AudioTransport::NeedMorePlayData is no longer called from different threads using OpenSL ES on Andr…

webrtc/modules/audio_device/android/opensles_player.h

 /*
  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 68 matching lines @@
  private:
   // These callback methods are called when data is required for playout.
   // They are both called from an internal "OpenSL ES thread" which is not
   // attached to the Dalvik VM.
   static void SimpleBufferQueueCallback(SLAndroidSimpleBufferQueueItf caller,
                                         void* context);
   void FillBufferQueue();
   // Reads audio data in PCM format using the AudioDeviceBuffer.
   // Can be called both on the main thread (during Start()) and from the
   // internal audio thread while output streaming is active.
-  void EnqueuePlayoutData();
+  // If the |silence| flag is set, the audio is filled with zeros instead of
+  // asking the WebRTC layer for real audio data. This procedure is also known
+  // as audio priming.
+  void EnqueuePlayoutData(bool silence);
 
   // Allocate memory for audio buffers which will be used to render audio
   // via the SLAndroidSimpleBufferQueueItf interface.
   void AllocateDataBuffers();
 
   // Obtaines the SL Engine Interface from the existing global Engine object.
   // The interface exposes creation methods of all the OpenSL ES object types.
   // This method defines the |engine_| member variable.
   bool ObtainEngineInterface();
 
@@ skipping 84 matching lines @@
   // properties. This interface is supported on the Audio Player object.
   SLVolumeItf volume_;
 
   // Last time the OpenSL ES layer asked for audio data to play out.
   uint32_t last_play_time_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_DEVICE_ANDROID_OPENSLES_PLAYER_H_