// Destroy frees the underlying resources used by the player.
// It should be called as soon as the player is not in-use anymore.
func (p *Player) Destroy() {
if p == nil {
return
}
if p.source != 0 {
al.DeleteSources(p.source)
}
p.muPrep.Lock()
if len(p.bufs) > 0 {
al.DeleteBuffers(p.bufs)
}
p.muPrep.Unlock()
}
func (p *Player) prepare(offset int64, force bool) error {
p.muPrep.Lock()
defer p.muPrep.Unlock()
if !force && p.prep {
return nil
}
if len(p.bufs) > 0 {
p.source.UnqueueBuffers(p.bufs)
al.DeleteBuffers(p.bufs)
}
if _, err := p.t.src.Seek(offset, 0); err != nil {
return err
}
p.bufs = []al.Buffer{}
// TODO(jbd): Limit the number of buffers in use, unqueue and reuse
// the existing buffers as buffers are processed.
buf := make([]byte, 128*1024)
size := offset
for {
n, err := p.t.src.Read(buf)
if n > 0 {
size += int64(n)
b := al.GenBuffers(1)
b[0].BufferData(uint32(formatToCode[p.t.format]), buf[:n], int32(p.t.rate))
p.bufs = append(p.bufs, b[0])
}
if err == io.EOF {
break
}
if err != nil {
return err
}
}
p.size = size
if len(p.bufs) > 0 {
p.source.QueueBuffers(p.bufs)
}
p.prep = true
return nil
}