content/public/renderer/media_stream_audio_sink.cc

   1 // Copyright 2013 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 #include "content/public/renderer/media_stream_audio_sink.h"
   6
   7 #include "base/logging.h"
   8 #include "content/renderer/media/media_stream_track.h"
   9 #include "content/renderer/media/webrtc_local_audio_track.h"
  10 #include "third_party/WebKit/public/platform/WebMediaStreamSource.h"
  11 #include "third_party/WebKit/public/platform/WebMediaStreamTrack.h"
  12
  13 namespace content {
  14
  15 void MediaStreamAudioSink::AddToAudioTrack(
  16     MediaStreamAudioSink* sink,
  17     const blink::WebMediaStreamTrack& track) {
  18   DCHECK(track.source().type() == blink::WebMediaStreamSource::TypeAudio);
  19   MediaStreamTrack* native_track = MediaStreamTrack::GetTrack(track);
  20   // TODO(xians): Support remote audio track.
  21   DCHECK(native_track->is_local_track());
  22   WebRtcLocalAudioTrack* audio_track =
  23       static_cast<WebRtcLocalAudioTrack*>(native_track);
  24   audio_track->AddSink(sink);
  25 }
  26
  27 void MediaStreamAudioSink::RemoveFromAudioTrack(
  28     MediaStreamAudioSink* sink,
  29     const blink::WebMediaStreamTrack& track) {
  30   MediaStreamTrack* native_track = MediaStreamTrack::GetTrack(track);
  31   // TODO(xians): Support remote audio track.
  32   DCHECK(native_track->is_local_track());
  33   WebRtcLocalAudioTrack* audio_track =
  34       static_cast<WebRtcLocalAudioTrack*>(native_track);
  35   audio_track->RemoveSink(sink);
  36 }
  37
  38 }  // namespace content