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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 MODULES_VIDEO_CODING_SVC_SIMULCAST_TO_SVC_CONVERTER_H_
#define MODULES_VIDEO_CODING_SVC_SIMULCAST_TO_SVC_CONVERTER_H_
#include <stddef.h>
#include <memory>
#include <vector>
#include "api/video/encoded_image.h"
#include "api/video_codecs/scalability_mode.h"
#include "api/video_codecs/video_codec.h"
#include "modules/video_coding/include/video_codec_interface.h"
#include "modules/video_coding/svc/scalable_video_controller.h"
#include "rtc_base/system/rtc_export.h"
namespace webrtc {
class RTC_EXPORT SimulcastToSvcConverter {
public:
explicit SimulcastToSvcConverter(const VideoCodec&);
SimulcastToSvcConverter(SimulcastToSvcConverter&&) = default;
SimulcastToSvcConverter(const SimulcastToSvcConverter&) = delete;
SimulcastToSvcConverter& operator=(const SimulcastToSvcConverter&) = delete;
SimulcastToSvcConverter& operator=(SimulcastToSvcConverter&&) = default;
~SimulcastToSvcConverter() = default;
static bool IsConfigSupported(const VideoCodec& codec);
VideoCodec GetConfig() const;
void EncodeStarted(bool force_keyframe);
bool ConvertFrame(EncodedImage& encoded_image,
CodecSpecificInfo& codec_specific);
private:
struct LayerState {
LayerState(ScalabilityMode scalability_mode, int num_temporal_layers);
~LayerState() = default;
LayerState(const LayerState&) = delete;
LayerState(LayerState&&) = default;
std::unique_ptr<ScalableVideoController> video_controller;
ScalableVideoController::LayerFrameConfig layer_config;
bool awaiting_frame;
};
VideoCodec config_;
std::vector<LayerState> layers_;
};
} // namespace webrtc
#endif // MODULES_VIDEO_CODING_SVC_SIMULCAST_TO_SVC_CONVERTER_H_
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