update example app to show podcast, soundbite, and radio

Source/Engine/AudioEngine.swift

@@ -173,7 +173,6 @@ class AudioEngine: AudioEngineProtocol {
         Timer.scheduledTimer(withTimeInterval: timeInterval, repeats: false) { [weak self] (timer: Timer) in
             guard let self = self else { return }
             guard self.playingStatus != .ended else {
-//                Log.test("END TIMER")
                 self.delegate = nil
                 return
             }

Source/Engine/AudioStreamEngine.swift

@@ -71,7 +71,6 @@ class AudioStreamEngine: AudioEngine {
     
     private var numberOfBuffersScheduledInTotal = 0 {
         didSet {
-//            Log.test(numberOfBuffersScheduledInTotal)
             Log.debug("number of buffers scheduled in total: \(numberOfBuffersScheduledInTotal)")
             if numberOfBuffersScheduledInTotal == 0 {
                 pause()
@@ -87,7 +86,6 @@ class AudioStreamEngine: AudioEngine {
     private var numberOfBuffersScheduledFromPoll = 0 {
         didSet {
             if numberOfBuffersScheduledFromPoll > MAX_POLL_BUFFER_COUNT {
-//                Log.test("🛑  🛑   STOP POLLING")
                 shouldPollForNextBuffer = false
             }
             
@@ -151,7 +149,7 @@ class AudioStreamEngine: AudioEngine {
             guard let self = self else { return }
             guard self.playingStatus != .ended else { return }
             
-            self.pollForNextBuffer()
+            self.pollForNextBufferRecursive()
             self.updateNetworkBufferRange()
             self.updateNeedle()
             self.updateIsPlaying()
@@ -164,15 +162,8 @@ class AudioStreamEngine: AudioEngine {
     //Called when
     //1. First time audio is finally parsed
     //2. When we run to the end of the network buffer and we're waiting again
-    private func pollForNextBuffer() {
-        guard shouldPollForNextBuffer else { return }
-        
-//        Log.test("POLL INIT")
-        pollForNextBufferRecursive()
-    }
-    
     private func pollForNextBufferRecursive() {
-//        Log.test("POLL")
+        guard shouldPollForNextBuffer else { return }
         
         do {
             var nextScheduledBuffer: AVAudioPCMBuffer! = try converter.pullBuffer()
@@ -183,17 +174,15 @@ class AudioStreamEngine: AudioEngine {
             queue.async { [weak self] in
                 if #available(iOS 11.0, *) {
                     // to make sure the pcm buffers are properly free'd from memory we need to nil them after the player has used them
-                    self?.playerNode.scheduleBuffer(nextScheduledBuffer, completionCallbackType: .dataConsumed, completionHandler: { (_) in
+                    self?.playerNode.scheduleBuffer(nextScheduledBuffer, completionCallbackType: .dataRendered, completionHandler: { (_) in
                         nextScheduledBuffer = nil
                         self?.numberOfBuffersScheduledInTotal -= 1
-//                        Log.test("POLL DATA RENDERED")
                         self?.pollForNextBufferRecursive()
                     })
                 } else {
                     self?.playerNode.scheduleBuffer(nextScheduledBuffer) {
                         nextScheduledBuffer = nil
                         self?.numberOfBuffersScheduledInTotal -= 1
-//                        Log.test("POLL OLD")
                         self?.pollForNextBufferRecursive()
                     }
                 }

SwiftAudioPlayer.podspec

@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'SwiftAudioPlayer'
-  s.version          = '4.2.0'
+  s.version          = '4.1.0'
   s.summary          = 'SwiftAudioPlayer is a Swift based audio player that can handle streaming from a remote location and audio manipulation.'
 
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