webrtc/modules/video_coding/svc/scalability_structure_s2t1.h
Danil Chapovalov 82031310f5 Support layer skipping in S2T1 structure
Bug: webrtc:11999
Change-Id: I22bcf357d29dfdf93239b1b71732a647d9b0557a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/189548
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32442}
2020-10-19 14:30:48 +00:00

45 lines
1.6 KiB
C++

/*
* Copyright (c) 2020 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_SCALABILITY_STRUCTURE_S2T1_H_
#define MODULES_VIDEO_CODING_SVC_SCALABILITY_STRUCTURE_S2T1_H_
#include <vector>
#include "api/transport/rtp/dependency_descriptor.h"
#include "api/video/video_bitrate_allocation.h"
#include "common_video/generic_frame_descriptor/generic_frame_info.h"
#include "modules/video_coding/svc/scalable_video_controller.h"
namespace webrtc {
// S1 0--0--0-
// ...
// S0 0--0--0-
class ScalabilityStructureS2T1 : public ScalableVideoController {
public:
~ScalabilityStructureS2T1() override;
StreamLayersConfig StreamConfig() const override;
FrameDependencyStructure DependencyStructure() const override;
std::vector<LayerFrameConfig> NextFrameConfig(bool restart) override;
GenericFrameInfo OnEncodeDone(const LayerFrameConfig& config) override;
void OnRatesUpdated(const VideoBitrateAllocation& bitrates) override;
private:
static constexpr int kNumSpatialLayers = 2;
std::bitset<kNumSpatialLayers> can_reference_frame_for_spatial_id_;
std::bitset<32> active_decode_targets_ = 0b11;
};
} // namespace webrtc
#endif // MODULES_VIDEO_CODING_SVC_SCALABILITY_STRUCTURE_S2T1_H_