Switch AudioRenderSink::Callback to use AudioBus.

media/audio/audio_util.h

 // Copyright (c) 2012 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_UTIL_H_
 #define MEDIA_AUDIO_AUDIO_UTIL_H_
 
 #include <string>
-#include <vector>
 
 #include "base/basictypes.h"
 #include "media/base/channel_layout.h"
 #include "media/base/media_export.h"
 
 namespace base {
 class SharedMemory;
 }
 
 namespace media {
+class AudioBus;
 
 // For all audio functions 3 audio formats are supported:
 // 8 bits unsigned 0 to 255.
 // 16 bit signed (little endian).
 // 32 bit signed (little endian)
 
 // AdjustVolume() does a software volume adjustment of a sample buffer.
 // The samples are multiplied by the volume, which should range from
 // 0.0 (mute) to 1.0 (full volume).
 // Using software allows each audio and video to have its own volume without
@@ skipping 49 matching lines @@
                                            int channel_index,
                                            int bytes_per_sample,
                                            size_t number_of_frames);
 
 // InterleaveFloatToInt scales, clips, and interleaves the planar
 // floating-point audio contained in |source| to the |destination|.
 // The floating-point data is in a canonical range of -1.0 -> +1.0.
 // The size of the |source| vector determines the number of channels.
 // The |destination| buffer is assumed to be large enough to hold the
 // result. Thus it must be at least size: number_of_frames * source.size()
-MEDIA_EXPORT void InterleaveFloatToInt(const std::vector<float*>& source,
+MEDIA_EXPORT void InterleaveFloatToInt(const AudioBus* audio_bus,
                                        void* destination,
                                        size_t number_of_frames,
                                        int bytes_per_sample);
 
 // Returns the default audio output hardware sample-rate.
 MEDIA_EXPORT int GetAudioHardwareSampleRate();
 
 // Returns the audio input hardware sample-rate for the specified device.
 MEDIA_EXPORT int GetAudioInputHardwareSampleRate(
     const std::string& device_id);
@@ skipping 33 matching lines @@
 MEDIA_EXPORT bool IsWASAPISupported();
 
 // Returns number of buffers to be used by wave out.
 MEDIA_EXPORT int NumberOfWaveOutBuffers();
 
 #endif  // defined(OS_WIN)
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_AUDIO_UTIL_H_