multdiv
decoder->ctc_timestamp -= multdiv(ctc_rem,
multdiv(decoder->ctc_delta,
return multdiv(ctc, decoder->tsc_ctc_ratio_n, decoder->tsc_ctc_ratio_d);
multdiv(data->ctc_delta,
multdiv(ctc_rem, decoder->tsc_ctc_ratio_n,