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      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 #include "content/renderer/media/media_stream_track.h"
      6 
      7 #include "base/logging.h"
      8 #include "third_party/WebKit/public/platform/WebMediaStreamSource.h"
      9 #include "third_party/libjingle/source/talk/app/webrtc/mediastreaminterface.h"
     10 
     11 namespace content {
     12 
     13 MediaStreamTrack* MediaStreamTrack::GetTrack(
     14     const blink::WebMediaStreamTrack& track) {
     15   if (track.isNull())
     16     return NULL;
     17   return static_cast<MediaStreamTrack*>(track.extraData());
     18 }
     19 
     20 MediaStreamTrack::MediaStreamTrack(
     21     webrtc::MediaStreamTrackInterface* track, bool is_local_track)
     22     : track_(track),
     23       is_local_track_(is_local_track) {
     24 }
     25 
     26 MediaStreamTrack::~MediaStreamTrack() {
     27 }
     28 
     29 void MediaStreamTrack::SetEnabled(bool enabled) {
     30   if (track_)
     31     track_->set_enabled(enabled);
     32 }
     33 
     34 void MediaStreamTrack::Stop() {
     35   // Stop means that a track should be stopped permanently. But
     36   // since there is no proper way of doing that on a remote track, we can
     37   // at least disable the track. Blink will not call down to the content layer
     38   // after a track has been stopped.
     39   if (track_)
     40     track_->set_enabled(false);
     41 }
     42 
     43 webrtc::AudioTrackInterface* MediaStreamTrack::GetAudioAdapter() {
     44   return static_cast<webrtc::AudioTrackInterface*>(track_.get());
     45 }
     46 
     47 }  // namespace content
     48