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/*
* Copyright (c) 2012 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 "video/video_stream_decoder2.h"
#include "api/video_codecs/video_decoder.h"
#include "modules/video_coding/video_receiver2.h"
#include "rtc_base/checks.h"
#include "video/receive_statistics_proxy2.h"
namespace webrtc {
namespace internal {
VideoStreamDecoder::VideoStreamDecoder(
VideoReceiver2* video_receiver,
ReceiveStatisticsProxy* receive_statistics_proxy,
rtc::VideoSinkInterface<VideoFrame>* incoming_video_stream)
: video_receiver_(video_receiver),
receive_stats_callback_(receive_statistics_proxy),
incoming_video_stream_(incoming_video_stream) {
RTC_DCHECK(video_receiver_);
video_receiver_->RegisterReceiveCallback(this);
}
VideoStreamDecoder::~VideoStreamDecoder() {
// Note: There's an assumption at this point that the decoder thread is
// *not* running. If it was, then there could be a race for each of these
// callbacks.
// Unset all the callback pointers that we set in the ctor.
video_receiver_->RegisterReceiveCallback(nullptr);
}
// Do not acquire the lock of `video_receiver_` in this function. Decode
// callback won't necessarily be called from the decoding thread. The decoding
// thread may have held the lock when calling VideoDecoder::Decode, Reset, or
// Release. Acquiring the same lock in the path of decode callback can deadlock.
int32_t VideoStreamDecoder::FrameToRender(VideoFrame& video_frame,
absl::optional<uint8_t> qp,
TimeDelta decode_time,
VideoContentType content_type) {
receive_stats_callback_->OnDecodedFrame(video_frame, qp, decode_time,
content_type);
incoming_video_stream_->OnFrame(video_frame);
return 0;
}
void VideoStreamDecoder::OnDroppedFrames(uint32_t frames_dropped) {
receive_stats_callback_->OnDroppedFrames(frames_dropped);
}
void VideoStreamDecoder::OnIncomingPayloadType(int payload_type) {
receive_stats_callback_->OnIncomingPayloadType(payload_type);
}
void VideoStreamDecoder::OnDecoderInfoChanged(
const VideoDecoder::DecoderInfo& decoder_info) {
receive_stats_callback_->OnDecoderInfo(decoder_info);
}
} // namespace internal
} // namespace webrtc
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