Function rtaudio_open_stream 

pub unsafe extern "C" fn rtaudio_open_stream(
    audio: rtaudio_t,
    output_params: *mut rtaudio_stream_parameters_t,
    input_params: *mut rtaudio_stream_parameters_t,
    format: rtaudio_format_t,
    sample_rate: c_uint,
    buffer_frames: *mut c_uint,
    cb: rtaudio_cb_t,
    userdata: *mut c_void,
    options: *mut rtaudio_stream_options_t,
    errcb: rtaudio_error_cb_t,
) -> rtaudio_error_t

! Opens a stream with the specified parameters. See \ref RtAudio::openStream(). ! \return an \ref rtaudio_error.