pub unsafe extern "C" fn gst_video_vbi_encoder_add_ancillary(
encoder: *mut GstVideoVBIEncoder,
composite: gboolean,
DID: u8,
SDID_block_number: u8,
data: *const u8,
data_count: c_uint,
) -> gboolean
Available on crate feature
v1_16
only.