private void LogColor(float amplitude, string separator = "")
{
var hue = HueFromAmplitude(amplitude);
var value = amplitude > 0 ? 1 : 0;
Console.ForegroundColor = ColorFromSystem(ColorUtil.ColorFromHsv(hue, 1, value));
Console.Write($@"{amplitude:F2}{separator}");
}
private bool Procedure(int handle, IntPtr buffer, int length, IntPtr user)
{
if (_token.IsCancellationRequested)
{
LogUtil.Write("We dun canceled our token.");
Bass.Free();
return(false);
}
var samples = 256;
var fft = new float[samples]; // fft data buffer
var fftStereo = new float[3]; // fft data buffer
// Get our FFT for "everything"
var channelGetData = Bass.ChannelGetData(handle, fft, (int)DataFlags.FFT256);
//LogUtil.Write($"FFT {channelGetData}: " + JsonConvert.SerializeObject(fft));
var cData = new Dictionary <int, float>();
for (var a = 0; a < samples; a++)
{
var val = fft[a];
if (val > 0.01)
{
var amp = val * 100;
var freq = FftIndex2Frequency(a, samples, _frequency);
if (amp > _max)
{
_max = amp;
}
cData[freq] = amp;
}
}
// Now get them for the stereo left/right
channelGetData = Bass.ChannelGetData(handle, fftStereo, (int)DataFlags.FFTIndividual);
var amps = SortChannels(cData, fftStereo);
for (var q = 0; q < amps.Length; q++)
{
var amp = amps[q];
var value = amp > 0 ? 1 : 0;
_colors[q] = ColorUtil.ColorFromHsv(HueFromAmplitude(amp), 1, value);
}
return(true);
}