_H
+#define MOBILE_FFPROBE_H
+
+#include <jni.h>
+
+/*
+ * Class:     com_arthenica_mobileffmpeg_Config
+ * Method:    nativeFFprobeExecute
+ * Signature: ([Ljava/lang/String;)I
+ */
+JNIEXPORT jint JNICALL Java_com_arthenica_mobileffmpeg_Config_nativeFFprobeExecute(JNIEnv *, jclass, jobjectArray);
+
+#endif /* MOBILE_FFPROBE_H */

android/app/src/main/java/com/arthenica/mobileffmpeg/AbiDetect.java

@@ -19,6 +19,8 @@
 
 package com.arthenica.mobileffmpeg;
 
+import android.os.Build;
+
 /**
  * <p>This class is used to detect running ABI name using Android's <code>cpufeatures</code>
  * library.
@@ -30,13 +32,22 @@ public class AbiDetect {
 
     static {
         armV7aNeonLoaded = false;
-        System.loadLibrary("mobileffmpeg-abidetect");
+
+        /* LOAD NOT-LOADED LIBRARIES ON API < 21 */
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
+            System.loadLibrary("cpufeatures");
+        }
+        System.loadLibrary("mobileffmpeg_abidetect");
 
         /* ALL LIBRARIES LOADED AT STARTUP */
         Config.class.getName();
         FFmpeg.class.getName();
     }
 
+    static final String ARM_V7A = "arm-v7a";
+
+    static final String ARM_V7A_NEON = "arm-v7a-neon";
+
     private static boolean armV7aNeonLoaded;
 
     /**
@@ -56,7 +67,7 @@ public class AbiDetect {
      */
     public static String getAbi() {
         if (armV7aNeonLoaded) {
-            return "arm-v7a-neon";
+            return ARM_V7A_NEON;
         } else {
             return getNativeAbi();
         }
@@ -67,7 +78,7 @@ public class AbiDetect {
      *
      * @return loaded ABI name
      */
-    private native static String getNativeAbi();
+    public native static String getNativeAbi();
 
     /**
      * <p>Returns ABI name of the running cpu.
@@ -83,4 +94,11 @@ public class AbiDetect {
      */
     native static boolean isNativeLTSBuild();
 
+    /**
+     * <p>Returns build configuration for <code>FFmpeg</code>.
+     *
+     * @return build configuration string
+     */
+    native static String getNativeBuildConf();
+
 }

android/app/src/main/java/com/arthenica/mobileffmpeg/CameraSupport.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2019 Taner Sener
+ *
+ * This file is part of MobileFFmpeg.
+ *
+ * MobileFFmpeg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * MobileFFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.arthenica.mobileffmpeg;
+
+import android.content.Context;
+import android.hardware.camera2.CameraAccessException;
+import android.hardware.camera2.CameraCharacteristics;
+import android.hardware.camera2.CameraManager;
+import android.hardware.camera2.CameraMetadata;
+import android.os.Build;
+import android.util.Log;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static android.content.Context.CAMERA_SERVICE;
+import static com.arthenica.mobileffmpeg.Config.TAG;
+
+class CameraSupport {
+
+    /**
+     * <p>Compatibility method for extracting supported camera ids.
+     *
+     * @param context application context
+     * @return returns the list of supported camera ids
+     */
+    static List<String> extractSupportedCameraIds(final Context context) {
+        final List<String> detectedCameraIdList = new ArrayList<>();
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            try {
+                final CameraManager manager = (CameraManager) context.getSystemService(CAMERA_SERVICE);
+                if (manager != null) {
+                    final String[] cameraIdList = manager.getCameraIdList();
+
+                    for (String cameraId : cameraIdList) {
+                        final CameraCharacteristics chars = manager.getCameraCharacteristics(cameraId);
+                        final Integer cameraSupport = chars.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);
+
+                        if (cameraSupport != null && cameraSupport == CameraMetadata.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY) {
+                            Log.d(TAG, "Detected camera with id " + cameraId + " has LEGACY hardware level which is not supported by Android Camera2 NDK API.");
+                        } else if (cameraSupport != null) {
+                            detectedCameraIdList.add(cameraId);
+                        }
+                    }
+                }
+            } catch (final CameraAccessException e) {
+                Log.w(TAG, "Detecting camera ids failed.", e);
+            }
+        }
+
+        return detectedCameraIdList;
+    }
+
+}

android/app/src/main/java/com/arthenica/mobileffmpeg/Config.java

@@ -20,50 +20,54 @@
 package com.arthenica.mobileffmpeg;
 
 import android.content.Context;
-import android.system.ErrnoException;
-import android.system.Os;
+import android.os.Build;
 import android.util.Log;
 
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.atomic.AtomicReference;
 
-import static com.arthenica.mobileffmpeg.FFmpeg.getVersion;
-
 /**
  * <p>This class is used to configure MobileFFmpeg library utilities/tools.
  *
- * <p>1. {@link LogCallback}: By default this class redirects FFmpeg output to Logcat. As another
- * option, it is possible not to print messages to Logcat and pass them to a {@link LogCallback}
- * function. This function can decide whether to print these logs, show them inside another
- * container or ignore them.
+ * <p>1. {@link LogCallback}: This class redirects FFmpeg/FFprobe output to Logcat by default. As
+ * an alternative, it is possible not to print messages to Logcat and pass them to a
+ * {@link LogCallback} function. This function can decide whether to print these logs, show them
+ * inside another container or ignore them.
  *
- * <p>2. {@link #setLogLevel(Level)}/{@link #getLogLevel()}: Use this methods to see/control FFmpeg
- * log severity.
+ * <p>2. {@link #setLogLevel(Level)}/{@link #getLogLevel()}: Use this methods to set/get
+ * FFmpeg/FFprobe log severity.
  *
- * <p>3. {@link StatisticsCallback}: It is possible to receive statistics about ongoing operation by
- * defining a {@link StatisticsCallback} function or by calling {@link #getLastReceivedStatistics()}
- * method.
+ * <p>3. {@link StatisticsCallback}: It is possible to receive statistics about an ongoing
+ * operation by defining a {@link StatisticsCallback} function or by calling
+ * {@link #getLastReceivedStatistics()} method.
  *
  * <p>4. Font configuration: It is possible to register custom fonts with
  * {@link #setFontconfigConfigurationPath(String)} and
  * {@link #setFontDirectory(Context, String, Map)} methods.
  *
- * <p>PS: This class is introduced in v2.1 as an enhanced version of older <code>Log</code> class.
- *
  * @author Taner Sener
  * @since v2.1
  */
 public class Config {
 
+    public static final int RETURN_CODE_SUCCESS = 0;
+
+    public static final int RETURN_CODE_CANCEL = 255;
+
+    private static int lastReturnCode = 0;
+
     /**
      * Defines tag used for logging.
      */
     public static final String TAG = "mobile-ffmpeg";
 
+    public static final String MOBILE_FFMPEG_PIPE_PREFIX = "mf_pipe_";
+
     private static LogCallback logCallbackFunction;
 
     private static Level activeLogLevel;
@@ -72,23 +76,39 @@ public class Config {
 
     private static Statistics lastReceivedStatistics;
 
-    private static final AtomicReference<StringBuffer> systemCommandOutputReference;
-
-    private static boolean runningSystemCommand;
+    private static int lastCreatedPipeIndex;
 
     static {
 
         Log.i(Config.TAG, "Loading mobile-ffmpeg.");
 
-        /* ALL LIBRARIES LOADED AT STARTUP */
-        Abi cpuAbi = Abi.from(AbiDetect.getNativeCpuAbi());
+        /* LOAD NOT-LOADED LIBRARIES ON API < 21 */
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
+            final List<String> externalLibrariesEnabled = getExternalLibraries();
+            if (externalLibrariesEnabled.contains("tesseract") || externalLibrariesEnabled.contains("x265") || externalLibrariesEnabled.contains("snappy") || externalLibrariesEnabled.contains("openh264") || externalLibrariesEnabled.contains("rubberband")) {
+                // libc++_shared.so included only when tesseract or x265 is enabled
+                System.loadLibrary("c++_shared");
+            }
+            System.loadLibrary("cpufeatures");
+            System.loadLibrary("avutil");
+            System.loadLibrary("swscale");
+            System.loadLibrary("swresample");
+            System.loadLibrary("avcodec");
+            System.loadLibrary("avformat");
+            System.loadLibrary("avfilter");
+            System.loadLibrary("avdevice");
+        }
+
+        /* ALL MOBILE-FFMPEG LIBRARIES LOADED AT STARTUP */
+        Abi.class.getName();
         FFmpeg.class.getName();
+        FFprobe.class.getName();
 
         /*
          * NEON supported arm-v7a library has a different name
          */
         boolean nativeLibraryLoaded = false;
-        if (cpuAbi == Abi.ABI_ARMV7A_NEON) {
+        if (AbiDetect.ARM_V7A.equals(AbiDetect.getNativeAbi())) {
             if (AbiDetect.isNativeLTSBuild()) {
 
                 /*
@@ -96,7 +116,7 @@ public class Config {
                  */
 
                 try {
-                    System.loadLibrary("mobileffmpeg-armv7a-neon");
+                    System.loadLibrary("mobileffmpeg_armv7a_neon");
                     nativeLibraryLoaded = true;
                     AbiDetect.setArmV7aNeonLoaded(true);
                 } catch (final UnsatisfiedLinkError e) {
@@ -111,19 +131,16 @@ public class Config {
             System.loadLibrary("mobileffmpeg");
         }
 
-        Log.i(Config.TAG, String.format("Loaded mobile-ffmpeg-%s-%s-%s.", getPackageName(), AbiDetect.getAbi(), getVersion()));
+        Log.i(Config.TAG, String.format("Loaded mobile-ffmpeg-%s-%s-%s-%s.", getPackageName(), AbiDetect.getAbi(), getVersion(), getBuildDate()));
 
         /* NATIVE LOG LEVEL IS RECEIVED ONLY ON STARTUP */
         activeLogLevel = Level.from(getNativeLogLevel());
 
         lastReceivedStatistics = new Statistics();
 
-        Config.enableRedirection();
+        enableRedirection();
 
-        systemCommandOutputReference = new AtomicReference<>();
-        systemCommandOutputReference.set(new StringBuffer());
-
-        runningSystemCommand = false;
+        lastCreatedPipeIndex = 0;
     }
 
     /**
@@ -134,14 +151,15 @@ public class Config {
 
     /**
      * <p>Enables log and statistics redirection.
-     * <p>When redirection is not enabled FFmpeg logs are printed to stderr. By enabling redirection, they are routed
-     * to Logcat and can be routed further to a callback function.
-     * <p>Statistics redirection behaviour is similar. Statistics are not printed at all if redirection is not enabled.
-     * If it is enabled then it is possible to define a statistics callback function but if you don't, they are not
-     * printed anywhere and only saved as <code>lastReceivedStatistics</code> data which can be polled with
+     * <p>When redirection is not enabled FFmpeg/FFprobe logs are printed to stderr. By enabling
+     * redirection, they are routed to Logcat and can be routed further to a callback function.
+     * <p>Statistics redirection behaviour is similar. Statistics are not printed at all if
+     * redirection is not enabled. If it is enabled then it is possible to define a statistics
+     * callback function but if you don't, they are not printed anywhere and only saved as
+     * <code>lastReceivedStatistics</code> data which can be polled with
      * {@link #getLastReceivedStatistics()}.
-     * <p>Note that redirection is enabled by default. If you do not want to use its functionality please use
-     * {@link #disableRedirection()} to disable it.
+     * <p>Note that redirection is enabled by default. If you do not want to use its functionality
+     * please use {@link #disableRedirection()} to disable it.
      */
     public static void enableRedirection() {
         enableNativeRedirection();
@@ -176,7 +194,7 @@ public class Config {
     }
 
     /**
-     * <p>Sets a callback function to redirect FFmpeg logs.
+     * <p>Sets a callback function to redirect FFmpeg/FFprobe logs.
      *
      * @param newLogCallback new log callback function or NULL to disable a previously defined callback
      */
@@ -203,25 +221,18 @@ public class Config {
         final Level level = Level.from(levelValue);
         final String text = new String(logMessage);
 
-        if (runningSystemCommand) {
-
-            // REDIRECT SYSTEM OUTPUT
-            if (activeLogLevel != Level.AV_LOG_QUIET && levelValue <= activeLogLevel.getValue()) {
-                systemCommandOutputReference.get().append(text);
-            }
-            return;
-        }
-
-        if (activeLogLevel == Level.AV_LOG_QUIET || levelValue > activeLogLevel.getValue()) {
+        // AV_LOG_STDERR logs are always redirected
+        if ((activeLogLevel == Level.AV_LOG_QUIET && levelValue != Level.AV_LOG_STDERR.getValue()) || levelValue > activeLogLevel.getValue()) {
             // LOG NEITHER PRINTED NOR FORWARDED
             return;
         }
 
-        // ALWAYS REDIRECT COMMAND OUTPUT
-        FFmpeg.appendCommandOutput(text);
-
         if (logCallbackFunction != null) {
-            logCallbackFunction.apply(new LogMessage(level, text));
+            try {
+                logCallbackFunction.apply(new LogMessage(level, text));
+            } catch (final Exception e) {
+                Log.e(Config.TAG, "Exception thrown inside LogCallback block", e);
+            }
         } else {
             switch (level) {
                 case AV_LOG_QUIET: {
@@ -233,6 +244,7 @@ public class Config {
                     android.util.Log.d(TAG, text);
                 }
                 break;
+                case AV_LOG_STDERR:
                 case AV_LOG_VERBOSE: {
                     android.util.Log.v(TAG, text);
                 }
@@ -277,7 +289,11 @@ public class Config {
         lastReceivedStatistics.update(newStatistics);
 
         if (statisticsCallbackFunction != null) {
-            statisticsCallbackFunction.apply(lastReceivedStatistics);
+            try {
+                statisticsCallbackFunction.apply(lastReceivedStatistics);
+            } catch (final Exception e) {
+                Log.e(Config.TAG, "Exception thrown inside StatisticsCallback block", e);
+            }
         }
     }
 
@@ -301,10 +317,10 @@ public class Config {
      * <p>Sets and overrides <code>fontconfig</code> configuration directory.
      *
      * @param path directory which contains fontconfig configuration (fonts.conf)
-     * @throws ErrnoException if an error occurs
+     * @return zero on success, non-zero on error
      */
-    public static void setFontconfigConfigurationPath(final String path) throws ErrnoException {
-        Os.setenv("FONTCONFIG_PATH", path, true);
+    public static int setFontconfigConfigurationPath(final String path) {
+        return setNativeEnvironmentVariable("FONTCONFIG_PATH", path);
     }
 
     /**
@@ -378,7 +394,7 @@ public class Config {
 
             Log.d(TAG, String.format("Font directory %s registered successfully.", fontDirectoryPath));
 
-        } catch (final ErrnoException | IOException e) {
+        } catch (final IOException e) {
             Log.e(TAG, String.format("Failed to set font directory: %s.", fontDirectoryPath), e);
         } finally {
             if (reference.get() != null) {
@@ -412,57 +428,171 @@ public class Config {
     }
 
     /**
-     * Executes system command. System command is not logged to output.
+     * <p>Creates a new named pipe to use in <code>FFmpeg</code> operations.
      *
-     * @param arguments                   command arguments
-     * @param commandOutputEndPatternList list of patterns which will indicate that operation has ended
-     * @param timeout                     execution timeout
-     * @return return code
+     * <p>Please note that creator is responsible of closing created pipes.
+     *
+     * @param context application context
+     * @return the full path of named pipe
      */
-    static int systemExecute(final String[] arguments, final List<String> commandOutputEndPatternList, final long timeout) {
-        systemCommandOutputReference.set(new StringBuffer());
-        runningSystemCommand = true;
+    public static String registerNewFFmpegPipe(final Context context) {
 
-        int rc = Config.nativeExecute(arguments);
+        // PIPES ARE CREATED UNDER THE CACHE DIRECTORY
+        final File cacheDir = context.getCacheDir();
 
-        long totalWaitTime = 0;
+        final String newFFmpegPipePath = cacheDir + File.separator + MOBILE_FFMPEG_PIPE_PREFIX + (++lastCreatedPipeIndex);
 
-        try {
-            while (!systemCommandOutputContainsPattern(commandOutputEndPatternList) && (totalWaitTime < timeout)) {
-                synchronized (systemCommandOutputReference) {
-                    systemCommandOutputReference.wait(20);
-                }
-                totalWaitTime += 20;
-            }
-        } catch (final InterruptedException e) {
-            Log.w(TAG, "systemExecute operation interrupted.", e);
+        // FIRST CLOSE OLD PIPES WITH THE SAME NAME
+        closeFFmpegPipe(newFFmpegPipePath);
+
+        int rc = registerNewNativeFFmpegPipe(newFFmpegPipePath);
+        if (rc == 0) {
+            return newFFmpegPipePath;
+        } else {
+            Log.e(TAG, String.format("Failed to register new FFmpeg pipe %s. Operation failed with rc=%d.", newFFmpegPipePath, rc));
+            return null;
         }
-
-        runningSystemCommand = false;
-
-        nativeCancel();
-
-        return rc;
-    }
-
-    private static boolean systemCommandOutputContainsPattern(final List<String> patternList) {
-        String string = systemCommandOutputReference.get().toString();
-        for (String pattern : patternList) {
-            if (string.contains(pattern)) {
-                return true;
-            }
-        }
-
-        return false;
     }
 
     /**
-     * Returns output of last executed system command.
+     * <p>Closes a previously created <code>FFmpeg</code> pipe.
      *
-     * @return output of last executed system command
+     * @param ffmpegPipePath full path of ffmpeg pipe
      */
-    static String getSystemCommandOutput() {
-        return systemCommandOutputReference.get().toString();
+    public static void closeFFmpegPipe(final String ffmpegPipePath) {
+        File file = new File(ffmpegPipePath);
+        if (file.exists()) {
+            file.delete();
+        }
+    }
+
+    /**
+     * Returns the list of camera ids supported.
+     *
+     * @param context application context
+     * @return the list of camera ids supported or an empty list if no supported camera is found
+     */
+    public static List<String> getSupportedCameraIds(final Context context) {
+        final List<String> detectedCameraIdList = new ArrayList<>();
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            detectedCameraIdList.addAll(CameraSupport.extractSupportedCameraIds(context));
+        }
+
+        return detectedCameraIdList;
+    }
+
+    /**
+     * <p>Returns FFmpeg version bundled within the library.
+     *
+     * @return FFmpeg version
+     */
+    public static String getFFmpegVersion() {
+        return getNativeFFmpegVersion();
+    }
+
+    /**
+     * <p>Returns MobileFFmpeg library version.
+     *
+     * @return MobileFFmpeg version
+     */
+    public static String getVersion() {
+        if (AbiDetect.isNativeLTSBuild()) {
+            return String.format("%s-lts", getNativeVersion());
+        } else {
+            return getNativeVersion();
+        }
+    }
+
+    /**
+     * <p>Returns whether MobileFFmpeg release is a long term release or not.
+     *
+     * @return YES or NO
+     */
+    public static boolean isLTSBuild() {
+        return AbiDetect.isNativeLTSBuild();
+    }
+
+    /**
+     * <p>Returns MobileFFmpeg library build date.
+     *
+     * @return MobileFFmpeg library build date
+     */
+    public static String getBuildDate() {
+        return getNativeBuildDate();
+    }
+
+    /**
+     * <p>Returns return code of last executed command.
+     *
+     * @return return code of last executed command
+     * @since 3.0
+     */
+    public static int getLastReturnCode() {
+        return lastReturnCode;
+    }
+
+    /**
+     * <p>Returns log output of last executed single FFmpeg/FFprobe command.
+     *
+     * <p>This method does not support executing multiple concurrent commands. If you execute
+     * multiple commands at the same time, this method will return output from all executions.
+     *
+     * <p>Please note that disabling redirection using {@link Config#disableRedirection()} method
+     * also disables this functionality.
+     *
+     * @return output of the last executed command
+     * @since 3.0
+     */
+    public static String getLastCommandOutput() {
+        String nativeLastCommandOutput = getNativeLastCommandOutput();
+        if (nativeLastCommandOutput != null) {
+
+            // REPLACING CH(13) WITH CH(10)
+            nativeLastCommandOutput = nativeLastCommandOutput.replace('\r', '\n');
+        }
+        return nativeLastCommandOutput;
+    }
+
+    /**
+     * <p>Prints the output of the last executed FFmpeg/FFprobe command to the Logcat at the
+     * specified priority.
+     *
+     * <p>This method does not support executing multiple concurrent commands. If you execute
+     * multiple commands at the same time, this method will print output from all executions.
+     *
+     * @param logPriority one of {@link Log#VERBOSE}, {@link Log#DEBUG}, {@link Log#INFO},
+     *                    {@link Log#WARN}, {@link Log#ERROR}, {@link Log#ASSERT}
+     * @since 4.3
+     */
+    public static void printLastCommandOutput(int logPriority) {
+        final int LOGGER_ENTRY_MAX_LEN = 4 * 1000;
+
+        String buffer = getLastCommandOutput();
+        do {
+            if (buffer.length() <= LOGGER_ENTRY_MAX_LEN) {
+                Log.println(logPriority, Config.TAG, buffer);
+                buffer = "";
+            } else {
+                final int index = buffer.substring(0, LOGGER_ENTRY_MAX_LEN).lastIndexOf('\n');
+                if (index < 0) {
+                    Log.println(logPriority, Config.TAG, buffer.substring(0, LOGGER_ENTRY_MAX_LEN));
+                    buffer = buffer.substring(LOGGER_ENTRY_MAX_LEN);
+                } else {
+                    Log.println(logPriority, Config.TAG, buffer.substring(0, index));
+                    buffer = buffer.substring(index);
+                }
+            }
+        } while (buffer.length() > 0);
+    }
+
+    /**
+     * Updates return code value for the last executed command.
+     *
+     * @param newLastReturnCode new last return code value
+     */
+    static void setLastReturnCode(int newLastReturnCode) {
+        lastReturnCode = newLastReturnCode;
     }
 
     /**
@@ -509,19 +639,53 @@ public class Config {
      * @param arguments FFmpeg command options/arguments as string array
      * @return zero on successful execution, 255 on user cancel and non-zero on error
      */
-    native static int nativeExecute(final String[] arguments);
+    native static int nativeFFmpegExecute(final String[] arguments);
 
     /**
-     * <p>Cancels an ongoing operation natively. This function does not wait for termination to
-     * complete and returns immediately.
+     * <p>Cancels an ongoing FFmpeg operation natively. This function does not wait for termination
+     * to complete and returns immediately.
      */
-    native static void nativeCancel();
+    native static void nativeFFmpegCancel();
 
     /**
-     * <p>Returns build configuration for <code>FFmpeg</code>.
+     * <p>Synchronously executes FFprobe natively with arguments provided.
      *
-     * @return build configuration string
+     * @param arguments FFprobe command options/arguments as string array
+     * @return zero on successful execution, 255 on user cancel and non-zero on error
      */
-    native static String getNativeBuildConf();
+    native static int nativeFFprobeExecute(final String[] arguments);
+
+    /**
+     * <p>Creates natively a new named pipe to use in <code>FFmpeg</code> operations.
+     *
+     * <p>Please note that creator is responsible of closing created pipes.
+     *
+     * @param ffmpegPipePath full path of ffmpeg pipe
+     * @return zero on successful creation, non-zero on error
+     */
+    native static int registerNewNativeFFmpegPipe(final String ffmpegPipePath);
+
+    /**
+     * <p>Returns MobileFFmpeg library build date natively.
+     *
+     * @return MobileFFmpeg library build date
+     */
+    native static String getNativeBuildDate();
+
+    /**
+     * <p>Sets an environment variable natively.
+     *
+     * @param variableName  environment variable name
+     * @param variableValue environment variable value
+     * @return zero on success, non-zero on error
+     */
+    public native static int setNativeEnvironmentVariable(final String variableName, final String variableValue);
+
+    /**
+     * <p>Returns log output of the last executed single command natively.
+     *
+     * @return output of the last executed single command
+     */
+    native static String getNativeLastCommandOutput();
 
 }

android/app/src/main/java/com/arthenica/mobileffmpeg/FFmpeg.java

@@ -19,15 +19,14 @@
 
 package com.arthenica.mobileffmpeg;
 
