103 lines
3.1 KiB
C++
103 lines
3.1 KiB
C++
|
/*
|
||
|
|
* Copyright 2011 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.h"
|
||
|
|
|
||
|
|
#include <string>
|
||
|
|
#include <vector>
|
||
|
|
|
||
|
|
#include "api/notifier.h"
|
||
|
|
#include "rtc_base/checks.h"
|
||
|
|
#include "rtc_base/location.h"
|
||
|
|
#include "rtc_base/ref_counted_object.h"
|
||
|
|
|
||
|
|
namespace webrtc {
|
||
|
|
|
||
|
|
VideoTrack::VideoTrack(const std::string& label,
|
||
|
|
VideoTrackSourceInterface* video_source,
|
||
|
|
rtc::Thread* worker_thread)
|
||
|
|
: MediaStreamTrack<VideoTrackInterface>(label),
|
||
|
|
worker_thread_(worker_thread),
|
||
|
|
video_source_(video_source),
|
||
|
|
content_hint_(ContentHint::kNone) {
|
||
|
|
video_source_->RegisterObserver(this);
|
||
|
|
}
|
||
|
|
|
||
|
|
VideoTrack::~VideoTrack() {
|
||
|
|
video_source_->UnregisterObserver(this);
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string VideoTrack::kind() const {
|
||
|
|
return kVideoKind;
|
||
|
|
}
|
||
|
|
|
||
|
|
// AddOrUpdateSink and RemoveSink should be called on the worker
|
||
|
|
// thread.
|
||
|
|
void VideoTrack::AddOrUpdateSink(rtc::VideoSinkInterface<VideoFrame>* sink,
|
||
|
|
const rtc::VideoSinkWants& wants) {
|
||
|
|
RTC_DCHECK(worker_thread_->IsCurrent());
|
||
|
|
VideoSourceBase::AddOrUpdateSink(sink, wants);
|
||
|
|
rtc::VideoSinkWants modified_wants = wants;
|
||
|
|
modified_wants.black_frames = !enabled();
|
||
|
|
video_source_->AddOrUpdateSink(sink, modified_wants);
|
||
|
|
}
|
||
|
|
|
||
|
|
void VideoTrack::RemoveSink(rtc::VideoSinkInterface<VideoFrame>* sink) {
|
||
|
|
RTC_DCHECK(worker_thread_->IsCurrent());
|
||
|
|
VideoSourceBase::RemoveSink(sink);
|
||
|
|
video_source_->RemoveSink(sink);
|
||
|
|
}
|
||
|
|
|
||
|
|
VideoTrackInterface::ContentHint VideoTrack::content_hint() const {
|
||
|
|
RTC_DCHECK_RUN_ON(&signaling_thread_checker_);
|
||
|
|
return content_hint_;
|
||
|
|
}
|
||
|
|
|
||
|
|
void VideoTrack::set_content_hint(ContentHint hint) {
|
||
|
|
RTC_DCHECK_RUN_ON(&signaling_thread_checker_);
|
||
|
|
if (content_hint_ == hint)
|
||
|
|
return;
|
||
|
|
content_hint_ = hint;
|
||
|
|
Notifier<VideoTrackInterface>::FireOnChanged();
|
||
|
|
}
|
||
|
|
|
||
|
|
bool VideoTrack::set_enabled(bool enable) {
|
||
|
|
RTC_DCHECK(signaling_thread_checker_.IsCurrent());
|
||
|
|
worker_thread_->Invoke<void>(RTC_FROM_HERE, [enable, this] {
|
||
|
|
RTC_DCHECK(worker_thread_->IsCurrent());
|
||
|
|
for (auto& sink_pair : sink_pairs()) {
|
||
|
|
rtc::VideoSinkWants modified_wants = sink_pair.wants;
|
||
|
|
modified_wants.black_frames = !enable;
|
||
|
|
video_source_->AddOrUpdateSink(sink_pair.sink, modified_wants);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
return MediaStreamTrack<VideoTrackInterface>::set_enabled(enable);
|
||
|
|
}
|
||
|
|
|
||
|
|
void VideoTrack::OnChanged() {
|
||
|
|
RTC_DCHECK(signaling_thread_checker_.IsCurrent());
|
||
|
|
if (video_source_->state() == MediaSourceInterface::kEnded) {
|
||
|
|
set_state(kEnded);
|
||
|
|
} else {
|
||
|
|
set_state(kLive);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
rtc::scoped_refptr<VideoTrack> VideoTrack::Create(
|
||
|
|
const std::string& id,
|
||
|
|
VideoTrackSourceInterface* source,
|
||
|
|
rtc::Thread* worker_thread) {
|
||
|
|
rtc::RefCountedObject<VideoTrack>* track =
|
||
|
|
new rtc::RefCountedObject<VideoTrack>(id, source, worker_thread);
|
||
|
|
return track;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace webrtc
|