media_stream_audio_sink.cc revision a1401311d1ab56c4ed0a474bd38c108f75cb0cd9 
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
13namespace content {
14
15void 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
27void 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
39