-import android.util.Log;
-
-import java.util.Arrays;
+import java.util.ArrayList;
+import java.util.List;
 
 /**
  * <p>Main class for FFmpeg operations. Provides {@link #execute(String...)} method to execute
  * FFmpeg commands.
  * <pre>
- *      int rc = FFmpeg.execute("-i", "file1.mp4", "-c:v", "libxvid", "file1.avi");
+ *      int rc = FFmpeg.execute("-i file1.mp4 -c:v libxvid file1.avi");
  *      Log.i(Config.TAG, String.format("Command execution %s.", (rc == 0?"completed successfully":"failed with rc=" + rc));
  * </pre>
  *
@@ -36,14 +35,6 @@ import java.util.Arrays;
  */
 public class FFmpeg {
 
-    public static final int RETURN_CODE_SUCCESS = 0;
-
-    public static final int RETURN_CODE_CANCEL = 255;
-
-    private static int lastReturnCode = 0;
-
-    private static StringBuffer lastCommandOutput = new StringBuffer();
-
     static {
         AbiDetect.class.getName();
         Config.class.getName();
@@ -55,37 +46,6 @@ public class FFmpeg {
     private FFmpeg() {
     }
 
-    /**
-     * <p>Appends given log output to the last command output.
-     *
-     * @param output log output
-     */
-    static void appendCommandOutput(final String output) {
-        lastCommandOutput.append(output);
-    }
-
-    /**
-     * <p>Returns FFmpeg version bundled within the library.
-     *
-     * @return FFmpeg version
-     */
-    public static String getFFmpegVersion() {
-        return Config.getNativeFFmpegVersion();
-    }
-
-    /**
-     * <p>Returns MobileFFmpeg library version.
-     *
-     * @return MobileFFmpeg version
-     */
-    public static String getVersion() {
-        if (AbiDetect.isNativeLTSBuild()) {
-            return String.format("%s-lts", Config.getNativeVersion());
-        } else {
-            return Config.getNativeVersion();
-        }
-    }
-
     /**
      * <p>Synchronously executes FFmpeg with arguments provided.
      *
@@ -93,21 +53,24 @@ public class FFmpeg {
      * @return zero on successful execution, 255 on user cancel and non-zero on error
      */
     public static int execute(final String[] arguments) {
-        lastCommandOutput = new StringBuffer();
+        final int lastReturnCode = Config.nativeFFmpegExecute(arguments);
 
-        lastReturnCode = Config.nativeExecute(arguments);
+        Config.setLastReturnCode(lastReturnCode);
 
         return lastReturnCode;
     }
 
     /**
      * <p>Synchronously executes FFmpeg command provided. Command is split into arguments using
-     * provided delimiter.
+     * provided delimiter character.
      *
      * @param command   FFmpeg command
-     * @param delimiter delimiter used between arguments
+     * @param delimiter delimiter used to split arguments
      * @return zero on successful execution, 255 on user cancel and non-zero on error
      * @since 3.0
+     * @deprecated argument splitting mechanism used in this method is pretty simple and prone to
+     * errors. Consider using a more advanced method like {@link #execute(String)} or
+     * {@link #execute(String[])}
      */
     public static int execute(final String command, final String delimiter) {
         return execute((command == null) ? new String[]{""} : command.split((delimiter == null) ? " " : delimiter));
@@ -115,13 +78,14 @@ public class FFmpeg {
 
     /**
      * <p>Synchronously executes FFmpeg command provided. Space character is used to split command
-     * into arguments.
+     * into arguments. You can use single and double quote characters to specify arguments inside
+     * your command.
      *
      * @param command FFmpeg command
      * @return zero on successful execution, 255 on user cancel and non-zero on error
      */
     public static int execute(final String command) {
-        return execute(command, " ");
+        return execute(parseArguments(command));
     }
 
     /**
@@ -129,67 +93,64 @@ public class FFmpeg {
      * returns immediately.
      */
     public static void cancel() {
-        Config.nativeCancel();
+        Config.nativeFFmpegCancel();
     }
 
     /**
-     * <p>Returns return code of last executed command.
+     * <p>Parses the given command into arguments.
      *
-     * @return return code of last executed command
-     * @since 3.0
+     * @param command string command
+     * @return array of arguments
      */
-    public static int getLastReturnCode() {
-        return lastReturnCode;
-    }
+    static String[] parseArguments(final String command) {
+        final List<String> argumentList = new ArrayList<>();
+        StringBuilder currentArgument = new StringBuilder();
 
-    /**
-     * <p>Returns log output of last executed command. Please note that disabling redirection using
-     * {@link Config#disableRedirection()} method also disables this functionality.
-     *
-     * @return output of last executed command
-     * @since 3.0
-     */
-    public static String getLastCommandOutput() {
-        return lastCommandOutput.toString();
-    }
+        boolean singleQuoteStarted = false;
+        boolean doubleQuoteStarted = false;
 
-    /**
-     * <p>Returns media information for given file.
-     *
-     * @param path path or uri of media file
-     * @return media information
-     * @since 3.0
-     */
-    public static MediaInformation getMediaInformation(final String path) {
-        return getMediaInformation(path, 10000L);
-    }
+        for (int i = 0; i < command.length(); i++) {
+            final Character previousChar;
+            if (i > 0) {
+                previousChar = command.charAt(i - 1);
+            } else {
+                previousChar = null;
+            }
+            final char currentChar = command.charAt(i);
 
-    /**
-     * <p>Returns media information for given file.
-     *
-     * @param path    path or uri of media file
-     * @param timeout complete timeout
-     * @return media information
-     * @since 3.0
-     */
-    public static MediaInformation getMediaInformation(final String path, final Long timeout) {
-        int rc = Config.systemExecute(new String[]{"-v", "info", "-hide_banner", "-i", path, "-f", "null", "-"}, Arrays.asList("Press [q] to stop, [?] for help", "No such file or directory", "Input/output error", "Conversion failed"), timeout);
-
-        if (rc == 0) {
-            return MediaInformationParser.from(Config.getSystemCommandOutput());
-        } else {
-            Log.i(Config.TAG, Config.getSystemCommandOutput());
-            return null;
+            if (currentChar == ' ') {
+                if (singleQuoteStarted || doubleQuoteStarted) {
+                    currentArgument.append(currentChar);
+                } else if (currentArgument.length() > 0) {
+                    argumentList.add(currentArgument.toString());
+                    currentArgument = new StringBuilder();
+                }
+            } else if (currentChar == '\'' && (previousChar == null || previousChar != '\\')) {
+                if (singleQuoteStarted) {
+                    singleQuoteStarted = false;
+                } else if (doubleQuoteStarted) {
+                    currentArgument.append(currentChar);
+                } else {
+                    singleQuoteStarted = true;
+                }
+            } else if (currentChar == '\"' && (previousChar == null || previousChar != '\\')) {
+                if (doubleQuoteStarted) {
+                    doubleQuoteStarted = false;
+                } else if (singleQuoteStarted) {
+                    currentArgument.append(currentChar);
+                } else {
+                    doubleQuoteStarted = true;
+                }
+            } else {
+                currentArgument.append(currentChar);
+            }
         }
-    }
 
-    /**
-     * <p>Returns whether MobileFFmpeg release is a long term release or not.
-     *
-     * @return YES or NO
-     */
-    public static boolean isLTSBuild() {
-        return AbiDetect.isNativeLTSBuild();
+        if (currentArgument.length() > 0) {
+            argumentList.add(currentArgument.toString());
+        }
+
+        return argumentList.toArray(new String[0]);
     }
 
 }

android/app/src/main/java/com/arthenica/mobileffmpeg/FFprobe.java

@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2020 Taner Sener
+ *
+ * This file is part of MobileFFmpeg.
+ *
+ * MobileFFmpeg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * MobileFFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.arthenica.mobileffmpeg;
+
+import android.util.Log;
+
+/**
+ * <p>Main class for FFprobe operations. Provides {@link #execute(String...)} method to execute
+ * FFprobe commands.
+ * <pre>
+ *      int rc = FFprobe.execute("-hide_banner -v error -show_entries format=size -of default=noprint_wrappers=1 file1.mp4");
+ *      Log.i(Config.TAG, String.format("Command execution %s.", (rc == 0?"completed successfully":"failed with rc=" + rc));
+ * </pre>
+ *
+ * @author Taner Sener
+ * @since v4.3.1
+ */
+public class FFprobe {
+
+    static {
+        AbiDetect.class.getName();
+        Config.class.getName();
+    }
+
+    /**
+     * Default constructor hidden.
+     */
+    private FFprobe() {
+    }
+
+    /**
+     * <p>Synchronously executes FFprobe with arguments provided.
+     *
+     * @param arguments FFprobe command options/arguments as string array
+     * @return zero on successful execution, 255 on user cancel and non-zero on error
+     */
+    public static int execute(final String[] arguments) {
+        final int lastReturnCode = Config.nativeFFprobeExecute(arguments);
+
+        Config.setLastReturnCode(lastReturnCode);
+
+        return lastReturnCode;
+    }
+
+    /**
+     * <p>Synchronously executes FFprobe command provided. Space character is used to split command
+     * into arguments. You can use single and double quote characters to specify arguments inside
+     * your command.
+     *
+     * @param command FFprobe command
+     * @return zero on successful execution, 255 on user cancel and non-zero on error
+     */
+    public static int execute(final String command) {
+        return execute(FFmpeg.parseArguments(command));
+    }
+
+    /**
+     * <p>Returns media information for given file.
+     *
+     * <p>This method does not support executing multiple concurrent operations. If you execute
+     * multiple operations (execute or getMediaInformation) at the same time, the response of this
+     * method is not predictable.
+     *
+     * @param path path or uri of media file
+     * @return media information
+     * @since 3.0
+     */
+    public static MediaInformation getMediaInformation(final String path) {
+        final int rc = execute(new String[]{"-v", "info", "-hide_banner", "-i", path});
+
+        if (rc == 0) {
+            return MediaInformationParser.from(Config.getLastCommandOutput());
+        } else {
+            Log.i(Config.TAG, Config.getLastCommandOutput());
+            return null;
+        }
+    }
+
+    /**
+     * <p>Returns media information for given file.
+     *
+     * <p>This method does not support executing multiple concurrent operations. If you execute
+     * multiple operations (execute or getMediaInformation) at the same time, the response of this
+     * method is not predictable.
+     *
+     * @param path    path or uri of media file
+     * @param timeout complete timeout
+     * @return media information
+     * @since 3.0
+     * @deprecated this method is deprecated since v4.3.1. You can still use this method but
+     * <code>timeout</code> parameter is not effective anymore.
+     */
+    public static MediaInformation getMediaInformation(final String path, final Long timeout) {
+        return getMediaInformation(path);
+    }
+
+}

android/app/src/main/java/com/arthenica/mobileffmpeg/Level.java

@@ -27,6 +27,14 @@ package com.arthenica.mobileffmpeg;
  */
 public enum Level {
 
+    /**
+     * This log level is defined by MobileFFmpeg. It is used to specify logs printed to stderr by
+     * ffmpeg. Logs that has this level are not filtered and always redirected.
+     *
+     * @since 4.3.1
+     */
+    AV_LOG_STDERR(-16),
+
     /**
      * Print no output.
      */
@@ -85,7 +93,9 @@ public enum Level {
      * @return enumeration defined by value
      */
     public static Level from(final int value) {
-        if (value == AV_LOG_QUIET.getValue()) {
+        if (value == AV_LOG_STDERR.getValue()) {
+            return AV_LOG_STDERR;
+        } else if (value == AV_LOG_QUIET.getValue()) {
             return AV_LOG_QUIET;
         } else if (value == AV_LOG_PANIC.getValue()) {
             return AV_LOG_PANIC;

android/app/src/main/java/com/arthenica/mobileffmpeg/MediaInformationParser.java

@@ -67,12 +67,14 @@ public class MediaInformationParser {
         if (rawCommandOutput != null) {
             final String[] split = rawCommandOutput.split("\n");
             boolean metadata = false;
+            boolean sidedata = false;
             StreamInformation lastCreatedStream = null;
             final StringBuilder rawInformation = new StringBuilder();
 
             for (final String outputLine : split) {
                 if (outputLine.startsWith("[")) {
                     metadata = false;
+                    sidedata = false;
                     continue;
                 }
 
@@ -80,23 +82,30 @@ public class MediaInformationParser {
 
                 if (trimmedLine.startsWith("Input")) {
                     metadata = false;
+                    sidedata = false;
                     lastCreatedStream = null;
                     Pair<String, String> pair = parseInputBlock(trimmedLine);
                     mediaInformation.setFormat(pair.getFirst());
                     mediaInformation.setPath(pair.getSecond());
                 } else if (trimmedLine.startsWith("Duration")) {
                     metadata = false;
+                    sidedata = false;
                     lastCreatedStream = null;
                     Trio<Long, Long, Long> trio = parseDurationBlock(trimmedLine);
                     mediaInformation.setDuration(trio.getFirst());
                     mediaInformation.setStartTime(trio.getSecond());
                     mediaInformation.setBitrate(trio.getThird());
-                } else if (trimmedLine.startsWith("Metadata")) {
+                } else if (trimmedLine.toLowerCase(Locale.ENGLISH).startsWith("metadata")) {
+                    sidedata = false;
                     metadata = true;
+                } else if (trimmedLine.toLowerCase(Locale.ENGLISH).startsWith("side data")) {
+                    metadata = false;
+                    sidedata = true;
                 } else if (trimmedLine.startsWith("Stream mapping") || trimmedLine.startsWith("Press [q] to stop") || trimmedLine.startsWith("Output")) {
                     break;
                 } else if (trimmedLine.startsWith("Stream")) {
                     metadata = false;
+                    sidedata = false;
                     lastCreatedStream = MediaInformationParser.parseStreamBlock(trimmedLine);
                     mediaInformation.addStream(lastCreatedStream);
                 } else if (metadata) {
@@ -109,6 +118,14 @@ public class MediaInformationParser {
                             mediaInformation.addMetadata(pair.getFirst(), pair.getSecond());
                         }
                     }
+                } else if (sidedata) {
+                    Pair<String, String> pair = parseMetadataBlock(trimmedLine);
+
+                    if (pair.getFirst() != null && pair.getSecond() != null) {
+                        if (lastCreatedStream != null) {
+                            lastCreatedStream.addSidedata(pair.getFirst(), pair.getSecond());
+                        }
+                    }
                 }
 
                 rawInformation.append(outputLine);
@@ -189,14 +206,14 @@ public class MediaInformationParser {
                             pEnd = count(part2, ")");
                         }
 
-                        streamInformation.setFullFormat(part2.toLowerCase().trim());
-                        streamInformation.setFormat(part2.replaceAll("\\(.*\\)", "").toLowerCase().trim());
+                        streamInformation.setFullFormat(part2.toLowerCase(Locale.getDefault()).trim());
+                        streamInformation.setFormat(part2.replaceAll("\\(.*\\)", "").toLowerCase(Locale.getDefault()).trim());
                     }
 
                     lastUsedPart++;
                     String videoDimensionPart = safeGet(parts, lastUsedPart);
                     if (videoDimensionPart != null) {
-                        String videoLayout = videoDimensionPart.toLowerCase().trim();
+                        String videoLayout = videoDimensionPart.toLowerCase(Locale.getDefault()).trim();
                         Pair<Long, Long> dimensions = parseVideoDimensions(videoLayout);
                         streamInformation.setWidth(dimensions.getFirst());
                         streamInformation.setHeight(dimensions.getSecond());
@@ -205,7 +222,7 @@ public class MediaInformationParser {
                     }
 
                     for (int i = lastUsedPart + 1; i < parts.length; i++) {
-                        String part = parts[i].replaceAll("\\(.*\\)", "").toLowerCase();
+                        String part = parts[i].replaceAll("\\(.*\\)", "").toLowerCase(Locale.getDefault());
 
                         if (part.contains("kb/s")) {
                             streamInformation.setBitrate(toLongObject(part.replaceAll("kb/s", "").trim()));
@@ -219,19 +236,22 @@ public class MediaInformationParser {
                             streamInformation.setCodecTimeBase(part.replaceAll("tbc", "").trim());
                         }
                     }
-                }
-                if ("audio".equals(type)) {
+                } else if ("audio".equals(type)) {
                     if (part2 != null) {
                         streamInformation.setSampleRate(parseAudioStreamSampleRate(part2));
                     }
                     if (part3 != null) {
-                        streamInformation.setChannelLayout(part3.toLowerCase().trim());
+                        streamInformation.setChannelLayout(part3.toLowerCase(Locale.getDefault()).trim());
                     }
                     if (part4 != null) {
-                        streamInformation.setSampleFormat(part4.toLowerCase().trim());
+                        streamInformation.setSampleFormat(part4.toLowerCase(Locale.getDefault()).trim());
                     }
                     if (part5 != null) {
-                        streamInformation.setBitrate(toLongObject(part5.toLowerCase().replaceAll("\\(.*\\)", "").replaceAll("kb/s", "").trim()));
+                        streamInformation.setBitrate(toLongObject(part5.toLowerCase(Locale.getDefault()).replaceAll("\\(.*\\)", "").replaceAll("kb/s", "").trim()));
+                    }
+                } else if ("data".equals(type)) {
+                    if (part2 != null) {
+                        streamInformation.setBitrate(toLongObject(part2.toLowerCase(Locale.getDefault()).replaceAll("\\(.*\\)", "").replaceAll("kb/s", "").trim()));
                     }
                 }
             }
@@ -245,7 +265,7 @@ public class MediaInformationParser {
         Long height = null;
 
         if (input != null) {
-            final String[] dimensions = input.toLowerCase().replaceAll("\\[.*\\]", "").trim().split("x");
+            final String[] dimensions = input.toLowerCase(Locale.getDefault()).replaceAll("\\[.*\\]", "").trim().split("x");
             width = toLongObject(safeGet(dimensions, 0));
             height = toLongObject(safeGet(dimensions, 1));
         }
@@ -257,7 +277,7 @@ public class MediaInformationParser {
         if (input != null) {
             String[] parts = input.replaceAll("\\[", "").replaceAll("\\]", "").split(" ");
             for (int i = 0; i < parts.length; i++) {
-                if (parts[i].toLowerCase().equals("sar")) {
+                if (parts[i].toLowerCase(Locale.getDefault()).equals("sar")) {
                     return safeGet(parts, i + 1);
                 }
             }
@@ -270,7 +290,7 @@ public class MediaInformationParser {
         if (input != null) {
             String[] parts = input.replaceAll("\\[", "").replaceAll("\\]", "").split(" ");
             for (int i = 0; i < parts.length; i++) {
-                if (parts[i].toLowerCase().equals("dar")) {
+                if (parts[i].toLowerCase(Locale.getDefault()).equals("dar")) {
                     return safeGet(parts, i + 1);
                 }
             }
@@ -284,7 +304,7 @@ public class MediaInformationParser {
             boolean khz = false;
             boolean mhz = false;
 
-            String lowerCase = input.toLowerCase();
+            String lowerCase = input.toLowerCase(Locale.getDefault());
             if (lowerCase.contains("khz")) {
                 khz = true;
             }
@@ -312,10 +332,12 @@ public class MediaInformationParser {
 
     static String parseStreamType(final String input) {
         if (input != null) {
-            if (input.toLowerCase().contains("audio:")) {
+            if (input.toLowerCase(Locale.getDefault()).contains("audio:")) {
                 return "audio";
-            } else if (input.toLowerCase().contains("video:")) {
+            } else if (input.toLowerCase(Locale.getDefault()).contains("video:")) {
                 return "video";
+            } else if (input.toLowerCase(Locale.getDefault()).contains("data:")) {
+                return "data";
             }
         }
 
@@ -324,10 +346,11 @@ public class MediaInformationParser {
 
     static String parseStreamCodec(final String input) {
         if (input != null) {
-            return input.toLowerCase()
+            return input.toLowerCase(Locale.getDefault())
                     .replaceAll("\\(.*\\)", "")
                     .replaceAll("video:", "")
                     .replaceAll("audio:", "")
+                    .replaceAll("data:", "")
                     .trim();
         }
 
@@ -336,9 +359,10 @@ public class MediaInformationParser {
 
     static String parseStreamFullCodec(final String input) {
         if (input != null) {
-            return input.toLowerCase()
+            return input.toLowerCase(Locale.getDefault())
                     .replaceAll("video:", "")
                     .replaceAll("audio:", "")
+                    .replaceAll("data:", "")
                     .trim();
         }
 

android/app/src/main/java/com/arthenica/mobileffmpeg/Packages.java

@@ -52,11 +52,15 @@ class Packages {
         supportedExternalLibraries.add("libwebp");
         supportedExternalLibraries.add("libxml2");
         supportedExternalLibraries.add("opencore-amr");
+        supportedExternalLibraries.add("openh264");
         supportedExternalLibraries.add("opus");
+        supportedExternalLibraries.add("rubberband");
+        supportedExternalLibraries.add("sdl2");
         supportedExternalLibraries.add("shine");
         supportedExternalLibraries.add("snappy");
         supportedExternalLibraries.add("soxr");
         supportedExternalLibraries.add("speex");
+        supportedExternalLibraries.add("tesseract");
         supportedExternalLibraries.add("twolame");
         supportedExternalLibraries.add("wavpack");
         supportedExternalLibraries.add("x264");
@@ -70,7 +74,7 @@ class Packages {
      * @return enabled external libraries
      */
     static List<String> getExternalLibraries() {
-        final String buildConfiguration = Config.getNativeBuildConf();
+        final String buildConfiguration = AbiDetect.getNativeBuildConf();
 
         final List<String> enabledLibraryList = new ArrayList<>();
         for (String supportedExternalLibrary : supportedExternalLibraries) {
@@ -97,7 +101,6 @@ class Packages {
         final boolean gnutls = externalLibraryList.contains("gnutls");
         final boolean xvid = externalLibraryList.contains("xvid");
 
-        boolean min = false;
         boolean minGpl = false;
         boolean https = false;
         boolean httpsGpl = false;
@@ -125,8 +128,6 @@ class Packages {
         } else {
             if (gnutls) {
                 https = true;
-            } else {
-                min = true;
             }
         }
 
@@ -264,7 +265,11 @@ class Packages {
             }
         }
 
-        return "min";
+        if (externalLibraryList.size() == 0) {
+            return "min";
+        } else {
+            return "custom";
+        }
     }
 
 }

android/app/src/main/java/com/arthenica/mobileffmpeg/StreamInformation.java

@@ -84,8 +84,14 @@ public class StreamInformation {
      */
     private final Map<String, String> metadata;
 
+    /**
+     * Side data map
+     */
+    private final Map<String, String> sidedata;
+
     public StreamInformation() {
         this.metadata = new HashMap<>();
+        this.sidedata = new HashMap<>();
     }
 
     /**
@@ -422,6 +428,16 @@ public class StreamInformation {
         this.metadata.put(key, value);
     }
 
+    /**
+     * Retrieves metadata value associated with this key.
+     *
+     * @param key metadata key
+     * @return metadata value associated with this key
+     */
+    public String getMetadata(String key) {
+        return this.metadata.get(key);
+    }
+
     /**
      * Returns all metadata entries.
      *
@@ -431,4 +447,33 @@ public class StreamInformation {
         return this.metadata.entrySet();
     }
 
