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NVIDIA VDPAU Benchmarks

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  • #21
    ffmpeg-devellopers already have noticed this patch and commented it
    http://lists.mplayerhq.hu/pipermail/...er/056065.html

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    • #22
      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...

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      • #23
        Originally posted by bugmenot View Post
        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...

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        • #24
          Originally posted by _txf_ View Post
          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.

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          • #25
            Originally posted by bugmenot View Post
            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.

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            • #26
              Originally posted by deanjo View Post
              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)...

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              • #27
                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.

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                • #28
                  Originally posted by linuxjacques View Post
                  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:

                  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

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                  • #29
                    Originally posted by deanjo View Post
                    Here is the official list
                    deanjo, thank you very much!

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                    • #30
                      Can you still use post-decode filters with this?

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