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optimzation

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Originally committed as revision 3630 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-10-24 02:59:36 +00:00
parent 58897665ae
commit db4d9faf8d
1 changed files with 9 additions and 9 deletions
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18
libavcodec/h264.c
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@ -4118,8 +4118,7 @@ static int decode_cabac_mb_mvd( H264Context *h, int list, int n, int l ) {
int amvd = abs( h->mvd_cache[list][scan8[n] - 1][l] ) +
abs( h->mvd_cache[list][scan8[n] - 8][l] );
int ctxbase = (l == 0) ? 40 : 47;
int ctx;
int mvd = 0;
int ctx, mvd;
if( amvd < 3 )
ctx = 0;
@ -4128,11 +4127,14 @@ static int decode_cabac_mb_mvd( H264Context *h, int list, int n, int l ) {
else
ctx = 1;
if(!get_cabac(&h->cabac, &h->cabac_state[ctxbase+ctx]))
return 0;
mvd= 1;
ctx= 3;
while( mvd < 9 && get_cabac( &h->cabac, &h->cabac_state[ctxbase+ctx] ) ) {
mvd++;
if( ctx < 3 )
ctx = 3;
else if( ctx < 6 )
if( ctx < 6 )
ctx++;
}
@ -4147,12 +4149,10 @@ static int decode_cabac_mb_mvd( H264Context *h, int list, int n, int l ) {
mvd += 1 << k;
}
}
if( mvd != 0 && get_cabac_bypass( &h->cabac ) )
return -mvd;
return mvd;
if( get_cabac_bypass( &h->cabac ) ) return -mvd;
else return mvd;
}
static int inline get_cabac_cbf_ctx( H264Context *h, int cat, int idx ) {
int nza, nzb;
int ctx = 0;