сб, 3 июн. 2023 г., 03:04 Andrew Randrianasulu <randrianas...@gmail.com>:
> https://forum.kodi.tv/showthread.php?tid=371952&page=2 > > ==== > > * <https://forum.kodi.tv/showthread.php?tid=371952&pid=3139871#pid3139871>* > 2023-02-12, 07:24 > Is our goal to get HDR passthrough to work to an HDR capable display, or > to just get HDR videos to display without being washed out? If it's the > latter, turn on tone mapping > <https://kodi.wiki/view/Video_playback#:~:text=would%20disturb%20AR%29.-,Tone%20mapping,-The%20algorithm%20method> > in > the video settings for the HDR video. Kodi 20 has a few different tone > mapping options. Hable is pretty good. > > If you want HDR passthrough, you'll need to use the GBM backend of Kodi > with GLES. The GL backend does not have the code to turn on HDR > passthrough, only GLES does. The Xorg and Wayland backends do not support > HDR passthrough. Xorg has no HDR support, and Wayland's is in progress and > incomplete (I'm not talking about Kodi, I'm talking about in general.) > > To get the GLES backend for kodi GBM, you'll have to compile it yourself > <https://github.com/xbmc/xbmc/blob/Nexus/docs/README.Ubuntu.md> as the > PPA version uses the GL backend. You will have to compile it with > the -DGBM_RENDER_SYSTEM=gles option. Then you'll have to run Kodi from a > regular text tty, and not X11. Switch to a tty with ctrl-alt-F2, log in, > and run kodi --windowing=gbm. > > ==== > > I looked at Arch package and it uses gl, not gles! > https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=kodi-git https://aur.archlinux.org/packages/kodi-git In theory, you can download this folder ("download snapshot" link in web gui), unpack it, edit PKGBUILD for gles render system, add -gles to pkg name (so it will not be confused with regular kodi), and run makepkg from inside this directory! https://itsfoss.com/create-pkgbuild/ > Also, bt2020 might be broken. Dolby vision not supported... > > https://github.com/xbmc/xbmc/pull/21845 > > merged in late april ...2023. > > Might not work on amd :( only on intel GPU. > > https://github.com/xbmc/xbmc/issues/22360 > > ==== > > I've noticed that in the current libreelec nightlies that if you start a > HDR file with an AMD APU / GPU that it will start playing but not in the > correct colourspace. It will play in SDR709. You then have to just return > to the Kodi menu while playing and go back to Fullscreen and the output > will then be correct at BT2020. > > I've confirmed this issue on the AMD 5600G and the Radeon 6400 series. > > This does not occur using my 12th gen Intel NUC. I believe it might have > something to do with this. > > > ==== end of quote ==== >
-- Cin mailing list Cin@lists.cinelerra-gg.org https://lists.cinelerra-gg.org/mailman/listinfo/cin
