void
exif_content_fix (ExifContent *c)
{
ExifIfd ifd = exif_content_get_ifd (c);
ExifDataType dt;
ExifEntry *e;
unsigned int i, num;
if (!c)
return;
dt = exif_data_get_data_type (c->parent);
/*
* First of all, fix all existing entries.
*/
exif_content_foreach_entry (c, fix_func, NULL);
/*
* Go through each tag and if it's not recorded, remove it. If one
* is removed, exif_content_foreach_entry() will skip the next entry,
* so if this happens do the loop again from the beginning to ensure
* they're all checked. This could be avoided if we stop relying on
* exif_content_foreach_entry but loop intelligently here.
*/
do {
num = c->count;
exif_content_foreach_entry (c, remove_not_recorded, NULL);
} while (num != c->count);
/*
* Then check for non-existing mandatory tags and create them if needed
*/
num = exif_tag_table_count();
for (i = 0; i < num; ++i) {
const ExifTag t = exif_tag_table_get_tag (i);
if (exif_tag_get_support_level_in_ifd (t, ifd, dt) ==
EXIF_SUPPORT_LEVEL_MANDATORY) {
if (exif_content_get_entry (c, t))
/* This tag already exists */
continue;
exif_log (c->priv->log, EXIF_LOG_CODE_DEBUG, "exif-content",
"Tag '%s' is mandatory in IFD '%s' and has therefore been added.",
exif_tag_get_name_in_ifd (t, ifd), exif_ifd_get_name (ifd));
e = exif_entry_new ();
exif_content_add_entry (c, e);
exif_entry_initialize (e, t);
exif_entry_unref (e);
}
}
}
static void
show_ifd( ExifContent *content, void *client )
{
int *ifd = (int *) client;
printf( "- ifd %d\n", *ifd );
exif_content_foreach_entry( content, show_entry, client );
*ifd += 1;
}
static void analyzer_jpeg_exif_content_process(ExifContent *content, void *pload) {
ExifIfd ifd = exif_content_get_ifd(content);
// Don't parse IFD_1 which is the thumbnail IFD and the interop one which holds no interesting data
if (ifd == EXIF_IFD_1 || ifd == EXIF_IFD_INTEROPERABILITY)
return;
exif_content_foreach_entry(content, analyzer_jpeg_exif_entry_analyze, pload);
}
static void
vips_exif_exif_content( ExifContent *content, VipsExifRemove *ve )
{
ve->content = content;
ve->to_remove = NULL;
exif_content_foreach_entry( content,
(ExifContentForeachEntryFunc) vips_exif_exif_entry, ve );
vips_slist_map2( ve->to_remove,
(VipsSListMap2Fn) vips_exif_exif_remove, ve, NULL );
VIPS_FREEF( g_slist_free, ve->to_remove );
}
void
exif_content_fix (ExifContent *c)
{
ExifIfd ifd = exif_content_get_ifd (c);
ExifDataType dt;
ExifEntry *e;
unsigned int i, num;
if (!c)
return;
dt = exif_data_get_data_type (c->parent);
exif_content_foreach_entry (c, fix_func, NULL);
do {
num = c->count;
exif_content_foreach_entry (c, remove_not_recorded, NULL);
} while (num != c->count);
num = exif_tag_table_count();
for (i = 0; i < num; ++i) {
const ExifTag t = exif_tag_table_get_tag (i);
if (exif_tag_get_support_level_in_ifd (t, ifd, dt) ==
EXIF_SUPPORT_LEVEL_MANDATORY) {
if (exif_content_get_entry (c, t))
continue;
exif_log (c->priv->log, EXIF_LOG_CODE_DEBUG, "exif-content",
"Tag '%s' is mandatory in IFD '%s' and has therefore been added.",
exif_tag_get_name_in_ifd (t, ifd), exif_ifd_get_name (ifd));
e = exif_entry_new ();
exif_content_add_entry (c, e);
exif_entry_initialize (e, t);
exif_entry_unref (e);
}
}
}
static void
metadataparse_exif_data_foreach_content_func (ExifContent * content,
void *user_data)
{
ExifIfd ifd = exif_content_get_ifd (content);
if (ifd == EXIF_IFD_0 || ifd == EXIF_IFD_EXIF || ifd == EXIF_IFD_GPS) {
GST_LOG ("\n Content %p: %s (ifd=%d)", content, exif_ifd_get_name (ifd),
ifd);
exif_content_foreach_entry (content,
metadataparse_exif_content_foreach_entry_func, user_data);
}
}
void
exif_content_fix (ExifContent *c)
{
ExifIfd ifd = exif_content_get_ifd (c);
ExifDataType dt;
ExifTag t;
ExifEntry *e;
if (!c) return;
dt = exif_data_get_data_type (c->parent);
/* First of all, fix all existing entries. */
exif_content_foreach_entry (c, fix_func, NULL);
/*
* Then check for existing tags that are not allowed and for
* non-existing mandatory tags.
