mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-13 05:40:42 +01:00
b660b7a89c
This uses the field trial introduced is crbug.com/1406331 and extends the usage to OpenH264. This simplifies experimentation whether this change improves performance without requiring multi-slice encoding. BUG=webrtc:14368 Change-Id: I0031e59059f7113dd5453234869c957d46f311bb Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/294340 Reviewed-by: Erik Språng <sprang@webrtc.org> Reviewed-by: Sergey Silkin <ssilkin@webrtc.org> Reviewed-by: Henrik Boström <hbos@webrtc.org> Commit-Queue: Philipp Hancke <phancke@microsoft.com> Cr-Commit-Position: refs/heads/main@{#39371}
126 lines
3.9 KiB
C++
126 lines
3.9 KiB
C++
/*
|
|
* Copyright (c) 2015 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 MODULES_VIDEO_CODING_CODECS_H264_H264_ENCODER_IMPL_H_
|
|
#define MODULES_VIDEO_CODING_CODECS_H264_H264_ENCODER_IMPL_H_
|
|
|
|
// Everything declared in this header is only required when WebRTC is
|
|
// build with H264 support, please do not move anything out of the
|
|
// #ifdef unless needed and tested.
|
|
#ifdef WEBRTC_USE_H264
|
|
|
|
#if defined(WEBRTC_WIN) && !defined(__clang__)
|
|
#error "See: bugs.webrtc.org/9213#c13."
|
|
#endif
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
#include "absl/container/inlined_vector.h"
|
|
#include "api/transport/rtp/dependency_descriptor.h"
|
|
#include "api/video/i420_buffer.h"
|
|
#include "api/video/video_codec_constants.h"
|
|
#include "api/video_codecs/scalability_mode.h"
|
|
#include "api/video_codecs/video_encoder.h"
|
|
#include "common_video/h264/h264_bitstream_parser.h"
|
|
#include "modules/video_coding/codecs/h264/include/h264.h"
|
|
#include "modules/video_coding/svc/scalable_video_controller.h"
|
|
#include "modules/video_coding/utility/quality_scaler.h"
|
|
#include "third_party/openh264/src/codec/api/wels/codec_app_def.h"
|
|
|
|
class ISVCEncoder;
|
|
|
|
namespace webrtc {
|
|
|
|
class H264EncoderImpl : public H264Encoder {
|
|
public:
|
|
struct LayerConfig {
|
|
int simulcast_idx = 0;
|
|
int width = -1;
|
|
int height = -1;
|
|
bool sending = true;
|
|
bool key_frame_request = false;
|
|
float max_frame_rate = 0;
|
|
uint32_t target_bps = 0;
|
|
uint32_t max_bps = 0;
|
|
bool frame_dropping_on = false;
|
|
int key_frame_interval = 0;
|
|
int num_temporal_layers = 1;
|
|
|
|
void SetStreamState(bool send_stream);
|
|
};
|
|
|
|
public:
|
|
explicit H264EncoderImpl(const cricket::VideoCodec& codec);
|
|
~H264EncoderImpl() override;
|
|
|
|
// `settings.max_payload_size` is ignored.
|
|
// The following members of `codec_settings` are used. The rest are ignored.
|
|
// - codecType (must be kVideoCodecH264)
|
|
// - targetBitrate
|
|
// - maxFramerate
|
|
// - width
|
|
// - height
|
|
int32_t InitEncode(const VideoCodec* codec_settings,
|
|
const VideoEncoder::Settings& settings) override;
|
|
int32_t Release() override;
|
|
|
|
int32_t RegisterEncodeCompleteCallback(
|
|
EncodedImageCallback* callback) override;
|
|
void SetRates(const RateControlParameters& parameters) override;
|
|
|
|
// The result of encoding - an EncodedImage and CodecSpecificInfo - are
|
|
// passed to the encode complete callback.
|
|
int32_t Encode(const VideoFrame& frame,
|
|
const std::vector<VideoFrameType>* frame_types) override;
|
|
|
|
EncoderInfo GetEncoderInfo() const override;
|
|
|
|
// Exposed for testing.
|
|
H264PacketizationMode PacketizationModeForTesting() const {
|
|
return packetization_mode_;
|
|
}
|
|
|
|
private:
|
|
SEncParamExt CreateEncoderParams(size_t i) const;
|
|
|
|
webrtc::H264BitstreamParser h264_bitstream_parser_;
|
|
// Reports statistics with histograms.
|
|
void ReportInit();
|
|
void ReportError();
|
|
|
|
std::vector<ISVCEncoder*> encoders_;
|
|
std::vector<SSourcePicture> pictures_;
|
|
std::vector<rtc::scoped_refptr<I420Buffer>> downscaled_buffers_;
|
|
std::vector<LayerConfig> configurations_;
|
|
std::vector<EncodedImage> encoded_images_;
|
|
std::vector<std::unique_ptr<ScalableVideoController>> svc_controllers_;
|
|
absl::InlinedVector<absl::optional<ScalabilityMode>, kMaxSimulcastStreams>
|
|
scalability_modes_;
|
|
|
|
VideoCodec codec_;
|
|
H264PacketizationMode packetization_mode_;
|
|
size_t max_payload_size_;
|
|
int32_t number_of_cores_;
|
|
absl::optional<int> encoder_thread_limit_;
|
|
EncodedImageCallback* encoded_image_callback_;
|
|
|
|
bool has_reported_init_;
|
|
bool has_reported_error_;
|
|
|
|
std::vector<uint8_t> tl0sync_limit_;
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // WEBRTC_USE_H264
|
|
|
|
#endif // MODULES_VIDEO_CODING_CODECS_H264_H264_ENCODER_IMPL_H_
|