HRESULT CHECKTRANSFORM (const cmediatype * mtin, const cmediatype * mtout) {
..memcmp (& pinput-> bmiheader, & poutput-> bmiheader, sizeof (bitmapinfoheader); // orthodontics, huh
}
CheckTransform first call
Pinput-> Bmiheader and Poutput-> BMIHeader content is the same
But again, it will become the three members of BIWIDTH BIHEIGHT BisizeImage.
It should be the next level of Filter's Input PIN modification (here is Video Render)
What did you learn? Familiar with DirectShow's working mode as much as possible to understand its way, you can't want to be of course
