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VA-API video decode/encode interface is platform and window system independent but is primarily targeted at [[Direct Rendering Infrastructure]] (DRI) in [[X Window System]] on [[Unix]]-like [[operating system]]s (including [[Linux]], [[FreeBSD]], [[Solaris (operating system)|Solaris]]), and [[Android (operating system)|Android]], however it can potentially also be used with direct [[framebuffer]] and graphics sub-systems for video output. Accelerated processing includes support for [[Video codec|video decoding]], [[video coding|video encoding]], subpicture blending, and rendering.<ref name="ReferenceA">{{cite web|url=https://www.phoronix.com/scan.php?page=news_item&px=MTA0NDI|title=VA-API Video Acceleration On Intel Medfield - Phoronix|website=Phoronix.com|access-date=23 February 2019}}</ref>
The VA-API specification was originally designed by [[Intel]] for its [[Intel GMA|GMA (Graphics Media Accelerator)]] series of [[Graphics processing unit|GPU]] hardware with the specific purpose of eventually replacing the [[XvMC]] standard as the default Unix multi-platform equivalent of [[DirectX Video Acceleration|Microsoft Windows DirectX Video Acceleration (DxVA) API]], but today the API is no longer limited to Intel-specific hardware or GPUs.<ref>{{cite web|url=https://events.linuxfoundation.org/images/stories/pdf/lceu2012_debski.pdf|title=Video4Linux2: Path to a Standardized Video Codec API|website=Events.linuxfoundation.org|access-date=23 February 2019|archive-date=6 January 2014|archive-url=https://web.archive.org/web/20140106032317/https://events.linuxfoundation.org/images/stories/pdf/lceu2012_debski.pdf|url-status=dead}}</ref> Other hardware and manufacturers can freely use this open standard API for hardware accelerated video processing with their own hardware without paying a royalty fee.<ref name="lwn.net">{{cite web |url=https://lwn.net/Articles/339349/ |title=VA API slowly, but surely, making progress |author=Nathan Willis |date=2009-07-01 |website=Lwn.net}}</ref>
== Overview ==
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