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/*
* Copyright (c) 2018 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_VP8_LIBVPX_VP8_ENCODER_H_
#define MODULES_VIDEO_CODING_CODECS_VP8_LIBVPX_VP8_ENCODER_H_
#include <memory>
#include <vector>
#include "api/video/encoded_image.h"
#include "api/video/video_frame.h"
#include "api/video_codecs/video_encoder.h"
#include "api/video_codecs/vp8_frame_config.h"
#include "api/video_codecs/vp8_temporal_layers.h"
#include "common_types.h" // NOLINT(build/include)
#include "modules/video_coding/codecs/vp8/include/vp8.h"
#include "modules/video_coding/codecs/vp8/libvpx_interface.h"
#include "modules/video_coding/include/video_codec_interface.h"
#include "rtc_base/experiments/cpu_speed_experiment.h"
#include "rtc_base/experiments/rate_control_settings.h"
#include "vpx/vp8cx.h"
#include "vpx/vpx_encoder.h"
namespace webrtc {
class LibvpxVp8Encoder : public VideoEncoder {
public:
LibvpxVp8Encoder();
explicit LibvpxVp8Encoder(std::unique_ptr<LibvpxInterface> interface);
~LibvpxVp8Encoder() override;
int Release() override;
int InitEncode(const VideoCodec* codec_settings,
int number_of_cores,
size_t max_payload_size) override;
int Encode(const VideoFrame& input_image,
const CodecSpecificInfo* codec_specific_info,
const std::vector<FrameType>* frame_types) override;
int RegisterEncodeCompleteCallback(EncodedImageCallback* callback) override;
int SetRateAllocation(const VideoBitrateAllocation& bitrate,
uint32_t new_framerate) override;
EncoderInfo GetEncoderInfo() const override;
static vpx_enc_frame_flags_t EncodeFlags(const Vp8FrameConfig& references);
private:
void SetupTemporalLayers(const VideoCodec& codec);
// Get the cpu_speed setting for encoder based on resolution and/or platform.
int GetCpuSpeed(int width, int height);
// Determine number of encoder threads to use.
int NumberOfThreads(int width, int height, int number_of_cores);
// Call encoder initialize function and set control settings.
int InitAndSetControlSettings();
void PopulateCodecSpecific(CodecSpecificInfo* codec_specific,
const vpx_codec_cx_pkt& pkt,
int stream_idx,
int encoder_idx,
uint32_t timestamp);
int GetEncodedPartitions(const VideoFrame& input_image);
// Set the stream state for stream |stream_idx|.
void SetStreamState(bool send_stream, int stream_idx);
uint32_t MaxIntraTarget(uint32_t optimal_buffer_size);
uint32_t FrameDropThreshold(size_t spatial_idx) const;
const std::unique_ptr<LibvpxInterface> libvpx_;
const absl::optional<std::vector<CpuSpeedExperiment::Config>>
experimental_cpu_speed_config_arm_;
const RateControlSettings rate_control_settings_;
EncodedImageCallback* encoded_complete_callback_;
VideoCodec codec_;
bool inited_;
int64_t timestamp_;
int qp_max_;
int cpu_speed_default_;
int number_of_cores_;
uint32_t rc_max_intra_target_;
std::vector<std::unique_ptr<Vp8TemporalLayers>> temporal_layers_;
std::vector<bool> key_frame_request_;
std::vector<bool> send_stream_;
std::vector<int> cpu_speed_;
std::vector<vpx_image_t> raw_images_;
std::vector<EncodedImage> encoded_images_;
std::vector<vpx_codec_ctx_t> encoders_;
std::vector<vpx_codec_enc_cfg_t> configurations_;
std::vector<vpx_rational_t> downsampling_factors_;
};
} // namespace webrtc
#endif // MODULES_VIDEO_CODING_CODECS_VP8_LIBVPX_VP8_ENCODER_H_