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71002a226a
Bug: None Change-Id: Iba019a999cb1812eee12bfe54c2f9ec9ebfa248f Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/189965 Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Reviewed-by: Philip Eliasson <philipel@webrtc.org> Cr-Commit-Position: refs/heads/master@{#32487}
64 lines
2 KiB
C++
64 lines
2 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_L2T2_KEY_SHIFT_H_
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#define MODULES_VIDEO_CODING_SVC_SCALABILITY_STRUCTURE_L2T2_KEY_SHIFT_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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// S1T1 0 0
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// / / /
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// S1T0 0---0---0
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// | ...
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// S0T1 | 0 0
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// | / /
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// S0T0 0-0---0--
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// Time-> 0 1 2 3 4
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class ScalabilityStructureL2T2KeyShift : public ScalableVideoController {
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public:
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~ScalabilityStructureL2T2KeyShift() 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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enum FramePattern {
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kKey,
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kDelta0,
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kDelta1,
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};
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static constexpr int kNumSpatialLayers = 2;
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static constexpr int kNumTemporalLayers = 2;
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bool DecodeTargetIsActive(int sid, int tid) const {
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return active_decode_targets_[sid * kNumTemporalLayers + tid];
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}
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void SetDecodeTargetIsActive(int sid, int tid, bool value) {
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active_decode_targets_.set(sid * kNumTemporalLayers + tid, value);
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}
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FramePattern next_pattern_ = kKey;
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std::bitset<32> active_decode_targets_ = 0b1111;
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};
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} // namespace webrtc
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#endif // MODULES_VIDEO_CODING_SVC_SCALABILITY_STRUCTURE_L2T2_KEY_SHIFT_H_
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