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tag: exif: Check for utf8 before trying to convert

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If the string is already on utf8, there is no need to
try to convert it, because it is useless and it might garble
the string.
This commit is contained in:
Thiago Santos 2011-08-11 12:12:07 -03:00
parent 436c533624
commit 72b92af807
1 changed files with 16 additions and 8 deletions
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24
gst-libs/gst/tag/gstexiftag.c
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@ -1209,14 +1209,22 @@ parse_exif_ascii_tag (GstExifReader * reader, const GstExifTagMatch * tag,
}
/* convert from ascii to utf8 */
utfstr = g_convert (str, count, "utf8", "latin1", NULL, NULL, &error);
g_free (str);
if (error) {
GST_WARNING ("Skipping tag %d:%s. Failed to convert ascii string "
"to utf8 : %s - %s", tag->exif_tag, tag->gst_tag, str, error->message);
g_error_free (error);
g_free (utfstr);
return;
if (g_utf8_validate (str, -1, NULL)) {
GST_DEBUG ("Exif string is already on utf8: %s", str);
utfstr = str;
} else {
GST_DEBUG ("Exif string isn't utf8, trying to convert from latin1: %s",
str);
utfstr = g_convert (str, count, "utf8", "latin1", NULL, NULL, &error);
g_free (str);
if (error) {
GST_WARNING ("Skipping tag %d:%s. Failed to convert ascii string "
"to utf8 : %s - %s", tag->exif_tag, tag->gst_tag, str,
error->message);
g_error_free (error);
g_free (utfstr);
return;
}
}
tagtype = gst_tag_get_type (tag->gst_tag);