static void idr(H264Context *h){
int i;
ff_h264_remove_all_refs(h);
- h->prev_frame_num= 0;
+ h->prev_frame_num= -1;
h->prev_frame_num_offset= 0;
h->prev_poc_msb=
h->prev_poc_lsb= 0;
if(h0->current_slice == 0){
// Shorten frame num gaps so we don't have to allocate reference frames just to throw them away
- if(h->frame_num != h->prev_frame_num) {
+ if(h->frame_num != h->prev_frame_num && h->prev_frame_num >= 0) {
int unwrap_prev_frame_num = h->prev_frame_num, max_frame_num = 1<<h->sps.log2_max_frame_num;
if (unwrap_prev_frame_num > h->frame_num) unwrap_prev_frame_num -= max_frame_num;
}
}
- while(h->frame_num != h->prev_frame_num &&
+ while(h->frame_num != h->prev_frame_num && h->prev_frame_num >= 0 &&
h->frame_num != (h->prev_frame_num+1)%(1<<h->sps.log2_max_frame_num)){
Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
av_log(h->s.avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n", h->frame_num, h->prev_frame_num);