public unsafe override int Read(byte[] buffer, int offset, int count)
{
int length = count / 2;
if (d == null || d.Length != length)
d = new double[length];
fixed(byte *tmp = buffer)
{
short *data = (short *)(tmp + offset);
int i;
FFTFilter.GetNoise(d, equalizer, (uint)sampleRate);
for (i = 0; i < length; i++)
{
data[i] = (short)(d[i] * short.MaxValue);
}
}
return(count);
}
public uint cb(byte *buf, uint length)
{
if (s != null)
{
lock (this.d) {
if (tmp == null || tmp.Length != (length * 2))
{
tmp = new byte[length * 2];
}
uint __tmp = (uint)s.Read(tmp, 0, (int)length);
fixed(byte *tmp2 = tmp)
{
//WaveOut.equalizer_process(eq, tmp2, buf);
short *tmp3 = (short *)(tmp2);
//if (_c == null || _c.Length != (int)(__tmp / 2)) _c = new Exocortex.DSP.ComplexF[(int)(__tmp / 2)];
if (_d == null || _d.Length != (int)(__tmp / 2))
{
_d = new double[(int)(__tmp / 2)];
}
//wave_lib2.VBFFT.to_complex(_c, (short*)(tmp2), (uint)(__tmp / 2));
/*//wave_lib2.VBFFT.forward(_c);*/
//wave_lib2.VBFFT.inverse(_c);
to_double(_d, tmp3, (uint)_d.Length);
/*wave_lib2.FFT2 f = new FFT2(_d.Length / 2);
* f.transform(_d, false);
* int j;
* double __tmpd = 1.0;
* int __tmpl=_d.Length;
* for (j = 0; j < __tmpl; j++)
* {
* if (j > (__tmpl / ((double)(120.0 / 44100.0) * (double)sampleRate)))
* {
* __tmpd = 0.05;
* }
* else
* {
* __tmpd = 1.0;
* }
* _d[j] *= __tmpd;
* //__tmpd /= 1.01;
* }
* double mult = 1;
* // multiply transforms to get convolution
* for (j = 0; j != _d.Length; j += 2)
* {
* double a = _d[j] - _d[j + 1];
* double b = _d[j] + _d[j + 1];
* _d[j] = a * mult;
* _d[j + 1] = b * mult;
* //mult += 0.001;
* }
* f.transform(_d, true);*/
FFTFilter.Process(_d, this._eq, this.sampleRate);
to_short((short *)buf, _d, (uint)_d.Length);
/*Exocortex.DSP.Fourier.FFT(_c, Exocortex.DSP.FourierDirection.Forward);
* Exocortex.DSP.Fourier.FFT(_c, Exocortex.DSP.FourierDirection.Forward);
* Exocortex.DSP.Fourier.FFT(_c, Exocortex.DSP.FourierDirection.Forward);*/
//Exocortex.DSP.Fourier.FFT(_c, Exocortex.DSP.FourierDirection.Backward);
//wave_lib2.VBFFT.to_short(tmp3, _c, (uint)_c.Length);
/*Exocortex.DSP.Fourier.FFT(_c, Exocortex.DSP.FourierDirection.Forward);
* //__tmp /= 2;
* //System.Array.Resize<Exocortex.DSP.ComplexF>(ref _c, _c.Length / 2);
* Exocortex.DSP.ComplexF mult = new Exocortex.DSP.ComplexF(1, 0);
* int j;
* // multiply transforms to get convolution
* for (j = 0; j != _c.Length; j += 2)
* {
* Exocortex.DSP.ComplexF a = _c[j] - _c[j + 1];
* Exocortex.DSP.ComplexF b = _c[j] + _c[j + 1];
* _c[j] = a * mult;
* _c[j + 1] = b * mult;
* //mult += 0.001;
* }
* Exocortex.DSP.Fourier.FFT(_c, Exocortex.DSP.FourierDirection.Backward);
* wave_lib2.VBFFT.to_short(tmp3, _c, (uint)_c.Length);*/
/*byte* __src = (byte*)tmp2;
* byte* __dst = (byte*)buf;
* int i;
* uint l = __tmp;
* for (i = 0; i < l; i++)
* {
*(__dst + i) = *(__src + i);
* }*/
}
//if (__tmp == 0) throw new Exception();
return(__tmp);
}
}
return(0);
}
