static int decode_ref_pic_list_reordering(H264Context *h){ MpegEncContext * const s = &h->s; int list, index, pic_structure; print_short_term(h); print_long_term(h); if(h->slice_type==FF_I_TYPE || h->slice_type==FF_SI_TYPE) return 0; //FIXME move before func for(list=0; list<h->list_count; list++){ memcpy(h->ref_list[list], h->default_ref_list[list], sizeof(Picture)*h->ref_count[list]); if(get_bits1(&s->gb)){ int pred= h->curr_pic_num; for(index=0; ; index++){ unsigned int reordering_of_pic_nums_idc= get_ue_golomb(&s->gb); unsigned int pic_id; int i; Picture *ref = NULL; if(reordering_of_pic_nums_idc==3) break; if(index >= h->ref_count[list]){ av_log(h->s.avctx, AV_LOG_ERROR, "reference count overflow\n"); return -1; } if(reordering_of_pic_nums_idc<3){ if(reordering_of_pic_nums_idc<2){ const unsigned int abs_diff_pic_num= get_ue_golomb(&s->gb) + 1; int frame_num; if(abs_diff_pic_num > h->max_pic_num){ av_log(h->s.avctx, AV_LOG_ERROR, "abs_diff_pic_num overflow\n"); return -1; } if(reordering_of_pic_nums_idc == 0) pred-= abs_diff_pic_num; else pred+= abs_diff_pic_num; pred &= h->max_pic_num - 1; frame_num = pic_num_extract(h, pred, &pic_structure); for(i= h->short_ref_count-1; i>=0; i--){ ref = h->short_ref[i]; assert(ref->reference); assert(!ref->long_ref); if(ref->data[0] != NULL && ref->frame_num == frame_num && (ref->reference & pic_structure) && ref->long_ref == 0) // ignore non existing pictures by testing data[0] pointer break; } if(i>=0) ref->pic_id= pred; }else{ int long_idx; pic_id= get_ue_golomb(&s->gb); //long_term_pic_idx long_idx= pic_num_extract(h, pic_id, &pic_structure); if(long_idx>31){ av_log(h->s.avctx, AV_LOG_ERROR, "long_term_pic_idx overflow\n"); return -1; } ref = h->long_ref[long_idx]; assert(!(ref && !ref->reference)); if(ref && (ref->reference & pic_structure)){ ref->pic_id= pic_id; assert(ref->long_ref); i=0; }else{ i=-1; } } if (i < 0) { av_log(h->s.avctx, AV_LOG_ERROR, "reference picture missing during reorder\n"); memset(&h->ref_list[list][index], 0, sizeof(Picture)); //FIXME } else { for(i=index; i+1<h->ref_count[list]; i++){ if(ref->long_ref == h->ref_list[list][i].long_ref && ref->pic_id == h->ref_list[list][i].pic_id) break; } for(; i > index; i--){ h->ref_list[list][i]= h->ref_list[list][i-1]; } h->ref_list[list][index]= *ref; if (FIELD_PICTURE){ pic_as_field(&h->ref_list[list][index], pic_structure); } } }else{ av_log(h->s.avctx, AV_LOG_ERROR, "illegal reordering_of_pic_nums_idc\n"); return -1; } } } } for(list=0; list<h->list_count; list++){ for(index= 0; index < h->ref_count[list]; index++){ if(!h->ref_list[list][index].data[0]) h->ref_list[list][index]= s->current_picture; } } if(h->slice_type==FF_B_TYPE && !h->direct_spatial_mv_pred) direct_dist_scale_factor(h); direct_ref_list_init(h); return 0; }
static int decode_ref_pic_list_reordering(H264Context *h){ MpegEncContext * const s = &h->s; int list, index, pic_structure; print_short_term(h); print_long_term(h); if(h->slice_type==FF_I_TYPE || h->slice_type==FF_SI_TYPE) return 0;  