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another try at fixing rv20 ... 

Originally committed as revision 3749 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-12-13 11:41:59 +00:00
parent f48c0551ca
commit 74679f5c1c
1 changed files with 6 additions and 13 deletions
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19
libavcodec/rv10.c
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@ -429,28 +429,21 @@ static int rv20_decode_picture_header(MpegEncContext *s)
}
if(s->avctx->has_b_frames){
int f1=9;
int f2=9;
int f3=9;
int f=9;
int v= s->avctx->extradata_size >= 4 ? ((uint8_t*)s->avctx->extradata)[1] : 0;
if (get_bits(&s->gb, 1)){
av_log(s->avctx, AV_LOG_ERROR, "unknown bit3 set\n");
// return -1;
}
seq= get_bits(&s->gb, 14)<<1;
if(s->avctx->extradata_size >= 4 && ((uint8_t*)s->avctx->extradata)[1]&1){
f1= get_bits(&s->gb, 1);
}
if(s->avctx->extradata_size >= 4 && ((uint8_t*)s->avctx->extradata)[1]&2){
f2= get_bits(&s->gb, 1);
}
if(s->avctx->extradata_size >= 4 && ((uint8_t*)s->avctx->extradata)[1]&4){
f3= get_bits(&s->gb, 2);
if(v>1){
f= get_bits(&s->gb, av_log2(v-1)+1);
}
if(s->avctx->debug & FF_DEBUG_PICT_INFO){
av_log(s->avctx, AV_LOG_DEBUG, "F %d %d %d\n", f1,f2,f3);
av_log(s->avctx, AV_LOG_DEBUG, "F %d\n", f);
}
mb_pos= get_bits(&s->gb, av_log2(s->mb_num-1)+1);