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
remove_not_recorded (ExifEntry *e, void *UNUSED(data))
{
ExifIfd ifd = exif_entry_get_ifd(e) ;
ExifContent *c = e->parent;
ExifDataType dt = exif_data_get_data_type (c->parent);
ExifTag t = e->tag;
if (exif_tag_get_support_level_in_ifd (t, ifd, dt) ==
EXIF_SUPPORT_LEVEL_NOT_RECORDED) {
exif_log (c->priv->log, EXIF_LOG_CODE_DEBUG, "exif-content",
"Tag 0x%04x is not recorded in IFD '%s' and has therefore been "
"removed.", t, exif_ifd_get_name (ifd));
exif_content_remove_entry (c, e);
}
}
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;
}
}
}
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);
}
}
}
