1 /* 2 * Copyright (c) 2022 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 11 #include "api/video_codecs/simulcast_stream.h" 12 13 #include "rtc_base/checks.h" 14 15 namespace webrtc { 16 GetNumberOfTemporalLayers() const17unsigned char SimulcastStream::GetNumberOfTemporalLayers() const { 18 return numberOfTemporalLayers; 19 } SetNumberOfTemporalLayers(unsigned char n)20void SimulcastStream::SetNumberOfTemporalLayers(unsigned char n) { 21 RTC_DCHECK_GE(n, 1); 22 RTC_DCHECK_LE(n, 3); 23 numberOfTemporalLayers = n; 24 } 25 GetScalabilityMode() const26ScalabilityMode SimulcastStream::GetScalabilityMode() const { 27 RTC_CHECK_GE(numberOfTemporalLayers, 1); 28 RTC_CHECK_LE(numberOfTemporalLayers, 3); 29 static const ScalabilityMode scalability_modes[3] = { 30 ScalabilityMode::kL1T1, 31 ScalabilityMode::kL1T2, 32 ScalabilityMode::kL1T3, 33 }; 34 return scalability_modes[numberOfTemporalLayers - 1]; 35 } 36 37 } // namespace webrtc 38