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smaller av_sha1_update() 

Originally committed as revision 8381 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-03-13 11:25:57 +00:00
parent 104c30ee06
commit 36c7fa7ea5
1 changed files with 10 additions and 0 deletions
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10
libavutil/sha1.c
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@ -90,6 +90,15 @@ void av_sha1_update(AVSHA1* context, uint8_t* data, unsigned int len){
j = context->count & 63;
context->count += len;
#ifdef CONFIG_SMALL
for( i = 0; i < len; i++ ){
context->buffer[ j++ ] = data[i];
if( 64 == j ){
transform(context->state, context->buffer);
j = 0;
}
}
#else
if ((j + len) > 63) {
memcpy(&context->buffer[j], data, (i = 64-j));
transform(context->state, context->buffer);
@ -100,6 +109,7 @@ void av_sha1_update(AVSHA1* context, uint8_t* data, unsigned int len){
}
else i = 0;
memcpy(&context->buffer[j], &data[i], len - i);
#endif
}
void av_sha1_final(AVSHA1* context, uint8_t digest[20]){