When NVIDIA introduced VDPAU support
in November for providing excellent GPU playback support on Linux
they released a set of patches that enabled the Video Decode and Presentation API for Unix support within the FFmpeg
projects. Initially it looked like these patches would not be accepted into the mainline code-base, but committed to the FFmpeg repository last night was support for VDPAU.
adds in support for hardware-accelerated H.264 video decoding using VDPAU. The MPlayer support hopefully isn't far behind. MythTV
have already added support for this video API.