Canon EOS 5D Mark II writes Aperture values as invalid values 0x80000000/1

which makes pow() throw floating-point exceptions.

diff --git a/libexif/exif-entry.c b/libexif/exif-entry.c
index 409df51..7d7e06c 100644 (file)
--- a/libexif/exif-entry.c
+++ b/libexif/exif-entry.c
@@ -992,7 +992,7 @@ exif_entry_get_value (ExifEntry *e, char *val, unsigned int maxlen)
                CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
                CC (e, 1, val, maxlen);
                v_rat = exif_get_rational (e->data, o);
-               if (!v_rat.denominator) {
+               if (!v_rat.denominator || (0x80000000 == v_rat.numerator)) {
                        exif_entry_format_value(e, val, maxlen);
                        break;
                }