1b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/* 2b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Copyright (c) 2011 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 * crc.h 13b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 14b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Checksum functions 15b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 16b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org */ 17b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 18b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_CRC_H_ 19b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_CRC_H_ 20b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 21a11402cdbf99a12d58421d5b446982e8d30c40caandresp@webrtc.org#include "webrtc/typedefs.h" 22b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 23b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/**************************************************************************** 24b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * WebRtcIsac_GetCrc(...) 25b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 26b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * This function returns a 32 bit CRC checksum of a bit stream 27b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 28b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Input: 29b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * - encoded : payload bit stream 30b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * - no_of_word8s : number of 8-bit words in the bit stream 31b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 32b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Output: 33b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * - crc : checksum 34b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 35b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Return value : 0 - Ok 36b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * -1 - Error 37b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org */ 38b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 39fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.orgint16_t WebRtcIsac_GetCrc( 40fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org const int16_t* encoded, 41fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org int16_t no_of_word8s, 42fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org uint32_t* crc); 43b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 44b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 45b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 46b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#endif /* WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_CRC_H_ */ 47