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      1 #ifndef FLAC__PRIVATE__MD5_H
      2 #define FLAC__PRIVATE__MD5_H
      3 
      4 /*
      5  * This is the header file for the MD5 message-digest algorithm.
      6  * The algorithm is due to Ron Rivest.  This code was
      7  * written by Colin Plumb in 1993, no copyright is claimed.
      8  * This code is in the public domain; do with it what you wish.
      9  *
     10  * Equivalent code is available from RSA Data Security, Inc.
     11  * This code has been tested against that, and is equivalent,
     12  * except that you don't need to include two pages of legalese
     13  * with every copy.
     14  *
     15  * To compute the message digest of a chunk of bytes, declare an
     16  * MD5Context structure, pass it to MD5Init, call MD5Update as
     17  * needed on buffers full of bytes, and then call MD5Final, which
     18  * will fill a supplied 16-byte array with the digest.
     19  *
     20  * Changed so as no longer to depend on Colin Plumb's `usual.h'
     21  * header definitions; now uses stuff from dpkg's config.h
     22  *  - Ian Jackson <ijackson (at) nyx.cs.du.edu>.
     23  * Still in the public domain.
     24  *
     25  * Josh Coalson: made some changes to integrate with libFLAC.
     26  * Still in the public domain, with no warranty.
     27  */
     28 
     29 #include "FLAC/ordinals.h"
     30 
     31 typedef union {
     32 	FLAC__byte *p8;
     33 	FLAC__int16 *p16;
     34 	FLAC__int32 *p32;
     35 } FLAC__multibyte;
     36 
     37 typedef struct {
     38 	FLAC__uint32 in[16];
     39 	FLAC__uint32 buf[4];
     40 	FLAC__uint32 bytes[2];
     41 	FLAC__multibyte internal_buf;
     42 	size_t capacity;
     43 } FLAC__MD5Context;
     44 
     45 void FLAC__MD5Init(FLAC__MD5Context *context);
     46 void FLAC__MD5Final(FLAC__byte digest[16], FLAC__MD5Context *context);
     47 
     48 FLAC__bool FLAC__MD5Accumulate(FLAC__MD5Context *ctx, const FLAC__int32 * const signal[], unsigned channels, unsigned samples, unsigned bytes_per_sample);
     49 
     50 #endif
     51