1 /* 2 * Copyright (c) 2014 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 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_COMMON_H_ 12 #define WEBRTC_MODULES_AUDIO_PROCESSING_COMMON_H_ 13 14 #include <assert.h> 15 16 #include "webrtc/modules/audio_processing/include/audio_processing.h" 17 18 namespace webrtc { 19 20 static inline size_t ChannelsFromLayout(AudioProcessing::ChannelLayout layout) { 21 switch (layout) { 22 case AudioProcessing::kMono: 23 case AudioProcessing::kMonoAndKeyboard: 24 return 1; 25 case AudioProcessing::kStereo: 26 case AudioProcessing::kStereoAndKeyboard: 27 return 2; 28 } 29 assert(false); 30 return 0; 31 } 32 33 } // namespace webrtc 34 35 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_COMMON_H_ 36