+    /**
+     * Adds side data.
+     *
+     * @param key side data key
+     * @param value side data value
+     */
+    public void addSidedata(String key, String value) {
+        this.sidedata.put(key, value);
+    }
+
+    /**
+     * Retrieves side data value associated with this key.
+     *
+     * @param key side data key
+     * @return side data value associated with this key
+     */
+    public String getSidedata(String key) {
+        return this.sidedata.get(key);
+    }
+
+    /**
+     * Returns all side data entries.
+     *
+     * @return set of site data entries
+     */
+    public Set<Map.Entry<String, String>> getSidedataEntries() {
+        return this.sidedata.entrySet();
+    }
+
 }

android/app/src/main/java/com/arthenica/mobileffmpeg/util/AsyncSingleFFmpegExecuteTask.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2018-2019 Taner Sener
+ *
+ * This file is part of MobileFFmpeg.
+ *
+ * MobileFFmpeg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * MobileFFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.arthenica.mobileffmpeg.util;
+
+import android.os.AsyncTask;
+
+import com.arthenica.mobileffmpeg.Config;
+import com.arthenica.mobileffmpeg.FFmpeg;
+
+public class AsyncSingleFFmpegExecuteTask extends AsyncTask<String, Integer, Integer> {
+    private final String command;
+    private final SingleExecuteCallback singleExecuteCallback;
+
+    public AsyncSingleFFmpegExecuteTask(final String command, final SingleExecuteCallback singleExecuteCallback) {
+        this.command = command;
+        this.singleExecuteCallback = singleExecuteCallback;
+    }
+
+    @Override
+    protected Integer doInBackground(final String... arguments) {
+        return FFmpeg.execute(command);
+    }
+
+    @Override
+    protected void onPostExecute(final Integer rc) {
+        if (singleExecuteCallback != null) {
+            singleExecuteCallback.apply(rc, Config.getLastCommandOutput());
+        }
+    }
+
+}

android/app/src/main/java/com/arthenica/mobileffmpeg/util/AsyncSingleFFprobeExecuteTask.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2018-2019 Taner Sener
+ *
+ * This file is part of MobileFFmpeg.
+ *
+ * MobileFFmpeg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * MobileFFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.arthenica.mobileffmpeg.util;
+
+import android.os.AsyncTask;
+
+import com.arthenica.mobileffmpeg.Config;
+import com.arthenica.mobileffmpeg.FFprobe;
+
+public class AsyncSingleFFprobeExecuteTask extends AsyncTask<String, Integer, Integer> {
+    private final String command;
+    private final SingleExecuteCallback singleExecuteCallback;
+
+    public AsyncSingleFFprobeExecuteTask(final String command, final SingleExecuteCallback singleExecuteCallback) {
+        this.command = command;
+        this.singleExecuteCallback = singleExecuteCallback;
+    }
+
+    @Override
+    protected Integer doInBackground(final String... arguments) {
+        return FFprobe.execute(command);
+    }
+
+    @Override
+    protected void onPostExecute(final Integer rc) {
+        if (singleExecuteCallback != null) {
+            singleExecuteCallback.apply(rc, Config.getLastCommandOutput());
+        }
+    }
+
+}

android/app/src/main/java/com/arthenica/mobileffmpeg/util/AsyncSingleGetMediaInformationTask.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2018-2019 Taner Sener
+ *
+ * This file is part of MobileFFmpeg.
+ *
+ * MobileFFmpeg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * MobileFFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.arthenica.mobileffmpeg.util;
+
+import android.os.AsyncTask;
+
+import com.arthenica.mobileffmpeg.FFprobe;
+import com.arthenica.mobileffmpeg.MediaInformation;
+
+public class AsyncSingleGetMediaInformationTask extends AsyncTask<String, MediaInformation, MediaInformation> {
+    private final String path;
+    private final SingleGetMediaInformationCallback singleGetMediaInformationCallback;
+
+    public AsyncSingleGetMediaInformationTask(final String path, final SingleGetMediaInformationCallback singleGetMediaInformationCallback) {
+        this.path = path;
+        this.singleGetMediaInformationCallback = singleGetMediaInformationCallback;
+    }
+
+    @Override
+    protected MediaInformation doInBackground(final String... arguments) {
+        return FFprobe.getMediaInformation(path);
+    }
+
+    @Override
+    protected void onPostExecute(final MediaInformation mediaInformation) {
+        if (singleGetMediaInformationCallback != null) {
+            singleGetMediaInformationCallback.apply(mediaInformation);
+        }
+    }
+
+}

android/app/src/main/java/com/arthenica/mobileffmpeg/util/RunCallback.java

@@ -1,33 +0,0 @@
-/*
- * Copyright (c) 2018 Taner Sener
- *
- * This file is part of MobileFFmpeg.
- *
- * MobileFFmpeg is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * MobileFFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public License
- *  along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.arthenica.mobileffmpeg.util;
-
-/**
- * <p>Represents a callback function to receive run result.
- *
- * @author Taner Sener
- * @since v2.1
- */
-@FunctionalInterface
-public interface RunCallback {
-
-    void apply(final int returnCode);
-
-}

android/app/src/main/java/com/arthenica/mobileffmpeg/util/SingleExecuteCallback.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2018 Taner Sener
+ *
+ * This file is part of MobileFFmpeg.
+ *
+ * MobileFFmpeg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * MobileFFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.arthenica.mobileffmpeg.util;
+
+/**
+ * <p>Represents a callback function to receive a single execution result.
+ *
+ * @author Taner Sener
+ * @since v2.1
+ */
+@FunctionalInterface
+public interface SingleExecuteCallback {
+
+    void apply(int returnCode, String executeOutput);
+
+}

android/app/src/main/java/com/arthenica/mobileffmpeg/util/SingleGetMediaInformationCallback.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2018 Taner Sener
+ *
+ * This file is part of MobileFFmpeg.
+ *
+ * MobileFFmpeg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * MobileFFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.arthenica.mobileffmpeg.util;
+
+import com.arthenica.mobileffmpeg.MediaInformation;
+
+/**
+ * <p>Represents a callback function to receive a single getMediaInformation result.
+ *
+ * @author Taner Sener
+ */
+@FunctionalInterface
+public interface SingleGetMediaInformationCallback {
+
+    void apply(MediaInformation mediaInformation);
+
+}

android/app/src/main/res/values/colors.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="colorPrimary">#3F51B5</color>
-    <color name="colorPrimaryDark">#303F9F</color>
-    <color name="colorAccent">#FF4081</color>
-</resources>

android/app/src/main/res/values/strings.xml

@@ -1,3 +0,0 @@
-<resources>
-    <string name="app_name">MobileFFmpeg</string>
-</resources>

android/app/src/main/res/values/styles.xml

@@ -1,11 +0,0 @@
-<resources>
-
-    <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
-        <!-- Customize your theme here. -->
-        <item name="colorPrimary">@color/colorPrimary</item>
-        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
-        <item name="colorAccent">@color/colorAccent</item>
-    </style>
-
-</resources>

android/app/src/test/java/com/arthenica/mobileffmpeg/ConfigTest.java

@@ -19,8 +19,7 @@
 
 package com.arthenica.mobileffmpeg;
 
-import junit.framework.Assert;
-
+import org.junit.Assert;
 import org.junit.Test;
 
 import java.util.ArrayList;
@@ -138,7 +137,7 @@ public class ConfigTest {
         Collections.sort(enabledList);
 
         Assert.assertNotNull(enabledList);
-        Assert.assertTrue(enabledList.size() == 1);
+        Assert.assertEquals(1, enabledList.size());
     }
 
     @Test

android/app/src/test/java/com/arthenica/mobileffmpeg/FFmpegTest.java

@@ -22,6 +22,9 @@ package com.arthenica.mobileffmpeg;
 import org.junit.Assert;
 import org.junit.Test;
 
+import java.util.Map;
+import java.util.Set;
+
 /**
  * <p>Tests for {@link FFmpeg} class.
  */
@@ -298,6 +301,40 @@ public class FFmpegTest {
                     "frame=  813 fps=0.0 q=-0.0 Lsize=N/A time=00:00:33.01 bitrate=N/A speed= 234x    \n" +
                     "video:426kB audio:6190kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown";
 
+    private static final String MEDIA_INFORMATION_RECORDING =
+            "Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/mobile/Containers/Data/Application/845A06CD-8427-4D2D-A9A8-F7738063E220/Library/Caches/video.mov':\n" +
+                    "  Metadata:\n" +
+                    "    major_brand     : qt\n" +
+                    "    minor_version   : 0\n" +
+                    "    compatible_brands: qt\n" +
+                    "    creation_time   : 2019-04-18T09:53:38.000000Z\n" +
+                    "    com.apple.quicktime.location.ISO6709: +40.9761+029.0949+070.349/\n" +
+                    "    com.apple.quicktime.make: Apple\n" +
+                    "    com.apple.quicktime.model: iPhone 6\n" +
+                    "    com.apple.quicktime.software: 12.2\n" +
+                    "    com.apple.quicktime.creationdate: 2019-04-18T12:53:38+0300\n" +
+                    "  Duration: 00:00:02.30, start: 0.000000, bitrate: 16658 kb/s\n" +
+                    "    Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 16535 kb/s, 29.98 fps, 29.97 tbr, 600 tbn, 1200 tbc (default)\n" +
+                    "    Metadata:\n" +
+                    "      rotate          : 90\n" +
+                    "      creation_time   : 2019-04-18T09:53:38.000000Z\n" +
+                    "      handler_name    : Core Media Video\n" +
+                    "      encoder         : H.264\n" +
+                    "    Side data:\n" +
+                    "      displaymatrix: rotation of -90.00 degrees\n" +
+                    "    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 96 kb/s (default)\n" +
+                    "    Metadata:\n" +
+                    "      creation_time   : 2019-04-18T09:53:38.000000Z\n" +
+                    "      handler_name    : Core Media Audio\n" +
+                    "    Stream #0:2(und): Data: none (mebx / 0x7862656D), 0 kb/s (default)\n" +
+                    "    Metadata:\n" +
+                    "      creation_time   : 2019-04-18T09:53:38.000000Z\n" +
+                    "      handler_name    : Core Media Metadata\n" +
+                    "    Stream #0:3(und): Data: none (mebx / 0x7862656D), 0 kb/s (default)\n" +
+                    "    Metadata:\n" +
+                    "      creation_time   : 2019-04-18T09:53:38.000000Z\n" +
+                    "      handler_name    : Core Media Metadata\n";
+
     @Test
     public void mediaInformationMp3() {
         MediaInformation mediaInformation = MediaInformationParser.from(MEDIA_INFORMATION_MP3);
@@ -305,6 +342,17 @@ public class FFmpegTest {
         Assert.assertNotNull(mediaInformation);
         assertMediaInput(mediaInformation, "mp3", "beethoven_-_symphony_no_9.mp3");
         assertMediaDuration(mediaInformation, 213240L, 0L, 320L);
+
+        assertMetadata(mediaInformation, "comment", "");
+        assertMetadata(mediaInformation, "album", "Symphony No.9");
+        assertMetadata(mediaInformation, "compilation", "0");
+        assertMetadata(mediaInformation, "date", "-1");
+        assertMetadata(mediaInformation, "title", "Symphony No.9");
+        assertMetadata(mediaInformation, "artist", "Beethoven");
+        assertMetadata(mediaInformation, "album_artist", "Beethoven");
+        assertMetadata(mediaInformation, "track", "-1");
+        assertMetadata(mediaInformation, "lyrics-XXX", "");
+
         Assert.assertNotNull(mediaInformation.getStreams());
         Assert.assertEquals(1, mediaInformation.getStreams().size());
         assertAudioStream(mediaInformation.getStreams().get(0), 0L, "mp3", "mp3", 48000L, "stereo", "fltp", 320L);
@@ -341,9 +389,17 @@ public class FFmpegTest {
         Assert.assertNotNull(mediaInformation);
         assertMediaInput(mediaInformation, "mov,mp4,m4a,3gp,3g2,mj2", "transition_rotate.mp4");
         assertMediaDuration(mediaInformation, 15000L, 0L, 7764L);
+
+        assertMetadata(mediaInformation, "major_brand", "isom");
+        assertMetadata(mediaInformation, "minor_version", "512");
+        assertMetadata(mediaInformation, "compatible_brands", "isomiso2avc1mp41");
+        assertMetadata(mediaInformation, "encoder", "Lavf58.12.100");
+
         Assert.assertNotNull(mediaInformation.getStreams());
         Assert.assertEquals(1, mediaInformation.getStreams().size());
         assertVideoStream(mediaInformation.getStreams().get(0), 0L, "h264", "h264 (main) (avc1 / 0x31637661)", "yuv420p", "yuv420p", 1280L, 720L, "1:1", "16:9", 7762L, "25", "30", "15360", "60");
+
+        assertStreamMetadata(mediaInformation.getStreams().get(0), "handler_name", "VideoHandler");
     }
 
     @Test
@@ -377,11 +433,31 @@ public class FFmpegTest {
         Assert.assertNotNull(mediaInformation);
         assertMediaInput(mediaInformation, "mov,mp4,m4a,3gp,3g2,mj2", "http://distribution.bbb3d.renderfarming.net/video/mp4/bbb_sunflower_2160p_30fps_stereo_abl.mp4");
         assertMediaDuration(mediaInformation, 634530L, 0L, 10385L);
+
+        assertMetadata(mediaInformation, "major_brand", "isom");
+        assertMetadata(mediaInformation, "minor_version", "1");
+        assertMetadata(mediaInformation, "compatible_brands", "isomavc1");
+        assertMetadata(mediaInformation, "creation_time", "2013-12-16T17:21:55.000000Z");
+        assertMetadata(mediaInformation, "title", "Big Buck Bunny, Sunflower version");
+        assertMetadata(mediaInformation, "artist", "Blender Foundation 2008, Janus Bager Kristensen 2013");
+        assertMetadata(mediaInformation, "comment", "Creative Commons Attribution 3.0 - http://bbb3d.renderfarming.net");
+        assertMetadata(mediaInformation, "genre", "Animation");
+        assertMetadata(mediaInformation, "composer", "Sacha Goedegebure");
+
         Assert.assertNotNull(mediaInformation.getStreams());
         Assert.assertEquals(3, mediaInformation.getStreams().size());
         assertVideoStream(mediaInformation.getStreams().get(0), 0L, "h264", "h264 (high) (avc1 / 0x31637661)", "yuv420p", "yuv420p", 3840L, 4320L, "1:1", "8:9", 9902L, "30", "30", "30k", "60");
         assertAudioStream(mediaInformation.getStreams().get(1), 1L, "mp3", "mp3 (mp4a / 0x6134706d)", 48000L, "stereo", "fltp", 160L);
         assertAudioStream(mediaInformation.getStreams().get(2), 2L, "ac3", "ac3 (ac-3 / 0x332d6361)", 48000L, "5.1(side)", "fltp", 320L);
+
+        assertStreamMetadata(mediaInformation.getStreams().get(0), "creation_time", "2013-12-16T17:21:55.000000Z");
+        assertStreamMetadata(mediaInformation.getStreams().get(0), "handler_name", "GPAC ISO Video Handler");
+        assertStreamMetadata(mediaInformation.getStreams().get(1), "creation_time", "2013-12-16T17:21:58.000000Z");
+        assertStreamMetadata(mediaInformation.getStreams().get(1), "handler_name", "GPAC ISO Audio Handler");
+        assertStreamMetadata(mediaInformation.getStreams().get(2), "creation_time", "2013-12-16T17:21:58.000000Z");
+        assertStreamMetadata(mediaInformation.getStreams().get(2), "handler_name", "GPAC ISO Audio Handler");
+
+        assertStreamSidedata(mediaInformation.getStreams().get(2), "audio service type", "main");
     }
 
     @Test
@@ -391,11 +467,31 @@ public class FFmpegTest {
         Assert.assertNotNull(mediaInformation);
         assertMediaInput(mediaInformation, "mov,mp4,m4a,3gp,3g2,mj2", "http://distribution.bbb3d.renderfarming.net/video/mp4/bbb_sunflower_1080p_30fps_stereo_arcd.mp4");
         assertMediaDuration(mediaInformation, 634530L, 0L, 4474L);
+
+        assertMetadata(mediaInformation, "major_brand", "isom");
+        assertMetadata(mediaInformation, "minor_version", "1");
+        assertMetadata(mediaInformation, "compatible_brands", "isomavc1");
+        assertMetadata(mediaInformation, "creation_time", "2013-12-16T17:49:59.000000Z");
+        assertMetadata(mediaInformation, "title", "Big Buck Bunny, Sunflower version");
+        assertMetadata(mediaInformation, "artist", "Blender Foundation 2008, Janus Bager Kristensen 2013");
+        assertMetadata(mediaInformation, "comment", "Creative Commons Attribution 3.0 - http://bbb3d.renderfarming.net");
+        assertMetadata(mediaInformation, "genre", "Animation");
+        assertMetadata(mediaInformation, "composer", "Sacha Goedegebure");
+
         Assert.assertNotNull(mediaInformation.getStreams());
         Assert.assertEquals(3, mediaInformation.getStreams().size());
         assertVideoStream(mediaInformation.getStreams().get(0), 0L, "h264", "h264 (high) (avc1 / 0x31637661)", "yuv420p", "yuv420p", 1920L, 1080L, "1:1", "16:9", 3992L, "30", "30", "30k", "60");
         assertAudioStream(mediaInformation.getStreams().get(1), 1L, "mp3", "mp3 (mp4a / 0x6134706d)", 48000L, "stereo", "fltp", 160L);
         assertAudioStream(mediaInformation.getStreams().get(2), 2L, "ac3", "ac3 (ac-3 / 0x332d6361)", 48000L, "5.1(side)", "fltp", 320L);
+
+        assertStreamMetadata(mediaInformation.getStreams().get(0), "creation_time", "2013-12-16T17:49:59.000000Z");
+        assertStreamMetadata(mediaInformation.getStreams().get(0), "handler_name", "GPAC ISO Video Handler");
+        assertStreamMetadata(mediaInformation.getStreams().get(1), "creation_time", "2013-12-16T17:50:04.000000Z");
+        assertStreamMetadata(mediaInformation.getStreams().get(1), "handler_name", "GPAC ISO Audio Handler");
+        assertStreamMetadata(mediaInformation.getStreams().get(2), "creation_time", "2013-12-16T17:50:04.000000Z");
+        assertStreamMetadata(mediaInformation.getStreams().get(2), "handler_name", "GPAC ISO Audio Handler");
+
+        assertStreamSidedata(mediaInformation.getStreams().get(2), "audio service type", "main");
     }
 
     @Test
@@ -409,6 +505,165 @@ public class FFmpegTest {
         Assert.assertEquals(2, mediaInformation.getStreams().size());
         assertVideoStream(mediaInformation.getStreams().get(0), 0L, "theora", "theora", "yuv420p", "yuv420p(bt470bg/bt470bg/bt709)", 720L, 400L, null, null, null, "25", "25", "25", "25");
         assertAudioStream(mediaInformation.getStreams().get(1), 1L, "vorbis", "vorbis", 48000L, "stereo", "fltp", 80L);
+
+        assertStreamMetadata(mediaInformation.getStreams().get(0), "ENCODER", "ffmpeg2theora 0.19");
+        assertStreamMetadata(mediaInformation.getStreams().get(1), "ENCODER", "ffmpeg2theora 0.19");
+    }
+
+    @Test
+    public void setMediaInformationRecording() {
+        MediaInformation mediaInformation = MediaInformationParser.from(MEDIA_INFORMATION_RECORDING);
+
+        Assert.assertNotNull(mediaInformation);
+        assertMediaInput(mediaInformation, "mov,mp4,m4a,3gp,3g2,mj2", "/var/mobile/Containers/Data/Application/845A06CD-8427-4D2D-A9A8-F7738063E220/Library/Caches/video.mov");
+        assertMediaDuration(mediaInformation, 2300L, 0L, 16658L);
+
+        assertMetadata(mediaInformation, "major_brand", "qt");
+        assertMetadata(mediaInformation, "minor_version", "0");
+        assertMetadata(mediaInformation, "compatible_brands", "qt");
+        assertMetadata(mediaInformation, "creation_time", "2019-04-18T09:53:38.000000Z");
+        assertMetadata(mediaInformation, "com.apple.quicktime.location.ISO6709", "+40.9761+029.0949+070.349/");
+        assertMetadata(mediaInformation, "com.apple.quicktime.make", "Apple");
+        assertMetadata(mediaInformation, "com.apple.quicktime.model", "iPhone 6");
+        assertMetadata(mediaInformation, "com.apple.quicktime.software", "12.2");
+        assertMetadata(mediaInformation, "com.apple.quicktime.creationdate", "2019-04-18T12:53:38+0300");
+
+        Assert.assertNotNull(mediaInformation.getStreams());
+        Assert.assertEquals(4, mediaInformation.getStreams().size());
+        assertVideoStream(mediaInformation.getStreams().get(0), 0L, "h264", "h264 (avc1 / 0x31637661)", "yuv420p", "yuv420p(tv, bt709)", 1920L, 1080L, null, null, 16535L, "29.98", "29.97", "600", "1200");
+        assertAudioStream(mediaInformation.getStreams().get(1), 1L, "aac", "aac (mp4a / 0x6134706d)", 44100L, "mono", "fltp", 96L);
+        assertStream(mediaInformation.getStreams().get(2), 2L, "data", "none", "none (mebx / 0x7862656d)", 0L);
+        assertStream(mediaInformation.getStreams().get(3), 3L, "data", "none", "none (mebx / 0x7862656d)", 0L);
+
+        assertStreamMetadata(mediaInformation.getStreams().get(0), "rotate", "90");
+        assertStreamMetadata(mediaInformation.getStreams().get(0), "creation_time", "2019-04-18T09:53:38.000000Z");
+        assertStreamMetadata(mediaInformation.getStreams().get(0), "handler_name", "Core Media Video");
+        assertStreamMetadata(mediaInformation.getStreams().get(0), "encoder", "H.264");
+        assertStreamMetadata(mediaInformation.getStreams().get(1), "creation_time", "2019-04-18T09:53:38.000000Z");
+        assertStreamMetadata(mediaInformation.getStreams().get(1), "handler_name", "Core Media Audio");
+        assertStreamMetadata(mediaInformation.getStreams().get(2), "creation_time", "2019-04-18T09:53:38.000000Z");
+        assertStreamMetadata(mediaInformation.getStreams().get(2), "handler_name", "Core Media Metadata");
+        assertStreamMetadata(mediaInformation.getStreams().get(3), "creation_time", "2019-04-18T09:53:38.000000Z");
+        assertStreamMetadata(mediaInformation.getStreams().get(3), "handler_name", "Core Media Metadata");
+
+        assertStreamSidedata(mediaInformation.getStreams().get(0), "displaymatrix", "rotation of -90.00 degrees");
+    }
+
+    @Test
+    public void parseSimpleCommand() {
+        final String[] argumentArray = FFmpeg.parseArguments("-hide_banner -loop 1 -i file.jpg -filter_complex [0:v]setpts=PTS-STARTPTS[video] -map [video] -vsync 2 -async 1 video.mp4");
+
+        Assert.assertNotNull(argumentArray);
+        Assert.assertEquals(14, argumentArray.length);
+
+        Assert.assertEquals("-hide_banner", argumentArray[0]);
+        Assert.assertEquals("-loop", argumentArray[1]);
+        Assert.assertEquals("1", argumentArray[2]);
+        Assert.assertEquals("-i", argumentArray[3]);
+        Assert.assertEquals("file.jpg", argumentArray[4]);
+        Assert.assertEquals("-filter_complex", argumentArray[5]);
+        Assert.assertEquals("[0:v]setpts=PTS-STARTPTS[video]", argumentArray[6]);
+        Assert.assertEquals("-map", argumentArray[7]);
+        Assert.assertEquals("[video]", argumentArray[8]);
+        Assert.assertEquals("-vsync", argumentArray[9]);
+        Assert.assertEquals("2", argumentArray[10]);
+        Assert.assertEquals("-async", argumentArray[11]);
+        Assert.assertEquals("1", argumentArray[12]);
+        Assert.assertEquals("video.mp4", argumentArray[13]);
+    }
+
+    @Test
+    public void parseSingleQuotesInCommand() {
+        String[] argumentArray = FFmpeg.parseArguments("-loop 1 'file one.jpg'  -filter_complex  '[0:v]setpts=PTS-STARTPTS[video]'  -map  [video]  video.mp4 ");
+
+        Assert.assertNotNull(argumentArray);
+        Assert.assertEquals(8, argumentArray.length);
+
+        Assert.assertEquals("-loop", argumentArray[0]);
+        Assert.assertEquals("1", argumentArray[1]);
+        Assert.assertEquals("file one.jpg", argumentArray[2]);
+        Assert.assertEquals("-filter_complex", argumentArray[3]);
+        Assert.assertEquals("[0:v]setpts=PTS-STARTPTS[video]", argumentArray[4]);
+        Assert.assertEquals("-map", argumentArray[5]);
+        Assert.assertEquals("[video]", argumentArray[6]);
+        Assert.assertEquals("video.mp4", argumentArray[7]);
+    }
+
+    @Test
+    public void parseDoubleQuotesInCommand() {
+        String[] argumentArray = FFmpeg.parseArguments("-loop  1 \"file one.jpg\"   -filter_complex \"[0:v]setpts=PTS-STARTPTS[video]\"  -map  [video]  video.mp4 ");
+
+        Assert.assertNotNull(argumentArray);
+        Assert.assertEquals(8, argumentArray.length);
+
+        Assert.assertEquals("-loop", argumentArray[0]);
+        Assert.assertEquals("1", argumentArray[1]);
+        Assert.assertEquals("file one.jpg", argumentArray[2]);
+        Assert.assertEquals("-filter_complex", argumentArray[3]);
+        Assert.assertEquals("[0:v]setpts=PTS-STARTPTS[video]", argumentArray[4]);
+        Assert.assertEquals("-map", argumentArray[5]);
+        Assert.assertEquals("[video]", argumentArray[6]);
+        Assert.assertEquals("video.mp4", argumentArray[7]);
+
+        argumentArray = FFmpeg.parseArguments(" -i   file:///tmp/input.mp4 -vcodec libx264 -vf \"scale=1024:1024,pad=width=1024:height=1024:x=0:y=0:color=black\"  -acodec copy  -q:v 0  -q:a   0 video.mp4");
+
+        Assert.assertNotNull(argumentArray);
+        Assert.assertEquals(13, argumentArray.length);
+
+        Assert.assertEquals("-i", argumentArray[0]);
+        Assert.assertEquals("file:///tmp/input.mp4", argumentArray[1]);
+        Assert.assertEquals("-vcodec", argumentArray[2]);
+        Assert.assertEquals("libx264", argumentArray[3]);
+        Assert.assertEquals("-vf", argumentArray[4]);
+        Assert.assertEquals("scale=1024:1024,pad=width=1024:height=1024:x=0:y=0:color=black", argumentArray[5]);
+        Assert.assertEquals("-acodec", argumentArray[6]);
+        Assert.assertEquals("copy", argumentArray[7]);
+        Assert.assertEquals("-q:v", argumentArray[8]);
+        Assert.assertEquals("0", argumentArray[9]);
+        Assert.assertEquals("-q:a", argumentArray[10]);
+        Assert.assertEquals("0", argumentArray[11]);
+        Assert.assertEquals("video.mp4", argumentArray[12]);
+    }
+
+    @Test
+    public void parseDoubleQuotesAndEscapesInCommand() {
+        String[] argumentArray = FFmpeg.parseArguments("  -i   file:///tmp/input.mp4 -vf \"subtitles=file:///tmp/subtitles.srt:force_style=\'FontSize=16,PrimaryColour=&HFFFFFF&\'\" -vcodec libx264   -acodec copy  -q:v 0 -q:a  0  video.mp4");
+
+        Assert.assertNotNull(argumentArray);
+        Assert.assertEquals(13, argumentArray.length);
+
+        Assert.assertEquals("-i", argumentArray[0]);
+        Assert.assertEquals("file:///tmp/input.mp4", argumentArray[1]);
+        Assert.assertEquals("-vf", argumentArray[2]);
+        Assert.assertEquals("subtitles=file:///tmp/subtitles.srt:force_style='FontSize=16,PrimaryColour=&HFFFFFF&'", argumentArray[3]);
+        Assert.assertEquals("-vcodec", argumentArray[4]);
+        Assert.assertEquals("libx264", argumentArray[5]);
+        Assert.assertEquals("-acodec", argumentArray[6]);
+        Assert.assertEquals("copy", argumentArray[7]);
+        Assert.assertEquals("-q:v", argumentArray[8]);
+        Assert.assertEquals("0", argumentArray[9]);
+        Assert.assertEquals("-q:a", argumentArray[10]);
+        Assert.assertEquals("0", argumentArray[11]);
+        Assert.assertEquals("video.mp4", argumentArray[12]);
+
+        argumentArray = FFmpeg.parseArguments("  -i   file:///tmp/input.mp4 -vf \"subtitles=file:///tmp/subtitles.srt:force_style=\\\"FontSize=16,PrimaryColour=&HFFFFFF&\\\"\" -vcodec libx264   -acodec copy  -q:v 0 -q:a  0  video.mp4");
+
+        Assert.assertNotNull(argumentArray);
+        Assert.assertEquals(13, argumentArray.length);
+
+        Assert.assertEquals("-i", argumentArray[0]);
+        Assert.assertEquals("file:///tmp/input.mp4", argumentArray[1]);
+        Assert.assertEquals("-vf", argumentArray[2]);
+        Assert.assertEquals("subtitles=file:///tmp/subtitles.srt:force_style=\\\"FontSize=16,PrimaryColour=&HFFFFFF&\\\"", argumentArray[3]);
+        Assert.assertEquals("-vcodec", argumentArray[4]);
+        Assert.assertEquals("libx264", argumentArray[5]);
+        Assert.assertEquals("-acodec", argumentArray[6]);
+        Assert.assertEquals("copy", argumentArray[7]);
+        Assert.assertEquals("-q:v", argumentArray[8]);
+        Assert.assertEquals("0", argumentArray[9]);
+        Assert.assertEquals("-q:a", argumentArray[10]);
+        Assert.assertEquals("0", argumentArray[11]);
+        Assert.assertEquals("video.mp4", argumentArray[12]);
     }
 
