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.
5 #include "content/public/renderer/media_stream_audio_sink.h"
7 #include "base/logging.h"
8 #include "content/renderer/media/media_stream_track_extra_data.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"
15 void MediaStreamAudioSink::AddToAudioTrack(
16 MediaStreamAudioSink* sink,
17 const blink::WebMediaStreamTrack& track) {
18 DCHECK(track.source().type() == blink::WebMediaStreamSource::TypeAudio);
19 MediaStreamTrackExtraData* extra_data =
20 static_cast<MediaStreamTrackExtraData*>(track.extraData());
21 // TODO(xians): Support remote audio track.
22 DCHECK(extra_data->is_local_track());
23 WebRtcLocalAudioTrack* audio_track =
24 static_cast<WebRtcLocalAudioTrack*>(extra_data->track().get());
25 audio_track->AddSink(sink);
28 void MediaStreamAudioSink::RemoveFromAudioTrack(
29 MediaStreamAudioSink* sink,
30 const blink::WebMediaStreamTrack& track) {
31 MediaStreamTrackExtraData* extra_data =
32 static_cast<MediaStreamTrackExtraData*>(track.extraData());
33 // TODO(xians): Support remote audio track.
34 DCHECK(extra_data->is_local_track());
35 WebRtcLocalAudioTrack* audio_track =
36 static_cast<WebRtcLocalAudioTrack*>(extra_data->track().get());
37 audio_track->RemoveSink(sink);
40 } // namespace content