1/* 2 * Copyright (c) 2011 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_CODING_CODECS_PCM16B_PCM16B_H_ 12#define WEBRTC_MODULES_AUDIO_CODING_CODECS_PCM16B_PCM16B_H_ 13/* 14 * Define the fixpoint numeric formats 15 */ 16 17#include <stddef.h> 18 19#include "webrtc/typedefs.h" 20 21#ifdef __cplusplus 22extern "C" { 23#endif 24 25/**************************************************************************** 26 * WebRtcPcm16b_Encode(...) 27 * 28 * "Encode" a sample vector to 16 bit linear (Encoded standard is big endian) 29 * 30 * Input: 31 * - speech : Input speech vector 32 * - len : Number of samples in speech vector 33 * 34 * Output: 35 * - encoded : Encoded data vector (big endian 16 bit) 36 * 37 * Returned value : Length (in bytes) of coded data. 38 * Always equal to twice the len input parameter. 39 */ 40 41size_t WebRtcPcm16b_Encode(const int16_t* speech, 42 size_t len, 43 uint8_t* encoded); 44 45/**************************************************************************** 46 * WebRtcPcm16b_Decode(...) 47 * 48 * "Decode" a vector to 16 bit linear (Encoded standard is big endian) 49 * 50 * Input: 51 * - encoded : Encoded data vector (big endian 16 bit) 52 * - len : Number of bytes in encoded 53 * 54 * Output: 55 * - speech : Decoded speech vector 56 * 57 * Returned value : Samples in speech 58 */ 59 60size_t WebRtcPcm16b_Decode(const uint8_t* encoded, 61 size_t len, 62 int16_t* speech); 63 64#ifdef __cplusplus 65} 66#endif 67 68#endif /* WEBRTC_MODULES_AUDIO_CODING_CODECS_PCM16B_PCM16B_H_ */ 69