version bump to 1.1.0 (#59)

AudioStreaming.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name = 'AudioStreaming'
-  s.version = '1.0.0'
+  s.version = '1.1.0'
   s.license = 'MIT'
   s.summary = 'An AudioPlayer/Streaming library for iOS written in Swift using AVAudioEngine.'
   s.homepage = 'https://github.com/dimitris-c/AudioStreaming'

AudioStreaming.xcodeproj/project.pbxproj

@@ -722,7 +722,7 @@
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
-				MARKETING_VERSION = 1.0.0;
+				MARKETING_VERSION = 1.1.0;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				ONLY_ACTIVE_ARCH = YES;
@@ -781,7 +781,7 @@
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
-				MARKETING_VERSION = 1.0.0;
+				MARKETING_VERSION = 1.1.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				SDKROOT = iphoneos;
@@ -811,7 +811,7 @@
 					"@executable_path/Frameworks",
 					"@loader_path/Frameworks",
 				);
-				MARKETING_VERSION = 1.0.0;
+				MARKETING_VERSION = 1.1.0;
 				OTHER_LDFLAGS = "-ObjC";
 				PRODUCT_BUNDLE_IDENTIFIER = com.decimal.AudioStreaming;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
@@ -842,7 +842,7 @@
 					"@executable_path/Frameworks",
 					"@loader_path/Frameworks",
 				);
-				MARKETING_VERSION = 1.0.0;
+				MARKETING_VERSION = 1.1.0;
 				OTHER_LDFLAGS = "-ObjC";
 				PRODUCT_BUNDLE_IDENTIFIER = com.decimal.AudioStreaming;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";

AudioStreaming/Streaming/AudioPlayer/AudioPlayer.swift

@@ -108,7 +108,7 @@ open class AudioPlayer {
     private var stateBeforePaused: InternalState = .initial
 
     /// The underlying `AVAudioEngine` object
-    private let audioEngine = AVAudioEngine()
+    private let audioEngine: AVAudioEngine
     /// An `AVAudioUnit` object that represents the audio player
     private(set) var player = AVAudioUnit()
     /// An `AVAudioUnitTimePitch` that controls the playback rate of the audio engine
@@ -134,7 +134,8 @@ open class AudioPlayer {
 
     public init(configuration: AudioPlayerConfiguration = .default) {
         self.configuration = configuration.normalizeValues()
-
+        let engine = AVAudioEngine()
+        self.audioEngine = engine
         rendererContext = AudioRendererContext(configuration: configuration, outputAudioFormat: outputAudioFormat)
         playerContext = AudioPlayerContext()
         entriesQueue = PlayerQueueEntries()
@@ -150,12 +151,14 @@ open class AudioPlayer {
                                                        rendererContext: rendererContext,
                                                        outputAudioFormat: outputAudioFormat.basicStreamDescription)
 
-        frameFilterProcessor = FrameFilterProcessor(mixerNode: audioEngine.mainMixerNode)
-
         playerRenderProcessor = AudioPlayerRenderProcessor(playerContext: playerContext,
                                                            rendererContext: rendererContext,
                                                            outputAudioFormat: outputAudioFormat.basicStreamDescription)
 
+        
+        frameFilterProcessor = FrameFilterProcessor(mixerNodeProvider: {
+            engine.mainMixerNode
+        })
         configPlayerContext()
         configPlayerNode()
         setupEngine()

AudioStreaming/Streaming/AudioPlayer/Processors/FrameFilterProcessor.swift

@@ -78,14 +78,17 @@ final class FrameFilterProcessor: NSObject, FrameFiltering {
     }
 
     private let lock = UnfairLock()
-    private let mixerNode: AVAudioMixerNode
+    private let mixerNodeProvider: (() -> AVAudioMixerNode)
+    private lazy var mixerNode: AVAudioMixerNode = {
+        return mixerNodeProvider()
+    }()
 
     private(set) var entries: [FilterEntry] = []
 
     private var hasInstalledTap: Bool = false
 
-    init(mixerNode: AVAudioMixerNode) {
-        self.mixerNode = mixerNode
+    init(mixerNodeProvider: @escaping (() -> AVAudioMixerNode)) {
+        self.mixerNodeProvider = mixerNodeProvider
     }
 
     public func add(entry: FilterEntry) {