create_scalability_structure.h (1306B)
1 /* 2 * Copyright (c) 2020 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 #ifndef MODULES_VIDEO_CODING_SVC_CREATE_SCALABILITY_STRUCTURE_H_ 11 #define MODULES_VIDEO_CODING_SVC_CREATE_SCALABILITY_STRUCTURE_H_ 12 13 #include <memory> 14 #include <optional> 15 16 #include "api/video_codecs/scalability_mode.h" 17 #include "modules/video_coding/svc/scalable_video_controller.h" 18 #include "rtc_base/system/rtc_export.h" 19 20 namespace webrtc { 21 22 // Creates a structure by name according to 23 // https://w3c.github.io/webrtc-svc/#scalabilitymodes* 24 // Returns nullptr for unknown name. 25 std::unique_ptr<ScalableVideoController> RTC_EXPORT 26 CreateScalabilityStructure(ScalabilityMode name); 27 28 // Returns description of the scalability structure identified by 'name', 29 // Return nullopt for unknown name. 30 std::optional<ScalableVideoController::StreamLayersConfig> 31 ScalabilityStructureConfig(ScalabilityMode name); 32 33 } // namespace webrtc 34 35 #endif // MODULES_VIDEO_CODING_SVC_CREATE_SCALABILITY_STRUCTURE_H_