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Add support for scalability modes L3T1_KEY, L3T2, L3T2_KEY.

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Bug: webrtc:13960
Change-Id: Ib5c8309271d83a0fcfdecf7a93fdd61483c7d3e2
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/273105
Commit-Queue: Åsa Persson <asapersson@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37927}
This commit is contained in:
Åsa Persson
2022-08-26 12:24:59 +02:00
committed by WebRTC LUCI CQ
parent c18a8fd8d1
commit 46f4de5722
9 changed files with 125 additions and 6 deletions
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49
modules/video_coding/svc/scalability_structure_key_svc.cc
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@ -343,6 +343,55 @@ FrameDependencyStructure ScalabilityStructureL2T3Key::DependencyStructure()
return structure;
}
ScalabilityStructureL3T1Key::~ScalabilityStructureL3T1Key() = default;
FrameDependencyStructure ScalabilityStructureL3T1Key::DependencyStructure()
const {
FrameDependencyStructure structure;
structure.num_decode_targets = 3;
structure.num_chains = 3;
structure.decode_target_protected_by_chain = {0, 1, 2};
auto& t = structure.templates;
t.resize(6);
// Templates are shown in the order frames following them appear in the
// stream, but in `structure.templates` array templates are sorted by
// (`spatial_id`, `temporal_id`) since that is a dependency descriptor
// requirement.
t[1].S(0).Dtis("SSS").ChainDiffs({0, 0, 0});
t[3].S(1).Dtis("-SS").ChainDiffs({1, 1, 1}).FrameDiffs({1});
t[5].S(2).Dtis("--S").ChainDiffs({2, 1, 1}).FrameDiffs({1});
t[0].S(0).Dtis("S--").ChainDiffs({3, 2, 1}).FrameDiffs({3});
t[2].S(1).Dtis("-S-").ChainDiffs({1, 3, 2}).FrameDiffs({3});
t[4].S(2).Dtis("--S").ChainDiffs({2, 1, 3}).FrameDiffs({3});
return structure;
}
ScalabilityStructureL3T2Key::~ScalabilityStructureL3T2Key() = default;
FrameDependencyStructure ScalabilityStructureL3T2Key::DependencyStructure()
const {
FrameDependencyStructure structure;
structure.num_decode_targets = 6;
structure.num_chains = 3;
structure.decode_target_protected_by_chain = {0, 0, 1, 1, 2, 2};
auto& t = structure.templates;
t.resize(9);
// Templates are shown in the order frames following them appear in the
// stream, but in `structure.templates` array templates are sorted by
// (`spatial_id`, `temporal_id`) since that is a dependency descriptor
// requirement.
t[1].S(0).T(0).Dtis("SSSSSS").ChainDiffs({0, 0, 0});
t[4].S(1).T(0).Dtis("--SSSS").ChainDiffs({1, 1, 1}).FrameDiffs({1});
t[7].S(2).T(0).Dtis("----SS").ChainDiffs({2, 1, 1}).FrameDiffs({1});
t[2].S(0).T(1).Dtis("-D----").ChainDiffs({3, 2, 1}).FrameDiffs({3});
t[5].S(1).T(1).Dtis("---D--").ChainDiffs({4, 3, 2}).FrameDiffs({3});
t[8].S(2).T(1).Dtis("-----D").ChainDiffs({5, 4, 3}).FrameDiffs({3});
t[0].S(0).T(0).Dtis("SS----").ChainDiffs({6, 5, 4}).FrameDiffs({6});
t[3].S(1).T(0).Dtis("--SS--").ChainDiffs({1, 6, 5}).FrameDiffs({6});
t[6].S(2).T(0).Dtis("----SS").ChainDiffs({2, 1, 6}).FrameDiffs({6});
return structure;
}
ScalabilityStructureL3T3Key::~ScalabilityStructureL3T3Key() = default;
FrameDependencyStructure ScalabilityStructureL3T3Key::DependencyStructure()