NVIDIA VDPAU Benchmarks

[Goga777]

ffmpeg-devellopers already have noticed this patch and commented it

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2008-November/056065.html

[bugmenot]

Why couldn't thy use open standard for video acceleration like VA-API or something like this? Proprietary stuff is wrong in the linux world...

[_txf_]

Why couldn't thy use open standard for video acceleration like VA-API or something like this? Proprietary stuff is wrong in the linux world...

at the moment VA-API is just a document dumped somewhere on freedesktop and inside some peoples brains. They might have used vaapi if it existed...

[bugmenot]

at the moment VA-API is just a document dumped somewhere on freedesktop and inside some peoples brains. They might have used vaapi if it existed...

For VA-API there is a plan. For their new acceleration mode there was no plan. They had to create it from the scratch. They could have use VA-API and improve it maybe. But they did not, because they don't want to help others.

[deanjo]

For VA-API there is a plan. For their new acceleration mode there was no plan. They had to create it from the scratch. They could have use VA-API and improve it maybe. But they did not, because they don't want to help others.

More like they can't be bothered to wait for the others to get their act together.

[_txf_]

More like they can't be bothered to wait for the others to get their act together.

exactly. Not to mention the fact that whatever changes they would request to vaapi would end up being discussed back and forth and probably go nowhere fast.

Trying to implement an api which is currently quite nebulous, would inevitably require them to refactor/redesign again later, so why bother? Just design their own. Maybe later they can move to vaapi or create a wrapper lib (vid acceleration pipelines seem to generally be quite homogenous)...

[linuxjacques]

which hardware does this feature support?

Can someone please point me to a list of exactly which NVidia hardware
is supported by the new VDPAU feature?

Thanks.

[deanjo]

Can someone please point me to a list of exactly which NVidia hardware
is supported by the new VDPAU feature?

Thanks.

Here is the official list

The API is called VDPAU (Video Decode and Presentation API for Unix). It provides a
large subset of PureVideo HD functionality for NVIDIA Linux, Solaris, and FreeBSD
users.

The current API documentation is here:

ftp://download.nvidia.com/XFree86/vd...tml/index.html

Some highlights of VDPAU:

• Defines an API for GPU-accelerated decode of MPEG-1, MPEG-2, H.264, and
  VC-1 bitstreams.
• Defines an API for post-processing of decoded video, including
  temporal and spatial deinterlacing, inverse telecine, and noise
  reduction.
• Defines an API for timestamp-based presentation of final video
  frames.
• Defines an API for compositing sub-picture, on-screen display,
  and other UI elements.

Note that VDPAU does not address content protection.

Some highlights/limitations of NVIDIA's current implementation:

• Supported on NVIDIA GPUs with the NVIDIA second generation video processors
  (see the end of this announcement for a complete GPU list).
• Currently, only one video stream can be decoded at a time; we hope to lift this
  restriction eventually.
• Available in the 180.06 NVIDIA public beta release:
  http://www.nvidia.com/object/linux_d...32_180.06.html
  http://www.nvidia.com/object/linux_d...64_180.06.html
  

  http://www.nvidia.com/object/freebsd_180.06.html

  
  http://www.nvidia.com/object/solaris...ay_180.06.html

The VDPAU support in the NVIDIA 180.06 beta release is still very
preliminary. We are aware of cases of visual corruption and in some
cases GPU hangs. We will be working on these issues over the next
several NVIDIA driver releases.

While NVIDIA's VDPAU implementation is not ready for end user use yet,
it should be far enough along that interested application developers
can begin working with it.

Additionally, NVIDIA has developed patches to ffmpeg and MPlayer to
demonstrate a video player using VDPAU:

ftp://download.nvidia.com/XFree86/vd...076399.tar.bz2

These patches include changes against libavcodec, libavutil, ffmpeg,
and MPlayer itself; they may serve as an example of how to use VDPAU.

Once we do some further testing, bugfixing, and cleanup, we will
contribute the MPlayer patches to the MPlayer developers.


If other hardware vendors are interested, they are welcome to also
provide implementations of VDPAU. The VDPAU API was designed to allow
a vendor backend to be selected at run time.



VDPAU is currently supported on the following NVIDIA GPUs:

Desktop GPUs:
GeForce 200 Series
GeForce 9 Series
GeForce 86xx Series
GeForce 85xx Series
GeForce 84xx Series
GeForce 8300 GS
GeForce 8800 GTS 512
GeForce 8800 GT
GeForce 8800 GS

Mobile GPUs:
GeForce 98xxM
GeForce 9700M
GeForce 96xxM
GeForce 9500M
GeForce 9300M
GeForce 9200M
GeForce 8800M
GeForce 8800M GTS
GeForce 8800M GTX
GeForce 8600M
GeForce 8400M

Motherboard GPUs:
GeForce 9400
GeForce 9300
GeForce 9100
GeForce 8300
GeForce 8200

VC-1 support in NVIDIA's VDPAU implementation currently requires GeForce
9300 GS, GeForce 9200M GS, GeForce 9300M GS, or GeForce 9300M GS.
__________________
Andy Ritger
Manager, NVIDIA Linux Graphics Driver

[linuxjacques]

Here is the official list

deanjo, thank you very much!

[npcomplete]

Can you still use post-decode filters with this?