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 #include <string.h> 11 #include "g711.h" 12 #include "g711_interface.h" 13 #include "webrtc/typedefs.h" 14 15 size_t WebRtcG711_EncodeA(const int16_t* speechIn, 16 size_t len, 17 uint8_t* encoded) { 18 size_t n; 19 for (n = 0; n < len; n++) 20 encoded[n] = linear_to_alaw(speechIn[n]); 21 return len; 22 } 23 24 size_t WebRtcG711_EncodeU(const int16_t* speechIn, 25 size_t len, 26 uint8_t* encoded) { 27 size_t n; 28 for (n = 0; n < len; n++) 29 encoded[n] = linear_to_ulaw(speechIn[n]); 30 return len; 31 } 32 33 size_t WebRtcG711_DecodeA(const uint8_t* encoded, 34 size_t len, 35 int16_t* decoded, 36 int16_t* speechType) { 37 size_t n; 38 for (n = 0; n < len; n++) 39 decoded[n] = alaw_to_linear(encoded[n]); 40 *speechType = 1; 41 return len; 42 } 43 44 size_t WebRtcG711_DecodeU(const uint8_t* encoded, 45 size_t len, 46 int16_t* decoded, 47 int16_t* speechType) { 48 size_t n; 49 for (n = 0; n < len; n++) 50 decoded[n] = ulaw_to_linear(encoded[n]); 51 *speechType = 1; 52 return len; 53 } 54 55 int16_t WebRtcG711_Version(char* version, int16_t lenBytes) { 56 strncpy(version, "2.0.0", lenBytes); 57 return 0; 58 } 59
