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/*
* Copyright (c) 2024 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 API_VIDEO_CODECS_SIMPLE_ENCODER_WRAPPER_H_
#define API_VIDEO_CODECS_SIMPLE_ENCODER_WRAPPER_H_
#include <cstdint>
#include <functional>
#include <memory>
#include <optional>
#include <string>
#include <vector>
#include "absl/strings/string_view.h"
#include "api/scoped_refptr.h"
#include "api/transport/rtp/dependency_descriptor.h"
#include "api/units/timestamp.h"
#include "api/video/video_frame_buffer.h"
#include "api/video_codecs/video_encoder_factory_interface.h"
#include "api/video_codecs/video_encoder_interface.h"
#include "common_video/generic_frame_descriptor/generic_frame_info.h"
#include "modules/video_coding/svc/scalable_video_controller.h"
namespace webrtc {
class SimpleEncoderWrapper {
public:
struct EncodeResult {
bool oh_no = false;
std::vector<uint8_t> bitstream_data;
FrameType frame_type;
GenericFrameInfo generic_frame_info;
std::optional<FrameDependencyStructure> dependency_structure;
};
using EncodeResultCallback = std::function<void(const EncodeResult& result)>;
static std::vector<std::string> SupportedWebrtcSvcModes(
const VideoEncoderFactoryInterface::Capabilities::PredictionConstraints&
prediction_constraints);
static std::unique_ptr<SimpleEncoderWrapper> Create(
std::unique_ptr<VideoEncoderInterface> encoder,
absl::string_view scalability_mode);
// Should be private, use the Create function instead.
SimpleEncoderWrapper(std::unique_ptr<VideoEncoderInterface> encoder,
std::unique_ptr<ScalableVideoController> svc_controller);
// We should really only support CBR, but then we have to think about layer
// allocations... eh... For this PoC just use CQP.
void SetEncodeQp(int qp);
void SetEncodeFps(int fps);
void Encode(scoped_refptr<webrtc::VideoFrameBuffer> frame_buffer,
bool force_keyframe,
EncodeResultCallback callback);
private:
std::unique_ptr<VideoEncoderInterface> encoder_;
std::unique_ptr<ScalableVideoController> svc_controller_;
ScalableVideoController::StreamLayersConfig layer_configs_;
int target_qp_ = 0;
int fps_ = 0;
Timestamp presentation_timestamp_ = Timestamp::Zero();
};
} // namespace webrtc
#endif // API_VIDEO_CODECS_SIMPLE_ENCODER_WRAPPER_H_
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