/* get quantizer */
if(h->cbp && !h->qp_fixed)
- h->qp += get_se_golomb(&h->s.gb);
+ h->qp = (h->qp + get_se_golomb(&h->s.gb)) & 63;
for(block=0;block<4;block++)
if(h->cbp & (1<<block))
decode_residual_block(h,&h->s.gb,inter_2dvlc,0,h->qp,
}
h->cbp = cbp_tab[cbp_code][0];
if(h->cbp && !h->qp_fixed)
- h->qp += get_se_golomb(gb); //qp_delta
+ h->qp = (h->qp + get_se_golomb(gb)) & 63; //qp_delta
/* luma intra prediction interleaved with residual decode/transform/add */
for(block=0;block<4;block++) {
get_bits(&s->gb,16);//bbv_dwlay
if(h->stc == PIC_PB_START_CODE) {
h->pic_type = get_bits(&s->gb,2) + FF_I_TYPE;
+ if(h->pic_type > FF_B_TYPE) {
+ av_log(s->avctx, AV_LOG_ERROR, "illegal picture type\n");
+ return -1;
+ }
/* make sure we have the reference frames we need */
if(!h->DPB[0].data[0] ||
(!h->DPB[1].data[0] && h->pic_type == FF_B_TYPE))