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get rid of b_used variable (same size with CONFIG_SMALL)

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Originally committed as revision 8382 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-03-13 11:57:26 +00:00
parent 36c7fa7ea5
commit e1b62250ac
1 changed files with 10 additions and 10 deletions
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20
libavutil/md5.c
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@ -38,7 +38,6 @@ typedef struct AVMD5{
uint8_t block[64];
uint32_t ABCD[4];
uint64_t len;
int b_used;
} AVMD5;
const int av_md5_size= sizeof(AVMD5);
@ -117,7 +116,6 @@ CORE4(0) CORE4(16) CORE4(32) CORE4(48)
void av_md5_init(AVMD5 *ctx){
ctx->len = 0;
ctx->b_used = 0;
ctx->ABCD[0] = 0x10325476;
ctx->ABCD[1] = 0x98badcfe;
@ -126,27 +124,29 @@ void av_md5_init(AVMD5 *ctx){
}
void av_md5_update(AVMD5 *ctx, const uint8_t *src, const int len){
int i;
int i, j;
j= ctx->len & 63;
ctx->len += len;
for( i = 0; i < len; i++ ){
ctx->block[ ctx->b_used++ ] = src[i];
if( 64 == ctx->b_used ){
ctx->block[j++] = src[i];
if( 64 == j ){
body(ctx->ABCD, (uint32_t*) ctx->block);
ctx->b_used = 0;
j = 0;
}
}
}
void av_md5_final(AVMD5 *ctx, uint8_t *dst){
int i;
int i, j;
ctx->block[ctx->b_used++] = 0x80;
j= ctx->len & 63;
ctx->block[j++] = 0x80;
memset(&ctx->block[ctx->b_used], 0, 64 - ctx->b_used);
memset(&ctx->block[j], 0, 64 - j);
if( 56 < ctx->b_used ){
if( 56 < j ){
body( ctx->ABCD, (uint32_t*) ctx->block );
memset(ctx->block, 0, 64);
}