func (v *Vorbis) Info() (info codec.SongInfo, err error) {
if v.info != nil {
return *v.info, nil
}
si, _, b, err := v.Reader.Metadata(tag.OGG)
if err != nil {
return
}
or := ogg.NewReader(bytes.NewReader(b))
vr, err := vorbis.OpenOgg(or)
if err != nil {
return
}
l, err := or.Length()
if err != nil {
return
}
si.Time = time.Duration(l/uint64(vr.SampleRate())) * time.Second
v.info = si
return *si, nil
}
// Open reads the vorbis headers from an io.Reader and performs the setup needed to decode the data.
func Open(in io.Reader) (*Vorbis, error) {
return OpenOgg(ogg.NewReader(in))
}