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Diffstat (limited to 'thirdparties/android/include/libavutil/adler32.h')
-rw-r--r-- | thirdparties/android/include/libavutil/adler32.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/thirdparties/android/include/libavutil/adler32.h b/thirdparties/android/include/libavutil/adler32.h new file mode 100644 index 0000000..0b890bc --- /dev/null +++ b/thirdparties/android/include/libavutil/adler32.h @@ -0,0 +1,42 @@ +/* + * copyright (c) 2006 Mans Rullgard + * + * 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 AVUTIL_ADLER32_H +#define AVUTIL_ADLER32_H + +#include <stdint.h> +#include "attributes.h" + +/** + * Calculate the Adler32 checksum of a buffer. + * + * Passing the return value to a subsequent av_adler32_update() call + * allows the checksum of multiple buffers to be calculated as though + * they were concatenated. + * + * @param adler initial checksum value + * @param buf pointer to input buffer + * @param len size of input buffer + * @return updated checksum + */ +unsigned long av_adler32_update(unsigned long adler, const uint8_t *buf, + unsigned int len) av_pure; + +#endif /* AVUTIL_ADLER32_H */ |