public float[] GetRawSpectrData(string filename, FFTSize size, float fps, int maxwidth, int startscan = 0)
{
float[] Spectr;
GetFFTData(filename, size, fps, maxwidth, startscan);
Spectr = DoScanSpectr(ref Data);
return(Spectr);
}
//most of this code is stolen from the example in the CSCore github so idk what it does 40% of the time
public void Initialize(FFTSize _size = FFTSize._4096)
{
size = _size;
_soundIn = new WasapiLoopbackCapture();
_soundIn.Initialize();
var soundInSource = new SoundInSource(_soundIn);
var source = soundInSource.ToSampleSource();
_fft = new FftProvider(source.WaveFormat.Channels, (FftSize)size);
var n = new SingleBlockNotificationStream(source);
n.SingleBlockRead += (s, a) => _fft.Add(a.Left, a.Right);
_source = n.ToWaveSource(16);
byte[] buffer = new byte[_source.WaveFormat.BytesPerSecond];
soundInSource.DataAvailable += (s, aEvent) =>
{
int read;
while ((read = _source.Read(buffer, 0, buffer.Length)) > 0)
{
;
}
};
_soundIn.Start();
}
public SpectrumVisualizer()
{
InitializeComponent();
FFTSize = 2048;
string[] windowingTypes = Enum.GetNames(typeof(FFTTransformer.eWindowingFunction));
cmbWindowFunc.Items.AddRange(windowingTypes);
cmbWindowFunc.Text = FFTDisplay.WindowingFunction.ToString();
cmbAverage.Text = FFTDisplay.VerticalSmooth.ToString();
cmbFFTSize.Text = FFTSize.ToString();
}
public Bitmap GetBitmapSpectrum(string filename, FFTSize size, float fps, int maxwidth, int startscan = 0)
{
Bitmap Image;
//glfrm = new GLForm();
//glfrm.Width = 1024;
//glfrm.Height = 518;
//glfrm.Show();
GetFFTData(filename, size, fps, maxwidth);
int heigth = (int)size;
int width = (int)Data.Count;
if (width == 0)
{
Image = new Bitmap(1, 1);
return(Image);
}
Image = new Bitmap(width, heigth);
float min = 9999;
float max = -9999;
for (int x = 0; x < width; x++)
{
for (int y = 0; y < heigth; y++)
{
if (Data[x][y] > max)
{
max = Data[x][y];
}
else
{
if (Data[x][y] < min)
{
min = Data[x][y];
}
}
}
}
float amin = Math.Abs(min);
float kor = 1 / (max + amin);
for (int x = 0; x < width; x++)
{
for (int y = 0; y < heigth; y++)
{
Data[x][y] = Data[x][y] + amin;
Data[x][y] = Data[x][y] * kor * 16 * 50;
Data[x][y] = Data[x][y] * Data[x][y];
}
}
double dd, dd2, d, dd3, d2;
byte d1, d3, d4, d5;
Color c;
for (int x = 0; x < width; x++)
{
dd = 0;
dd2 = 0;
for (int y = 0; y < heigth; y++)
{
d = Math.Ceiling(Data[x][y]);
dd3 = 0;
if (d > 255)
{
d = 255;
}
if (d < 0)
{
d = 0;
}
dd = dd * 100 + d; dd = dd / 101;
dd2 = dd2 * 10 + d; dd2 = dd2 / 11;
d1 = (byte)d;
d2 = Math.Ceiling(dd2);
d3 = (byte)d2;
d4 = (byte)Math.Ceiling(dd);
dd3 = d4 + d3 + d1;
dd3 = dd3 / 3;
d5 = (byte)Math.Ceiling(dd3);
c = Color.FromArgb(255, d3, d4, d5);
Image.SetPixel(x, y, c);
}
}
//glfrm.BackgroundImage = Image;
//glfrm.BackgroundImageLayout = ImageLayout.Zoom;
//glfrm.Invalidate();
//Application.DoEvents();
//glfrm.Show ();
//Thread.Sleep(3000);
//glfrm.Close();
return(Image);
}
public List <float[]> GetFFTData(string filename, FFTSize size, float fps, int maxwidth, int startscan = 0)
{
Un4seen.Bass.BASSData FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT256;
int arlen = 0;
if (size == FFTSize.FFT128)
{
FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT256;
}
if (size == FFTSize.FFT256)
{
FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT512;
}
if (size == FFTSize.FFT512)
{
FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT1024;
}
if (size == FFTSize.FFT1024)
{
FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT2048;
}
if (size == FFTSize.FFT2048)
{
FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT4096;
}
if (size == FFTSize.FFT4096)
{
FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT8192;
}
if (size == FFTSize.FFT8192)
{
FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT16384;
}
arlen = (int)size;
int len = (int)FFTType;
GC.Collect();
time = 0;
Data.Clear();
Bass.BASS_Init(-1, 44100, BASSInit.BASS_DEVICE_NOSPEAKER, IntPtr.Zero);
// create the stream
int chan = Bass.BASS_StreamCreateFile(filename, 0, 0,
BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_DECODE);
Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_UPDATEPERIOD, 0);
var pos = Bass.BASS_ChannelGetLength(chan);
var p = Bass.BASS_ChannelBytes2Seconds(chan, pos);
//Console.Write("ScanFile");
//Console.Clear();
long byte_pos = 0;
int n = 0;
while (byte_pos < pos)
{
n++;
if (Data.Count > maxwidth)
{
break;
}
else if (n > startscan)
