|  | /* | 
|  | *  Copyright 2016 The WebRTC project authors. All Rights Reserved. | 
|  | * | 
|  | *  Use of this source code is governed by a BSD-style license | 
|  | *  that can be found in the LICENSE file in the root of the source | 
|  | *  tree. An additional intellectual property rights grant can be found | 
|  | *  in the file PATENTS.  All contributing project authors may | 
|  | *  be found in the AUTHORS file in the root of the source tree. | 
|  | */ | 
|  |  | 
|  | #include "pc/video_track_source.h" | 
|  |  | 
|  | #include "api/media_stream_interface.h" | 
|  | #include "api/sequence_checker.h" | 
|  | #include "api/video/video_frame.h" | 
|  | #include "api/video/video_sink_interface.h" | 
|  | #include "api/video/video_source_interface.h" | 
|  | #include "rtc_base/checks.h" | 
|  |  | 
|  | namespace webrtc { | 
|  |  | 
|  | VideoTrackSource::VideoTrackSource(bool remote) | 
|  | : state_(kInitializing), remote_(remote) {} | 
|  |  | 
|  | void VideoTrackSource::SetState(SourceState new_state) { | 
|  | RTC_DCHECK_RUN_ON(&signaling_thread_checker_); | 
|  | if (state_ != new_state) { | 
|  | state_ = new_state; | 
|  | FireOnChanged(); | 
|  | } | 
|  | } | 
|  |  | 
|  | void VideoTrackSource::AddOrUpdateSink(VideoSinkInterface<VideoFrame>* sink, | 
|  | const VideoSinkWants& wants) { | 
|  | RTC_DCHECK(worker_thread_checker_.IsCurrent()); | 
|  | source()->AddOrUpdateSink(sink, wants); | 
|  | } | 
|  |  | 
|  | void VideoTrackSource::RemoveSink(VideoSinkInterface<VideoFrame>* sink) { | 
|  | RTC_DCHECK(worker_thread_checker_.IsCurrent()); | 
|  | source()->RemoveSink(sink); | 
|  | } | 
|  |  | 
|  | }  //  namespace webrtc |