Miam-Player  0.8.0
A nice music player
crc.h
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1 /*
2  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
27 #ifndef AVUTIL_CRC_H
28 #define AVUTIL_CRC_H
29 
30 #include <stdint.h>
31 #include <stddef.h>
32 #include "attributes.h"
33 #include "version.h"
34 
47 typedef uint32_t AVCRC;
48 
49 typedef enum {
54  AV_CRC_32_IEEE_LE, /*< reversed bitorder version of AV_CRC_32_IEEE */
55  AV_CRC_16_ANSI_LE, /*< reversed bitorder version of AV_CRC_16_ANSI */
56 #if FF_API_CRC_BIG_TABLE
58 #else
60 #endif /* FF_API_CRC_BIG_TABLE */
61  AV_CRC_MAX, /*< Not part of public API! Do not use outside libavutil. */
62 }AVCRCId;
63 
80 int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size);
81 
87 const AVCRC *av_crc_get_table(AVCRCId crc_id);
88 
96 uint32_t av_crc(const AVCRC *ctx, uint32_t crc,
97  const uint8_t *buffer, size_t length) av_pure;
98 
103 #endif /* AVUTIL_CRC_H */
#define av_pure
Definition: attributes.h:72
Definition: crc.h:55
Definition: crc.h:57
Definition: crc.h:54
int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size)
AVCRCId
Definition: crc.h:49
Definition: crc.h:52
Definition: crc.h:53
uint32_t av_crc(const AVCRC *ctx, uint32_t crc, const uint8_t *buffer, size_t length) av_pure
const AVCRC * av_crc_get_table(AVCRCId crc_id)
Definition: crc.h:50
Definition: crc.h:61
Definition: crc.h:51
uint32_t AVCRC
Definition: crc.h:47