*/
for (t = 0; t <= 0xffff; t++) {
switch (exif_tag_get_support_level_in_ifd (t, ifd, dt)) {
case EXIF_SUPPORT_LEVEL_MANDATORY:
if (exif_content_get_entry (c, t)) break;
exif_log (c->priv->log, EXIF_LOG_CODE_DEBUG, "exif-content",
"Tag '%s' is mandatory in IFD '%s' and has therefore been added.",
exif_tag_get_name_in_ifd (t, ifd), exif_ifd_get_name (ifd));
e = exif_entry_new ();
exif_content_add_entry (c, e);
exif_entry_initialize (e, t);
exif_entry_unref (e);
break;
case EXIF_SUPPORT_LEVEL_NOT_RECORDED:
e = exif_content_get_entry (c, t);
if (!e) break;
exif_log (c->priv->log, EXIF_LOG_CODE_DEBUG, "exif-content",
"Tag '%s' is not recoreded in IFD '%s' and has therefore been "
"removed.", exif_tag_get_name_in_ifd (t, ifd),
exif_ifd_get_name (ifd));
exif_content_remove_entry (c, e);
break;
case EXIF_SUPPORT_LEVEL_OPTIONAL:
default:
break;
}
}
}
static void load_exif_tags( ExifData * ed , JSON::Object & tags )
{
tplog2( " LOADING EXIF TAGS" );
exif_data_set_option( ed , EXIF_DATA_OPTION_IGNORE_UNKNOWN_TAGS );
exif_data_set_option( ed , EXIF_DATA_OPTION_FOLLOW_SPECIFICATION );
exif_data_fix( ed );
ExifClosure closure;
closure.exif_data = ed;
closure.tags = & tags;
for ( int i = 0; i < EXIF_IFD_COUNT; ++i )
{
if ( ExifContent * c = ed->ifd[i] )
{
exif_content_foreach_entry( c , foreach_exif_entry , & closure );
}
}
tplog2( " LOADED EXIF TAGS" );
}
static void
vips_exif_get_content( ExifContent *content, VipsExifParams *params )
{
exif_content_foreach_entry( content,
(ExifContentForeachEntryFunc) vips_exif_attach_entry, params );
}
static void
exif_content_cb (ExifContent *content, gpointer data)
{
exif_content_foreach_entry (content, exif_entry_cb, data);
}
static void
attach_exif_content( ExifContent *content, VipsExif *ve )
{
exif_content_foreach_entry( content,
(ExifContentForeachEntryFunc) attach_exif_entry, ve );
}
static void
attach_exif_content( ExifContent *content, IMAGE *im )
{
exif_content_foreach_entry( content,
(ExifContentForeachEntryFunc) attach_exif_entry, im );
}
static void
show_ifd( ExifContent *content, void *client )
{
exif_content_foreach_entry( content, show_entry, client );
printf( "-\n" );
}
static int Centries (lua_State *L) { /** content:entries() */
ExifContent *content = checkcontent(L);
lua_newtable(L);
exif_content_foreach_entry(content, entryfunc, (void *)L);
return 1;
}
static void parse_exif_ifd(ExifContent * content, void *data) {
exif_content_foreach_entry(content, parse_exif_entry, data);
}
