unreference_pic   536 libavcodec/h264_refs.c         if (unreference_pic(h, pic, ref_mask))
unreference_pic   554 libavcodec/h264_refs.c         if (unreference_pic(h, pic, ref_mask)) {
unreference_pic   580 libavcodec/h264_refs.c         unreference_pic(h, h->short_ref[i], 0);