Computes the Adler-32 checksum of a data stream. More...

#include "config.h"
#include "adler32.h"
#include "common.h"
#include "intreadwrite.h"

Macros
#define	BASE 65521L /* largest prime smaller than 65536 */

#define	DO1(buf) { s1 += *buf++; s2 += s1; }

#define	DO4(buf) DO1(buf); DO1(buf); DO1(buf); DO1(buf);

#define	DO16(buf) DO4(buf); DO4(buf); DO4(buf); DO4(buf);

Functions
unsigned long	av_adler32_update (unsigned long adler, const uint8_t *buf, unsigned int len)
	Calculate the Adler32 checksum of a buffer. More...

Detailed Description

Computes the Adler-32 checksum of a data stream.

This is a modified version based on adler32.c from the zlib library.

Macros