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crc.h
资源名称:X264CODEC.rar [点击查看]
上传用户:lctgjx
上传日期:2022-06-04
资源大小:8887k
文件大小:1k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
- #ifndef FFMPEG_CRC_H
- #define FFMPEG_CRC_H
- #include <stddef.h>
- #include "common.h"
- typedef uint32_t AVCRC;
- typedef enum {
- AV_CRC_8_ATM,
- AV_CRC_16_ANSI,
- AV_CRC_16_CCITT,
- AV_CRC_32_IEEE,
- AV_CRC_32_IEEE_LE, /*< reversed bitorder version of AV_CRC_32_IEEE */
- AV_CRC_MAX, /*< not part of public API! don't use outside lavu */
- }AVCRCId;
- int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size);
- const AVCRC *av_crc_get_table(AVCRCId crc_id);
- uint32_t av_crc(const AVCRC *ctx, uint32_t start_crc, const uint8_t *buffer, size_t length) av_pure;
- #endif /* FFMPEG_CRC_H */