In just the few weeks since Mesa 7.11 was branched, there's already been committed to Mesa 7.12-devel a number of Intel Gallium3D driver improvements, numerous OpenGL 3.0 advancements, the Gallium3D XA State Tracker, and floating-point depth buffers. Just being added to the list now for this next Mesa release will be the long-awaited Mesa pipe-video merge.
The Mesa pipe-video branch, which contains all of the Gallium3D work for bringing X-Video Motion Compensation (XvMC) and Video Decode and Presentation API for Unix (VDPAU) support, is about to be merged to Git master.
Christian König, AMD's newest open-source employee from Germany, has been the developer largely responsible for adding XvMC support to the R600g driver and more recently he's been tackling VDPAU support for Radeon Gallium3D. This is after the R300g video work before that by Christian and others.
Also responsible for part of Mesa pipe-video is Younes Manton, who was the Google Summer of Code student developer several years back that began on Gallium3D video decoding support for Nouveau.
Per this mailing list announcement today, Mesa pipe-video will soon land in Git master. More details at that time. Those interested in playing with pipe-video right now can find it in this Git branch.