if (wim->image_metadata) {
for (unsigned i = 0; i < wim->hdr.image_count; i++)
put_image_metadata(wim->image_metadata[i], NULL);
if (wim->image_metadata) {
for (unsigned i = 0; i < wim->hdr.image_count; i++)
put_image_metadata(wim->image_metadata[i], NULL);