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     webrtc::MediaStreamTrackInterface* track, bool is_local_track)
  22     : track_(track),
  23       muted_state_(false),
  24       is_local_track_(is_local_track){
  25 }
  26
  27 MediaStreamTrack::~MediaStreamTrack() {
  28 }
  29
  30 void MediaStreamTrack::SetEnabled(bool enabled) {
  31   DCHECK(thread_checker_.CalledOnValidThread());
  32   if (track_.get())
  33     track_->set_enabled(enabled);
  34 }
  35
  36 void MediaStreamTrack::SetMutedState(bool muted_state) {
  37   DCHECK(thread_checker_.CalledOnValidThread());
  38   muted_state_ = muted_state;
  39 }
  40
  41 bool MediaStreamTrack::GetMutedState(void) const {
  42   DCHECK(thread_checker_.CalledOnValidThread());
  43   return muted_state_;
  44 }
  45
  46 void MediaStreamTrack::Stop() {
  47   DCHECK(thread_checker_.CalledOnValidThread());
  48   // Stop means that a track should be stopped permanently. But
  49   // since there is no proper way of doing that on a remote track, we can
  50   // at least disable the track. Blink will not call down to the content layer
  51   // after a track has been stopped.
  52   if (track_.get())
  53     track_->set_enabled(false);
  54 }
  55
  56 webrtc::AudioTrackInterface* MediaStreamTrack::GetAudioAdapter() {
  57   DCHECK(thread_checker_.CalledOnValidThread());
  58   return static_cast<webrtc::AudioTrackInterface*>(track_.get());
  59 }
  60
  61 }  // namespace content