1b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/* 2b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 3b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 4b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Use of this source code is governed by a BSD-style license 5b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * that can be found in the LICENSE file in the root of the source 6b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * tree. An additional intellectual property rights grant can be found 7b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * in the file PATENTS. All contributing project authors may 8b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * be found in the AUTHORS file in the root of the source tree. 9b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org */ 10b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 11b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/****************************************************************** 12b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 13b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org iLBC Speech Coder ANSI-C Source Code 14b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 15b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org WebRtcIlbcfix_SwapBytes.c 16b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 17b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org******************************************************************/ 18b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 19b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#include "defines.h" 20b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 21b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/*----------------------------------------------------------------* 22b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Swap bytes (to simplify operations on Little Endian machines) 23b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org *---------------------------------------------------------------*/ 24b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 25b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.orgvoid WebRtcIlbcfix_SwapBytes( 26fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org const uint16_t* input, /* (i) the sequence to swap */ 27fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org int16_t wordLength, /* (i) number or uint16_t to swap */ 28fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org uint16_t* output /* (o) the swapped sequence */ 29b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org ) { 30b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int k; 31b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org for (k = wordLength; k > 0; k--) { 32b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org *output++ = (*input >> 8)|(*input << 8); 33b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org input++; 34b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 35b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 36