Simplified AudioOutputStream interface.

media/audio/audio_output_controller.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_AUDIO_AUDIO_OUTPUT_CONTROLLER_H_
 #define MEDIA_AUDIO_AUDIO_OUTPUT_CONTROLLER_H_
 
 #include "base/lock.h"
 #include "base/ref_counted.h"
 #include "base/scoped_ptr.h"
@@ skipping 90 matching lines @@
 
   virtual ~AudioOutputController();
 
   // Factory method for creating an AudioOutputController.
   // If successful, an audio controller thread is created. The audio device
   // will be created on the audio controller thread and when that is done
   // event handler will receive a OnCreated() call.
   static scoped_refptr<AudioOutputController> Create(
       EventHandler* event_handler,
       AudioParameters params,
-      uint32 hardware_buffer_size,    // Size of the hardware buffer.
-
       // Soft limit for buffer capacity in this controller. This parameter
       // is used only in regular latency mode.
       uint32 buffer_capacity);
 
   // Factory method for creating a low latency audio stream.
   static scoped_refptr<AudioOutputController> CreateLowLatency(
       EventHandler* event_handler,
       AudioParameters params,
-      uint32 hardware_buffer_size,    // Size of the hardware buffer.
-
       // External synchronous reader for audio controller.
       SyncReader* sync_reader);
 
   // Methods to control playback of the stream.
 
   // Starts the playback of this audio output stream.
   void Play();
 
   // Pause this audio output stream.
   void Pause();
@@ skipping 18 matching lines @@
   // the regular latency mode and it is illegal to call this method when
   // SyncReader is present.
   void EnqueueData(const uint8* data, uint32 size);
 
   bool LowLatencyMode() const { return sync_reader_ != NULL; }
 
   ///////////////////////////////////////////////////////////////////////////
   // AudioSourceCallback methods.
   virtual uint32 OnMoreData(AudioOutputStream* stream, uint8* dest,
                             uint32 max_size, AudioBuffersState buffers_state);
-  virtual void OnClose(AudioOutputStream* stream);
   virtual void OnError(AudioOutputStream* stream, int code);
 
  private:
   AudioOutputController(EventHandler* handler,
                         uint32 capacity, SyncReader* sync_reader);
 
   // The following methods are executed on the audio controller thread.
-  void DoCreate(AudioParameters params, uint32 hardware_buffer_size);
+  void DoCreate(AudioParameters params);
   void DoPlay();
   void DoPause();
   void DoFlush();
   void DoClose(Task* closed_task);
   void DoSetVolume(double volume);
   void DoReportError(int code);
 
   // Helper method to submit a OnMoreData() call to the event handler.
   void SubmitOnMoreData_Locked();
 
@@ skipping 23 matching lines @@
 
   // The message loop of audio thread that this object runs on.
   MessageLoop* message_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioOutputController);
 };
 
 }  // namespace media
 
 #endif  //  MEDIA_AUDIO_AUDIO_OUTPUT_CONTROLLER_H_