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  if (!native_track->is_local_track()) {
22    LOG(ERROR) << "Can't add the sink to a remote audio track";
23    return;
24  }
25
26  WebRtcLocalAudioTrack* audio_track =
27      static_cast<WebRtcLocalAudioTrack*>(native_track);
28  audio_track->AddSink(sink);
29}
30
31void MediaStreamAudioSink::RemoveFromAudioTrack(
32    MediaStreamAudioSink* sink,
33    const blink::WebMediaStreamTrack& track) {
34  MediaStreamTrack* native_track = MediaStreamTrack::GetTrack(track);
35  // TODO(xians): Support remote audio track.
36  if (!native_track->is_local_track()) {
37    LOG(ERROR) << "Can't remove the sink from a remote audio track";
38    return;
39  }
40
41  WebRtcLocalAudioTrack* audio_track =
42      static_cast<WebRtcLocalAudioTrack*>(native_track);
43  audio_track->RemoveSink(sink);
44}
45
46}  // namespace content
47