mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-11-16 09:21:43 +00:00
57 lines
2.6 KiB
C
57 lines
2.6 KiB
C
/* libFLAC - Free Lossless Audio Codec library
|
|
* Copyright (C) 2000,2001,2002,2003,2004,2005 Josh Coalson
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* - Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* - Neither the name of the Xiph.org Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef FLAC__PRIVATE__CRC_H
|
|
#define FLAC__PRIVATE__CRC_H
|
|
|
|
#include "FLAC/ordinals.h"
|
|
|
|
/* 8 bit CRC generator, MSB shifted first
|
|
** polynomial = x^8 + x^2 + x^1 + x^0
|
|
** init = 0
|
|
*/
|
|
extern FLAC__byte const FLAC__crc8_table[256];
|
|
#define FLAC__CRC8_UPDATE(data, crc) (crc) = FLAC__crc8_table[(crc) ^ (data)];
|
|
void FLAC__crc8_update(const FLAC__byte data, FLAC__uint8 *crc);
|
|
void FLAC__crc8_update_block(const FLAC__byte *data, unsigned len, FLAC__uint8 *crc);
|
|
FLAC__uint8 FLAC__crc8(const FLAC__byte *data, unsigned len);
|
|
|
|
/* 16 bit CRC generator, MSB shifted first
|
|
** polynomial = x^16 + x^15 + x^2 + x^0
|
|
** init = 0
|
|
*/
|
|
extern FLAC__uint16 FLAC__crc16_table[256];
|
|
#define FLAC__CRC16_UPDATE(data, crc) (crc) = ((crc)<<8) ^ FLAC__crc16_table[((crc)>>8) ^ (data)];
|
|
void FLAC__crc16_update(const FLAC__byte data, FLAC__uint16 *crc);
|
|
void FLAC__crc16_update_block(const FLAC__byte *data, unsigned len, FLAC__uint16 *crc);
|
|
FLAC__uint16 FLAC__crc16(const FLAC__byte *data, unsigned len);
|
|
|
|
#endif
|