// Remove an existing EXIF entry from |exifData| if it exists. This is useful
// when replacing existing data, it's easier to just remove the data and
// re-allocate it than to adjust the amount of allocated data.
static void removeExistingEntry(ExifData* exifData, ExifIfd ifd, int tag) {
ExifEntry* entry = exif_content_get_entry(exifData->ifd[ifd],
static_cast<ExifTag>(tag));
if (entry) {
exif_content_remove_entry(exifData->ifd[ifd], entry);
}
}
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;
}
}
}
static void *
vips_exif_exif_remove( ExifEntry *entry, VipsExifRemove *ve )
{
#ifdef DEBUG
{
const char *tag_name;
char vips_name_txt[256];
VipsBuf vips_name = VIPS_BUF_STATIC( vips_name_txt );
tag_name = vips_exif_entry_get_name( entry );
vips_buf_appendf( &vips_name, "exif-ifd%d-%s",
exif_entry_get_ifd( entry ), tag_name );
printf( "vips_exif_exif_remove: %s\n", vips_buf_all( &vips_name ) );
}
#endif /*DEBUG*/
exif_content_remove_entry( ve->content, entry );
return( NULL );
}
