[x86-64] Dolby Vision Development for PC

  • There is no forum rule banning CE from being mentioned. However comparison discussions have a habit of attracting trolls, and we prefer to avoid that kind of behaviour. Just keep the discussion sensible.

    Yeah of course I was not aware about that, thanks for the informations

  • There is no forum rule banning CE from being mentioned. However comparison discussions have a habit of attracting trolls, and we prefer to avoid that kind of behaviour. Just keep the discussion sensible.

    Thanks for clearing that up, Chewitt. I completely understand, and I'll keep the discussion sensible and constructive. Appreciate it.

  • Thank you, I’m just happy to contribute. Your iGPU is similar to mine and considerably more powerful than the N100, so the heavier logging should be less of an issue. I’d still recommend updating to the latest version.

    Regarding information similar to CoreELEC, I’m not very familiar with exactly what it displays. But details like the DV profile and CM version should be straightforward to expose, since I already have them in the logs.

    As for playback options, I’m currently focusing on standard, TV-led Dolby Vision. Adding LLDV (player-led) would be a substantial project. The player need to handle the display mapping currently done by the TV. That could increase GPU load and make things harder for small Intel iGPU. The main benefit would be compatibility with old TVs that require player-led DV and can not perform the display mapping. That said, I’m less familiar with LLDV, so there may be other use cases or benefits

    For me, the most interesting Dolby Vision processing features are:

    • Baking DV into HDR10
    • Generating HDR10+ metadata from DV

    As far as I know, CoreELEC doesn't support this. With a stronger GPU on x86, we actually have the performance headroom to experiment with this kind of workload, and this challenge drives me more. But if you seen more usefull usecases to cover I am listening.

    I'm interested in HDR10+ to DV, which I already use on AM6B+ but I have very few HDR10+ only videos.

  • Still getting a dropped frame about every second w/FEL rips w/R0.2.1a-opt1. Didn't test MEL.

    N150 has solid horsepower though to play things most Amlogic boxes struggle with, like a 35Mbps 4:2:2 MPEG2 C-Band capture I have, and a 8K/24p AV1 HDR re-encode sample of 'Top Gun: Maverick'. It has has no trouble playing an 8K SDR 60p clip downloaded off YouTube.

  • Still getting a dropped frame about every second w/FEL rips w/R0.2.1a-opt1. Didn't test MEL.

    N150 has solid horsepower though to play things most Amlogic boxes struggle with, like a 35Mbps 4:2:2 MPEG2 C-Band capture I have, and a 8K/24p AV1 HDR re-encode sample of 'Top Gun: Maverick'. It has has no trouble playing an 8K SDR 60p clip downloaded off YouTube.

    Can you please share the log? did you try to be on ethernet?

    I started looking into the logs of w46n3r who's also getting frame drops every second on a FEL playback with an N100. I don't think it's coming from a saturated GPU, but I suspect the network connection and SMB. I'm going to push a release with slightly more detailed logs to have a better understanding.