public ISoundObj Subset(int start, int count)
{
bool started = false;
ISampleBuffer sb = GetInputEnum();
return(new CallbackSource(NumChannels, SampleRate, delegate(long n)
{
int nn;
bool more;
if (!started)
{
sb.Skip(start, out nn, out more);
started = true;
}
if (n > count)
{
return null;
}
ISample[] sa = sb.Read(1, out nn, out more);
if (sa.Length > 0)
{
return sa[0];
}
else
{
return null;
}
}));
}
public bool ReadTo(int n)
{
if (n < _samples.Count)
{
return(true);
}
if (_input == null)
{
_moreSamples = false;
return(_moreSamples);
}
if (_inputEnum == null)
{
_inputEnum = _input.GetBufferedEnumerator() as ISampleBuffer;
}
int nn = n - _samples.Count;
if (nn > 0 && _moreSamples)
{
if (n < int.MaxValue && _samples.Capacity < n)
{
_samples.Capacity = n;
}
int tot = 0;
int nnn;
while (_moreSamples && tot < nn)
{
ISample[] tmp = _inputEnum.Read(DSPUtil.BUFSIZE, out nnn, out _moreSamples);
for (int j = 0; j < nnn; j++)
{
_samples.Add(tmp[j]);
}
tot += nnn;
}
}
return(nn < 0 || _moreSamples);
}