     private void assertMediaInput(MediaInformation mediaInformation, String format, String path) {
@@ -422,11 +677,74 @@ public class FFmpegTest {
         Assert.assertEquals(bitrate, mediaInformation.getBitrate());
     }
 
+    private void assertMetadata(MediaInformation mediaInformation, String expectedKey, String expectedValue) {
+        Set<Map.Entry<String, String>> metadataEntries = mediaInformation.getMetadataEntries();
+        Assert.assertNotNull(metadataEntries);
+
+        for (Map.Entry<String, String> metadataEntry : metadataEntries) {
+            String key = metadataEntry.getKey();
+            String value = metadataEntry.getValue();
+
+            if (key.equals(expectedKey)) {
+                Assert.assertEquals(expectedValue, value);
+                return;
+            }
+        }
+
+        Assert.fail(expectedKey + " not found");
+    }
+
+    private void assertStreamMetadata(StreamInformation streamInformation, String expectedKey, String expectedValue) {
+        Set<Map.Entry<String, String>> metadataEntries = streamInformation.getMetadataEntries();
+        Assert.assertNotNull(metadataEntries);
+
+        for (Map.Entry<String, String> metadataEntry : metadataEntries) {
+            String key = metadataEntry.getKey();
+            String value = metadataEntry.getValue();
+
+            if (key.equals(expectedKey)) {
+                Assert.assertEquals(expectedValue, value);
+                return;
+            }
+        }
+
+        Assert.fail(expectedKey + " not found");
+    }
+
+    private void assertStreamSidedata(StreamInformation streamInformation, String expectedKey, String expectedValue) {
+        Set<Map.Entry<String, String>> sidedataEntries = streamInformation.getSidedataEntries();
+        Assert.assertNotNull(sidedataEntries);
+
+        for (Map.Entry<String, String> metadataEntry : sidedataEntries) {
+            String key = metadataEntry.getKey();
+            String value = metadataEntry.getValue();
+
+            if (key.equals(expectedKey)) {
+                Assert.assertEquals(expectedValue, value);
+                return;
+            }
+        }
+
+        Assert.fail(expectedKey + " not found");
+    }
+
+    private void assertStream(StreamInformation streamInformation, Long index, String type, String codec, String fullCodec, Long bitrate) {
+        Assert.assertEquals(index, streamInformation.getIndex());
+        Assert.assertEquals(type, streamInformation.getType());
+
+        Assert.assertEquals(codec, streamInformation.getCodec());
+        Assert.assertEquals(fullCodec, streamInformation.getFullCodec());
+
+        Assert.assertEquals(bitrate, streamInformation.getBitrate());
+    }
+
     private void assertAudioStream(StreamInformation streamInformation, Long index, String codec, String fullCodec, Long sampleRate, String channelLayout, String sampleFormat, Long bitrate) {
         Assert.assertEquals(index, streamInformation.getIndex());
         Assert.assertEquals("audio", streamInformation.getType());
+
         Assert.assertEquals(codec, streamInformation.getCodec());
         Assert.assertEquals(fullCodec, streamInformation.getFullCodec());
+
         Assert.assertEquals(sampleRate, streamInformation.getSampleRate());
         Assert.assertEquals(channelLayout, streamInformation.getChannelLayout());
         Assert.assertEquals(sampleFormat, streamInformation.getSampleFormat());
@@ -436,6 +754,7 @@ public class FFmpegTest {
     private void assertVideoStream(StreamInformation streamInformation, Long index, String codec, String fullCodec, String format, String fullFormat, Long width, Long height, String sar, String dar, Long bitrate, String averageFrameRate, String realFrameRate, String timeBase, String codecTimeBase) {
         Assert.assertEquals(index, streamInformation.getIndex());
         Assert.assertEquals("video", streamInformation.getType());
+
         Assert.assertEquals(codec, streamInformation.getCodec());
         Assert.assertEquals(fullCodec, streamInformation.getFullCodec());
 

android/app/src/test/java/com/arthenica/mobileffmpeg/MediaInformationTest.java

@@ -22,8 +22,7 @@ package com.arthenica.mobileffmpeg;
 import com.arthenica.mobileffmpeg.util.Pair;
 import com.arthenica.mobileffmpeg.util.Trio;
 
-import junit.framework.Assert;
-
+import org.junit.Assert;
 import org.junit.Test;
 
 public class MediaInformationTest {
@@ -82,16 +81,16 @@ public class MediaInformationTest {
 
     @Test
     public void parseVideoStreamDisplayAspectRatio() {
-        Assert.assertEquals(null, MediaInformationParser.parseVideoStreamDisplayAspectRatio(""));
-        Assert.assertEquals(null, MediaInformationParser.parseVideoStreamDisplayAspectRatio("544x184"));
+        Assert.assertNull(MediaInformationParser.parseVideoStreamDisplayAspectRatio(""));
+        Assert.assertNull(MediaInformationParser.parseVideoStreamDisplayAspectRatio("544x184"));
         Assert.assertEquals("640:427", MediaInformationParser.parseVideoStreamDisplayAspectRatio("2560x1708 [SAR 1:1 DAR 640:427]"));
         Assert.assertEquals("8:9", MediaInformationParser.parseVideoStreamDisplayAspectRatio("3840x4320 [SAR 1:1 DAR 8:9]"));
     }
 
     @Test
     public void parseVideoStreamSampleAspectRatio() {
-        Assert.assertEquals(null, MediaInformationParser.parseVideoStreamSampleAspectRatio(""));
-        Assert.assertEquals(null, MediaInformationParser.parseVideoStreamSampleAspectRatio("544x184"));
+        Assert.assertNull(MediaInformationParser.parseVideoStreamSampleAspectRatio(""));
+        Assert.assertNull(MediaInformationParser.parseVideoStreamSampleAspectRatio("544x184"));
         Assert.assertEquals("1:1", MediaInformationParser.parseVideoStreamSampleAspectRatio("2560x1708 [SAR 1:1 DAR 640:427]"));
         Assert.assertEquals("1:1", MediaInformationParser.parseVideoStreamSampleAspectRatio("3840x4320 [SAR 1:1 DAR 8:9]"));
     }

android/build.gradle

@@ -1,14 +1,12 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    
     repositories {
         google()
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.1'
-
+        classpath 'com.android.tools.build:gradle:3.5.3'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

android/gradle.properties

@@ -9,6 +9,8 @@
 
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
+android.enableJetifier=true
+android.useAndroidX=true
 org.gradle.jvmargs=-Xmx1536m
 
 # When configured, Gradle will run in incubating parallel mode.

android/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.0.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

android/gradlew

@@ -28,7 +28,7 @@ APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
+DEFAULT_JVM_OPTS='"-Xmx64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"

android/gradlew.bat

@@ -14,7 +14,7 @@ set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
+set DEFAULT_JVM_OPTS="-Xmx64m"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome

android/jni/.gitignore

@@ -1 +1,2 @@
 /Application.mk
+/Android.mk.tmp

android/jni/Android.mk

@@ -2,14 +2,17 @@ LOCAL_PATH := $(call my-dir)
 $(call import-add-path, $(LOCAL_PATH))
 
 MY_ARM_MODE := arm
+MY_ARM_NEON := false
 MY_PATH := ../app/src/main/cpp
 
 # DEFINE ARCH FLAGS
 ifeq ($(TARGET_ARCH_ABI), armeabi-v7a)
     MY_ARCH_FLAGS := ARM_V7A
+    MY_ARM_NEON := true
 endif
 ifeq ($(TARGET_ARCH_ABI), arm64-v8a)
     MY_ARCH_FLAGS := ARM64_V8A
+    MY_ARM_NEON := true
 endif
 ifeq ($(TARGET_ARCH_ABI), x86)
     MY_ARCH_FLAGS := X86
@@ -25,42 +28,33 @@ LOCAL_SRC_FILES := $(NDK_ROOT)/sources/android/cpufeatures/cpu-features.c
 LOCAL_CFLAGS := -Wall -Wextra -Werror
 LOCAL_EXPORT_C_INCLUDES := $(NDK_ROOT)/sources/android/cpufeatures
 LOCAL_EXPORT_LDLIBS := -ldl
+LOCAL_ARM_NEON := ${MY_ARM_NEON}
 include $(BUILD_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
 LOCAL_ARM_MODE := $(MY_ARM_MODE)
-LOCAL_MODULE := mobileffmpeg-abidetect
+LOCAL_MODULE := mobileffmpeg_abidetect
 LOCAL_SRC_FILES := $(MY_PATH)/mobileffmpeg_abidetect.c
 LOCAL_CFLAGS := -Wall -Wextra -Werror -Wno-unused-parameter -I${LOCAL_PATH}/../../prebuilt/android-$(TARGET_ARCH)/ffmpeg/include -I$(NDK_ROOT)/sources/android/cpufeatures -DMOBILE_FFMPEG_${MY_ARCH_FLAGS}
 LOCAL_LDLIBS := -llog -lz -landroid
 LOCAL_SHARED_LIBRARIES := cpufeatures
+LOCAL_ARM_NEON := ${MY_ARM_NEON}
 include $(BUILD_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
 LOCAL_ARM_MODE := $(MY_ARM_MODE)
 LOCAL_MODULE := mobileffmpeg
-LOCAL_SRC_FILES := $(MY_PATH)/mobileffmpeg.c $(MY_PATH)/fftools_cmdutils.c $(MY_PATH)/fftools_ffmpeg.c $(MY_PATH)/fftools_ffmpeg_opt.c $(MY_PATH)/fftools_ffmpeg_hw.c $(MY_PATH)/fftools_ffmpeg_filter.c
+ifeq ($(TARGET_PLATFORM),android-16)
+    LOCAL_SRC_FILES := $(MY_PATH)/mobileffmpeg.c $(MY_PATH)/mobileffprobe.c $(MY_PATH)/android_lts_support.c $(MY_PATH)/mobileffmpeg_exception.c $(MY_PATH)/fftools_cmdutils.c $(MY_PATH)/fftools_ffmpeg.c $(MY_PATH)/fftools_ffprobe.c $(MY_PATH)/fftools_ffmpeg_opt.c $(MY_PATH)/fftools_ffmpeg_hw.c $(MY_PATH)/fftools_ffmpeg_filter.c
+else ifeq ($(TARGET_PLATFORM),android-17)
+    LOCAL_SRC_FILES := $(MY_PATH)/mobileffmpeg.c $(MY_PATH)/mobileffprobe.c $(MY_PATH)/android_lts_support.c $(MY_PATH)/mobileffmpeg_exception.c $(MY_PATH)/fftools_cmdutils.c $(MY_PATH)/fftools_ffmpeg.c $(MY_PATH)/fftools_ffprobe.c $(MY_PATH)/fftools_ffmpeg_opt.c $(MY_PATH)/fftools_ffmpeg_hw.c $(MY_PATH)/fftools_ffmpeg_filter.c
+else
+    LOCAL_SRC_FILES := $(MY_PATH)/mobileffmpeg.c $(MY_PATH)/mobileffprobe.c $(MY_PATH)/mobileffmpeg_exception.c $(MY_PATH)/fftools_cmdutils.c $(MY_PATH)/fftools_ffmpeg.c $(MY_PATH)/fftools_ffprobe.c $(MY_PATH)/fftools_ffmpeg_opt.c $(MY_PATH)/fftools_ffmpeg_hw.c $(MY_PATH)/fftools_ffmpeg_filter.c
+endif
 LOCAL_CFLAGS := -Wall -Werror -Wno-unused-parameter -Wno-switch -Wno-sign-compare -I${LOCAL_PATH}/../../prebuilt/android-$(TARGET_ARCH)/ffmpeg/include
 LOCAL_LDLIBS := -llog -lz -landroid
 LOCAL_SHARED_LIBRARIES := c++_shared libavfilter libavformat libavcodec libavutil libswresample libavdevice libswscale
+LOCAL_ARM_NEON := ${MY_ARM_NEON}
 include $(BUILD_SHARED_LIBRARY)
 
-ifeq ($(TARGET_ARCH_ABI), armeabi-v7a)
-    ifeq ("$(shell test -e $(LOCAL_PATH)/../build/.neon && echo neon)","neon")
-
-        include $(CLEAR_VARS)
-        LOCAL_ARM_MODE := $(MY_ARM_MODE)
-        LOCAL_MODULE := mobileffmpeg-armv7a-neon
-        LOCAL_SRC_FILES := $(MY_PATH)/mobileffmpeg.c $(MY_PATH)/fftools_cmdutils.c $(MY_PATH)/fftools_ffmpeg.c $(MY_PATH)/fftools_ffmpeg_opt.c $(MY_PATH)/fftools_ffmpeg_hw.c $(MY_PATH)/fftools_ffmpeg_filter.c
-        LOCAL_CFLAGS := -Wall -Werror -Wno-unused-parameter -Wno-switch -Wno-sign-compare -I${LOCAL_PATH}/../../prebuilt/android-$(TARGET_ARCH)/ffmpeg/include
-        LOCAL_LDLIBS := -llog -lz -landroid
-        LOCAL_SHARED_LIBRARIES := c++_shared libavcodec-neon libavfilter-neon libswscale-neon libavformat libavutil libswresample libavdevice
-        LOCAL_ARM_NEON := true
-        include $(BUILD_SHARED_LIBRARY)
-
-        $(call import-module, ffmpeg/neon)
-
-    endif
-endif
-
 $(call import-module, ffmpeg)

android/jni/ffmpeg/neon/Android.mk

@@ -5,49 +5,49 @@ MY_FFMPEG_LIB := ../../../../prebuilt/android-$(TARGET_ARCH)/neon/ffmpeg/lib
 
 include $(CLEAR_VARS)
 LOCAL_ARM_MODE := $(MY_ARM_MODE)
-LOCAL_MODULE := libavcodec-neon
+LOCAL_MODULE := libavcodec_neon
 LOCAL_MODULE_FILENAME := $(LOCAL_MODULE)
 LOCAL_SRC_FILES := $(MY_FFMPEG_LIB)/libavcodec.so
 include $(PREBUILT_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
 LOCAL_ARM_MODE := $(MY_ARM_MODE)
-LOCAL_MODULE := libavfilter-neon
+LOCAL_MODULE := libavfilter_neon
 LOCAL_MODULE_FILENAME := $(LOCAL_MODULE)
 LOCAL_SRC_FILES := $(MY_FFMPEG_LIB)/libavfilter.so
 include $(PREBUILT_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
 LOCAL_ARM_MODE := $(MY_ARM_MODE)
-LOCAL_MODULE := libavdevice-neon
+LOCAL_MODULE := libavdevice_neon
 LOCAL_MODULE_FILENAME := $(LOCAL_MODULE)
 LOCAL_SRC_FILES := $(MY_FFMPEG_LIB)/libavdevice.so
 include $(PREBUILT_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
 LOCAL_ARM_MODE := $(MY_ARM_MODE)
-LOCAL_MODULE := libavformat-neon
+LOCAL_MODULE := libavformat_neon
 LOCAL_MODULE_FILENAME := $(LOCAL_MODULE)
 LOCAL_SRC_FILES := $(MY_FFMPEG_LIB)/libavformat.so
 include $(PREBUILT_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
 LOCAL_ARM_MODE := $(MY_ARM_MODE)
-LOCAL_MODULE := libavutil-neon
+LOCAL_MODULE := libavutil_neon
 LOCAL_MODULE_FILENAME := $(LOCAL_MODULE)
 LOCAL_SRC_FILES := $(MY_FFMPEG_LIB)/libavutil.so
 include $(PREBUILT_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
 LOCAL_ARM_MODE := $(MY_ARM_MODE)
-LOCAL_MODULE := libswresample-neon
+LOCAL_MODULE := libswresample_neon
 LOCAL_MODULE_FILENAME := $(LOCAL_MODULE)
 LOCAL_SRC_FILES := $(MY_FFMPEG_LIB)/libswresample.so
 include $(PREBUILT_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
 LOCAL_ARM_MODE := $(MY_ARM_MODE)
-LOCAL_MODULE := libswscale-neon
+LOCAL_MODULE := libswscale_neon
 LOCAL_MODULE_FILENAME := $(LOCAL_MODULE)
 LOCAL_SRC_FILES := $(MY_FFMPEG_LIB)/libswscale.so
 include $(PREBUILT_SHARED_LIBRARY)

android/test-app/.gitignore

@@ -1,3 +0,0 @@
-/build
-/.idea/
-/local.properties

android/test-app/build.gradle

@@ -1,20 +1,32 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 27
+    signingConfigs {
+        localConfig {
+            keyAlias 'androiddebugkey'
+            storeFile file(System.getProperty("user.home") + '/.android/debug.keystore')
+            storePassword 'android'
+            keyPassword 'android'
+        }
+    }
+    compileSdkVersion 29
     defaultConfig {
         applicationId "com.arthenica.mobileffmpeg.test"
         minSdkVersion 24
-        targetSdkVersion 27
-        versionCode 240420
-        versionName "4.2"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        targetSdkVersion 29
+        versionCode 240431
+        versionName "4.3.1"
     }
     buildTypes {
-        release {
+        debug {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
+        release {
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            signingConfig signingConfigs.localConfig
+        }
     }
     splits {
         abi {
@@ -39,13 +51,8 @@ android.applicationVariants.all { variant ->
 }
 
 dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation 'com.arthenica:mobile-ffmpeg-full:4.2'
-    testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.2'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
-    implementation 'com.android.support:support-v4:27.1.1'
-    implementation 'com.android.support:design:27.1.1'
-    implementation 'com.android.support:appcompat-v7:27.1.1'
-    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    // implementation project(':app')
+    implementation 'com.arthenica:mobile-ffmpeg-full:4.3.1'
+    implementation 'androidx.appcompat:appcompat:1.1.0'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
 }

android/test-app/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +0,0 @@
-distributionBase=GRADLE_USER_HOME
-distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
-zipStoreBase=GRADLE_USER_HOME
-zipStorePath=wrapper/dists

android/test-app/gradlew

@@ -28,7 +28,7 @@ APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
+DEFAULT_JVM_OPTS='"-Xmx64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"

android/test-app/gradlew.bat

@@ -14,7 +14,7 @@ set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
+set DEFAULT_JVM_OPTS="-Xmx64m"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome

android/test-app/proguard-rules.pro

@@ -4,18 +4,3 @@
 #
 # For more details, see
 #   http://developer.android.com/guide/developing/tools/proguard.html
-
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
-
-# Uncomment this to preserve the line number information for
-# debugging stack traces.
-#-keepattributes SourceFile,LineNumberTable
-
-# If you keep the line number information, uncomment this to
-# hide the original source file name.
-#-renamesourcefileattribute SourceFile

android/test-app/src/androidTest/java/com/arthenica/mobileffmpeg/test/ExampleInstrumentedTest.java

@@ -1,45 +0,0 @@
-/*
- * Copyright (c) 2018 Taner Sener
- *
- * This file is part of MobileFFmpeg.
- *
- * MobileFFmpeg is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * MobileFFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public License
- *  along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.arthenica.mobileffmpeg.test;
-
-import android.content.Context;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import static org.junit.Assert.*;
-
-/**
- * Instrumented test, which will execute on an Android device.
- *
- * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
- */
-@RunWith(AndroidJUnit4.class)
-public class ExampleInstrumentedTest {
-    @Test
-    public void useAppContext() throws Exception {
-        // Context of the app under test.
-        Context appContext = InstrumentationRegistry.getTargetContext();
-
-        assertEquals("com.arthenica.mobileffmpeg.test", appContext.getPackageName());
-    }
-}

android/test-app/src/main/AndroidManifest.xml

@@ -12,16 +12,15 @@
     <uses-feature android:name="android.hardware.camera" android:required="true" />
 
