content/renderer/media/webrtc/webrtc_audio_sink_adapter.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_AUDIO_SINK_ADAPTER_H_
   6 #define CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_AUDIO_SINK_ADAPTER_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "content/public/renderer/media_stream_audio_sink.h"
  10 #include "media/audio/audio_parameters.h"
  11
  12 namespace webrtc {
  13 class AudioTrackSinkInterface;
  14 }  // namespace webrtc
  15
  16 namespace content {
  17
  18 // Adapter to the webrtc::AudioTrackSinkInterface of the audio track.
  19 // This class is used in between the MediaStreamAudioSink and
  20 // webrtc::AudioTrackSinkInterface. It gets data callback via the
  21 // MediaStreamAudioSink::OnData() interface and pass the data to
  22 // webrtc::AudioTrackSinkInterface.
  23 class WebRtcAudioSinkAdapter : public MediaStreamAudioSink {
  24  public:
  25   explicit WebRtcAudioSinkAdapter(
  26       webrtc::AudioTrackSinkInterface* sink);
  27   ~WebRtcAudioSinkAdapter() override;
  28
  29   bool IsEqual(const webrtc::AudioTrackSinkInterface* other) const;
  30
  31  private:
  32   // MediaStreamAudioSink implementation.
  33   void OnData(const media::AudioBus& audio_bus,
  34               base::TimeTicks estimated_capture_time) override;
  35   void OnSetFormat(const media::AudioParameters& params) override;
  36
  37   webrtc::AudioTrackSinkInterface* const sink_;
  38
  39   media::AudioParameters params_;
  40   scoped_ptr<int16[]> interleaved_data_;
  41
  42   DISALLOW_COPY_AND_ASSIGN(WebRtcAudioSinkAdapter);
  43 };
  44
  45 }  // namespace content
  46
  47 #endif  // CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_AUDIO_SINK_ADAPTER_H_