Description:

libvdpau has optional support for detecting the driver name via the DRI2 protocol (2.2 onwards). It is used to retrieve the driver name, that is to be as vdpau provider - nvidia, nouveau, r300, r600, radeonsi. Originally only nvidia was the one sane option, although with the developing state of the mesa/gallium vdpau state tracker I believe that a reasonable approach would be to rebuild libvdpau with support for it.

Note: Currently nvidia (via their proprietary driver), nouveau (vp4 capable hw with vp2 coming soon) and ati/amd/radeons (uvd2 capable hw) are available

Example: I'm using my nv96 (nvidia GT120 M) vp2 capable card to decode h264 :)

Additional info:
* package version(s)
extra/libvdpau 0.6-1

Steps to reproduce:
1. Install mesa and one of supported drivers
2. Start any vdpau capable program -
3. Observe no output (unless you're using nvidia), as the wrapper fails to retrieve the provider and falls back to libvdpau_nvidia.so

To resolve:
Add the following dependencies and rebuild libvdpau
* makedepends - dri2proto >= 2.2
* depends - libxext