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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.
*/
#ifndef VIDEO_FRAME_ENCODE_METADATA_WRITER_H_
#define VIDEO_FRAME_ENCODE_METADATA_WRITER_H_
#include <list>
#include <memory>
#include <vector>
#include "absl/types/optional.h"
#include "api/video/encoded_image.h"
#include "api/video_codecs/video_codec.h"
#include "api/video_codecs/video_encoder.h"
#include "modules/video_coding/include/video_codec_interface.h"
#include "rtc_base/synchronization/mutex.h"
namespace webrtc {
class FrameEncodeMetadataWriter {
public:
explicit FrameEncodeMetadataWriter(EncodedImageCallback* frame_drop_callback);
~FrameEncodeMetadataWriter();
void OnEncoderInit(const VideoCodec& codec, bool internal_source);
void OnSetRates(const VideoBitrateAllocation& bitrate_allocation,
uint32_t framerate_fps);
void OnEncodeStarted(const VideoFrame& frame);
void FillTimingInfo(size_t simulcast_svc_idx, EncodedImage* encoded_image);
std::unique_ptr<RTPFragmentationHeader> UpdateBitstream(
const CodecSpecificInfo* codec_specific_info,
const RTPFragmentationHeader* fragmentation,
EncodedImage* encoded_image);
void Reset();
private:
size_t NumSpatialLayers() const RTC_EXCLUSIVE_LOCKS_REQUIRED(lock_);
// For non-internal-source encoders, returns encode started time and fixes
// capture timestamp for the frame, if corrupted by the encoder.
absl::optional<int64_t> ExtractEncodeStartTimeAndFillMetadata(
size_t simulcast_svc_idx,
EncodedImage* encoded_image) RTC_EXCLUSIVE_LOCKS_REQUIRED(lock_);
struct FrameMetadata {
uint32_t rtp_timestamp;
int64_t encode_start_time_ms;
int64_t ntp_time_ms = 0;
int64_t timestamp_us = 0;
VideoRotation rotation = kVideoRotation_0;
absl::optional<ColorSpace> color_space;
RtpPacketInfos packet_infos;
};
struct TimingFramesLayerInfo {
TimingFramesLayerInfo();
~TimingFramesLayerInfo();
size_t target_bitrate_bytes_per_sec = 0;
std::list<FrameMetadata> frames;
};
Mutex lock_;
EncodedImageCallback* const frame_drop_callback_;
VideoCodec codec_settings_ RTC_GUARDED_BY(&lock_);
bool internal_source_ RTC_GUARDED_BY(&lock_);
uint32_t framerate_fps_ RTC_GUARDED_BY(&lock_);
// Separate instance for each simulcast stream or spatial layer.
std::vector<TimingFramesLayerInfo> timing_frames_info_ RTC_GUARDED_BY(&lock_);
int64_t last_timing_frame_time_ms_ RTC_GUARDED_BY(&lock_);
size_t reordered_frames_logged_messages_ RTC_GUARDED_BY(&lock_);
size_t stalled_encoder_logged_messages_ RTC_GUARDED_BY(&lock_);
};
} // namespace webrtc
#endif // VIDEO_FRAME_ENCODE_METADATA_WRITER_H_
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