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NVIDIA's VDPAU Picks Up HEVC 4:4:4 Support

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  • NVIDIA's VDPAU Picks Up HEVC 4:4:4 Support

    Phoronix: NVIDIA's VDPAU Picks Up HEVC 4:4:4 Support

    While NVIDIA is no longer active promoting their Video Decode and Presentation API for Unix "VDPAU" in favor of the cross-platform, CUDA-focused Video Codec SDK with NVENC/NVDEC, the VDPAU library still sees some rare activity from time to time...

    http://www.phoronix.com/scan.php?pag...VDPAU-HEVC-444

  • #2
    as usual on a first glance I thought, cool nouveau gained a new features, until I realized, is this again binary only? any good reason they can not properly support this in open vaapi, so normal programs like obs can use it? https://www.youtube.com/watch?v=qSvjduvylzA

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    • #3
      No information on VCE 4.0/4.1...

      ...guessing AMD hasn't worked on 4:4:4 for their cards yet...

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      • #4
        cross-platform, CUDA-focused Video Codec SDK with NVENC/NVDEC
        Cross platform but not cross GPU. The only cross GPU API is vaapi if you consider VDPAU dead.

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        • #5
          Originally posted by shmerl View Post
          The only cross GPU API is vaapi if you consider VDPAU dead.
          Exactly, just like the world is completely peaceful if you consider all the wars to be over.

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          • #6
            Originally posted by dcc24 View Post

            Exactly, just like the world is completely peaceful if you consider all the wars to be over.
            VDPAU though can be considered dead, if Nvidia de-prioritize it. So far it doesn't seem anyone is de-prioritizing vaapi.

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            • #7
              So... who wants to use HEVC 4:4:4 for their video-conferencing or surveillance cameras?
              Because if not used for such "real-time-encoding-needful" purposes, why use a hardware encoder? Software encoders are much more flexible and usually provide significantly better encoding results, just at the expense of waiting for the encoding result a little longer (which should really not matter if a video is encoded once, transferred N times and replayed M times).
              Or did I forget about the children who believe it is relevant that others get to see them playing games without significant latency? But even for them YUV 4:4:4 is not really relevant, 4:2:0 is just fine for their purposes.

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              • #8
                Does HEVC even have a future?

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                • #9
                  Originally posted by dwagner View Post
                  So... who wants to use HEVC 4:4:4 for their video-conferencing or surveillance cameras?
                  Because if not used for such "real-time-encoding-needful" purposes, why use a hardware encoder? Software encoders are much more flexible and usually provide significantly better encoding results, just at the expense of waiting for the encoding result a little longer (which should really not matter if a video is encoded once, transferred N times and replayed M times).
                  Or did I forget about the children who believe it is relevant that others get to see them playing games without significant latency? But even for them YUV 4:4:4 is not really relevant, 4:2:0 is just fine for their purposes.
                  Me, although not necessarily HEVC, and not necessarily videoconf or surveillance. Screen recording demands 4:4:4 for maximum clarity. Otherwise the screen looks less saturated and colors are less accurate (especially red and magenta).

                  Note that screen recording is real-time, and a 6700K can't do 4K at 60fps in real-time...

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                  • #10
                    Originally posted by wswartzendruber View Post
                    Does HEVC even have a future?
                    Doubtful, given how it penetrated like crap until now, and how AV1 got so large support.

                    In a year or so we will start getting hardware accelerators for AV1 and it's probably going to be officially over for HEVC.

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