Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Unified Video Decoder, previously called Universal Video Decoder, or UVD in short, is the video decoding unit from ATI Technologies to support hardware decode of H.264 and VC-1 video codec standards, and being a part of ATI Avivo HD technology.UVD currently only supports DXVA (DirectX Video Acceleration) API specification for the Microsoft Windows and Xbox 360 platforms to allow video decoding to be hardware accelerated, thus the media player software also has to support DXVA to be able to utilize UVD hardware acceleration. XvBA (X-Video Bitstream Acceleration) API as designed by AMD for its Radeon GPU is a future extension of the X video extension (Xv) for the X Window System on Linux and UNIX operating-systems that will enable UVD hardware acceleration on those platforms as well.

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