protected override void FillBuffer(float[] buffer, int offset, int count)
{
if (DoRead)
{
InputSignal.Read(buffer, offset, count);
if (WritePosition >= FBufferSize)
{
WritePosition %= FBufferSize;
}
var copyCount = Math.Min(FBufferSize - WritePosition, count);
Array.Copy(buffer, 0, FBuffer, WritePosition, copyCount);
if (copyCount < count) //copy rest to front
{
Array.Copy(buffer, 0, FBuffer, 0, count - copyCount);
}
WritePosition += count;
}
//do preview
if (PreviewSize > 0)
{
if (Preview.Length != PreviewSize)
{
Preview = new float[PreviewSize];
}
var stepsize = (FBufferSize / PreviewSize) + 1;
var index = 0;
for (int i = stepsize / 2; i < FBufferSize; i += stepsize)
{
Preview[index] = FBuffer[i];
index++;
}
}
}
protected override void FillBuffer(float[] buffer, int offset, int count)
{
if (InputSignal.Value != null)
{
InputSignal.Read(buffer, offset, count);
//just output the latest value
Value = buffer[count - 1];
}
}
protected override void FillBuffer(float[] buffer, int offset, int count)
{
if (InputSignal.Value != null)
{
InputSignal.Read(buffer, offset, count);
FDecoder.Write(buffer, count, 0);
if (FDecoder.GetQueueLength() > 0)
{
Timecode = FDecoder.Read().getTimecode();
}
}
}
protected override void FillBuffer(float[] buffer, int offset, int count)
{
if (InputSignal.Value != null)
{
InputSignal.Read(buffer, offset, count);
var max = 0.0;
for (int i = offset; i < count; i++)
{
max = Math.Max(max, Math.Abs(buffer[i]));
}
Max = max;
}
}
protected override void FillBuffer(float[] buffer, int offset, int count)
{
if (FBTrack != null && isValid)
{
InputSignal.Read(buffer, offset, count);
//base.FillBuffer(buffer, offset, count);
FBTrack.ProcessFrame(buffer, count);
if (FBTrack.Beat)
{
beatReadFlag = false;
}
Beat.Value = beatReadFlag ? false : true; // return true as long as beat was not yet registered by node
Bpm.Value = FBTrack.Bpm;
}
}
protected override void FillBuffer(float[] buffer, int offset, int count)
{
if (FGist != null)
{
InputSignal.Read(buffer, offset, count);
//base.FillBuffer(buffer, offset, count);
FGist.ProcessFrame(buffer, count);
FFT.Value = FGist.SpectrumData;
//get flags
AudioFeaturesFlags flags = (AudioFeaturesFlags)2047;
var features = FGist.GetFeatures(flags);
var vals = new float[11];
features.Values.CopyTo(vals, 0);
Features.Value = vals;
}
}
protected override void FillBuffer(float[] buffer, int offset, int count)
{
if (BufferOut.Length != Buffer.Size)
{
BufferOut = new float[Buffer.Size];
}
if (InputSignal.Value != null)
{
InputSignal.Read(buffer, offset, count);
Buffer.Write(buffer, offset, count);
}
else
{
buffer.ReadSilence(offset, count);
Buffer.Write(buffer, offset, count);
}
}
protected override void FillBuffer(float[] buffer, int offset, int count)
{
if (InputSignal.Value != null)
{
InputSignal.Read(buffer, offset, count);
//write to buffer
FRingBuffer.Write(buffer, offset, count);
//calc fft
var fftSize = FRingBuffer.Size;
if (FFFTBuffer.Length != fftSize)
{
FFFTBuffer = new double[fftSize];
FFTOut = new double[fftSize];
FWindow = AudioUtils.CreateWindowDouble(fftSize, WindowFunc);
}
FRingBuffer.ReadDoubleWindowed(FFFTBuffer, FWindow, 0, fftSize);
FFFT.RealFFT(FFFTBuffer, true);
Array.Copy(FFFTBuffer, FFTOut, fftSize);
}
}