public static int GetCoeffCount(AmbisonicOrder order)
{
if (order == AmbisonicOrder.First)
{
return(4);
}
else if (order == AmbisonicOrder.Second)
{
return(9);
}
else if (order == AmbisonicOrder.Third)
{
return(16);
}
return(0);
}
internal void Setup(AmbisonicOrder order, AmbisonicChannelOrder channelOrder, AmbisonicNormalisation normalisation, int bufferCount)
{
Debug.Assert(bufferCount > 1 && bufferCount < 100);
lock (this)
{
_order = order;
_channelOrder = channelOrder;
_normalisation = normalisation;
int sampleCount = Ambisonic.GetCoeffCount(order) * AudioSettings.outputSampleRate / 10; // 1/10 second buffer
_activeSampleIndex = 0;
_activeSamples = null;
_fullBuffers.Clear();
_emptyBuffers.Clear();
for (int i = 0; i < bufferCount; i++)
{
float[] buffer = new float[sampleCount];
_emptyBuffers.Enqueue(buffer);
}
UpdateCoefficients();
}
}
public static extern void EncodeMonoToAmbisonic(IntPtr instance, float[] inSamples, int inSamplesOffset, int inFrameCount, int inChannelCount, float[] outSamples, int outSamplesOffset, int outSamplesLength, AmbisonicOrder order);
public static extern void UpdateAmbisonicWeights(IntPtr instance, float azimuth, float elevation, AmbisonicOrder order, AmbisonicChannelOrder channelOrder, float[] normalisationWeights);
