Get the type of the metadata block at the current position. This
avoids reading the actual block data which can save time for large
blocks.
\param iterator A pointer to an existing initialized iterator.
\assert
\code iterator != NULL \endcode
\a iterator has been successfully initialized with
FLAC__metadata_simple_iterator_init()
\retval FLAC__MetadataType
The type of the metadata block at the current iterator position.
Get the type of the metadata block at the current position. This avoids reading the actual block data which can save time for large blocks.
\param iterator A pointer to an existing initialized iterator. \assert \code iterator != NULL \endcode \a iterator has been successfully initialized with FLAC__metadata_simple_iterator_init() \retval FLAC__MetadataType The type of the metadata block at the current iterator position.