     <application
-        android:allowBackup="true"
+        android:allowBackup="false"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:largeHeap="true"
         android:theme="@style/AppTheme"
-        tools:replace="android:icon">
-        <activity android:name="com.arthenica.mobileffmpeg.test.MainActivity"
-            android:theme="@style/AppTheme">
+        tools:ignore="GoogleAppIndexingWarning">
+        <activity android:name="com.arthenica.mobileffmpeg.test.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />

android/test-app/src/main/java/com/arthenica/mobileffmpeg/test/AudioTabFragment.java

@@ -21,93 +21,81 @@ package com.arthenica.mobileffmpeg.test;
 
 import android.app.AlertDialog;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.text.method.ScrollingMovementMethod;
 import android.util.Log;
-import android.view.LayoutInflater;
 import android.view.View;
-import android.view.ViewGroup;
 import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.Button;
 import android.widget.Spinner;
 import android.widget.TextView;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
 import com.arthenica.mobileffmpeg.Config;
 import com.arthenica.mobileffmpeg.FFmpeg;
 import com.arthenica.mobileffmpeg.LogCallback;
 import com.arthenica.mobileffmpeg.LogMessage;
-import com.arthenica.mobileffmpeg.util.RunCallback;
+import com.arthenica.mobileffmpeg.util.DialogUtil;
+import com.arthenica.mobileffmpeg.util.SingleExecuteCallback;
 
 import java.io.File;
 import java.util.concurrent.Callable;
 
-import static com.arthenica.mobileffmpeg.FFmpeg.RETURN_CODE_SUCCESS;
+import static com.arthenica.mobileffmpeg.Config.RETURN_CODE_SUCCESS;
 import static com.arthenica.mobileffmpeg.test.MainActivity.TAG;
 
 public class AudioTabFragment extends Fragment implements AdapterView.OnItemSelectedListener {
 
-    private MainActivity mainActivity;
     private AlertDialog progressDialog;
     private Button encodeButton;
     private TextView outputText;
     private String selectedCodec;
 
-    @Override
-    public View onCreateView(@NonNull final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) {
-        return inflater.inflate(R.layout.fragment_audio_tab, container, false);
+    public AudioTabFragment() {
+        super(R.layout.fragment_audio_tab);
     }
 
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
-        if (getView() != null) {
-            Spinner audioCodecSpinner = getView().findViewById(R.id.audioCodecSpinner);
-            ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(mainActivity,
-                    R.array.audio_codec, R.layout.spinner_item);
-            adapter.setDropDownViewResource(R.layout.spinner_dropdown_item);
-            audioCodecSpinner.setAdapter(adapter);
-            audioCodecSpinner.setOnItemSelectedListener(this);
+        Spinner audioCodecSpinner = view.findViewById(R.id.audioCodecSpinner);
+        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(requireContext(),
+                R.array.audio_codec, R.layout.spinner_item);
+        adapter.setDropDownViewResource(R.layout.spinner_dropdown_item);
+        audioCodecSpinner.setAdapter(adapter);
+        audioCodecSpinner.setOnItemSelectedListener(this);
 
-            encodeButton = getView().findViewById(R.id.encodeButton);
-            encodeButton.setOnClickListener(new View.OnClickListener() {
+        encodeButton = view.findViewById(R.id.encodeButton);
+        encodeButton.setOnClickListener(new View.OnClickListener() {
 
-                @Override
-                public void onClick(View v) {
-                    encodeAudio();
-                    // encodeChromaprint();
-                }
-            });
-            encodeButton.setEnabled(false);
+            @Override
+            public void onClick(View v) {
+                encodeAudio();
+                // encodeChromaprint();
+            }
+        });
+        encodeButton.setEnabled(false);
 
-            outputText = getView().findViewById(R.id.outputText);
-            outputText.setMovementMethod(new ScrollingMovementMethod());
-        }
+        outputText = view.findViewById(R.id.outputText);
+        outputText.setMovementMethod(new ScrollingMovementMethod());
 
-        progressDialog = mainActivity.createProgressDialog("Encoding audio");
+        progressDialog = DialogUtil.createProgressDialog(requireContext(), "Encoding audio");
 
         selectedCodec = getResources().getStringArray(R.array.audio_codec)[0];
     }
 
     @Override
-    public void setUserVisibleHint(boolean isVisibleToUser) {
-        super.setUserVisibleHint(isVisibleToUser);
-        if (isVisibleToUser) {
-            setActive();
-        }
+    public void onResume() {
+        super.onResume();
+        setActive();
     }
 
-    public void setMainActivity(MainActivity mainActivity) {
-        this.mainActivity = mainActivity;
-    }
-
-    public static AudioTabFragment newInstance(final MainActivity mainActivity) {
-        final AudioTabFragment fragment = new AudioTabFragment();
-        fragment.setMainActivity(mainActivity);
-        return fragment;
+    public static AudioTabFragment newInstance() {
+        return new AudioTabFragment();
     }
 
     public void enableLogCallback() {
@@ -159,10 +147,10 @@ public class AudioTabFragment extends Fragment implements AdapterView.OnItemSele
 
         android.util.Log.d(TAG, String.format("FFmpeg process started with arguments\n'%s'", ffmpegCommand));
 
-        MainActivity.executeAsync(new RunCallback() {
+        MainActivity.executeAsync(new SingleExecuteCallback() {
 
             @Override
-            public void apply(final int returnCode) {
+            public void apply(final int returnCode, final String commandOutput) {
                 android.util.Log.d(TAG, String.format("FFmpeg process exited with rc %d", returnCode));
 
                 hideProgressDialog();
@@ -172,10 +160,10 @@ public class AudioTabFragment extends Fragment implements AdapterView.OnItemSele
                     @Override
                     public Object call() {
                         if (returnCode == RETURN_CODE_SUCCESS) {
-                            Popup.show(mainActivity, "Encode completed successfully.");
+                            Popup.show(requireContext(), "Encode completed successfully.");
                             android.util.Log.d(TAG, "Encode completed successfully.");
                         } else {
-                            Popup.show(mainActivity, "Encode failed. Please check log for the details.");
+                            Popup.show(requireContext(), "Encode failed. Please check log for the details.");
                             android.util.Log.d(TAG, String.format("Encode failed with rc=%d", returnCode));
                         }
 
@@ -218,7 +206,7 @@ public class AudioTabFragment extends Fragment implements AdapterView.OnItemSele
             android.util.Log.d(TAG, "AUDIO sample created");
         } else {
             android.util.Log.d(TAG, String.format("Creating AUDIO sample failed with rc=%d", result));
-            Popup.show(mainActivity, "Creating AUDIO sample failed. Please check log for the details.");
+            Popup.show(requireContext(), "Creating AUDIO sample failed. Please check log for the details.");
         }
     }
 
@@ -260,11 +248,11 @@ public class AudioTabFragment extends Fragment implements AdapterView.OnItemSele
         }
 
         final String audio = "audio." + extension;
-        return new File(mainActivity.getFilesDir(), audio);
+        return new File(requireContext().getFilesDir(), audio);
     }
 
     public File getAudioSampleFile() {
-        return new File(mainActivity.getFilesDir(), "audio-sample.wav");
+        return new File(requireContext().getFilesDir(), "audio-sample.wav");
     }
 
     public void setActive() {
@@ -272,7 +260,7 @@ public class AudioTabFragment extends Fragment implements AdapterView.OnItemSele
         disableLogCallback();
         createAudioSample();
         enableLogCallback();
-        Popup.show(mainActivity, Tooltip.AUDIO_TEST_TOOLTIP_TEXT);
+        Popup.show(requireContext(), Tooltip.AUDIO_TEST_TOOLTIP_TEXT);
     }
 
     public void appendLog(final String logMessage) {

android/test-app/src/main/java/com/arthenica/mobileffmpeg/test/CommandTabFragment.java

@@ -20,81 +20,72 @@
 package com.arthenica.mobileffmpeg.test;
 
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.text.method.ScrollingMovementMethod;
-import android.view.LayoutInflater;
+import android.util.AndroidRuntimeException;
+import android.util.Log;
 import android.view.View;
-import android.view.ViewGroup;
 import android.widget.EditText;
 import android.widget.TextView;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
 import com.arthenica.mobileffmpeg.Config;
 import com.arthenica.mobileffmpeg.FFmpeg;
+import com.arthenica.mobileffmpeg.FFprobe;
 import com.arthenica.mobileffmpeg.LogCallback;
 import com.arthenica.mobileffmpeg.LogMessage;
-import com.arthenica.mobileffmpeg.util.RunCallback;
 
 import java.util.concurrent.Callable;
 
 public class CommandTabFragment extends Fragment {
 
-    private MainActivity mainActivity;
     private EditText commandText;
     private TextView outputText;
 
-    @Override
-    public View onCreateView(@NonNull final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) {
-        return inflater.inflate(R.layout.fragment_command_tab, container, false);
+    public CommandTabFragment() {
+        super(R.layout.fragment_command_tab);
     }
 
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
-        if (getView() != null) {
-            commandText = getView().findViewById(R.id.commandText);
+        commandText = view.findViewById(R.id.commandText);
 
-            View runButton = getView().findViewById(R.id.runButton);
-            runButton.setOnClickListener(new View.OnClickListener() {
+        View runFFmpegButton = view.findViewById(R.id.runFFmpegButton);
+        runFFmpegButton.setOnClickListener(new View.OnClickListener() {
 
-                @Override
-                public void onClick(View v) {
-                    runFFmpeg();
-                }
-            });
+            @Override
+            public void onClick(View v) {
+                runFFmpeg();
+            }
+        });
 
-            View runAsyncButton = getView().findViewById(R.id.runAsyncButton);
-            runAsyncButton.setOnClickListener(new View.OnClickListener() {
+        View runFFprobeButton = view.findViewById(R.id.runFFprobeButton);
+        runFFprobeButton.setOnClickListener(new View.OnClickListener() {
 
-                @Override
-                public void onClick(View v) {
-                    runFFmpegAsync();
-                }
-            });
+            @Override
+            public void onClick(View v) {
+                runFFprobe();
+            }
+        });
 
-            outputText = getView().findViewById(R.id.outputText);
-            outputText.setMovementMethod(new ScrollingMovementMethod());
-        }
+        outputText = view.findViewById(R.id.outputText);
+        outputText.setMovementMethod(new ScrollingMovementMethod());
+
+        Log.d(MainActivity.TAG, "Last command output was: " + Config.getLastCommandOutput());
     }
 
     @Override
-    public void setUserVisibleHint(boolean isVisibleToUser) {
-        super.setUserVisibleHint(isVisibleToUser);
-        if (isVisibleToUser) {
-            setActive();
-        }
+    public void onResume() {
+        super.onResume();
+        setActive();
     }
 
-    public void setMainActivity(MainActivity mainActivity) {
-        this.mainActivity = mainActivity;
-    }
-
-    public static CommandTabFragment newInstance(final MainActivity mainActivity) {
-        final CommandTabFragment fragment = new CommandTabFragment();
-        fragment.setMainActivity(mainActivity);
-        return fragment;
+    public static CommandTabFragment newInstance() {
+        return new CommandTabFragment();
     }
 
     public void enableLogCallback() {
@@ -110,6 +101,8 @@ public class CommandTabFragment extends Fragment {
                         return null;
                     }
                 });
+
+                throw new AndroidRuntimeException("I am test exception thrown by test application");
             }
         });
     }
@@ -117,55 +110,43 @@ public class CommandTabFragment extends Fragment {
     public void runFFmpeg() {
         clearLog();
 
-        final String ffmpegCommand = String.format("-hide_banner %s", commandText.getText().toString());
+        final String ffmpegCommand = String.format("%s", commandText.getText().toString());
 
-        android.util.Log.d(MainActivity.TAG, "Testing COMMAND synchronously.");
+        android.util.Log.d(MainActivity.TAG, "Testing FFmpeg COMMAND synchronously.");
 
         android.util.Log.d(MainActivity.TAG, String.format("FFmpeg process started with arguments\n\'%s\'", ffmpegCommand));
 
-        int result = FFmpeg.execute(ffmpegCommand, " ");
+        int result = FFmpeg.execute(ffmpegCommand);
 
         android.util.Log.d(MainActivity.TAG, String.format("FFmpeg process exited with rc %d", result));
 
         if (result != 0) {
-            Popup.show(mainActivity, "Command failed. Please check output for the details.");
+            Popup.show(requireContext(), "Command failed. Please check output for the details.");
         }
     }
 
-    public void runFFmpegAsync() {
+    public void runFFprobe() {
         clearLog();
 
-        final String ffmpegCommand = String.format("-hide_banner %s", commandText.getText().toString());
+        final String ffprobeCommand = String.format("%s", commandText.getText().toString());
 
-        android.util.Log.d(MainActivity.TAG, "Testing COMMAND asynchronously.");
+        android.util.Log.d(MainActivity.TAG, "Testing FFprobe COMMAND synchronously.");
 
-        android.util.Log.d(MainActivity.TAG, String.format("FFmpeg process started with arguments\n\'%s\'", ffmpegCommand));
+        android.util.Log.d(MainActivity.TAG, String.format("FFprobe process started with arguments\n\'%s\'", ffprobeCommand));
 
-        MainActivity.executeAsync(new RunCallback() {
+        int result = FFprobe.execute(ffprobeCommand);
 
-            @Override
-            public void apply(int result) {
+        android.util.Log.d(MainActivity.TAG, String.format("FFprobe process exited with rc %d", result));
 
-                android.util.Log.d(MainActivity.TAG, String.format("FFmpeg process exited with rc %d", result));
-
-                if (result != 0) {
-                    MainActivity.addUIAction(new Callable() {
-                        @Override
-                        public Object call() {
-                            Popup.show(mainActivity, "Command failed. Please check output for the details.");
-                            return null;
-                        }
-                    });
-                }
-
-            }
-        }, ffmpegCommand);
+        if (result != 0) {
+            Popup.show(requireContext(), "Command failed. Please check output for the details.");
+        }
     }
 
-    public void setActive() {
-        android.util.Log.i(MainActivity.TAG, "Command Tab Activated");
+    private void setActive() {
+        Log.i(MainActivity.TAG, "Command Tab Activated");
         enableLogCallback();
-        Popup.show(mainActivity, Tooltip.COMMAND_TEST_TOOLTIP_TEXT);
+        Popup.show(requireContext(), Tooltip.COMMAND_TEST_TOOLTIP_TEXT);
     }
 
     public void appendLog(final String logMessage) {

android/test-app/src/main/java/com/arthenica/mobileffmpeg/test/HttpsTabFragment.java

@@ -20,73 +20,65 @@
 package com.arthenica.mobileffmpeg.test;
 
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.text.method.ScrollingMovementMethod;
-import android.view.LayoutInflater;
+import android.util.Log;
 import android.view.View;
-import android.view.ViewGroup;
 import android.widget.EditText;
 import android.widget.TextView;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
 import com.arthenica.mobileffmpeg.Config;
-import com.arthenica.mobileffmpeg.FFmpeg;
+import com.arthenica.mobileffmpeg.FFprobe;
 import com.arthenica.mobileffmpeg.LogCallback;
 import com.arthenica.mobileffmpeg.LogMessage;
+import com.arthenica.mobileffmpeg.MediaInformation;
+import com.arthenica.mobileffmpeg.StreamInformation;
 
+import java.util.Map;
+import java.util.Set;
 import java.util.concurrent.Callable;
 
 public class HttpsTabFragment extends Fragment {
 
-    public static final String HTTPS_TEST_DEFAULT_URL = "https://upload.wikimedia.org/wikipedia/commons/thumb/4/4b/FFmpeg-Logo.svg/568px-FFmpeg-Logo.svg.png";
+    public static final String HTTPS_TEST_DEFAULT_URL = "https://download.blender.org/peach/trailer/trailer_1080p.ogg";
 
-    private MainActivity mainActivity;
     private EditText urlText;
     private TextView outputText;
 
-    @Override
-    public View onCreateView(@NonNull final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) {
-        return inflater.inflate(R.layout.fragment_https_tab, container, false);
+    public HttpsTabFragment() {
+        super(R.layout.fragment_https_tab);
     }
 
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
-        if (getView() != null) {
-            urlText = getView().findViewById(R.id.urlText);
+        urlText = view.findViewById(R.id.urlText);
 
-            View getInfoButton = getView().findViewById(R.id.getInfoButton);
-            getInfoButton.setOnClickListener(new View.OnClickListener() {
+        View getInfoButton = view.findViewById(R.id.getInfoButton);
+        getInfoButton.setOnClickListener(new View.OnClickListener() {
 
-                @Override
-                public void onClick(View v) {
-                    getInfo();
-                }
-            });
+            @Override
+            public void onClick(View v) {
+                getInfo();
+            }
+        });
 
-            outputText = getView().findViewById(R.id.outputText);
-            outputText.setMovementMethod(new ScrollingMovementMethod());
-        }
+        outputText = view.findViewById(R.id.outputText);
+        outputText.setMovementMethod(new ScrollingMovementMethod());
     }
 
     @Override
-    public void setUserVisibleHint(boolean isVisibleToUser) {
-        super.setUserVisibleHint(isVisibleToUser);
-        if (isVisibleToUser) {
-            setActive();
-        }
+    public void onResume() {
+        super.onResume();
+        setActive();
     }
 
-    public void setMainActivity(MainActivity mainActivity) {
-        this.mainActivity = mainActivity;
-    }
-
-    public static HttpsTabFragment newInstance(final MainActivity mainActivity) {
-        final HttpsTabFragment fragment = new HttpsTabFragment();
-        fragment.setMainActivity(mainActivity);
-        return fragment;
+    public static HttpsTabFragment newInstance() {
+        return new HttpsTabFragment();
     }
 
     public void enableLogCallback() {
@@ -119,20 +111,106 @@ public class HttpsTabFragment extends Fragment {
         }
 
         // HTTPS COMMAND ARGUMENTS
-        final String ffmpegCommand = String.format("-hide_banner -i %s -f null -", testUrl);
+        MediaInformation information = FFprobe.getMediaInformation(testUrl);
+        if (information == null) {
+            appendLog("Get media information failed\n");
+        } else {
+            appendLog("Media information for " + information.getPath() + "\n");
 
-        android.util.Log.d(MainActivity.TAG, String.format("FFmpeg process started with arguments\n'%s'", ffmpegCommand));
+            if (information.getFormat() != null) {
+                appendLog("Format: " + information.getFormat() + "\n");
+            }
+            if (information.getBitrate() != null) {
+                appendLog("Bitrate: " + information.getBitrate() + "\n");
+            }
+            if (information.getDuration() != null) {
+                appendLog("Duration: " + information.getDuration() + "\n");
+            }
+            if (information.getStartTime() != null) {
+                appendLog("Start time: " + information.getStartTime() + "\n");
+            }
+            if (information.getMetadataEntries() != null) {
+                Set<Map.Entry<String, String>> entries = information.getMetadataEntries();
+                for (Map.Entry<String, String> entry : entries) {
+                    appendLog("Metadata: " + entry.getKey() + ":" + entry.getValue() + "\n");
+                }
+            }
+            if (information.getStreams() != null) {
+                for (StreamInformation stream : information.getStreams()) {
+                    if (stream.getIndex() != null) {
+                        appendLog("Stream index: " + stream.getIndex() + "\n");
+                    }
+                    if (stream.getType() != null) {
+                        appendLog("Stream type: " + stream.getType() + "\n");
+                    }
+                    if (stream.getCodec() != null) {
+                        appendLog("Stream codec: " + stream.getCodec() + "\n");
+                    }
+                    if (stream.getFullCodec() != null) {
+                        appendLog("Stream full codec: " + stream.getFullCodec() + "\n");
+                    }
+                    if (stream.getFormat() != null) {
+                        appendLog("Stream format: " + stream.getFormat() + "\n");
+                    }
+                    if (stream.getFullFormat() != null) {
+                        appendLog("Stream full format: " + stream.getFullFormat() + "\n");
+                    }
 
-        // EXECUTE
-        int result = FFmpeg.execute(ffmpegCommand);
+                    if (stream.getWidth() != null) {
+                        appendLog("Stream width: " + stream.getWidth() + "\n");
+                    }
+                    if (stream.getHeight() != null) {
+                        appendLog("Stream height: " + stream.getHeight() + "\n");
+                    }
 
-        android.util.Log.d(MainActivity.TAG, String.format("FFmpeg process exited with rc %d", result));
+                    if (stream.getBitrate() != null) {
+                        appendLog("Stream bitrate: " + stream.getBitrate() + "\n");
+                    }
+                    if (stream.getSampleRate() != null) {
+                        appendLog("Stream sample rate: " + stream.getSampleRate() + "\n");
+                    }
+                    if (stream.getSampleFormat() != null) {
+                        appendLog("Stream sample format: " + stream.getSampleFormat() + "\n");
+                    }
+                    if (stream.getChannelLayout() != null) {
+                        appendLog("Stream channel layout: " + stream.getChannelLayout() + "\n");
+                    }
+
+                    if (stream.getSampleAspectRatio() != null) {
+                        appendLog("Stream sample aspect ratio: " + stream.getSampleAspectRatio() + "\n");
+                    }
+                    if (stream.getDisplayAspectRatio() != null) {
+                        appendLog("Stream display ascpect ratio: " + stream.getDisplayAspectRatio() + "\n");
+                        ;
+                    }
+                    if (stream.getAverageFrameRate() != null) {
+                        appendLog("Stream average frame rate: " + stream.getAverageFrameRate() + "\n");
+                    }
+                    if (stream.getRealFrameRate() != null) {
+                        appendLog("Stream real frame rate: " + stream.getRealFrameRate() + "\n");
+                    }
+                    if (stream.getTimeBase() != null) {
+                        appendLog("Stream time base: " + stream.getTimeBase() + "\n");
+                    }
+                    if (stream.getCodecTimeBase() != null) {
+                        appendLog("Stream codec time base: " + stream.getCodecTimeBase() + "\n");
+                    }
+
+                    if (stream.getMetadataEntries() != null) {
+                        Set<Map.Entry<String, String>> entries = stream.getMetadataEntries();
+                        for (Map.Entry<String, String> entry : entries) {
+                            appendLog("Stream metadata: " + entry.getKey() + ":" + entry.getValue() + "\n");
+                        }
+                    }
+                }
+            }
+        }
     }
 
     public void setActive() {
-        android.util.Log.i(MainActivity.TAG, "Https Tab Activated");
+        Log.i(MainActivity.TAG, "Https Tab Activated");
         enableLogCallback();
-        Popup.show(mainActivity, Tooltip.HTTPS_TEST_TOOLTIP_TEXT);
+        Popup.show(requireContext(), Tooltip.HTTPS_TEST_TOOLTIP_TEXT);
     }
 
     public void appendLog(final String logMessage) {

android/test-app/src/main/java/com/arthenica/mobileffmpeg/test/MainActivity.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018 Taner Sener
+ * Copyright (c) 2018-2019 Taner Sener
  *
  * This file is part of MobileFFmpeg.
  *
@@ -20,40 +20,30 @@
 package com.arthenica.mobileffmpeg.test;
 
 import android.Manifest;
-import android.app.ActionBar;
-import android.app.AlertDialog;
-import android.content.Context;
 import android.content.pm.PackageManager;
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
 import android.graphics.Color;
+import android.os.AsyncTask;
 import android.os.Bundle;
 import android.os.Handler;
-import android.support.v4.app.ActivityCompat;
-import android.support.v4.view.PagerTabStrip;
-import android.support.v4.view.ViewPager;
-import android.support.v7.app.AppCompatActivity;
 import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.widget.Button;
-import android.widget.TextView;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.app.ActivityCompat;
+import androidx.viewpager.widget.PagerTabStrip;
+import androidx.viewpager.widget.ViewPager;
 
 import com.arthenica.mobileffmpeg.Config;
-import com.arthenica.mobileffmpeg.FFmpeg;
-import com.arthenica.mobileffmpeg.util.RunCallback;
-import com.arthenica.mobileffmpeg.util.AsynchronousTaskService;
-import com.arthenica.mobileffmpeg.util.RunCallback;
+import com.arthenica.mobileffmpeg.util.AsyncSingleFFmpegExecuteTask;
+import com.arthenica.mobileffmpeg.util.ResourcesUtil;
+import com.arthenica.mobileffmpeg.util.SingleExecuteCallback;
 
 import java.io.File;
-import java.io.FileOutputStream;
 import java.io.IOException;
-import java.io.InputStream;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Queue;
 import java.util.concurrent.Callable;
 import java.util.concurrent.ConcurrentLinkedQueue;
-import java.util.concurrent.Future;
 
 public class MainActivity extends AppCompatActivity {
 
@@ -66,8 +56,6 @@ public class MainActivity extends AppCompatActivity {
             Manifest.permission.CAMERA
     };
 
