public FloatDecimator(int stageCount, double samplerate, DecimationFilterType filterType, int threadCount)
{
_stageCount = stageCount;
_threadCount = threadCount;
_cicCount = 0;
var firCount = 0;
switch (filterType)
{
case DecimationFilterType.Fast:
_cicCount = stageCount;
break;
case DecimationFilterType.Audio:
firCount = stageCount;
break;
case DecimationFilterType.Baseband:
while (_cicCount < stageCount && samplerate >= _minimumCICSampleRate)
{
_cicCount++;
samplerate /= 2;
}
firCount = stageCount - _cicCount;
break;
}
_cicDecimatorsBuffer = UnsafeBuffer.Create(_threadCount * _cicCount, sizeof(CicDecimator));
_cicDecimators = (CicDecimator *)_cicDecimatorsBuffer;
for (var i = 0; i < _threadCount; i++)
{
for (var j = 0; j < _cicCount; j++)
{
_cicDecimators[i * _cicCount + j] = new CicDecimator();
}
}
_firFilters = new FirFilter[firCount];
for (var i = 0; i < firCount; i++)
{
_firFilters[i] = new FirFilter(DecimationKernels.Kernel51, 2);
}
}
public FloatDecimator(int stageCount, double samplerate, DecimationFilterType filterType, int threadCount)
{
_stageCount = stageCount;
_threadCount = threadCount;
_cicCount = 0;
var firCount = 0;
switch (filterType)
{
case DecimationFilterType.Fast:
_cicCount = stageCount;
break;
case DecimationFilterType.Audio:
firCount = stageCount;
break;
case DecimationFilterType.Baseband:
while (_cicCount < stageCount && samplerate >= _minimumCICSampleRate)
{
_cicCount++;
samplerate /= 2;
}
firCount = stageCount - _cicCount;
break;
}
_cicDecimatorsBuffer = UnsafeBuffer.Create(_threadCount * _cicCount, sizeof(CicDecimator));
_cicDecimators = (CicDecimator*)_cicDecimatorsBuffer;
for (var i = 0; i < _threadCount; i++)
{
for (var j = 0; j < _cicCount; j++)
{
_cicDecimators[i * _cicCount + j] = new CicDecimator();
}
}
_firFilters = new FirFilter[firCount];
for (var i = 0; i < firCount; i++)
{
_firFilters[i] = new FirFilter(DecimationKernels.Kernel51, 2);
}
}
