1*d9f75844SAndroid Build Coastguard Worker /* 2*d9f75844SAndroid Build Coastguard Worker * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. 3*d9f75844SAndroid Build Coastguard Worker * 4*d9f75844SAndroid Build Coastguard Worker * Use of this source code is governed by a BSD-style license 5*d9f75844SAndroid Build Coastguard Worker * that can be found in the LICENSE file in the root of the source 6*d9f75844SAndroid Build Coastguard Worker * tree. An additional intellectual property rights grant can be found 7*d9f75844SAndroid Build Coastguard Worker * in the file PATENTS. All contributing project authors may 8*d9f75844SAndroid Build Coastguard Worker * be found in the AUTHORS file in the root of the source tree. 9*d9f75844SAndroid Build Coastguard Worker */ 10*d9f75844SAndroid Build Coastguard Worker 11*d9f75844SAndroid Build Coastguard Worker #ifndef AUDIO_CONVERSION_H_ 12*d9f75844SAndroid Build Coastguard Worker #define AUDIO_CONVERSION_H_ 13*d9f75844SAndroid Build Coastguard Worker 14*d9f75844SAndroid Build Coastguard Worker #include <stddef.h> 15*d9f75844SAndroid Build Coastguard Worker #include <stdint.h> 16*d9f75844SAndroid Build Coastguard Worker 17*d9f75844SAndroid Build Coastguard Worker namespace webrtc { 18*d9f75844SAndroid Build Coastguard Worker 19*d9f75844SAndroid Build Coastguard Worker // Convert fixed point number with 8 bit fractional part, to floating point. Q8ToFloat(uint32_t v)20*d9f75844SAndroid Build Coastguard Workerinline float Q8ToFloat(uint32_t v) { 21*d9f75844SAndroid Build Coastguard Worker return static_cast<float>(v) / (1 << 8); 22*d9f75844SAndroid Build Coastguard Worker } 23*d9f75844SAndroid Build Coastguard Worker 24*d9f75844SAndroid Build Coastguard Worker // Convert fixed point number with 14 bit fractional part, to floating point. Q14ToFloat(uint32_t v)25*d9f75844SAndroid Build Coastguard Workerinline float Q14ToFloat(uint32_t v) { 26*d9f75844SAndroid Build Coastguard Worker return static_cast<float>(v) / (1 << 14); 27*d9f75844SAndroid Build Coastguard Worker } 28*d9f75844SAndroid Build Coastguard Worker } // namespace webrtc 29*d9f75844SAndroid Build Coastguard Worker 30*d9f75844SAndroid Build Coastguard Worker #endif // AUDIO_CONVERSION_H_ 31