func (self *Data) Open(file string) error {
cfile := C.CString(file)
self.ed = C.exif_data_new_from_file(cfile)
defer C.free(unsafe.Pointer(self.ed))
C.free(unsafe.Pointer(cfile))
if self.ed == nil {
return fmt.Errorf("No EXIF data in file: %s\n", file)
}
values := C.exif_dump(self.ed)
for true {
value := C.pop_exif_value(values)
if value == nil {
break
} else {
self.Tags[strings.Trim(C.GoString((*value).name), " ")] = strings.Trim(C.GoString((*value).value), " ")
}
C.free_exif_value(value)
}
C.free(unsafe.Pointer(values))
return nil
}
// Open opens a file path and loads its EXIF data.
func (d *Data) Open(file string) error {
cfile := C.CString(file)
defer C.free(unsafe.Pointer(cfile))
exifData := C.exif_data_new_from_file(cfile)
if exifData == nil {
return ErrNoExifData
}
defer C.exif_data_unref(exifData)
return d.parseExifData(exifData)
}
// Opens a file path and tries to read the EXIF data inside.
func (self *Data) Open(file string) error {
cfile := C.CString(file)
exifData := C.exif_data_new_from_file(cfile)
C.free(unsafe.Pointer(cfile))
if exifData == nil {
return fmt.Errorf(ErrNoExifData.Error(), file)
}
defer func() {
C.exif_data_unref(exifData)
}()
return self.parseExifData(exifData)
}