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/*
* Copyright (c) 2019 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_rtp_track_source.h"
#include <stddef.h>
#include <algorithm>
#include "api/sequence_checker.h"
#include "api/video/recordable_encoded_frame.h"
#include "api/video/video_frame.h"
#include "api/video/video_sink_interface.h"
#include "api/video/video_source_interface.h"
#include "pc/video_track_source.h"
#include "rtc_base/checks.h"
#include "rtc_base/synchronization/mutex.h"
namespace webrtc {
VideoRtpTrackSource::VideoRtpTrackSource(Callback* callback)
: VideoTrackSource(true /* remote */), callback_(callback) {}
void VideoRtpTrackSource::ClearCallback() {
RTC_DCHECK_RUN_ON(&worker_sequence_checker_);
callback_ = nullptr;
}
VideoSourceInterface<VideoFrame>* VideoRtpTrackSource::source() {
return &broadcaster_;
}
VideoSinkInterface<VideoFrame>* VideoRtpTrackSource::sink() {
return &broadcaster_;
}
void VideoRtpTrackSource::BroadcastRecordableEncodedFrame(
const RecordableEncodedFrame& frame) const {
MutexLock lock(&mu_);
for (VideoSinkInterface<RecordableEncodedFrame>* sink : encoded_sinks_) {
sink->OnFrame(frame);
}
}
bool VideoRtpTrackSource::SupportsEncodedOutput() const {
return true;
}
void VideoRtpTrackSource::GenerateKeyFrame() {
RTC_DCHECK_RUN_ON(&worker_sequence_checker_);
if (callback_) {
callback_->OnGenerateKeyFrame();
}
}
void VideoRtpTrackSource::AddEncodedSink(
VideoSinkInterface<RecordableEncodedFrame>* sink) {
RTC_DCHECK_RUN_ON(&worker_sequence_checker_);
RTC_DCHECK(sink);
size_t size = 0;
{
MutexLock lock(&mu_);
RTC_DCHECK(std::find(encoded_sinks_.begin(), encoded_sinks_.end(), sink) ==
encoded_sinks_.end());
encoded_sinks_.push_back(sink);
size = encoded_sinks_.size();
}
if (size == 1 && callback_) {
callback_->OnEncodedSinkEnabled(true);
}
}
void VideoRtpTrackSource::RemoveEncodedSink(
VideoSinkInterface<RecordableEncodedFrame>* sink) {
RTC_DCHECK_RUN_ON(&worker_sequence_checker_);
size_t size = 0;
{
MutexLock lock(&mu_);
auto it = std::find(encoded_sinks_.begin(), encoded_sinks_.end(), sink);
if (it != encoded_sinks_.end()) {
encoded_sinks_.erase(it);
}
size = encoded_sinks_.size();
}
if (size == 0 && callback_) {
callback_->OnEncodedSinkEnabled(false);
}
}
} // namespace webrtc
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