Merge pull request #24 from gangverk/master

Add support for HE-AAC

Audjustable.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "Audjustable"
-  s.version      = "0.0.4"
+  s.version      = "0.0.5"
   s.summary      = "A fast and extensible audio streamer for iOS and OSX with support for gapless playback and custom (non-HTTP) sources."
   s.homepage     = "http://tumtumtum.github.com/audjustable/"
   s.license      = 'MIT'

Audjustable/Classes/AudioPlayer/AudioPlayer.m

@@ -605,12 +605,13 @@ static void AudioQueueIsRunningCallbackProc(void* userData, AudioQueueRef audioQ
             break;
         case kAudioFileStreamProperty_DataFormat:
         {
-            AudioStreamBasicDescription newBasicDescription;
-            UInt32 size = sizeof(newBasicDescription);
-            
-            AudioFileStreamGetProperty(inAudioFileStream, kAudioFileStreamProperty_DataFormat, &size, &newBasicDescription);
-            
-            currentlyReadingEntry->audioStreamBasicDescription = newBasicDescription;
+            if (currentlyReadingEntry->audioStreamBasicDescription.mSampleRate == 0) {
+                AudioStreamBasicDescription newBasicDescription;
+                UInt32 size = sizeof(newBasicDescription);
+
+                AudioFileStreamGetProperty(inAudioFileStream, kAudioFileStreamProperty_DataFormat, &size, &newBasicDescription);
+                currentlyReadingEntry->audioStreamBasicDescription = newBasicDescription;
+            }
             
             currentlyReadingEntry->sampleRate = currentlyReadingEntry->audioStreamBasicDescription.mSampleRate;
             currentlyReadingEntry->packetDuration = currentlyReadingEntry->audioStreamBasicDescription.mFramesPerPacket / currentlyReadingEntry->sampleRate;
@@ -652,6 +653,44 @@ static void AudioQueueIsRunningCallbackProc(void* userData, AudioQueueRef audioQ
             discontinuous = YES;
         }
             break;
+        case kAudioFileStreamProperty_FormatList:
+        {
+            Boolean outWriteable;
+            UInt32 formatListSize;
+            OSStatus err = AudioFileStreamGetPropertyInfo(inAudioFileStream, kAudioFileStreamProperty_FormatList, &formatListSize, &outWriteable);
+            if (err)
+            {
+                break;
+            }
+
+            AudioFormatListItem *formatList = malloc(formatListSize);
+            err = AudioFileStreamGetProperty(inAudioFileStream, kAudioFileStreamProperty_FormatList, &formatListSize, formatList);
+            if (err)
+            {
+                free(formatList);
+                break;
+            }
+
+            for (int i = 0; i * sizeof(AudioFormatListItem) < formatListSize; i += sizeof(AudioFormatListItem))
+            {
+                AudioStreamBasicDescription pasbd = formatList[i].mASBD;
+
+                if (pasbd.mFormatID == kAudioFormatMPEG4AAC_HE ||
+                    pasbd.mFormatID == kAudioFormatMPEG4AAC_HE_V2)
+                {
+                    //
+                    // We've found HE-AAC, remember this to tell the audio queue
+                    // when we construct it.
+                    //
+#if !TARGET_IPHONE_SIMULATOR
+                    currentlyReadingEntry->audioStreamBasicDescription = pasbd;
+#endif
+                    break;
+                }
+            }
+            free(formatList);
+        }
+            break;
     }
 }
 

README.md

@@ -23,6 +23,8 @@ Download the [source](https://github.com/tumtumtum/audjustable/zipball/master) w
 
 If you would like to integrate the AudioPlayer directly into your project you only need to copy the files inside the `/Audjustable/Classes/AudioPlayer` [directory](https://github.com/tumtumtum/audjustable/tree/master/Audjustable/Classes/AudioPlayer) into your project.
 
+Audjustable is also available as a [Cooapod](http://cocoapods.org/?q=audjustable).
+
 ## Code
 
 There are two main classes.  The `DataSource` class which is the abstract base class for the various compressed audio data sources (HTTP, local file are provided). The `AudioPlayer` class manages and renders audio from a queue DataSources.