-    protected static final AsynchronousTaskService asynchronousTaskService = new AsynchronousTaskService();
-
     protected static final Queue<Callable> actionQueue = new ConcurrentLinkedQueue<>();
 
     protected static final Handler handler = new Handler();
@@ -99,12 +87,6 @@ public class MainActivity extends AppCompatActivity {
 
         setContentView(R.layout.activity_main);
 
-        android.support.v7.app.ActionBar supportActionBar = getSupportActionBar();
-        if (supportActionBar != null) {
-            supportActionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
-            supportActionBar.setCustomView(R.layout.action_bar);
-        }
-
         PagerTabStrip pagerTabStrip = findViewById(R.id.pagerTabStrip);
         if (pagerTabStrip != null) {
             pagerTabStrip.setDrawFullUnderline(false);
@@ -113,7 +95,7 @@ public class MainActivity extends AppCompatActivity {
         }
 
         final ViewPager viewPager = findViewById(R.id.pager);
-        viewPager.setAdapter(new PagerAdapter(getSupportFragmentManager(), this, 6));
+        viewPager.setAdapter(new PagerAdapter(getSupportFragmentManager(), this));
 
         waitForUIAction();
 
@@ -143,6 +125,9 @@ public class MainActivity extends AppCompatActivity {
         } catch (final IOException e) {
             Log.e(TAG, "Font registration failed.", e);
         }
+
+        Log.d(TAG, "Listing supported camera ids.");
+        listSupportedCameraIds();
     }
 
     @Override
@@ -153,25 +138,14 @@ public class MainActivity extends AppCompatActivity {
     }
 
     /**
-     * <p>Starts a new asynchronous FFmpeg operation with arguments provided.
+     * <p>Starts a new asynchronous FFmpeg operation with command provided.
      *
-     * @param runCallback callback function to receive result of this execution
-     * @param arguments   FFmpeg command options/arguments
-     * @return <code>Future</code> instance of asynchronous operation started
+     * @param singleExecuteCallback callback function to receive result of this execution
+     * @param command               FFmpeg command
      */
-    public static Future executeAsync(final RunCallback runCallback, final String arguments) {
-        return asynchronousTaskService.runAsynchronously(new Callable<Integer>() {
-
-            @Override
-            public Integer call() {
-                int returnCode = FFmpeg.execute(arguments, " ");
-                if (runCallback != null) {
-                    runCallback.apply(returnCode);
-                }
-
-                return returnCode;
-            }
-        });
+    public static void executeAsync(final SingleExecuteCallback singleExecuteCallback, final String command) {
+        final AsyncSingleFFmpegExecuteTask asyncCommandTask = new AsyncSingleFFmpegExecuteTask(command, singleExecuteCallback);
+        asyncCommandTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
     }
 
     public static void waitForUIAction() {
@@ -182,84 +156,12 @@ public class MainActivity extends AppCompatActivity {
         actionQueue.add(callable);
     }
 
-    public AlertDialog createProgressDialog(final String text) {
-        AlertDialog.Builder builder = new AlertDialog.Builder(this);
-        LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
-        if (inflater != null) {
-            View dialogView = inflater.inflate(R.layout.progress_dialog_layout, null);
-            builder.setView(dialogView);
-
-            TextView textView = dialogView.findViewById(R.id.progressDialogText);
-            if (textView != null) {
-                textView.setText(text);
-            }
-        }
-        builder.setCancelable(false);
-        return builder.create();
-    }
-
-    public AlertDialog createCancellableProgressDialog(final String text, final View.OnClickListener onClickListener) {
-        AlertDialog.Builder builder = new AlertDialog.Builder(this);
-        LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
-        if (inflater != null) {
-            View dialogView = inflater.inflate(R.layout.cancellable_progress_dialog_layout, null);
-            builder.setView(dialogView);
-
-            TextView textView = dialogView.findViewById(R.id.progressDialogText);
-            if (textView != null) {
-                textView.setText(text);
-            }
-            Button cancelButton = dialogView.findViewById(R.id.cancelButton);
-            if (cancelButton != null) {
-                cancelButton.setOnClickListener(onClickListener);
-            }
-        }
-        builder.setCancelable(false);
-        return builder.create();
-    }
-
-    protected void resourceToFile(final int resourceId, final File file) throws IOException {
-        Bitmap bitmap = BitmapFactory.decodeResource(getResources(), resourceId);
-
-        if (file.exists()) {
-            file.delete();
-        }
-
-        FileOutputStream outputStream = new FileOutputStream(file);
-        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);
-        outputStream.flush();
-        outputStream.close();
-    }
-
-    protected void rawResourceToFile(final int resourceId, final File file) throws IOException {
-        final InputStream inputStream = getResources().openRawResource(resourceId);
-        if (file.exists()) {
-            file.delete();
-        }
-        final FileOutputStream outputStream = new FileOutputStream(file);
-
-        try {
-            final byte[] buffer = new byte[1024];
-            int readSize;
-
-            while ((readSize = inputStream.read(buffer)) > 0) {
-                outputStream.write(buffer, 0, readSize);
-            }
-        } catch (final IOException e) {
-            Log.e(TAG, "Saving raw resource failed.", e);
-        } finally {
-            inputStream.close();
-            outputStream.flush();
-            outputStream.close();
-        }
-    }
-
     protected void registerAppFont() throws IOException {
         final File cacheDirectory = getCacheDir();
 
         // SAVE FONTS
-        rawResourceToFile(R.raw.doppioone_regular, new File(cacheDirectory, "doppioone_regular.ttf"));
-        rawResourceToFile(R.raw.truenorg, new File(cacheDirectory, "truenorg.otf"));
+        ResourcesUtil.rawResourceToFile(getResources(), R.raw.doppioone_regular, new File(cacheDirectory, "doppioone_regular.ttf"));
+        ResourcesUtil.rawResourceToFile(getResources(), R.raw.truenorg, new File(cacheDirectory, "truenorg.otf"));
 
         final HashMap<String, String> fontNameMapping = new HashMap<>();
         fontNameMapping.put("MyFontName", "Doppio One");
@@ -267,4 +169,15 @@ public class MainActivity extends AppCompatActivity {
         // Config.setFontDirectory(this, cacheDirectory.getAbsolutePath(), null);
     }
 
+    protected void listSupportedCameraIds() {
+        final List<String> supportedCameraIds = Config.getSupportedCameraIds(this);
+        if (supportedCameraIds.size() == 0) {
+            android.util.Log.d(MainActivity.TAG, "No supported cameras found.");
+        } else {
+            for (String supportedCameraId : supportedCameraIds) {
+                android.util.Log.d(MainActivity.TAG, "Supported camera detected: " + supportedCameraId);
+            }
+        }
+    }
+
 }

android/test-app/src/main/java/com/arthenica/mobileffmpeg/test/PagerAdapter.java

@@ -19,41 +19,45 @@
 
 package com.arthenica.mobileffmpeg.test;
 
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentManager;
-import android.support.v4.app.FragmentPagerAdapter;
+import android.content.Context;
+
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentPagerAdapter;
 
 public class PagerAdapter extends FragmentPagerAdapter {
-    private final MainActivity mainActivity;
-    private int numberOfTabs;
+    private static final int NUMBER_OF_TABS = 7;
 
-    PagerAdapter(final FragmentManager fragmentManager, final MainActivity mainActivity, final int numberOfTabs) {
-        super(fragmentManager);
+    private final Context context;
 
-        this.mainActivity = mainActivity;
-        this.numberOfTabs = numberOfTabs;
+    PagerAdapter(FragmentManager fragmentManager, Context context) {
+        super(fragmentManager, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
+        this.context = context;
     }
 
     @Override
     public Fragment getItem(final int position) {
         switch (position) {
             case 0: {
-                return CommandTabFragment.newInstance(mainActivity);
+                return CommandTabFragment.newInstance();
             }
             case 1: {
-                return VideoTabFragment.newInstance(mainActivity);
+                return VideoTabFragment.newInstance();
             }
             case 2: {
-                return HttpsTabFragment.newInstance(mainActivity);
+                return HttpsTabFragment.newInstance();
             }
             case 3: {
-                return AudioTabFragment.newInstance(mainActivity);
+                return AudioTabFragment.newInstance();
             }
             case 4: {
-                return SubtitleTabFragment.newInstance(mainActivity);
+                return SubtitleTabFragment.newInstance();
             }
             case 5: {
-                return VidStabTabFragment.newInstance(mainActivity);
+                return VidStabTabFragment.newInstance();
+            }
+            case 6: {
+                return PipeTabFragment.newInstance();
             }
             default: {
                 return null;
@@ -63,29 +67,32 @@ public class PagerAdapter extends FragmentPagerAdapter {
 
     @Override
     public int getCount() {
-        return numberOfTabs;
+        return NUMBER_OF_TABS;
     }
 
     @Override
     public CharSequence getPageTitle(final int position) {
         switch (position) {
             case 0: {
-                return mainActivity.getString(R.string.command_tab);
+                return context.getString(R.string.command_tab);
             }
             case 1: {
-                return mainActivity.getString(R.string.video_tab);
+                return context.getString(R.string.video_tab);
             }
             case 2: {
-                return mainActivity.getString(R.string.https_tab);
+                return context.getString(R.string.https_tab);
             }
             case 3: {
-                return mainActivity.getString(R.string.audio_tab);
+                return context.getString(R.string.audio_tab);
             }
             case 4: {
-                return mainActivity.getString(R.string.subtitle_tab);
+                return context.getString(R.string.subtitle_tab);
             }
             case 5: {
-                return mainActivity.getString(R.string.vidstab_tab);
+                return context.getString(R.string.vidstab_tab);
+            }
+            case 6: {
+                return context.getString(R.string.pipe_tab);
             }
             default: {
                 return null;

android/test-app/src/main/java/com/arthenica/mobileffmpeg/test/PipeTabFragment.java

@@ -0,0 +1,271 @@
+/*
+ * Copyright (c) 2018 Taner Sener
+ *
+ * This file is part of MobileFFmpeg.
+ *
+ * MobileFFmpeg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * MobileFFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.arthenica.mobileffmpeg.test;
+
+import android.app.AlertDialog;
+import android.media.MediaPlayer;
+import android.net.Uri;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.MediaController;
+import android.widget.TextView;
+import android.widget.VideoView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
+import com.arthenica.mobileffmpeg.Config;
+import com.arthenica.mobileffmpeg.LogCallback;
+import com.arthenica.mobileffmpeg.LogMessage;
+import com.arthenica.mobileffmpeg.Statistics;
+import com.arthenica.mobileffmpeg.StatisticsCallback;
+import com.arthenica.mobileffmpeg.util.AsyncCatImageTask;
+import com.arthenica.mobileffmpeg.util.DialogUtil;
+import com.arthenica.mobileffmpeg.util.ResourcesUtil;
+import com.arthenica.mobileffmpeg.util.SingleExecuteCallback;
+
+import java.io.File;
+import java.io.IOException;
+import java.math.BigDecimal;
+import java.util.concurrent.Callable;
+
+import static com.arthenica.mobileffmpeg.Config.RETURN_CODE_SUCCESS;
+import static com.arthenica.mobileffmpeg.test.MainActivity.TAG;
+
+public class PipeTabFragment extends Fragment {
+
+    private VideoView videoView;
+    private AlertDialog progressDialog;
+    private Statistics statistics;
+
+    public PipeTabFragment() {
+        super(R.layout.fragment_pipe_tab);
+    }
+
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        View createButton = view.findViewById(R.id.createButton);
+        if (createButton != null) {
+            createButton.setOnClickListener(new View.OnClickListener() {
+
+                @Override
+                public void onClick(View v) {
+                    createVideo();
+                }
+            });
+        }
+
+        videoView = view.findViewById(R.id.videoPlayerFrame);
+
+        progressDialog = DialogUtil.createProgressDialog(requireContext(), "Creating video");
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        setActive();
+    }
+
+    public static PipeTabFragment newInstance() {
+        return new PipeTabFragment();
+    }
+
+    public void enableLogCallback() {
+        Config.enableLogCallback(new LogCallback() {
+
+            @Override
+            public void apply(LogMessage message) {
+                Log.d(MainActivity.TAG, message.getText());
+            }
+        });
+    }
+
+    public void enableStatisticsCallback() {
+        Config.enableStatisticsCallback(new StatisticsCallback() {
+
+            @Override
+            public void apply(final Statistics newStatistics) {
+                MainActivity.addUIAction(new Callable() {
+
+                    @Override
+                    public Object call() {
+                        PipeTabFragment.this.statistics = newStatistics;
+                        updateProgressDialog();
+                        return null;
+                    }
+                });
+            }
+        });
+    }
+
+    void startAsyncCatImageProcess(final String imagePath, final String namedPipePath) {
+        AsyncCatImageTask asyncTask = new AsyncCatImageTask();
+        asyncTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, imagePath, namedPipePath);
+    }
+
+    public void createVideo() {
+        final File image1File = new File(requireContext().getCacheDir(), "colosseum.jpg");
+        final File image2File = new File(requireContext().getCacheDir(), "pyramid.jpg");
+        final File image3File = new File(requireContext().getCacheDir(), "tajmahal.jpg");
+        final File videoFile = getVideoFile();
+
+        String pipe1 = Config.registerNewFFmpegPipe(requireContext());
+        String pipe2 = Config.registerNewFFmpegPipe(requireContext());
+        String pipe3 = Config.registerNewFFmpegPipe(requireContext());
+
+        try {
+
+            // IF VIDEO IS PLAYING STOP PLAYBACK
+            videoView.stopPlayback();
+
+            if (videoFile.exists()) {
+                videoFile.delete();
+            }
+
+            Log.d(TAG, "Testing PIPE with 'mpeg4' codec");
+
+            showProgressDialog();
+
+            ResourcesUtil.resourceToFile(getResources(), R.drawable.colosseum, image1File);
+            ResourcesUtil.resourceToFile(getResources(), R.drawable.pyramid, image2File);
+            ResourcesUtil.resourceToFile(getResources(), R.drawable.tajmahal, image3File);
+
+            final String ffmpegCommand = Video.generateCreateVideoWithPipesScript(pipe1, pipe2, pipe3, videoFile.getAbsolutePath());
+
+            Log.d(TAG, String.format("FFmpeg process started with arguments\n'%s'", ffmpegCommand));
+
+            MainActivity.executeAsync(new SingleExecuteCallback() {
+
+                @Override
+                public void apply(final int returnCode, final String commandOutput) {
+                    Log.d(TAG, String.format("FFmpeg process exited with rc %d", returnCode));
+
+                    hideProgressDialog();
+
+                    MainActivity.addUIAction(new Callable() {
+
+                        @Override
+                        public Object call() {
+                            if (returnCode == RETURN_CODE_SUCCESS) {
+                                Log.d(TAG, "Create completed successfully; playing video.");
+                                playVideo();
+                            } else {
+                                Popup.show(requireContext(), "Create failed. Please check log for the details.");
+                                Log.d(TAG, String.format("Create failed with rc=%d", returnCode));
+                            }
+
+                            return null;
+                        }
+                    });
+                }
+            }, ffmpegCommand);
+
+            // START ASYNC PROCESSES AFTER INITIATING FFMPEG COMMAND
+            startAsyncCatImageProcess(image1File.getAbsolutePath(), pipe1);
+            startAsyncCatImageProcess(image2File.getAbsolutePath(), pipe2);
+            startAsyncCatImageProcess(image3File.getAbsolutePath(), pipe3);
+
+        } catch (IOException e) {
+            Log.e(TAG, "Create video failed", e);
+            Popup.show(requireContext(), "Create video failed");
+        }
+    }
+
+    protected void playVideo() {
+        MediaController mediaController = new MediaController(requireContext());
+        mediaController.setAnchorView(videoView);
+        videoView.setVideoURI(Uri.parse("file://" + getVideoFile().getAbsolutePath()));
+        videoView.setMediaController(mediaController);
+        videoView.requestFocus();
+        videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
+
+            @Override
+            public void onPrepared(MediaPlayer mp) {
+                videoView.setBackgroundColor(0x00000000);
+            }
+        });
+        videoView.setOnErrorListener(new MediaPlayer.OnErrorListener() {
+
+            @Override
+            public boolean onError(MediaPlayer mp, int what, int extra) {
+                videoView.stopPlayback();
+                return false;
+            }
+        });
+        videoView.start();
+    }
+
+    protected File getVideoFile() {
+        return new File(requireContext().getFilesDir(), "video.mp4");
+    }
+
+    public void setActive() {
+        Log.i(MainActivity.TAG, "Pipe Tab Activated");
+        enableLogCallback();
+        enableStatisticsCallback();
+        Popup.show(requireContext(), Tooltip.PIPE_TEST_TOOLTIP_TEXT);
+    }
+
+    protected void showProgressDialog() {
+
+        // CLEAN STATISTICS
+        statistics = null;
+        Config.resetStatistics();
+
+        progressDialog.show();
+    }
+
+    protected void updateProgressDialog() {
+        if (statistics == null) {
+            return;
+        }
+
+        int timeInMilliseconds = this.statistics.getTime();
+        if (timeInMilliseconds > 0) {
+            int totalVideoDuration = 9000;
+
+            String completePercentage = new BigDecimal(timeInMilliseconds).multiply(new BigDecimal(100)).divide(new BigDecimal(totalVideoDuration), 0, BigDecimal.ROUND_HALF_UP).toString();
+
+            TextView textView = progressDialog.findViewById(R.id.progressDialogText);
+            if (textView != null) {
+                textView.setText(String.format("Creating video: %% %s", completePercentage));
+            }
+        }
+    }
+
+    protected void hideProgressDialog() {
+        progressDialog.dismiss();
+
+        MainActivity.addUIAction(new Callable() {
+
+            @Override
+            public Object call() {
+                PipeTabFragment.this.progressDialog = DialogUtil.createProgressDialog(requireContext(), "Creating video");
+                return null;
+            }
+        });
+    }
+
+}

android/test-app/src/main/java/com/arthenica/mobileffmpeg/test/SubtitleTabFragment.java

@@ -23,32 +23,33 @@ import android.app.AlertDialog;
 import android.media.MediaPlayer;
 import android.net.Uri;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.util.Log;
-import android.view.LayoutInflater;
 import android.view.View;
-import android.view.ViewGroup;
 import android.widget.MediaController;
 import android.widget.TextView;
 import android.widget.VideoView;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
 import com.arthenica.mobileffmpeg.Config;
 import com.arthenica.mobileffmpeg.FFmpeg;
 import com.arthenica.mobileffmpeg.LogCallback;
 import com.arthenica.mobileffmpeg.LogMessage;
 import com.arthenica.mobileffmpeg.Statistics;
 import com.arthenica.mobileffmpeg.StatisticsCallback;
-import com.arthenica.mobileffmpeg.util.RunCallback;
+import com.arthenica.mobileffmpeg.util.DialogUtil;
+import com.arthenica.mobileffmpeg.util.ResourcesUtil;
+import com.arthenica.mobileffmpeg.util.SingleExecuteCallback;
 
 import java.io.File;
 import java.io.IOException;
 import java.math.BigDecimal;
 import java.util.concurrent.Callable;
 
-import static com.arthenica.mobileffmpeg.FFmpeg.RETURN_CODE_CANCEL;
-import static com.arthenica.mobileffmpeg.FFmpeg.RETURN_CODE_SUCCESS;
+import static com.arthenica.mobileffmpeg.Config.RETURN_CODE_CANCEL;
+import static com.arthenica.mobileffmpeg.Config.RETURN_CODE_SUCCESS;
 import static com.arthenica.mobileffmpeg.test.MainActivity.TAG;
 
 public class SubtitleTabFragment extends Fragment {
@@ -59,54 +60,42 @@ public class SubtitleTabFragment extends Fragment {
         BURNING
     }
 
-    private MainActivity mainActivity;
     private VideoView videoView;
     private AlertDialog createProgressDialog;
     private AlertDialog burnProgressDialog;
     private Statistics statistics;
     private State state;
 
-    @Override
-    public View onCreateView(@NonNull final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) {
-        return inflater.inflate(R.layout.fragment_subtitle_tab, container, false);
+    public SubtitleTabFragment() {
+        super(R.layout.fragment_subtitle_tab);
     }
 
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
-        if (getView() != null) {
-            View burnSubtitlesButton = getView().findViewById(R.id.burnSubtitlesButton);
-            burnSubtitlesButton.setOnClickListener(new View.OnClickListener() {
+        View burnSubtitlesButton = view.findViewById(R.id.burnSubtitlesButton);
+        burnSubtitlesButton.setOnClickListener(new View.OnClickListener() {
 
-                @Override
-                public void onClick(View v) {
-                    burnSubtitles();
-                }
-            });
+            @Override
+            public void onClick(View v) {
+                burnSubtitles();
+            }
+        });
 
-            videoView = getView().findViewById(R.id.videoPlayerFrame);
-        }
+        videoView = view.findViewById(R.id.videoPlayerFrame);
 
         state = State.IDLE;
     }
 
     @Override
-    public void setUserVisibleHint(boolean isVisibleToUser) {
-        super.setUserVisibleHint(isVisibleToUser);
-        if (isVisibleToUser) {
-            setActive();
-        }
+    public void onResume() {
+        super.onResume();
+        setActive();
     }
 
-    public void setMainActivity(MainActivity mainActivity) {
-        this.mainActivity = mainActivity;
-    }
-
-    public static SubtitleTabFragment newInstance(final MainActivity mainActivity) {
-        final SubtitleTabFragment fragment = new SubtitleTabFragment();
-        fragment.setMainActivity(mainActivity);
-        return fragment;
+    public static SubtitleTabFragment newInstance() {
+        return new SubtitleTabFragment();
     }
 
     public void enableLogCallback() {
@@ -138,9 +127,9 @@ public class SubtitleTabFragment extends Fragment {
     }
 
     public void burnSubtitles() {
-        final File image1File = new File(mainActivity.getCacheDir(), "colosseum.jpg");
-        final File image2File = new File(mainActivity.getCacheDir(), "pyramid.jpg");
-        final File image3File = new File(mainActivity.getCacheDir(), "tajmahal.jpg");
+        final File image1File = new File(requireContext().getCacheDir(), "colosseum.jpg");
+        final File image2File = new File(requireContext().getCacheDir(), "pyramid.jpg");
+        final File image3File = new File(requireContext().getCacheDir(), "tajmahal.jpg");
         final File videoFile = getVideoFile();
         final File videoWithSubtitlesFile = getVideoWithSubtitlesFile();
 
@@ -161,10 +150,10 @@ public class SubtitleTabFragment extends Fragment {
 
             showCreateProgressDialog();
 
-            mainActivity.resourceToFile(R.drawable.colosseum, image1File);
-            mainActivity.resourceToFile(R.drawable.pyramid, image2File);
-            mainActivity.resourceToFile(R.drawable.tajmahal, image3File);
-            mainActivity.rawResourceToFile(R.raw.subtitle, getSubtitleFile());
+            ResourcesUtil.resourceToFile(getResources(), R.drawable.colosseum, image1File);
+            ResourcesUtil.resourceToFile(getResources(), R.drawable.pyramid, image2File);
+            ResourcesUtil.resourceToFile(getResources(), R.drawable.tajmahal, image3File);
+            ResourcesUtil.rawResourceToFile(getResources(), R.raw.subtitle, getSubtitleFile());
 
             final String ffmpegCommand = Video.generateEncodeVideoScript(image1File.getAbsolutePath(), image2File.getAbsolutePath(), image3File.getAbsolutePath(), videoFile.getAbsolutePath(), "mpeg4", "");
 
