// Parse returns filled Tag object for the given music file.
func Parse(filename string) (tag Tag, err error) {
cFilename := C.CString(filename)
defer C.free(unsafe.Pointer(cFilename))
// Open file.
cId3File, err := C.id3_file_open(cFilename, C.ID3_FILE_MODE_READONLY)
if err != nil {
return Tag{}, err
}
// TODO: Can't find out why we have segfault sometimes on this close.
// But it seems that without this close file descriptors do not
// leak. So, we can live without it.
// defer C.id3_file_close(cId3File)
// Read tag.
cTag, err := C.id3_file_tag(cId3File)
if err != nil {
return Tag{}, err
}
tag = Tag{frames: make(map[string]string)}
// Parse all frames.
for i := C.uint(0); i < cTag.nframes; i++ {
cFrame := C.id3_hlp_get_tag_frame(cTag, i)
cId := C.id3_hlp_get_frame_id(cFrame)
// XXX: As I understood cId memory will be GCed with id
// (they share same memory).
id := C.GoString(cId)
cVal := C.id3_hlp_get_frame_string(cFrame)
val := C.GoString(cVal)
tag.frames[id] = val
}
return tag, nil
}
// Parse returns filled Tag object for the given music file.
func Parse(filename string) (tag *Tag, err os.Error) {
cFilename := C.CString(filename)
defer C.free(unsafe.Pointer(cFilename))
// Open file.
cId3File, err := C.id3_file_open(cFilename, C.ID3_FILE_MODE_READONLY)
if err != nil {
return nil, err
}
defer C.id3_file_close(cId3File)
tag = new(Tag)
tag.frames = make(map[string]string)
// Read tag.
tag.cTag, err = C.id3_file_tag(cId3File)
if err != nil {
return nil, err
}
// Tag struct will be released with file's one.
// Parse all frames.
for i := _Ctype_uint(0); i < tag.cTag.nframes; i++ {
cFrame := C.id3_hlp_get_tag_frame(tag.cTag, i)
cId := C.id3_hlp_get_frame_id(cFrame)
// XXX: As I understood cId memory will be GCed with id
// (they share same memory).
id := C.GoString(cId)
cVal := C.id3_hlp_get_frame_string(cFrame)
val := C.GoString(cVal)
tag.frames[id] = val
}
return tag, nil
}
