blob: 4b4a23ed242a30e1825549129c551f7577be7826 [file] [log] [blame]
/*
* 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/create_scalability_structure.h"
#include <memory>
#include "absl/strings/string_view.h"
#include "modules/video_coding/svc/scalability_structure_key_svc.h"
#include "modules/video_coding/svc/scalability_structure_l1t2.h"
#include "modules/video_coding/svc/scalability_structure_l1t3.h"
#include "modules/video_coding/svc/scalability_structure_l2t1.h"
#include "modules/video_coding/svc/scalability_structure_l2t1h.h"
#include "modules/video_coding/svc/scalability_structure_l2t2.h"
#include "modules/video_coding/svc/scalability_structure_l2t2_key_shift.h"
#include "modules/video_coding/svc/scalability_structure_l3t1.h"
#include "modules/video_coding/svc/scalability_structure_l3t3.h"
#include "modules/video_coding/svc/scalability_structure_s2t1.h"
#include "modules/video_coding/svc/scalable_video_controller.h"
#include "modules/video_coding/svc/scalable_video_controller_no_layering.h"
#include "rtc_base/checks.h"
namespace webrtc {
namespace {
struct NamedStructureFactory {
absl::string_view name;
// Use function pointer to make NamedStructureFactory trivally destructable.
std::unique_ptr<ScalableVideoController> (*factory)();
};
// Wrap std::make_unique function to have correct return type.
template <typename T>
std::unique_ptr<ScalableVideoController> Create() {
return std::make_unique<T>();
}
constexpr NamedStructureFactory kFactories[] = {
{"NONE", Create<ScalableVideoControllerNoLayering>},
{"L1T2", Create<ScalabilityStructureL1T2>},
{"L1T3", Create<ScalabilityStructureL1T3>},
{"L2T1", Create<ScalabilityStructureL2T1>},
{"L2T1h", Create<ScalabilityStructureL2T1h>},
{"L2T1_KEY", Create<ScalabilityStructureL2T1Key>},
{"L2T2", Create<ScalabilityStructureL2T2>},
{"L2T2_KEY", Create<ScalabilityStructureL2T2Key>},
{"L2T2_KEY_SHIFT", Create<ScalabilityStructureL2T2KeyShift>},
{"L3T1", Create<ScalabilityStructureL3T1>},
{"L3T3", Create<ScalabilityStructureL3T3>},
{"L3T3_KEY", Create<ScalabilityStructureL3T3Key>},
{"S2T1", Create<ScalabilityStructureS2T1>},
};
} // namespace
std::unique_ptr<ScalableVideoController> CreateScalabilityStructure(
absl::string_view name) {
RTC_DCHECK(!name.empty());
for (const auto& entry : kFactories) {
if (entry.name == name) {
return entry.factory();
}
}
return nullptr;
}
} // namespace webrtc