@@ -172,14 +161,12 @@ public class SubtitleTabFragment extends Fragment {
 
             state = State.CREATING;
 
-            MainActivity.executeAsync(new RunCallback() {
+            MainActivity.executeAsync(new SingleExecuteCallback() {
 
                 @Override
-                public void apply(final int returnCode) {
+                public void apply(final int returnCode, final String commandOutput) {
                     Log.d(TAG, String.format("FFmpeg process exited with rc %d", returnCode));
 
-                    state = State.IDLE;
-
                     hideCreateProgressDialog();
 
                     MainActivity.addUIAction(new Callable() {
@@ -198,14 +185,12 @@ public class SubtitleTabFragment extends Fragment {
 
                                 state = State.BURNING;
 
-                                MainActivity.executeAsync(new RunCallback() {
+                                MainActivity.executeAsync(new SingleExecuteCallback() {
 
                                     @Override
-                                    public void apply(final int returnCode) {
+                                    public void apply(final int returnCode, final String commandOutput) {
                                         Log.d(TAG, String.format("FFmpeg process exited with rc %d", returnCode));
 
-                                        state = State.IDLE;
-
                                         hideBurnProgressDialog();
 
                                         MainActivity.addUIAction(new Callable() {
@@ -216,11 +201,11 @@ public class SubtitleTabFragment extends Fragment {
                                                     Log.d(TAG, "Burn subtitles completed successfully; playing video.");
                                                     playVideo();
                                                 } else if (returnCode == RETURN_CODE_CANCEL) {
-                                                    Popup.show(mainActivity, "Burn subtitles operation cancelled.");
-                                                    Log.d(TAG, "Burn subtitles operation cancelled");
+                                                    Popup.show(requireContext(), "Burn subtitles operation cancelled.");
+                                                    Log.e(TAG, "Burn subtitles operation cancelled");
                                                 } else {
-                                                    Popup.show(mainActivity, "Burn subtitles failed. Please check log for the details.");
-                                                    Log.d(TAG, String.format("Burn subtitles failed with rc=%d", returnCode));
+                                                    Popup.show(requireContext(), "Burn subtitles failed. Please check log for the details.");
+                                                    Log.e(TAG, String.format("Burn subtitles failed with rc=%d", returnCode));
                                                 }
 
                                                 return null;
@@ -230,11 +215,11 @@ public class SubtitleTabFragment extends Fragment {
                                 }, burnSubtitlesCommand);
 
                             } else if (returnCode == RETURN_CODE_CANCEL) {
-                                Popup.show(mainActivity, "Create operation cancelled.");
-                                Log.d(TAG, "Create operation cancelled");
+                                Popup.show(requireContext(), "Create operation cancelled.");
+                                Log.e(TAG, "Create operation cancelled");
                             } else {
-                                Popup.show(mainActivity, "Create video failed. Please check log for the details.");
-                                Log.d(TAG, String.format("Create failed with rc=%d", returnCode));
+                                Popup.show(requireContext(), "Create video failed. Please check log for the details.");
+                                Log.e(TAG, String.format("Create failed with rc=%d", returnCode));
                             }
 
                             return null;
@@ -245,12 +230,12 @@ public class SubtitleTabFragment extends Fragment {
 
         } catch (IOException e) {
             Log.e(TAG, "Burn subtitles failed", e);
-            Popup.show(mainActivity, "Burn subtitles failed");
+            Popup.show(requireContext(), "Burn subtitles failed");
         }
     }
 
     protected void playVideo() {
-        MediaController mediaController = new MediaController(mainActivity);
+        MediaController mediaController = new MediaController(requireContext());
         mediaController.setAnchorView(videoView);
         videoView.setVideoURI(Uri.parse("file://" + getVideoWithSubtitlesFile().getAbsolutePath()));
         videoView.setMediaController(mediaController);
@@ -274,22 +259,22 @@ public class SubtitleTabFragment extends Fragment {
     }
 
     public File getSubtitleFile() {
-        return new File(mainActivity.getCacheDir(), "subtitle.srt");
+        return new File(requireContext().getCacheDir(), "subtitle.srt");
     }
 
     public File getVideoFile() {
-        return new File(mainActivity.getFilesDir(), "video.mp4");
+        return new File(requireContext().getFilesDir(), "video.mp4");
     }
 
     public File getVideoWithSubtitlesFile() {
-        return new File(mainActivity.getFilesDir(), "video-with-subtitles.mp4");
+        return new File(requireContext().getFilesDir(), "video-with-subtitles.mp4");
     }
 
     public void setActive() {
-        android.util.Log.i(MainActivity.TAG, "Subtitle Tab Activated");
+        Log.i(MainActivity.TAG, "Subtitle Tab Activated");
         enableLogCallback();
         enableStatisticsCallback();
-        Popup.show(mainActivity, Tooltip.SUBTITLE_TEST_TOOLTIP_TEXT);
+        Popup.show(requireContext(), Tooltip.SUBTITLE_TEST_TOOLTIP_TEXT);
     }
 
     protected void showCreateProgressDialog() {
@@ -298,7 +283,7 @@ public class SubtitleTabFragment extends Fragment {
         statistics = null;
         Config.resetStatistics();
 
-        createProgressDialog = mainActivity.createCancellableProgressDialog("Creating video", new View.OnClickListener() {
+        createProgressDialog = DialogUtil.createCancellableProgressDialog(requireContext(), "Creating video", new View.OnClickListener() {
 
             @Override
             public void onClick(View v) {
@@ -342,7 +327,7 @@ public class SubtitleTabFragment extends Fragment {
         statistics = null;
         Config.resetStatistics();
 
-        burnProgressDialog = mainActivity.createCancellableProgressDialog("Burning subtitles", new View.OnClickListener() {
+        burnProgressDialog = DialogUtil.createCancellableProgressDialog(requireContext(), "Burning subtitles", new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 FFmpeg.cancel();

android/test-app/src/main/java/com/arthenica/mobileffmpeg/test/Tooltip.java

@@ -39,4 +39,7 @@ public interface Tooltip {
     // VID.STAB TEST
     String VIDSTAB_TEST_TOOLTIP_TEXT = "Click the button to stabilize video. Original video will play above and stabilized video will play below";
 
+    // PIPE TEST
+    String PIPE_TEST_TOOLTIP_TEXT = "Click the button to create a video using pipe redirection. Created video will play inside the frame below";
+
 }

android/test-app/src/main/java/com/arthenica/mobileffmpeg/test/VidStabTabFragment.java

@@ -23,78 +23,68 @@ import android.app.AlertDialog;
 import android.media.MediaPlayer;
 import android.net.Uri;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
-import android.view.LayoutInflater;
+import android.util.Log;
 import android.view.View;
-import android.view.ViewGroup;
 import android.widget.MediaController;
 import android.widget.VideoView;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
 import com.arthenica.mobileffmpeg.Config;
 import com.arthenica.mobileffmpeg.LogCallback;
 import com.arthenica.mobileffmpeg.LogMessage;
-import com.arthenica.mobileffmpeg.util.RunCallback;
+import com.arthenica.mobileffmpeg.util.DialogUtil;
+import com.arthenica.mobileffmpeg.util.ResourcesUtil;
+import com.arthenica.mobileffmpeg.util.SingleExecuteCallback;
 
 import java.io.File;
 import java.io.IOException;
 import java.util.concurrent.Callable;
 
-import static com.arthenica.mobileffmpeg.FFmpeg.RETURN_CODE_SUCCESS;
+import static com.arthenica.mobileffmpeg.Config.RETURN_CODE_SUCCESS;
 import static com.arthenica.mobileffmpeg.test.MainActivity.TAG;
 
 public class VidStabTabFragment extends Fragment {
 
-    private MainActivity mainActivity;
     private VideoView videoView;
     private VideoView stabilizedVideoView;
     private AlertDialog createProgressDialog;
     private AlertDialog stabilizeProgressDialog;
 
-    @Override
-    public View onCreateView(@NonNull final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) {
-        return inflater.inflate(R.layout.fragment_vidstab_tab, container, false);
+    public VidStabTabFragment() {
+        super(R.layout.fragment_vidstab_tab);
     }
 
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
-        if (getView() != null) {
-            View stabilizeVideoButton = getView().findViewById(R.id.stabilizeVideoButton);
-            stabilizeVideoButton.setOnClickListener(new View.OnClickListener() {
+        View stabilizeVideoButton = view.findViewById(R.id.stabilizeVideoButton);
+        stabilizeVideoButton.setOnClickListener(new View.OnClickListener() {
 
-                @Override
-                public void onClick(View v) {
-                    stabilizeVideo();
-                }
-            });
+            @Override
+            public void onClick(View v) {
+                stabilizeVideo();
+            }
+        });
 
-            videoView = getView().findViewById(R.id.videoPlayerFrame);
-            stabilizedVideoView = getView().findViewById(R.id.stabilizedVideoPlayerFrame);
-        }
+        videoView = view.findViewById(R.id.videoPlayerFrame);
+        stabilizedVideoView = view.findViewById(R.id.stabilizedVideoPlayerFrame);
 
-        createProgressDialog = mainActivity.createProgressDialog("Creating video");
-        stabilizeProgressDialog = mainActivity.createProgressDialog("Stabilizing video");
+        createProgressDialog = DialogUtil.createProgressDialog(requireContext(), "Creating video");
+        stabilizeProgressDialog = DialogUtil.createProgressDialog(requireContext(), "Stabilizing video");
     }
 
     @Override
-    public void setUserVisibleHint(boolean isVisibleToUser) {
-        super.setUserVisibleHint(isVisibleToUser);
-        if (isVisibleToUser) {
-            setActive();
-        }
+    public void onResume() {
+        super.onResume();
+        setActive();
     }
 
-    public void setMainActivity(MainActivity mainActivity) {
-        this.mainActivity = mainActivity;
-    }
-
-    public static VidStabTabFragment newInstance(final MainActivity mainActivity) {
-        final VidStabTabFragment fragment = new VidStabTabFragment();
-        fragment.setMainActivity(mainActivity);
-        return fragment;
+    public static VidStabTabFragment newInstance() {
+        return new VidStabTabFragment();
     }
 
     public void enableLogCallback() {
@@ -108,9 +98,9 @@ public class VidStabTabFragment extends Fragment {
     }
 
     public void stabilizeVideo() {
-        final File image1File = new File(mainActivity.getCacheDir(), "colosseum.jpg");
-        final File image2File = new File(mainActivity.getCacheDir(), "pyramid.jpg");
-        final File image3File = new File(mainActivity.getCacheDir(), "tajmahal.jpg");
+        final File image1File = new File(requireContext().getCacheDir(), "colosseum.jpg");
+        final File image2File = new File(requireContext().getCacheDir(), "pyramid.jpg");
+        final File image3File = new File(requireContext().getCacheDir(), "tajmahal.jpg");
         final File shakeResultsFile = getShakeResultsFile();
         final File videoFile = getVideoFile();
         final File stabilizedVideoFile = getStabilizedVideoFile();
@@ -135,18 +125,18 @@ public class VidStabTabFragment extends Fragment {
 
             showCreateProgressDialog();
 
-            mainActivity.resourceToFile(R.drawable.colosseum, image1File);
-            mainActivity.resourceToFile(R.drawable.pyramid, image2File);
-            mainActivity.resourceToFile(R.drawable.tajmahal, image3File);
+            ResourcesUtil.resourceToFile(getResources(), R.drawable.colosseum, image1File);
+            ResourcesUtil.resourceToFile(getResources(), R.drawable.pyramid, image2File);
+            ResourcesUtil.resourceToFile(getResources(), R.drawable.tajmahal, image3File);
 
             final String ffmpegCommand = Video.generateShakingVideoScript(image1File.getAbsolutePath(), image2File.getAbsolutePath(), image3File.getAbsolutePath(), videoFile.getAbsolutePath());
 
             android.util.Log.d(TAG, String.format("FFmpeg process started with arguments\n'%s'", ffmpegCommand));
 
-            MainActivity.executeAsync(new RunCallback() {
+            MainActivity.executeAsync(new SingleExecuteCallback() {
 
                 @Override
-                public void apply(final int returnCode) {
+                public void apply(final int returnCode, final String commandOutput) {
                     android.util.Log.d(TAG, String.format("FFmpeg process exited with rc %d", returnCode));
 
                     hideCreateProgressDialog();
@@ -165,10 +155,10 @@ public class VidStabTabFragment extends Fragment {
 
                                 android.util.Log.d(TAG, String.format("FFmpeg process started with arguments\n'%s'", analyzeVideoCommand));
 
-                                MainActivity.executeAsync(new RunCallback() {
+                                MainActivity.executeAsync(new SingleExecuteCallback() {
 
                                     @Override
-                                    public void apply(final int returnCode) {
+                                    public void apply(final int returnCode, final String commandOutput) {
                                         android.util.Log.d(TAG, String.format("FFmpeg process exited with rc %d", returnCode));
 
                                         if (returnCode == RETURN_CODE_SUCCESS) {
@@ -176,10 +166,10 @@ public class VidStabTabFragment extends Fragment {
 
                                             android.util.Log.d(TAG, String.format("FFmpeg process started with arguments\n'%s'", stabilizeVideoCommand));
 
-                                            MainActivity.executeAsync(new RunCallback() {
+                                            MainActivity.executeAsync(new SingleExecuteCallback() {
 
                                                 @Override
-                                                public void apply(final int returnCode) {
+                                                public void apply(final int returnCode, final String commandOutput) {
                                                     android.util.Log.d(TAG, String.format("FFmpeg process exited with rc %d", returnCode));
 
                                                     hideStabilizeProgressDialog();
@@ -193,7 +183,7 @@ public class VidStabTabFragment extends Fragment {
                                                                 playVideo();
                                                                 playStabilizedVideo();
                                                             } else {
-                                                                Popup.show(mainActivity, "Stabilize video failed. Please check log for the details.");
+                                                                Popup.show(requireContext(), "Stabilize video failed. Please check log for the details.");
                                                                 android.util.Log.d(TAG, String.format("Stabilize video failed with rc=%d", returnCode));
                                                             }
 
@@ -205,14 +195,14 @@ public class VidStabTabFragment extends Fragment {
 
                                         } else {
                                             hideStabilizeProgressDialog();
-                                            Popup.show(mainActivity, "Stabilize video failed. Please check log for the details.");
+                                            Popup.show(requireContext(), "Stabilize video failed. Please check log for the details.");
                                             android.util.Log.d(TAG, String.format("Stabilize video failed with rc=%d", returnCode));
                                         }
                                     }
                                 }, analyzeVideoCommand);
 
                             } else {
-                                Popup.show(mainActivity, "Create video failed. Please check log for the details.");
+                                Popup.show(requireContext(), "Create video failed. Please check log for the details.");
                                 android.util.Log.d(TAG, String.format("Create failed with rc=%d", returnCode));
                             }
 
@@ -224,12 +214,12 @@ public class VidStabTabFragment extends Fragment {
 
         } catch (IOException e) {
             android.util.Log.e(TAG, "Stabilize video failed", e);
-            Popup.show(mainActivity, "Stabilize video failed");
+            Popup.show(requireContext(), "Stabilize video failed");
         }
     }
 
     protected void playVideo() {
-        MediaController mediaController = new MediaController(mainActivity);
+        MediaController mediaController = new MediaController(requireContext());
         mediaController.setAnchorView(videoView);
         videoView.setVideoURI(Uri.parse("file://" + getVideoFile().getAbsolutePath()));
         videoView.setMediaController(mediaController);
@@ -253,7 +243,7 @@ public class VidStabTabFragment extends Fragment {
     }
 
     protected void playStabilizedVideo() {
-        MediaController mediaController = new MediaController(mainActivity);
+        MediaController mediaController = new MediaController(requireContext());
         mediaController.setAnchorView(stabilizedVideoView);
         stabilizedVideoView.setVideoURI(Uri.parse("file://" + getStabilizedVideoFile().getAbsolutePath()));
         stabilizedVideoView.setMediaController(mediaController);
@@ -277,21 +267,21 @@ public class VidStabTabFragment extends Fragment {
     }
 
     public File getShakeResultsFile() {
-        return new File(mainActivity.getCacheDir(), "transforms.trf");
+        return new File(requireContext().getCacheDir(), "transforms.trf");
     }
 
     public File getVideoFile() {
-        return new File(mainActivity.getFilesDir(), "video.mp4");
+        return new File(requireContext().getFilesDir(), "video.mp4");
     }
 
     public File getStabilizedVideoFile() {
-        return new File(mainActivity.getFilesDir(), "video-stabilized.mp4");
+        return new File(requireContext().getFilesDir(), "video-stabilized.mp4");
     }
 
     public void setActive() {
-        android.util.Log.i(MainActivity.TAG, "VidStab Tab Activated");
+        Log.i(MainActivity.TAG, "VidStab Tab Activated");
         enableLogCallback();
-        Popup.show(mainActivity, Tooltip.VIDSTAB_TEST_TOOLTIP_TEXT);
+        Popup.show(requireContext(), Tooltip.VIDSTAB_TEST_TOOLTIP_TEXT);
     }
 
     protected void showCreateProgressDialog() {

android/test-app/src/main/java/com/arthenica/mobileffmpeg/test/Video.java

@@ -19,19 +19,42 @@
 
 package com.arthenica.mobileffmpeg.test;
 
+import java.util.Locale;
+
 /**
- * <p>Generates an FFmpeg command to create a 640x427 video from provided images.
+ * <p>Generates FFmpeg scripts to create videos from provided images.
  *
  * @author Taner Sener
  */
 public class Video {
 
-    public static String generateEncodeVideoScript(final String image1Path, final String image2Path, final String image3Path, final String videoFilePath, final String videoCodec, final String customOptions) {
+    static String generateCreateVideoWithPipesScript(final String image1Pipe, final String image2Pipe, final String image3Pipe, final String videoFilePath) {
         return
-                "-hide_banner -y -loop 1 -i " + image1Path + " " +
-                        "-loop 1 -i " + image2Path + " " +
-                        "-loop 1 -i " + image3Path + " " +
-                        "-filter_complex " +
+                "-hide_banner -y -i \"" + image1Pipe + "\" " +
+                        "-i '" + image2Pipe + "' " +
+                        "-i " + image3Pipe + " " +
+                        "-filter_complex \"" +
+                        "[0:v]loop=loop=-1:size=1:start=0,setpts=PTS-STARTPTS,scale=w=\'if(gte(iw/ih,640/427),min(iw,640),-1)\':h=\'if(gte(iw/ih,640/427),-1,min(ih,427))\',scale=trunc(iw/2)*2:trunc(ih/2)*2,setsar=sar=1/1,split=2[stream1out1][stream1out2];" +
+                        "[1:v]loop=loop=-1:size=1:start=0,setpts=PTS-STARTPTS,scale=w=\'if(gte(iw/ih,640/427),min(iw,640),-1)\':h=\'if(gte(iw/ih,640/427),-1,min(ih,427))\',scale=trunc(iw/2)*2:trunc(ih/2)*2,setsar=sar=1/1,split=2[stream2out1][stream2out2];" +
+                        "[2:v]loop=loop=-1:size=1:start=0,setpts=PTS-STARTPTS,scale=w=\'if(gte(iw/ih,640/427),min(iw,640),-1)\':h=\'if(gte(iw/ih,640/427),-1,min(ih,427))\',scale=trunc(iw/2)*2:trunc(ih/2)*2,setsar=sar=1/1,split=2[stream3out1][stream3out2];" +
+                        "[stream1out1]pad=width=640:height=427:x=(640-iw)/2:y=(427-ih)/2:color=#00000000,trim=duration=3,select=lte(n\\,90)[stream1overlaid];" +
+                        "[stream1out2]pad=width=640:height=427:x=(640-iw)/2:y=(427-ih)/2:color=#00000000,trim=duration=1,select=lte(n\\,30)[stream1ending];" +
+                        "[stream2out1]pad=width=640:height=427:x=(640-iw)/2:y=(427-ih)/2:color=#00000000,trim=duration=2,select=lte(n\\,60)[stream2overlaid];" +
+                        "[stream2out2]pad=width=640:height=427:x=(640-iw)/2:y=(427-ih)/2:color=#00000000,trim=duration=1,select=lte(n\\,30),split=2[stream2starting][stream2ending];" +
+                        "[stream3out1]pad=width=640:height=427:x=(640-iw)/2:y=(427-ih)/2:color=#00000000,trim=duration=2,select=lte(n\\,60)[stream3overlaid];" +
+                        "[stream3out2]pad=width=640:height=427:x=(640-iw)/2:y=(427-ih)/2:color=#00000000,trim=duration=1,select=lte(n\\,30)[stream3starting];" +
+                        "[stream2starting][stream1ending]blend=all_expr=\'if(gte(X,(W/2)*T/1)*lte(X,W-(W/2)*T/1),B,A)\':shortest=1[stream2blended];" +
+                        "[stream3starting][stream2ending]blend=all_expr=\'if(gte(X,(W/2)*T/1)*lte(X,W-(W/2)*T/1),B,A)\':shortest=1[stream3blended];" +
+                        "[stream1overlaid][stream2blended][stream2overlaid][stream3blended][stream3overlaid]concat=n=5:v=1:a=0,scale=w=640:h=424,format=yuv420p[video]\"" +
+                        " -map [video] -vsync 2 -async 1 -c:v mpeg4 -r 30 " + videoFilePath;
+    }
+
+    static String generateEncodeVideoScript(final String image1Path, final String image2Path, final String image3Path, final String videoFilePath, final String videoCodec, final String customOptions) {
+        return
+                "-hide_banner -y -loop 1 -i \"" + image1Path + "\" " +
+                        "-loop 1 -i '" + image2Path + "' " +
+                        "-loop 1 -i \"" + image3Path + "\" " +
+                        "-filter_complex \"" +
                         "[0:v]setpts=PTS-STARTPTS,scale=w=\'if(gte(iw/ih,640/427),min(iw,640),-1)\':h=\'if(gte(iw/ih,640/427),-1,min(ih,427))\',scale=trunc(iw/2)*2:trunc(ih/2)*2,setsar=sar=1/1,split=2[stream1out1][stream1out2];" +
                         "[1:v]setpts=PTS-STARTPTS,scale=w=\'if(gte(iw/ih,640/427),min(iw,640),-1)\':h=\'if(gte(iw/ih,640/427),-1,min(ih,427))\',scale=trunc(iw/2)*2:trunc(ih/2)*2,setsar=sar=1/1,split=2[stream2out1][stream2out2];" +
                         "[2:v]setpts=PTS-STARTPTS,scale=w=\'if(gte(iw/ih,640/427),min(iw,640),-1)\':h=\'if(gte(iw/ih,640/427),-1,min(ih,427))\',scale=trunc(iw/2)*2:trunc(ih/2)*2,setsar=sar=1/1,split=2[stream3out1][stream3out2];" +
@@ -43,17 +66,17 @@ public class Video {
                         "[stream3out2]pad=width=640:height=427:x=(640-iw)/2:y=(427-ih)/2:color=#00000000,trim=duration=1,select=lte(n\\,30)[stream3starting];" +
                         "[stream2starting][stream1ending]blend=all_expr=\'if(gte(X,(W/2)*T/1)*lte(X,W-(W/2)*T/1),B,A)\':shortest=1[stream2blended];" +
                         "[stream3starting][stream2ending]blend=all_expr=\'if(gte(X,(W/2)*T/1)*lte(X,W-(W/2)*T/1),B,A)\':shortest=1[stream3blended];" +
-                        "[stream1overlaid][stream2blended][stream2overlaid][stream3blended][stream3overlaid]concat=n=5:v=1:a=0,scale=w=640:h=424,format=yuv420p[video]" +
-                        " -map [video] -vsync 2 -async 1 " + customOptions + "-c:v " + videoCodec.toLowerCase() + " -r 30 " + videoFilePath;
+                        "[stream1overlaid][stream2blended][stream2overlaid][stream3blended][stream3overlaid]concat=n=5:v=1:a=0,scale=w=640:h=424,format=yuv420p[video]\"" +
+                        " -map [video] -vsync 2 -async 1 " + customOptions + "-c:v " + videoCodec.toLowerCase(Locale.ENGLISH) + " -r 30 " + videoFilePath;
     }
 
