func (r *Reader) sendCluster(elmts *ebml.Element, tbase time.Duration) {
var err error
for err == nil && len(r.seek) == 0 {
var e *ebml.Element
e, err = elmts.Next()
var blk []byte
if err == nil {
switch e.Id {
case 0xa3:
if err == nil {
blk, err = e.ReadData()
}
if err != nil && err != io.EOF {
log.Println(err)
}
case 0xa0:
var bg BlockGroup
err = e.Unmarshal(&bg)
if err == nil {
blk = bg.Block
}
if err != nil && err != io.EOF {
log.Println(err)
}
default:
log.Printf("Unexpected packet %x", e.Id)
}
if err == nil && blk != nil && len(blk) > 4 {
r.sendBlock(blk, tbase)
}
}
}
}
