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45 lines
1.6 KiB
C++
45 lines
1.6 KiB
C++
/*
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* Copyright (c) 2020 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_VIDEO_CODING_SVC_SCALABILITY_STRUCTURE_S2T1_H_
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#define MODULES_VIDEO_CODING_SVC_SCALABILITY_STRUCTURE_S2T1_H_
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#include <vector>
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#include "api/transport/rtp/dependency_descriptor.h"
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#include "api/video/video_bitrate_allocation.h"
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#include "common_video/generic_frame_descriptor/generic_frame_info.h"
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#include "modules/video_coding/svc/scalable_video_controller.h"
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namespace webrtc {
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// S1 0--0--0-
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// ...
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// S0 0--0--0-
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class ScalabilityStructureS2T1 : public ScalableVideoController {
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public:
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~ScalabilityStructureS2T1() override;
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StreamLayersConfig StreamConfig() const override;
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FrameDependencyStructure DependencyStructure() const override;
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std::vector<LayerFrameConfig> NextFrameConfig(bool restart) override;
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GenericFrameInfo OnEncodeDone(const LayerFrameConfig& config) override;
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void OnRatesUpdated(const VideoBitrateAllocation& bitrates) override;
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private:
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static constexpr int kNumSpatialLayers = 2;
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std::bitset<kNumSpatialLayers> can_reference_frame_for_spatial_id_;
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std::bitset<32> active_decode_targets_ = 0b11;
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};
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} // namespace webrtc
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#endif // MODULES_VIDEO_CODING_SVC_SCALABILITY_STRUCTURE_S2T1_H_
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