func Get(rf codec.Reader, id codec.ID) (codec.Song, error) {
top, child := id.Pop()
r, _, err := rf()
if err != nil {
return nil, err
}
defer r.Close()
var song codec.Song
f := func(d *rardecode.Reader, fh *rardecode.FileHeader) (stop bool) {
if fh.Name != top {
return false
}
var b []byte
// TODO: Wait until needed to read the data. However, this should cache the data
// and then close the reader.
b, err = ioutil.ReadAll(d)
if err != nil {
return true
}
song, err = codec.ByExtensionID(top, child, func() (io.ReadCloser, int64, error) {
return ioutil.NopCloser(bytes.NewReader([]byte(b))), int64(len(b)), nil
})
return true
}
err = read(r, f)
if err == nil && song == nil {
err = fmt.Errorf("rar: %v unfound", top)
}
return song, err
}
func (d *Drive) GetSong(id codec.ID) (codec.Song, error) {
path, child := id.Pop()
f := d.Files[path]
if f == nil {
return nil, fmt.Errorf("missing %v", path)
}
return codec.ByExtensionID(f.FileExtension, child, d.reader(path))
}
func (f *File) GetSong(id codec.ID) (codec.Song, error) {
top, child := id.Pop()
return codec.ByExtensionID(top, child, fileReader(top))
}