webrtc/modules/video_coding/svc/scalability_structure_l2t2.cc
Danil Chapovalov da7fe39b84 Move scalability structures from av1 into own subfolder
To make it natural to reuse them for vp9

Bug: webrtc:11999
Change-Id: If2ef7ca16b8be96e0e03bb19211d9f5eb74b2d3d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/188620
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32414}
2020-10-15 15:21:46 +00:00

36 lines
1.4 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.
*/
#include "modules/video_coding/svc/scalability_structure_l2t2.h"
#include <vector>
#include "api/transport/rtp/dependency_descriptor.h"
namespace webrtc {
ScalabilityStructureL2T2::~ScalabilityStructureL2T2() = default;
FrameDependencyStructure ScalabilityStructureL2T2::DependencyStructure() const {
FrameDependencyStructure structure;
structure.num_decode_targets = 4;
structure.num_chains = 2;
structure.decode_target_protected_by_chain = {0, 0, 1, 1};
structure.templates.resize(6);
auto& templates = structure.templates;
templates[0].S(0).T(0).Dtis("SSSS").ChainDiffs({0, 0});
templates[1].S(0).T(0).Dtis("SSRR").ChainDiffs({4, 3}).FrameDiffs({4});
templates[2].S(0).T(1).Dtis("-D-R").ChainDiffs({2, 1}).FrameDiffs({2});
templates[3].S(1).T(0).Dtis("--SS").ChainDiffs({1, 1}).FrameDiffs({1});
templates[4].S(1).T(0).Dtis("--SS").ChainDiffs({1, 1}).FrameDiffs({4, 1});
templates[5].S(1).T(1).Dtis("---D").ChainDiffs({3, 2}).FrameDiffs({2, 1});
return structure;
}
} // namespace webrtc