content/renderer/media/media_stream_track.cc

   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     const scoped_refptr<webrtc::MediaStreamTrackInterface>& track,
  22     bool is_local_track)
  23     : track_(track), is_local_track_(is_local_track) {
  24 }
  25
  26 MediaStreamTrack::~MediaStreamTrack() {
  27 }
  28
  29 void MediaStreamTrack::SetEnabled(bool enabled) {
  30   DCHECK(thread_checker_.CalledOnValidThread());
  31   if (track_.get())
  32     track_->set_enabled(enabled);
  33 }
  34
  35 void MediaStreamTrack::Stop() {
  36   DCHECK(thread_checker_.CalledOnValidThread());
  37   // Stop means that a track should be stopped permanently. But
  38   // since there is no proper way of doing that on a remote track, we can
  39   // at least disable the track. Blink will not call down to the content layer
  40   // after a track has been stopped.
  41   if (track_.get())
  42     track_->set_enabled(false);
  43 }
  44
  45 webrtc::AudioTrackInterface* MediaStreamTrack::GetAudioAdapter() {
  46   DCHECK(thread_checker_.CalledOnValidThread());
  47   return static_cast<webrtc::AudioTrackInterface*>(track_.get());
  48 }
  49
  50 }  // namespace content