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Video Acceleration: Difference between revisions
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==VDPAU== | ==VDPAU== | ||
NVIDIA's proprietary [[Xorg hell|X.org]] video acceleration API, comparable to Microsoft's [http://en.wikipedia.org/wiki/DirectX_Video_Acceleration DXVA]. It is independent from [[CUDA]]. | NVIDIA's proprietary [[Xorg hell|X.org]] video acceleration API, comparable to Microsoft's [http://en.wikipedia.org/wiki/DirectX_Video_Acceleration DXVA]. It is independent from [[CUDA]]. | ||
==See Also== | |||
* [[Xorg hell]] page | |||
Revision as of 17:28, 20 May 2010
Linux offers access to video accelerators through programs like mplayer, VAAPI and vlc.
X-Video
Offloads 2D scaling and YUV colorspace conversions. Use xvinfo to determine Xv support:
X-Video Extension version 2.2
screen #0
Adaptor #0: "NV17 Video Texture"
number of ports: 32
port base: 313
operations supported: PutImage
supported visuals:
depth 24, visualID 0x21
depth 24, visualID 0x24
depth 24, visualID 0x25
depth 24, visualID 0x26...
XvMC
MPEG-2 and MPEG-4 offloading (NVIDIA's closed driver only supports MPEG-2, prefering VDPAU) via motion compensation and iDCT offload. Extends the Xv extension, using XvPorts. The 1.0 API specification was introduced in 2000.
VAAPI
The Video Acceleration API, a vendor-independent replacement for XvMC.
VDPAU
NVIDIA's proprietary X.org video acceleration API, comparable to Microsoft's DXVA. It is independent from CUDA.
See Also
- Xorg hell page
