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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /third_party/libwebrtc/pc/video_track.cc | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/pc/video_track.cc')
-rw-r--r-- | third_party/libwebrtc/pc/video_track.cc | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/third_party/libwebrtc/pc/video_track.cc b/third_party/libwebrtc/pc/video_track.cc new file mode 100644 index 0000000000..0bf8687af3 --- /dev/null +++ b/third_party/libwebrtc/pc/video_track.cc @@ -0,0 +1,144 @@ +/* + * 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 <utility> +#include <vector> + +#include "api/notifier.h" +#include "api/sequence_checker.h" +#include "rtc_base/checks.h" + +namespace webrtc { + +VideoTrack::VideoTrack( + absl::string_view label, + rtc::scoped_refptr< + VideoTrackSourceProxyWithInternal<VideoTrackSourceInterface>> source, + rtc::Thread* worker_thread) + : MediaStreamTrack<VideoTrackInterface>(label), + worker_thread_(worker_thread), + video_source_(std::move(source)), + content_hint_(ContentHint::kNone) { + RTC_DCHECK_RUN_ON(&signaling_thread_); + // Detach the thread checker for VideoSourceBaseGuarded since we'll make calls + // to VideoSourceBaseGuarded on the worker thread, but we're currently on the + // signaling thread. + source_sequence_.Detach(); + video_source_->RegisterObserver(this); +} + +VideoTrack::~VideoTrack() { + RTC_DCHECK_RUN_ON(&signaling_thread_); + 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_RUN_ON(worker_thread_); + VideoSourceBaseGuarded::AddOrUpdateSink(sink, wants); + rtc::VideoSinkWants modified_wants = wants; + modified_wants.black_frames = !enabled_w_; + video_source_->internal()->AddOrUpdateSink(sink, modified_wants); +} + +void VideoTrack::RemoveSink(rtc::VideoSinkInterface<VideoFrame>* sink) { + RTC_DCHECK_RUN_ON(worker_thread_); + VideoSourceBaseGuarded::RemoveSink(sink); + video_source_->internal()->RemoveSink(sink); +} + +void VideoTrack::RequestRefreshFrame() { + RTC_DCHECK_RUN_ON(worker_thread_); + video_source_->internal()->RequestRefreshFrame(); +} + +VideoTrackSourceInterface* VideoTrack::GetSource() const { + // Callable from any thread. + return video_source_.get(); +} + +VideoTrackSourceInterface* VideoTrack::GetSourceInternal() const { + return video_source_->internal(); +} + +VideoTrackInterface::ContentHint VideoTrack::content_hint() const { + RTC_DCHECK_RUN_ON(&signaling_thread_); + return content_hint_; +} + +void VideoTrack::set_content_hint(ContentHint hint) { + RTC_DCHECK_RUN_ON(&signaling_thread_); + if (content_hint_ == hint) + return; + content_hint_ = hint; + Notifier<VideoTrackInterface>::FireOnChanged(); +} + +bool VideoTrack::set_enabled(bool enable) { + RTC_DCHECK_RUN_ON(&signaling_thread_); + + bool ret = MediaStreamTrack<VideoTrackInterface>::set_enabled(enable); + + worker_thread_->BlockingCall([&]() { + RTC_DCHECK_RUN_ON(worker_thread_); + enabled_w_ = enable; + 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 ret; +} + +bool VideoTrack::enabled() const { + if (worker_thread_->IsCurrent()) { + RTC_DCHECK_RUN_ON(worker_thread_); + return enabled_w_; + } + RTC_DCHECK_RUN_ON(&signaling_thread_); + return MediaStreamTrack<VideoTrackInterface>::enabled(); +} + +MediaStreamTrackInterface::TrackState VideoTrack::state() const { + RTC_DCHECK_RUN_ON(worker_thread_); + return MediaStreamTrack<VideoTrackInterface>::state(); +} + +void VideoTrack::OnChanged() { + RTC_DCHECK_RUN_ON(&signaling_thread_); + rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls; + MediaSourceInterface::SourceState state = video_source_->state(); + set_state(state == MediaSourceInterface::kEnded ? kEnded : kLive); +} + +rtc::scoped_refptr<VideoTrack> VideoTrack::Create( + absl::string_view id, + rtc::scoped_refptr<VideoTrackSourceInterface> source, + rtc::Thread* worker_thread) { + rtc::scoped_refptr< + VideoTrackSourceProxyWithInternal<VideoTrackSourceInterface>> + source_proxy = VideoTrackSourceProxy::Create( + rtc::Thread::Current(), worker_thread, std::move(source)); + + return rtc::make_ref_counted<VideoTrack>(id, std::move(source_proxy), + worker_thread); +} + +} // namespace webrtc |