The Full Wiki

More info on X-Video Bitstream Acceleration

X-Video Bitstream Acceleration: Wikis

Advertisements
  
  

Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.

Encyclopedia

From Wikipedia, the free encyclopedia

X-Video Bitstream Acceleration (XvBA), designed by AMD for its ATI Radeon GPU, is a future extension of the X video extension (Xv) for the X Window System on Linux operating-systems[1]. XvBA API allows video programs to offload portions of the video decoding process to the GPU video-hardware. Currently, the portions designed to be offloaded by XvBA onto the GPU are motion compensation (mo comp) and inverse discrete cosine transform (iDCT), and VLD (Variable-Length Decoding) for MPEG-2, MPEG-4 AVC (H.264) and VC-1 encoded video.

XvBA is a Linux equivalent of Microsoft's DirectX Video Acceleration (DxVA) API for Windows[1] and a competitor to NVIDIA's Video Decode and Presentation API for Unix (VDPAU)[2].

In November 2009 a backend for Video Acceleration API (VA API) was released for XvBA[3] which means any software that supports VA API will also support XvBA.[2]

Contents

Device drivers

Each hardware video GPU capable of XvBA video acceleration requires a X11 software device driver to enable these features. Currently only AMD's ATI Radeon graphics cards hardware that has support for Unified Video Decoder version 2.0 or later (primarily the Radeon HD 4000 series) are supported by the proprietary ATI Catalyst device driver.[4][5][6]

See also

References

External links

Advertisements

Advertisements






Got something to say? Make a comment.
Your name
Your email address
Message