Example #1
0
func tagFormatString(tag *tiff.Tag) string {
	switch tag.Format() {
	case tiff.IntVal:
		return "int"
	case tiff.RatVal:
		return "rat"
	case tiff.FloatVal:
		return "float"
	case tiff.StringVal:
		return "string"
	}
	return ""
}
Example #2
0
func tagDegrees(tag *tiff.Tag) (float64, error) {
	switch tag.Format() {
	case tiff.RatVal:
		// The usual case, according to the Exif spec
		// (http://www.kodak.com/global/plugins/acrobat/en/service/digCam/exifStandard2.pdf,
		// sec 4.6.6, p. 52 et seq.)
		v, err := parse3Rat2(tag)
		if err != nil {
			return 0.0, err
		}
		return v[0] + v[1]/60 + v[2]/3600.0, nil
	case tiff.StringVal:
		// Encountered this weird case with a panorama picture taken with a HTC phone
		s, err := tag.StringVal()
		if err != nil {
			return 0.0, err
		}
		return parseTagDegreesString(s)
	default:
		// don't know how to parse value, give up
		return 0.0, fmt.Errorf("Malformed EXIF Tag Degrees")
	}
}