Пример #1
1
func (x *Exif) loadSubDir(r *bytes.Reader, tagId uint16) error {
	tag, ok := x.main[tagId]
	if !ok {
		return nil
	}
	offset := tag.Int(0)

	_, err := r.Seek(offset, 0)
	if err != nil {
		return errors.New("exif: seek to sub-IFD failed: " + err.Error())
	}
	subDir, _, err := tiff.DecodeDir(r, x.tif.Order)
	if err != nil {
		return errors.New("exif: sub-IFD decode failed: " + err.Error())
	}
	for _, tag := range subDir.Tags {
		x.main[tag.Id] = tag
	}
	return nil
}
Пример #2
1
func (x *Exif) loadSubDir(r *bytes.Reader, ptrName FieldName, fieldMap map[uint16]FieldName) error {
	tag, ok := x.main[ptrName]
	if !ok {
		return nil
	}
	offset := tag.Int(0)

	_, err := r.Seek(offset, 0)
	if err != nil {
		return errors.New("exif: seek to sub-IFD failed: " + err.Error())
	}
	subDir, _, err := tiff.DecodeDir(r, x.tif.Order)
	if err != nil {
		return errors.New("exif: sub-IFD decode failed: " + err.Error())
	}
	for _, tag := range subDir.Tags {
		name := fieldMap[tag.Id]
		x.main[name] = tag
	}
	return nil
}