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tag: xmp: Adds GST_TAG_IMAGE_ORIENTATION mapping

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Adds GST_TAG_IMAGE_ORIENTATION mapping to xmp helper lib.
Tests included.
This commit is contained in:
Thiago Santos 2010-06-16 14:08:05 -03:00
parent e327be5a96
commit c774cdcff0
2 changed files with 63 additions and 0 deletions
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46
gst-libs/gst/tag/gstxmptag.c
View file

@ -657,6 +657,50 @@ deserialize_xmp_rating (GstTagList * taglist, const gchar * gst_tag,
gst_tag_list_add (taglist, GST_TAG_MERGE_REPLACE, gst_tag, value, NULL);
}
static gchar *
serialize_tiff_orientation (const GValue * value)
{
const gchar *str;
gint num;
str = g_value_get_string (value);
if (str == NULL) {
GST_WARNING ("Failed to get image orientation tag value");
return NULL;
}
num = gst_tag_image_orientation_to_exif_value (str);
if (num == -1)
return NULL;
return g_strdup_printf ("%d", num);
}
static void
deserialize_tiff_orientation (GstTagList * taglist, const gchar * gst_tag,
const gchar * xmp_tag, const gchar * str, GSList ** pending_tags)
{
guint value;
const gchar *orientation = NULL;
if (sscanf (str, "%u", &value) != 1) {
GST_WARNING ("Failed to parse tiff:Orientation %s", str);
return;
}
if (value < 1 || value > 8) {
GST_WARNING ("Invalid tiff:Orientation tag %u (should be from 1 to 8), "
"ignoring", value);
return;
}
orientation = gst_tag_image_orientation_from_exif_value (value);
if (orientation == NULL)
return;
gst_tag_list_add (taglist, GST_TAG_MERGE_REPLACE, gst_tag, orientation, NULL);
}
/* look at this page for addtional schemas
* http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/XMP.html
*/
@ -693,6 +737,8 @@ _init_xmp_tag_map ()
_xmp_tag_add_simple_mapping (GST_TAG_DEVICE_MANUFACTURER, "tiff:Make", NULL,
NULL);
_xmp_tag_add_simple_mapping (GST_TAG_DEVICE_MODEL, "tiff:Model", NULL, NULL);
_xmp_tag_add_simple_mapping (GST_TAG_IMAGE_ORIENTATION, "tiff:Orientation",
serialize_tiff_orientation, deserialize_tiff_orientation);
/* exif schema */
_xmp_tag_add_simple_mapping (GST_TAG_GEO_LOCATION_LATITUDE,

17
tests/check/libs/tag.c
View file

@ -953,6 +953,23 @@ GST_START_TEST (test_xmp_tags_serialization_deserialization)
&value);
do_xmp_tag_serialization_deserialization (GST_TAG_DEVICE_MODEL, &value);
g_value_set_static_string (&value, "rotate-0");
do_xmp_tag_serialization_deserialization (GST_TAG_IMAGE_ORIENTATION, &value);
g_value_set_static_string (&value, "flip-rotate-0");
do_xmp_tag_serialization_deserialization (GST_TAG_IMAGE_ORIENTATION, &value);
g_value_set_static_string (&value, "rotate-180");
do_xmp_tag_serialization_deserialization (GST_TAG_IMAGE_ORIENTATION, &value);
g_value_set_static_string (&value, "flip-rotate-180");
do_xmp_tag_serialization_deserialization (GST_TAG_IMAGE_ORIENTATION, &value);
g_value_set_static_string (&value, "flip-rotate-270");
do_xmp_tag_serialization_deserialization (GST_TAG_IMAGE_ORIENTATION, &value);
g_value_set_static_string (&value, "rotate-90");
do_xmp_tag_serialization_deserialization (GST_TAG_IMAGE_ORIENTATION, &value);
g_value_set_static_string (&value, "flip-rotate-90");
do_xmp_tag_serialization_deserialization (GST_TAG_IMAGE_ORIENTATION, &value);
g_value_set_static_string (&value, "rotate-270");
do_xmp_tag_serialization_deserialization (GST_TAG_IMAGE_ORIENTATION, &value);
g_value_unset (&value);
g_value_init (&value, G_TYPE_DOUBLE);