videolan/ffmpeg
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segfault fix

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Originally committed as revision 3376 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-08-03 01:50:52 +00:00
parent fa2522d700
commit 7440fe839d
1 changed files with 7 additions and 4 deletions
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11
libavcodec/h264.c
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@ -738,6 +738,9 @@ static inline int check_intra_pred_mode(H264Context *h, int mode){
static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
if(mode < 0 || mode > 6)
return -1;
if(!(h->top_samples_available&0x8000)){
mode= top[ mode ];
if(mode<0){
@ -5136,13 +5139,13 @@ static int decode_slice(H264Context *h){
int ret = decode_mb_cabac(h);
int eos = get_cabac_terminate( &h->cabac ); /* End of Slice flag */
hl_decode_mb(h);
if(ret>=0) hl_decode_mb(h);
/* XXX: useless as decode_mb_cabac it doesn't support that ... */
if( ret >= 0 && h->sps.mb_aff ) { //FIXME optimal? or let mb_decode decode 16x32 ?
s->mb_y++;
ret = decode_mb_cabac(h);
if(ret>=0) ret = decode_mb_cabac(h);
eos = get_cabac_terminate( &h->cabac );
hl_decode_mb(h);
@ -5180,13 +5183,13 @@ static int decode_slice(H264Context *h){
for(;;){
int ret = decode_mb_cavlc(h);
hl_decode_mb(h);
if(ret>=0) hl_decode_mb(h);
if(ret>=0 && h->sps.mb_aff){ //FIXME optimal? or let mb_decode decode 16x32 ?
s->mb_y++;
ret = decode_mb_cavlc(h);
hl_decode_mb(h);
if(ret>=0) hl_decode_mb(h);
s->mb_y--;
}