chromium/third_party/blink/renderer/modules/mediarecorder/video_track_recorder.h

// Copyright 2015 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_MODULES_MEDIARECORDER_VIDEO_TRACK_RECORDER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIARECORDER_VIDEO_TRACK_RECORDER_H_

#include <atomic>
#include <memory>
#include <optional>
#include <utility>

#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "base/task/sequenced_task_runner.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "media/base/video_encoder.h"
#include "media/base/video_frame_converter.h"
#include "media/base/video_frame_pool.h"
#include "media/capture/video/video_capture_buffer_pool_util.h"
#include "media/media_buildflags.h"
#include "media/muxers/webm_muxer.h"
#include "media/renderers/paint_canvas_video_renderer.h"
#include "media/video/video_encode_accelerator.h"
#include "third_party/blink/public/common/media/video_capture.h"
#include "third_party/blink/public/platform/web_graphics_context_3d_provider.h"
#include "third_party/blink/public/web/modules/mediastream/encoded_video_frame.h"
#include "third_party/blink/public/web/modules/mediastream/media_stream_video_sink.h"
#include "third_party/blink/renderer/modules/mediarecorder/key_frame_request_processor.h"
#include "third_party/blink/renderer/modules/mediarecorder/track_recorder.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/platform/allow_discouraged_type.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/heap/member.h"
#include "third_party/blink/renderer/platform/heap/persistent.h"
#include "third_party/blink/renderer/platform/heap/weak_cell.h"
#include "third_party/blink/renderer/platform/wtf/cross_thread_copier.h"
#include "third_party/blink/renderer/platform/wtf/functional.h"
#include "third_party/blink/renderer/platform/wtf/hash_map.h"
#include "third_party/blink/renderer/platform/wtf/sequence_bound.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
#include "third_party/skia/include/core/SkBitmap.h"

namespace media {
class VideoEncoderMetricsProvider;
class VideoFrame;
}

namespace video_track_recorder {
#if BUILDFLAG(IS_ANDROID)
const int kVEAEncoderMinResolutionWidth = 176;
const int kVEAEncoderMinResolutionHeight = 144;
#else
const int kVEAEncoderMinResolutionWidth = …;
const int kVEAEncoderMinResolutionHeight = …;
#endif
}  // namespace video_track_recorder

namespace blink {

class MediaStreamVideoTrack;

// Base class serving as interface for eventually saving encoded frames stemming
// from media from a source.
class VideoTrackRecorder : public TrackRecorder<MediaStreamVideoSink> { … };

// VideoTrackRecorderImpl uses the inherited WebMediaStreamSink and encodes the
// video frames received from a Stream Video Track. This class is constructed
// and used on a single thread, namely the main Render thread. This mirrors the
// other MediaStreamVideo* classes that are constructed/configured on Main
// Render thread but that pass frames on Render IO thread. It has an internal
// Encoder with its own threading subtleties, see the implementation file.
class MODULES_EXPORT VideoTrackRecorderImpl : public VideoTrackRecorder { … };

// VideoTrackRecorderPassthrough uses the inherited WebMediaStreamSink to
// dispatch EncodedVideoFrame content received from a MediaStreamVideoTrack.
class MODULES_EXPORT VideoTrackRecorderPassthrough : public VideoTrackRecorder { … };
}  // namespace blink
#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIARECORDER_VIDEO_TRACK_RECORDER_H_