1 /*
2 * Copyright (c) 2012 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 /******************************************************************
12
13 iLBC Speech Coder ANSI-C Source Code
14
15 WebRtcIlbcfix_SwapBytes.c
16
17 ******************************************************************/
18
19 #include "modules/audio_coding/codecs/ilbc/defines.h"
20
21 /*----------------------------------------------------------------*
22 * Swap bytes (to simplify operations on Little Endian machines)
23 *---------------------------------------------------------------*/
24
WebRtcIlbcfix_SwapBytes(const uint16_t * input,size_t wordLength,uint16_t * output)25 void WebRtcIlbcfix_SwapBytes(
26 const uint16_t* input, /* (i) the sequence to swap */
27 size_t wordLength, /* (i) number or uint16_t to swap */
28 uint16_t* output /* (o) the swapped sequence */
29 ) {
30 size_t k;
31 for (k = wordLength; k > 0; k--) {
32 *output++ = (*input >> 8)|(*input << 8);
33 input++;
34 }
35 }
36