MediaPortal Wiki 
DirectShow Filter Control
MediaPortal is able to alter the settings of some of the codecs installed. Only the installed codecs are displayed when you enter this section in MediaPortal Setup.
So this list will depend on which codecs you have installed and how many.
MPA Decoder
- This audio decoder will be installed by default unless the tick box relating to it in the installer is unchecked.
MPV Decoder
- This video decoder will be installed by default unless the tick box relating to it in the installer is unchecked.
DScaler Audio Decoder
Dscaler Video Decoder
nVidia Purevideo Decoder
- This is a popular decoder that can be purchased in three different versions (Bronze, Gold and Platinum) from nVidia. It seems to give good quality results for a large number of people. A disadvantage it that it does not decode high definiton material and development seems to have stalled at present.
PowerDVD 6 Decoder
PowerDVD 7 Decoder
- The PowerDVD7 Decoder is installed if you install the PowerDVD product from Cyberlink. It is capable of decoding both standard and high definition video. In order to use hardware accelerated H.264 decoding on certain new video cards you will need to download and install the latest patches from the Cyberlink website.
Video Mixing Renderer 9
- This contains the advanced settings for VMR9.
- You should have the "Use VMR9 Exclusive Mode checkbox ticked on for DirectX 9 cards or better for smoother video, especially fast motion scenes. DirectX Exclusive mode gives exactly that, exclusive rendering to the video file you're playing back. It avoids tearing of videos with a supported VMR9 capable graphics card.
Note that this checkbox should not be ticked if you are using EVR.
Enhanced Video Renderer
Enhanced Video Renderer (EVR) is the new video renderer supplied with Windows Vista. One of the advantages is that tearing to the picture is less likely to occur than when VMR9 is used.
Note that Windows Vista is required to use EVR with graphic card hardware acceleration.