-    public static String generateShakingVideoScript(final String image1Path, final String image2Path, final String image3Path, final String videoFilePath) {
+    static String generateShakingVideoScript(final String image1Path, final String image2Path, final String image3Path, final String videoFilePath) {
         return
-                "-hide_banner -y -loop 1 -i " + image1Path + " " +
-                        "-loop 1 -i " + image2Path + " " +
+                "-hide_banner -y -loop 1 -i \"" + image1Path + "\" " +
+                        "-loop 1 -i '" + image2Path + "' " +
                         "-loop 1 -i " + image3Path + " " +
                         "-f lavfi -i color=black:s=640x427 " +
-                        "-filter_complex " +
+                        "-filter_complex \"" +
                         "[0:v]setpts=PTS-STARTPTS,scale=w=\'if(gte(iw/ih,640/427),min(iw,640),-1)\':h=\'if(gte(iw/ih,640/427),-1,min(ih,427))\',scale=trunc(iw/2)*2:trunc(ih/2)*2,setsar=sar=1/1[stream1out];" +
                         "[1:v]setpts=PTS-STARTPTS,scale=w=\'if(gte(iw/ih,640/427),min(iw,640),-1)\':h=\'if(gte(iw/ih,640/427),-1,min(ih,427))\',scale=trunc(iw/2)*2:trunc(ih/2)*2,setsar=sar=1/1[stream2out];" +
                         "[2:v]setpts=PTS-STARTPTS,scale=w=\'if(gte(iw/ih,640/427),min(iw,640),-1)\':h=\'if(gte(iw/ih,640/427),-1,min(ih,427))\',scale=trunc(iw/2)*2:trunc(ih/2)*2,setsar=sar=1/1[stream3out];" +
@@ -63,7 +86,7 @@ public class Video {
                         "[3:v][stream1overlaid]overlay=x=\'2*mod(n,4)\':y=\'2*mod(n,2)\',trim=duration=3[stream1shaking];" +
                         "[3:v][stream2overlaid]overlay=x=\'2*mod(n,4)\':y=\'2*mod(n,2)\',trim=duration=3[stream2shaking];" +
                         "[3:v][stream3overlaid]overlay=x=\'2*mod(n,4)\':y=\'2*mod(n,2)\',trim=duration=3[stream3shaking];" +
-                        "[stream1shaking][stream2shaking][stream3shaking]concat=n=3:v=1:a=0,scale=w=640:h=424,format=yuv420p[video]" +
+                        "[stream1shaking][stream2shaking][stream3shaking]concat=n=3:v=1:a=0,scale=w=640:h=424,format=yuv420p[video]\"" +
                         " -map [video] -vsync 2 -async 1 -c:v mpeg4 -r 30 " + videoFilePath;
     }
 

android/test-app/src/main/java/com/arthenica/mobileffmpeg/test/VideoTabFragment.java

@@ -23,13 +23,9 @@ import android.app.AlertDialog;
 import android.media.MediaPlayer;
 import android.net.Uri;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
+import android.util.AndroidRuntimeException;
 import android.util.Log;
-import android.view.LayoutInflater;
 import android.view.View;
-import android.view.ViewGroup;
 import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.MediaController;
@@ -37,83 +33,77 @@ import android.widget.Spinner;
 import android.widget.TextView;
 import android.widget.VideoView;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
 import com.arthenica.mobileffmpeg.Config;
 import com.arthenica.mobileffmpeg.FFmpeg;
 import com.arthenica.mobileffmpeg.LogCallback;
 import com.arthenica.mobileffmpeg.LogMessage;
 import com.arthenica.mobileffmpeg.Statistics;
 import com.arthenica.mobileffmpeg.StatisticsCallback;
-import com.arthenica.mobileffmpeg.util.RunCallback;
+import com.arthenica.mobileffmpeg.util.DialogUtil;
+import com.arthenica.mobileffmpeg.util.ResourcesUtil;
+import com.arthenica.mobileffmpeg.util.SingleExecuteCallback;
 
 import java.io.File;
 import java.io.IOException;
 import java.math.BigDecimal;
 import java.util.concurrent.Callable;
 
-import static com.arthenica.mobileffmpeg.FFmpeg.RETURN_CODE_SUCCESS;
+import static com.arthenica.mobileffmpeg.Config.RETURN_CODE_SUCCESS;
 import static com.arthenica.mobileffmpeg.test.MainActivity.TAG;
 
 public class VideoTabFragment extends Fragment implements AdapterView.OnItemSelectedListener {
 
-    private MainActivity mainActivity;
     private VideoView videoView;
     private AlertDialog progressDialog;
     private String selectedCodec;
     private Statistics statistics;
 
-    @Override
-    public View onCreateView(@NonNull final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-        return inflater.inflate(R.layout.fragment_video_tab, container, false);
+    public VideoTabFragment() {
+        super(R.layout.fragment_video_tab);
     }
 
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
-        if (getView() != null) {
-            Spinner videoCodecSpinner = getView().findViewById(R.id.videoCodecSpinner);
-            ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(mainActivity,
-                    R.array.video_codec, R.layout.spinner_item);
-            adapter.setDropDownViewResource(R.layout.spinner_dropdown_item);
-            videoCodecSpinner.setAdapter(adapter);
-            videoCodecSpinner.setOnItemSelectedListener(this);
+        Spinner videoCodecSpinner = view.findViewById(R.id.videoCodecSpinner);
+        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(requireContext(),
+                R.array.video_codec, R.layout.spinner_item);
+        adapter.setDropDownViewResource(R.layout.spinner_dropdown_item);
+        videoCodecSpinner.setAdapter(adapter);
+        videoCodecSpinner.setOnItemSelectedListener(this);
 
-            View encodeButton = getView().findViewById(R.id.encodeButton);
-            if (encodeButton != null) {
-                encodeButton.setOnClickListener(new View.OnClickListener() {
+        View encodeButton = view.findViewById(R.id.encodeButton);
+        if (encodeButton != null) {
+            encodeButton.setOnClickListener(new View.OnClickListener() {
 
-                    @Override
-                    public void onClick(View v) {
-                        encodeVideo();
-                        // encodeWebp();
-                    }
-                });
-            }
-
-            videoView = getView().findViewById(R.id.videoPlayerFrame);
+                @Override
+                public void onClick(View v) {
+                    encodeVideo();
+                    // encodeWebp();
+                }
+            });
         }
 
-        progressDialog = mainActivity.createProgressDialog("Encoding video");
+        videoView = view.findViewById(R.id.videoPlayerFrame);
+
+        progressDialog = DialogUtil.createProgressDialog(requireContext(), "Encoding video");
 
         selectedCodec = getResources().getStringArray(R.array.video_codec)[0];
     }
 
     @Override
-    public void setUserVisibleHint(boolean isVisibleToUser) {
-        super.setUserVisibleHint(isVisibleToUser);
-        if (isVisibleToUser) {
-            setActive();
-        }
+    public void onResume() {
+        super.onResume();
+        setActive();
     }
 
-    public void setMainActivity(MainActivity mainActivity) {
-        this.mainActivity = mainActivity;
-    }
-
-    public static VideoTabFragment newInstance(final MainActivity mainActivity) {
-        final VideoTabFragment fragment = new VideoTabFragment();
-        fragment.setMainActivity(mainActivity);
-        return fragment;
+    public static VideoTabFragment newInstance() {
+        return new VideoTabFragment();
     }
 
     public void enableLogCallback() {
@@ -140,6 +130,8 @@ public class VideoTabFragment extends Fragment implements AdapterView.OnItemSele
                         return null;
                     }
                 });
+
+                throw new AndroidRuntimeException("I am test exception thrown by test application");
             }
         });
     }
@@ -155,9 +147,9 @@ public class VideoTabFragment extends Fragment implements AdapterView.OnItemSele
     }
 
     public void encodeVideo() {
-        final File image1File = new File(mainActivity.getCacheDir(), "colosseum.jpg");
-        final File image2File = new File(mainActivity.getCacheDir(), "pyramid.jpg");
-        final File image3File = new File(mainActivity.getCacheDir(), "tajmahal.jpg");
+        final File image1File = new File(requireContext().getCacheDir(), "colosseum.jpg");
+        final File image2File = new File(requireContext().getCacheDir(), "pyramid.jpg");
+        final File image3File = new File(requireContext().getCacheDir(), "tajmahal.jpg");
         final File videoFile = getVideoFile();
 
         try {
@@ -175,20 +167,24 @@ public class VideoTabFragment extends Fragment implements AdapterView.OnItemSele
 
             showProgressDialog();
 
-            mainActivity.resourceToFile(R.drawable.colosseum, image1File);
-            mainActivity.resourceToFile(R.drawable.pyramid, image2File);
-            mainActivity.resourceToFile(R.drawable.tajmahal, image3File);
+            ResourcesUtil.resourceToFile(getResources(), R.drawable.colosseum, image1File);
+            ResourcesUtil.resourceToFile(getResources(), R.drawable.pyramid, image2File);
+            ResourcesUtil.resourceToFile(getResources(), R.drawable.tajmahal, image3File);
 
             final String ffmpegCommand = Video.generateEncodeVideoScript(image1File.getAbsolutePath(), image2File.getAbsolutePath(), image3File.getAbsolutePath(), videoFile.getAbsolutePath(), getSelectedVideoCodec(), getCustomOptions());
 
             Log.d(TAG, String.format("FFmpeg process started with arguments\n'%s'", ffmpegCommand));
 
-            MainActivity.executeAsync(new RunCallback() {
+            MainActivity.executeAsync(new SingleExecuteCallback() {
 
                 @Override
-                public void apply(final int returnCode) {
+                public void apply(final int returnCode, final String commandOutput) {
                     Log.d(TAG, String.format("FFmpeg process exited with rc %d", returnCode));
 
+                    Log.d(TAG, "FFmpeg process output:");
+
+                    Config.printLastCommandOutput(Log.INFO);
+
                     hideProgressDialog();
 
                     MainActivity.addUIAction(new Callable() {
@@ -199,7 +195,7 @@ public class VideoTabFragment extends Fragment implements AdapterView.OnItemSele
                                 Log.d(TAG, "Encode completed successfully; playing video.");
                                 playVideo();
                             } else {
-                                Popup.show(mainActivity, "Encode failed. Please check log for the details.");
+                                Popup.show(requireContext(), "Encode failed. Please check log for the details.");
                                 Log.d(TAG, String.format("Encode failed with rc=%d", returnCode));
                             }
 
@@ -211,16 +207,16 @@ public class VideoTabFragment extends Fragment implements AdapterView.OnItemSele
 
         } catch (IOException e) {
             Log.e(TAG, "Encode video failed", e);
-            Popup.show(mainActivity, "Encode video failed");
+            Popup.show(requireContext(), "Encode video failed");
         }
     }
 
     protected void encodeWebp() {
-        final File imageFile = new File(mainActivity.getCacheDir(), "colosseum.jpg");
-        final File outputFile = new File(mainActivity.getFilesDir(), "video.webp");
+        final File imageFile = new File(requireContext().getCacheDir(), "colosseum.jpg");
+        final File outputFile = new File(requireContext().getFilesDir(), "video.webp");
 
         try {
-            mainActivity.resourceToFile(R.drawable.colosseum, imageFile);
+            ResourcesUtil.resourceToFile(getResources(), R.drawable.colosseum, imageFile);
 
             Log.d(TAG, "Testing VIDEO encoding with 'webp' codec");
 
@@ -233,12 +229,12 @@ public class VideoTabFragment extends Fragment implements AdapterView.OnItemSele
             Log.d(TAG, String.format("FFmpeg process exited with rc %d", returnCode));
         } catch (IOException e) {
             Log.e(TAG, "Encode webp failed", e);
-            Popup.show(mainActivity, "Encode webp failed");
+            Popup.show(requireContext(), "Encode webp failed");
         }
     }
 
     protected void playVideo() {
-        MediaController mediaController = new MediaController(mainActivity);
+        MediaController mediaController = new MediaController(requireContext());
         mediaController.setAnchorView(videoView);
         videoView.setVideoURI(Uri.parse("file://" + getVideoFile().getAbsolutePath()));
         videoView.setMediaController(mediaController);
@@ -324,7 +320,7 @@ public class VideoTabFragment extends Fragment implements AdapterView.OnItemSele
         }
 
         final String video = "video." + extension;
-        return new File(mainActivity.getFilesDir(), video);
+        return new File(requireContext().getFilesDir(), video);
     }
 
     public String getCustomOptions() {
@@ -339,24 +335,22 @@ public class VideoTabFragment extends Fragment implements AdapterView.OnItemSele
                 return "-b:v 2M ";
             case "aom":
                 return "-crf 30 -strict experimental ";
-            case "kvazaar":
-                return "-preset fast ";
             case "theora":
                 return "-qscale:v 7 ";
             case "hap":
                 return "-format hap_q ";
             default:
 
-                // mpeg4, x264, xvid
+                // kvazaar, mpeg4, x264, xvid
                 return "";
         }
     }
 
     public void setActive() {
-        android.util.Log.i(MainActivity.TAG, "Video Tab Activated");
+        Log.i(MainActivity.TAG, "Video Tab Activated");
         enableLogCallback();
         enableStatisticsCallback();
-        Popup.show(mainActivity, Tooltip.VIDEO_TEST_TOOLTIP_TEXT);
+        Popup.show(requireContext(), Tooltip.VIDEO_TEST_TOOLTIP_TEXT);
     }
 
     protected void showProgressDialog() {
@@ -393,7 +387,7 @@ public class VideoTabFragment extends Fragment implements AdapterView.OnItemSele
 
             @Override
             public Object call() {
-                VideoTabFragment.this.progressDialog = mainActivity.createProgressDialog("Encoding video");
+                VideoTabFragment.this.progressDialog = DialogUtil.createProgressDialog(requireContext(), "Encoding video");
                 return null;
             }
         });

android/test-app/src/main/java/com/arthenica/mobileffmpeg/util/AsyncCatImageTask.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2018-2019 Taner Sener
+ *
+ * This file is part of MobileFFmpeg.
+ *
+ * MobileFFmpeg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * MobileFFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.arthenica.mobileffmpeg.util;
+
+import android.os.AsyncTask;
+import android.util.Log;
+
+import java.io.IOException;
+
+import static com.arthenica.mobileffmpeg.test.MainActivity.TAG;
+
+public class AsyncCatImageTask extends AsyncTask<String, Integer, Integer> {
+
+    @Override
+    protected Integer doInBackground(String... inputs) {
+        try {
+            final String asyncCommand = "cat " + inputs[0] + " > " + inputs[1];
+            Log.d(TAG, String.format("Starting async cat image command: %s", asyncCommand));
+
+            final Process process = Runtime.getRuntime().exec(new String[]{"sh", "-c", asyncCommand});
+            int rc = process.waitFor();
+
+            Log.d(TAG, String.format("Async cat image command: %s exited with %d.", asyncCommand, rc));
+
+            return rc;
+        } catch (final IOException | InterruptedException e) {
+            Log.e(TAG, String.format("Async cat image command failed for %s.", inputs[0]), e);
+            return -1;
+        }
+    }
+
+}

android/test-app/src/main/java/com/arthenica/mobileffmpeg/util/AsyncThreadFactory.java

@@ -1,53 +0,0 @@
-/*
- * Copyright (c) 2018 Taner Sener
- *
- * This file is part of MobileFFmpeg.
- *
- * MobileFFmpeg is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * MobileFFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.arthenica.mobileffmpeg.util;
-
-import android.support.annotation.NonNull;
-
-import java.text.MessageFormat;
-import java.util.concurrent.ThreadFactory;
-import java.util.concurrent.atomic.AtomicInteger;
-
-public class AsyncThreadFactory implements ThreadFactory {
-
-    protected static final String DEFAULT_THREAD_NAME_PREFIX = "AsyncTaskThread";
-
-    protected static AtomicInteger threadCounter;
-
-    static {
-        threadCounter = new AtomicInteger(1);
-    }
-
-    private final String namePrefix;
-
-    public AsyncThreadFactory() {
-        this(DEFAULT_THREAD_NAME_PREFIX);
-    }
-
-    public AsyncThreadFactory(final String namePrefix) {
-        this.namePrefix = namePrefix;
-    }
-
-    @Override
-    public Thread newThread(@NonNull final Runnable runnable) {
-        return new Thread(runnable, MessageFormat.format("{0}-{1,number,#}", namePrefix, threadCounter.getAndIncrement()));
-    }
-
-}

android/test-app/src/main/java/com/arthenica/mobileffmpeg/util/AsynchronousTaskService.java

@@ -1,121 +0,0 @@
-/*
- * Copyright (c) 2018 Taner Sener
- *
- * This file is part of MobileFFmpeg.
- *
- * MobileFFmpeg is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * MobileFFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.arthenica.mobileffmpeg.util;
-
-import android.util.Log;
-
-import java.util.concurrent.BlockingQueue;
-import java.util.concurrent.Callable;
-import java.util.concurrent.Future;
-import java.util.concurrent.LinkedBlockingQueue;
-import java.util.concurrent.ThreadPoolExecutor;
-import java.util.concurrent.TimeUnit;
-
-public class AsynchronousTaskService {
-
-    protected static final String TAG = "mobile-ffmpeg-android";
-
-    protected final BlockingQueue<Runnable> queue;
-
-    protected final Object executorServiceLock;
-
-    protected ThreadPoolExecutor executorService;
-
-    protected int coreThreadPoolSize;
-
-    protected int maximumThreadPoolSize;
-
-    protected int keepAliveTimeInSeconds;
-
-    public AsynchronousTaskService() {
-        this(1, 5, 30);
-    }
-
-    public AsynchronousTaskService(final int coreThreadPoolSize, final int maximumThreadPoolSize, final int keepAliveTimeInSeconds) {
-        this.executorServiceLock = new Object();
-        this.queue = new LinkedBlockingQueue<>();
-        this.executorService = null;
-
-        this.coreThreadPoolSize = coreThreadPoolSize;
-        this.maximumThreadPoolSize = maximumThreadPoolSize;
-        this.keepAliveTimeInSeconds = keepAliveTimeInSeconds;
-    }
-
-    public void init(final int coreThreadPoolSize, final int maximumThreadPoolSize, final int keepAliveTimeInSeconds) {
-        this.coreThreadPoolSize = coreThreadPoolSize;
-        this.maximumThreadPoolSize = maximumThreadPoolSize;
-        this.keepAliveTimeInSeconds = keepAliveTimeInSeconds;
-    }
-
-    public void initializeExecutorService() {
-        synchronized (executorServiceLock) {
-            if (executorService != null) {
-                executorService.shutdown();
-            }
-
-            executorService = new ThreadPoolExecutor(coreThreadPoolSize, maximumThreadPoolSize, keepAliveTimeInSeconds, TimeUnit.SECONDS, queue, new AsyncThreadFactory());
-        }
-    }
-
-    public <T> Future<T> runAsynchronously(final Callable<T> callable) {
-
-        /* INITIALIZE EXECUTOR SERVICE ONLY IF NECESSARY */
-        if (executorService == null) {
-            initializeExecutorService();
-        }
-
-        final String className = callable.getClass().getSimpleName();
-
-        try {
-            return executorService.submit(callable);
-        } catch (Exception e) {
-            Log.w(TAG, String.format("Failed to run asynchronous task %s. Running it synchronously.", className), e);
-            return runSynchronously(callable);
-        }
-    }
-
-    public <T> Future<T> runSynchronously(final Callable<T> callable) {
-        T called = null;
-
-        /* INITIALIZE EXECUTOR SERVICE ONLY IF NECESSARY */
-        if (executorService == null) {
-            initializeExecutorService();
-        }
-
-        final String className = callable.getClass().getSimpleName();
-
-        try {
-            called = callable.call();
-            return new SynchronousResultFuture<>(called, true);
-        } catch (final Exception e) {
-            Log.d(TAG, "Failed to run asynchronous task " + className + " synchronously.", e);
-            return new SynchronousResultFuture<>(called, true);
-        }
-    }
-
-    public void shutdown() {
-        if (executorService != null) {
-            synchronized (executorServiceLock) {
-                executorService.shutdown();
-            }
-        }
-    }
-
-}

android/test-app/src/main/java/com/arthenica/mobileffmpeg/util/DialogUtil.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2019 Alexander Berezhnoi
+ *
+ * This file is part of MobileFFmpeg.
+ *
+ * MobileFFmpeg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * MobileFFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.arthenica.mobileffmpeg.util;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+
+import com.arthenica.mobileffmpeg.test.R;
+
+public class DialogUtil {
+
+    public static AlertDialog createProgressDialog(Context context, final String text) {
+        AlertDialog.Builder builder = new AlertDialog.Builder(context);
+        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+        if (inflater != null) {
+            View dialogView = inflater.inflate(R.layout.progress_dialog_layout, null);
+            builder.setView(dialogView);
+
+            TextView textView = dialogView.findViewById(R.id.progressDialogText);
+            if (textView != null) {
+                textView.setText(text);
+            }
+        }
+        builder.setCancelable(false);
+        return builder.create();
+    }
+
+    public static AlertDialog createCancellableProgressDialog(Context context, final String text, final View.OnClickListener onClickListener) {
+        AlertDialog.Builder builder = new AlertDialog.Builder(context);
+        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+        if (inflater != null) {
+            View dialogView = inflater.inflate(R.layout.cancellable_progress_dialog_layout, null);
+            builder.setView(dialogView);
+
+            TextView textView = dialogView.findViewById(R.id.progressDialogText);
+            if (textView != null) {
+                textView.setText(text);
+            }
+            Button cancelButton = dialogView.findViewById(R.id.cancelButton);
+            if (cancelButton != null) {
+                cancelButton.setOnClickListener(onClickListener);
+            }
+        }
+        builder.setCancelable(false);
+        return builder.create();
+    }
+
+}

android/test-app/src/main/java/com/arthenica/mobileffmpeg/util/ResourcesUtil.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2019 Alexander Berezhnoi
+ *
+ * This file is part of MobileFFmpeg.
+ *
+ * MobileFFmpeg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * MobileFFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.arthenica.mobileffmpeg.util;
+
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.util.Log;
+
+import com.arthenica.mobileffmpeg.test.MainActivity;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+public class ResourcesUtil {
+    public static void resourceToFile(Resources resources, final int resourceId, final File file) throws IOException {
+        Bitmap bitmap = BitmapFactory.decodeResource(resources, resourceId);
+
+        if (file.exists()) {
+            file.delete();
+        }
+
+        FileOutputStream outputStream = new FileOutputStream(file);
+        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);
+        outputStream.flush();
+        outputStream.close();
+    }
+
+    public static void rawResourceToFile(Resources resources, final int resourceId, final File file) throws IOException {
+        final InputStream inputStream = resources.openRawResource(resourceId);
+        if (file.exists()) {
+            file.delete();
+        }
+        final FileOutputStream outputStream = new FileOutputStream(file);
+
+        try {
+            final byte[] buffer = new byte[1024];
+            int readSize;
+
+            while ((readSize = inputStream.read(buffer)) > 0) {
+                outputStream.write(buffer, 0, readSize);
+            }
+        } catch (final IOException e) {
+            Log.e(MainActivity.TAG, "Saving raw resource failed.", e);
+        } finally {
+            inputStream.close();
+            outputStream.flush();
+            outputStream.close();
+        }
+    }
+}

android/test-app/src/main/java/com/arthenica/mobileffmpeg/util/SynchronousResultFuture.java

@@ -1,63 +0,0 @@
-/*
- * Copyright (c) 2018 Taner Sener
- *
- * This file is part of MobileFFmpeg.
- *
- * MobileFFmpeg is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * MobileFFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with MobileFFmpeg.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.arthenica.mobileffmpeg.util;
-
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Future;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
-
-public class SynchronousResultFuture<V> implements Future<V> {
-
-    protected final V v;
-
-    protected final boolean completed;
-
-    public SynchronousResultFuture(final V v, final boolean completed) {
-        this.v = v;
-        this.completed = completed;
-    }
-
-    @Override
-    public boolean cancel(final boolean mayInterruptIfRunning) {
-        return false;
-    }
-
-    @Override
-    public boolean isCancelled() {
-        return !completed;
-    }
-
-    @Override
-    public boolean isDone() {
-        return completed;
-    }
-
-    @Override
-    public V get() throws InterruptedException, ExecutionException {
-        return v;
-    }
-
-    @Override
-    public V get(final long timeout, final TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
-        return v;
-    }
-
-}