namespace NSpeex
{
    using System;

    internal class LtpForcedPitch : Ltp
    {
        public sealed override int Quant(float[] target, float[] sw, int sws, float[] ak, float[] awk1, float[] awk2, float[] exc, int es, int start, int end, float pitch_coef, int p, int nsf, Bits bits, float[] exc2, int e2s, float[] r, int complexity)
        {
            if (pitch_coef > 0.99f)
            {
                pitch_coef = 0.99f;
            }
            for (int i = 0; i < nsf; i++)
            {
                exc[es + i] = exc[(es + i) - start] * pitch_coef;
            }
            return start;
        }

        public sealed override int Unquant(float[] exc, int es, int start, float pitch_coef, int nsf, float[] gain_val, Bits bits, int count_lost, int subframe_offset, float last_pitch_gain)
        {
            if (pitch_coef > 0.99f)
            {
                pitch_coef = 0.99f;
            }
            for (int i = 0; i < nsf; i++)
            {
                exc[es + i] = exc[(es + i) - start] * pitch_coef;
            }
            gain_val[0] = gain_val[2] = 0f;
            gain_val[1] = pitch_coef;
            return start;
        }
    }
}