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metadata: map more tags and fix reading of xmp tags

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Register xmp schemas for photoshop and iptc. Map a few location tags there.
Add more dc tags. Fix reading xmp tag by iteration over known schemas. Add
some more debug logging.
This commit is contained in:
Stefan Kost 2009-06-22 18:35:21 +03:00
parent b1367a95ca
commit d5b302ffc4
3 changed files with 66 additions and 16 deletions
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12
ext/metadata/metadatatags.c
View file

@ -446,5 +446,17 @@ metadata_tags_iptc_register (void)
static void
metadata_tags_xmp_register (void)
{
gst_tag_register (GST_TAG_XMP_GEO_LOCATION_COUNTRY, GST_TAG_FLAG_META,
G_TYPE_STRING, GST_TAG_XMP_GEO_LOCATION_COUNTRY,
"human readable english country name of where the media has been recorded or produced",
NULL);
gst_tag_register (GST_TAG_XMP_GEO_LOCATION_CITY, GST_TAG_FLAG_META,
G_TYPE_STRING, GST_TAG_XMP_GEO_LOCATION_CITY,
"human readable english city name of where the media has been recorded or produced",
NULL);
gst_tag_register (GST_TAG_XMP_GEO_LOCATION_SUBLOCATION, GST_TAG_FLAG_META,
G_TYPE_STRING, GST_TAG_XMP_GEO_LOCATION_SUBLOCATION,
"human readable location detail of where the media has been recorded or produced",
NULL);
}

4
ext/metadata/metadatatags.h
View file

@ -126,6 +126,10 @@ typedef enum {
#define GST_TAG_GPS_SPEED ""
#define GST_TAG_GPS_TRACK ""
#define GST_TAG_XMP_GEO_LOCATION_COUNTRY "geo-location-country"
#define GST_TAG_XMP_GEO_LOCATION_CITY "geo-location-city"
#define GST_TAG_XMP_GEO_LOCATION_SUBLOCATION "geo-location-sublocation"
/* *INDENT-ON* */
/*

66
ext/metadata/metadataxmp.c
View file

@ -155,13 +155,26 @@ typedef struct _tag_SchemaMap
#define XMP_SCHEMA_NODE 0x80000000UL
/* *INDENT-OFF* */
/* When changing this table, update 'metadata_mapping.htm' file too. */
/* When changing these tables, update 'metadata_mapping.htm' file too. */
static const SchemaTagMap schema_map_dublin_tags_map[] = {
{"creator", GST_TAG_ARTIST },
{"description", GST_TAG_DESCRIPTION },
{"title", GST_TAG_TITLE },
{"rights", GST_TAG_COPYRIGHT },
{"type", GST_TAG_CODEC },
{"format", GST_TAG_VIDEO_CODEC },
{"rights", GST_TAG_COPYRIGHT },
{"subject", GST_TAG_KEYWORDS },
{"title", GST_TAG_TITLE },
{"type", GST_TAG_CODEC },
{NULL, NULL}
};
static const SchemaTagMap schema_map_photoshop_tags_map[] = {
{"country", GST_TAG_XMP_GEO_LOCATION_COUNTRY },
{"city", GST_TAG_XMP_GEO_LOCATION_CITY },
{NULL, NULL}
};
static const SchemaTagMap schema_map_iptc4xmpcore_tags_map[] = {
{"location", GST_TAG_XMP_GEO_LOCATION_SUBLOCATION },
{NULL, NULL}
};
/* *INDENT-ON* */
@ -173,9 +186,26 @@ static const SchemaMap schema_map_dublin = {
schema_map_dublin_tags_map
};
/* When changing this table, update 'metadata_mapping.htm' file too. */
/* http://www.adobe.com/devnet/xmp/pdfs/xmp_specification.pdf */
static const SchemaMap schema_map_photoshop = {
"http://ns.adobe.com/photoshop/1.0/",
"photoshop:",
10,
schema_map_photoshop_tags_map
};
/* http://www.iptc.org/std/Iptc4xmpCore/1.0/specification/Iptc4xmpCore_1.0-spec-XMPSchema_8.pdf */
static const SchemaMap schema_map_iptc4xmpcore = {
"http://iptc.org/std/Iptc4xmpCore/1.0/xmlns/",
"Iptc4xmpCore:",
13,
schema_map_iptc4xmpcore_tags_map
};
static const SchemaMap *schemas_map[] = {
&schema_map_dublin,
&schema_map_photoshop,
&schema_map_iptc4xmpcore,
NULL
};
@ -474,7 +504,6 @@ metadatamux_xmp_get_tagsmap_from_gsttag (const SchemaMap * schema_map,
if (NULL == schema_map)
goto done;
for (i = 0; schema_map->tags_map[i].gst_tag; i++) {
if (0 == strcmp (schema_map->tags_map[i].gst_tag, tag)) {
tags_map = (SchemaTagMap *) & schema_map->tags_map[i];
@ -567,10 +596,14 @@ void
metadataparse_xmp_iter_node_schema (GstTagList * taglist, GstTagMergeMode mode,
XmpPtr xmp, const char *schema, const char *path)
{
SchemaMap *schema_map = NULL;
const SchemaMap *schema_map = NULL;
gint i;
if (0 == strcmp (schema, "http://purl.org/dc/elements/1.1/")) {
schema_map = (SchemaMap *) & schema_map_dublin;
for (i = 0; schemas_map[i]; i++) {
if (0 == strcmp (schema, schemas_map[i]->schema)) {
schema_map = schemas_map[i];
break;
}
}
metadataparse_xmp_iter_array (taglist, mode, xmp, schema, path, schema_map);
@ -805,6 +838,8 @@ metadatamux_xmp_for_each_tag_in_list (const GstTagList * list,
XmpPtr xmp = (XmpPtr) user_data;
int i;
GST_DEBUG ("trying to map tag '%s' to xmp", tag);
for (i = 0; schemas_map[i]; i++) {
/* FIXME: should try to get all of values (index) for the tag */
@ -814,9 +849,7 @@ metadatamux_xmp_for_each_tag_in_list (const GstTagList * list,
metadatamux_xmp_get_tagsmap_from_gsttag (smap, tag);
if (stagmap) {
gchar *value = NULL;
GType type = gst_tag_get_type (tag);
switch (type) {
@ -827,8 +860,10 @@ metadatamux_xmp_for_each_tag_in_list (const GstTagList * list,
break;
}
if (value) {
GST_DEBUG ("found mapping for tag '%s' in schema %s", tag,
schemas_map[i]->prefix);
if (value) {
uint32_t options = 0;
#ifdef XMP_1_99_5
@ -857,13 +892,12 @@ metadatamux_xmp_for_each_tag_in_list (const GstTagList * list,
}
g_free (value);
}
} else {
GST_DEBUG ("no xmp mapping for tag '%s' in schema %s found", tag,
schemas_map[i]->prefix);
}
}
}
#endif /* else (ifndef HAVE_XMP) */