rtc_video_decoder_stream_adapter.h | Explore in Territory

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_PEERCONNECTION_RTC_VIDEO_DECODER_STREAM_ADAPTER_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_PEERCONNECTION_RTC_VIDEO_DECODER_STREAM_ADAPTER_H_

#include <memory>
#include <vector>

#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/metrics/single_sample_metrics.h"
#include "base/sequence_checker.h"
#include "base/synchronization/lock.h"
#include "base/task/sequenced_task_runner.h"
#include "build/build_config.h"
#include "media/base/decoder_status.h"
#include "media/base/media_switches.h"
#include "media/base/overlay_info.h"
#include "media/base/status.h"
#include "media/base/supported_video_decoder_config.h"
#include "media/base/video_codecs.h"
#include "media/base/video_decoder.h"
#include "media/base/video_decoder_config.h"
#include "media/filters/decoder_stream.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/deque.h"
#include "third_party/blink/renderer/platform/wtf/functional.h"
#include "third_party/webrtc/api/video_codecs/sdp_video_format.h"
#include "third_party/webrtc/modules/video_coding/include/video_codec_interface.h"
#include "ui/gfx/color_space.h"
#include "ui/gfx/geometry/size.h"

namespace media {
class DecoderBuffer;
class DecoderFactory;
class GpuVideoAcceleratorFactories;
class MediaLog;
}  // namespace media

namespace blink {

// This class decodes video for WebRTC using a media::VideoDecoderStream.
//
// VideoDecoderStream is used by almost all non-WebRTC video decoding in
// chromium.  It handles selecting the decoder implementation, including between
// hardware and software implementations.  It also provides fallback / fall-
// forward between implementations if needed for config changes.
//
// Lifecycle methods are called on the WebRTC worker thread. Decoding happens on
// a WebRTC DecodingThread, which is an rtc::PlatformThread owend by WebRTC; it
// does not have a TaskRunner.
//
// To stop decoding, WebRTC stops the DecodingThread and then calls Release() on
// the worker. Calling the DecodedImageCallback after the DecodingThread is
// stopped is illegal but, because we decode on the media thread, there is no
// way to synchronize this correctly.
class PLATFORM_EXPORT RTCVideoDecoderStreamAdapter
    : public webrtc::VideoDecoder { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_PEERCONNECTION_RTC_VIDEO_DECODER_STREAM_ADAPTER_H_
chromium/third_party/blink/renderer/platform/peerconnection/rtc_video_decoder_stream_adapter.h
