pub unsafe extern "C" fn gst_validate_media_descriptor_writer_add_pad(
writer: *mut GstValidateMediaDescriptorWriter,
pad: *mut GstPad,
) -> gboolean
pub unsafe extern "C" fn gst_validate_media_descriptor_writer_add_pad(
writer: *mut GstValidateMediaDescriptorWriter,
pad: *mut GstPad,
) -> gboolean