"In the open-source realm there has been talk of
extending XvMC to support video formats besides MPEG-2, but that
hasn't yet amounted to anything. Today though another video API is
now on scene with VA-API finally being implemented in MPlayer and
"VA-API (short for Video Acceleration API) is a software API
that has the backing of Intel and is designed to accelerate video
decoding, sub-picture blending, and rendering on the graphics
processor. The hopes with VA-API are to ultimately replace X-Video
Motion Compensation as being the predominate video API for Linux
systems. Unlike XvMC that is limited to MPEG-2 and IDCT / Motion
Compensation, VA-API is designed to support other standards such as
MPEG-4 and VC-1 along with accelerating IDCT, Motion Compensation,
VLC, bitstream processing, spatial-temporal deinterlacing, inverse
quantization, and other functions."
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