I have tried UHD Planet Earth 2, and its video part contains the features of HDR and BT.2020 color primary.
To display the right color, MadVR video renderer is chosen in MPC-HC.
I have found that if SVP is off, the color is right, but when SVP is on (or actually ffdshow raw filter is on as an external filter, even if SVP manager is off), the color is absolutely wrong (whiter and dull).
It seems that ffdshow filter doesn't support the new video features used by UHD.
Is there any way to have SVP support UHD features?