if ctable_id == 0 {
let max_pal_size = start_pos + size - br.tell();
let mut pal = [0; 1024];
read_palette(br, max_pal_size, &mut pal)?;
track.pal = Some(Arc::new(pal));
if ctable_id == 0 {
let max_pal_size = start_pos + size - br.tell();
let mut pal = [0; 1024];
read_palette(br, max_pal_size, &mut pal)?;
track.pal = Some(Arc::new(pal));