pub unsafe extern "C" fn ope_encoder_write(
enc: *mut OggOpusEnc,
pcm: *const opus_int16,
samples_per_channel: c_int,
) -> c_intpub unsafe extern "C" fn ope_encoder_write(
enc: *mut OggOpusEnc,
pcm: *const opus_int16,
samples_per_channel: c_int,
) -> c_int