ret = avio_open_dyn_buf(&dyn_bc);
if (ret >= 0 && nut->sp_count) {
- av_assert1(nut->write_index);
+ av_assert1(nut->write_index); // sp_count should be 0 if no index is going to be written
write_index(nut, dyn_bc);
put_packet(nut, bc, dyn_bc, 1, INDEX_STARTCODE);
}