Originally Posted by apaige
Will VDPAU never work with video filters (mplayer -vf)?
It's perfectly possible to implement filters when using VDPAU decoding. All that needs to be done is perform a getbits after the decode operation to download the picture data to the CPU for filter application. the getbits operation will naturally suck a little time/bandwidth, but hopefully that shouldn't be too much of an issue.
The only reason this isn't currently implemented in ffmpeg/MPlayer is because nobody has written it. Once the existing VPDAU patches get fully merged into ffmpeg/MPlayer SVN, hopefully people can start taking a look at adding new features like this.