pub unsafe extern "C" fn opus_multistream_surround_encoder_create(
Fs: opus_int32,
channels: c_int,
mapping_family: c_int,
streams: *mut c_int,
coupled_streams: *mut c_int,
mapping: *mut c_uchar,
application: c_int,
error: *mut c_int,
) -> *mut OpusMSEncoder