{
byte_pos = Bass.BASS_ChannelSeconds2Bytes(chan, time);
//double d = (double)n / (double)maxwidth;
//d = d * 100;
//d = Math.Ceiling(d);
//if (d % 10 == 0)
//{
// Console.SetCursorPosition(0, 0);
// Console.Write(filename);
// Console.SetCursorPosition(0, 1);
// Console.Write(d.ToString() + "%");
//}
Bass.BASS_ChannelSetPosition(chan, byte_pos, BASSMode.BASS_POS_BYTES);
float[] fft = new float[arlen];
Bass.BASS_ChannelGetData(chan, fft, len);
Data.Add(fft);
}
time += 1F / fps;
}
Bass.BASS_ChannelPause(chan);
Bass.BASS_Stop();
Bass.BASS_StreamFree(chan);
GC.Collect();
return(Data);
}
public float[] GetRawSpectrData(string filename,FFTSize size,float fps,int maxwidth,int startscan=0)
{
float[] Spectr;
GetFFTData(filename, size, fps, maxwidth, startscan);
Spectr = DoScanSpectr(ref Data);
return Spectr;
}
public List<float[]> GetFFTData(string filename, FFTSize size, float fps, int maxwidth, int startscan=0)
{
Un4seen.Bass.BASSData FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT256;
int arlen = 0;
if (size == FFTSize.FFT128) FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT256;
if (size == FFTSize.FFT256) FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT512;
if (size == FFTSize.FFT512) FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT1024;
if (size == FFTSize.FFT1024) FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT2048;
if (size == FFTSize.FFT2048) FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT4096;
if (size == FFTSize.FFT4096) FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT8192;
if (size == FFTSize.FFT8192) FFTType = Un4seen.Bass.BASSData.BASS_DATA_FFT16384;
arlen=(int)size;
int len = (int)FFTType;
GC.Collect();
time = 0;
Data.Clear();
Bass.BASS_Init(-1, 44100, BASSInit.BASS_DEVICE_NOSPEAKER, IntPtr.Zero);
// create the stream
int chan = Bass.BASS_StreamCreateFile(filename, 0, 0,
BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_DECODE);
Bass.BASS_SetConfig(BASSConfig.BASS_CONFIG_UPDATEPERIOD, 0);
var pos = Bass.BASS_ChannelGetLength(chan);
var p = Bass.BASS_ChannelBytes2Seconds (chan, pos);
//Console.Write("ScanFile");
//Console.Clear();
long byte_pos=0;
int n = 0;
while (byte_pos<pos)
{
n++;
if (Data.Count > maxwidth)
{
break;
}
else if(n>startscan)
{
byte_pos = Bass.BASS_ChannelSeconds2Bytes(chan, time);
//double d = (double)n / (double)maxwidth;
//d = d * 100;
//d = Math.Ceiling(d);
//if (d % 10 == 0)
//{
// Console.SetCursorPosition(0, 0);
// Console.Write(filename);
// Console.SetCursorPosition(0, 1);
// Console.Write(d.ToString() + "%");
//}
Bass.BASS_ChannelSetPosition(chan, byte_pos, BASSMode.BASS_POS_BYTES);
float[] fft = new float[arlen];
Bass.BASS_ChannelGetData(chan, fft, len);
Data.Add(fft);
}
time += 1F / fps;
}
Bass.BASS_ChannelPause(chan);
Bass.BASS_Stop();
Bass.BASS_StreamFree(chan);
GC.Collect();
return Data;
}
public Bitmap GetBitmapSpectrum(string filename, FFTSize size, float fps,int maxwidth, int startscan=0)
{
Bitmap Image;
//glfrm = new GLForm();
//glfrm.Width = 1024;
//glfrm.Height = 518;
//glfrm.Show();
GetFFTData(filename, size, fps, maxwidth);
int heigth = (int)size;
int width = (int)Data.Count ;
if (width==0)
{
Image = new Bitmap(1, 1);
return Image;
}
Image = new Bitmap(width, heigth);
float min = 9999;
float max = -9999;
for (int x = 0; x < width; x++)
{
for (int y = 0; y < heigth; y++)
{
if (Data[x][y]>max)
{
max = Data[x][y];
}
else
{
if (Data[x][y]<min)
{
min = Data[x][y];
}
}
}
}
float amin = Math.Abs(min);
float kor = 1 / (max + amin);
for (int x = 0; x < width; x++)
{
for (int y = 0; y < heigth; y++)
{
Data[x][y] = Data[x][y] + amin;
Data[x][y] = Data[x][y] * kor * 16*50;
Data[x][y] = Data[x][y] * Data[x][y];
}
}
double dd, dd2,d,dd3,d2;
byte d1, d3, d4,d5;
Color c;
for (int x = 0; x < width; x++)
{
dd = 0;
dd2 = 0;
for (int y = 0; y < heigth; y++)
{
d = Math.Ceiling(Data[x][y]);
dd3 = 0;
if (d>255)
{
d = 255;
}
if (d < 0)
{
d = 0;
}
dd = dd * 100 + d; dd = dd / 101;
dd2 = dd2 * 10 + d; dd2 = dd2 / 11;
d1=(byte)d;
d2 = Math.Ceiling(dd2);
d3= (byte)d2;
d4 = (byte)Math.Ceiling(dd) ;
dd3 = d4 + d3 + d1;
dd3 = dd3 / 3;
d5 = (byte)Math.Ceiling(dd3);
c = Color.FromArgb(255, d3,d4, d5);
Image.SetPixel(x, y, c);
}
}
//glfrm.BackgroundImage = Image;
//glfrm.BackgroundImageLayout = ImageLayout.Zoom;
//glfrm.Invalidate();
//Application.DoEvents();
//glfrm.Show ();
//Thread.Sleep(3000);
//glfrm.Close();
return Image;
}
