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/*
* 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_CREATE_SCALABILITY_STRUCTURE_H_
#define MODULES_VIDEO_CODING_SVC_CREATE_SCALABILITY_STRUCTURE_H_
#include <memory>
#include <vector>
#include "absl/types/optional.h"
#include "api/video_codecs/scalability_mode.h"
#include "modules/video_coding/svc/scalable_video_controller.h"
namespace webrtc {
// Creates a structure by name according to
// https://w3c.github.io/webrtc-svc/#scalabilitymodes*
// Returns nullptr for unknown name.
std::unique_ptr<ScalableVideoController> CreateScalabilityStructure(
ScalabilityMode name);
// Returns description of the scalability structure identified by 'name',
// Return nullopt for unknown name.
absl::optional<ScalableVideoController::StreamLayersConfig>
ScalabilityStructureConfig(ScalabilityMode name);
} // namespace webrtc
#endif // MODULES_VIDEO_CODING_SVC_CREATE_SCALABILITY_STRUCTURE_H_
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