Xvid-1.2.2 is out. The changelog:

Changes since 1.2.1:
xvidcore library
* Workaround for nasm bug with Mach-O/OSX target
* Fix for missing resync marker range check (reported by IBM X-Force. Thanks go to John McDonald and Christopher Valasek)
* Improved precision for RGB<->YUV conversions
* Fix for potential RGB24 access violation
* Updated compiler options for Apple PPC target
* Fixed MSVC6 projects to work for path names with spaces

VFW frontend
* Updated mingw makefile

DShow frontend
* Bugfix for wrong handling of xvidcore XVID_ERR_MEMORY return code (reported by IBM X-Force. Thanks to John McDonald and Mark Dowd)

I have two builds uploaded: One which is a plain compile of the release-sources - this is probably the one you're looking for, find it right on top of this page - and another one with an experimental addition. The "-VAQ"-Build adds a new routine for calculating the quantizer level of single macroblocks in the Adaptive Quantization mode. (In case you don't know which build to download: Take the one marked with "Download" on the top of the page!)

Also, as I currently don't have access to my 64-Bits-machine, I can't offer a build for 64-Bit operating systems. Sorry about that.