Informikon

I've tried before to use this method in C# but I failed. I don't think I have seen code using it on the net. So here is a snippet using it. The important line is the second last one, it seems that you have to call "Marshal.ReleaseComObject".

unsafe int ISampleGrabberCB.SampleCB( double SampleTime, IMediaSample pSample )
{
IntPtr ptr;
pSample.GetPointer( out ptr );
byte *b = (byte *)ptr;
for (int x = 1; x <= videoHeight; x++)
{
for (int y = 0; y < videoStride; y++)
{
*b ^= 0xff;
b++;
}

b = (byte *)(ptr);
b += (x * videoStride);
}
Marshal.ReleaseComObject( pSample ); 
return 0;
}

With this simple modification, the CsEzRgb24 sample can be made to run using the BufferCB or the SampleCB callback.

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