if(index < 0)
return -1;
- avio_seek(s->pb, st->index_entries[index].pos, SEEK_SET);
+ if (avio_seek(s->pb, st->index_entries[index].pos, SEEK_SET) < 0)
+ return -1;
+
nst->frame_offset = st->index_entries[index].timestamp;
nsv->state = NSV_UNSYNC;
return 0;