Function silk_encode_frame 

pub fn silk_encode_frame(
    ps_enc: &mut SilkEncoderState,
    input: &[i16],
    rc: &mut RangeCoder,
    pn_bytes_out: &mut i32,
    cond_coding: i32,
    max_bits: i32,
    use_cbr: i32,
) -> i32