[x86-64][CroqueMr Builds] Dolby Vision w/FEL, HDR10+, and 3D

  • CroqueMr Here is the kodi.log of that test: Beta4 start, the MVC ISO, then the half-SBS clip. I removed the lines of my own add-ons and masked the LAN addresses. The "lost diff" lines appear during the MVC ISO.

    On 3D, everything I can check from the output is right: the projector detects frame packing (1920x2205 at 23.976) and side-by-side (1080p60), and geometry, depth, eye order and the authored subtitle depth on the MVC disc are correct. I haven't looked at your code, so I can only speak for the result. Top-and-bottom I didn't test with Beta4.

    Thank you I fixed it, and recompiled the build into the Beta4 release, the image changed.

    Log from when running Mission Impossible; Dead Reckoning 68,5GB.

    https://paste.libreelec.tv/subcalibre-charmaine.log

    Same as before, smooth, no framedrop, no issue, even with GUI


    thank you!

    would this mini pc be a good choice:

    GEEKOM Air12 Lite, Intel N100 4 Kerne, max. 3,4 GHz, 8 GB RAM, 256 GB SSD, HDMI + DP-Dual-Screen-Display
    or would 4GB of RAM be enough? or maybe 16GB be better ?

    Yeah a N100 is perfect and works great, 4gb of RAM is enough.

  • CroqueMr , here are the playback infos before and after the freeze and it's not really a freeze of the system because I can still popup the gui and choose the stop button. It's just doing "nothing" and a black screen forever.

    It works fine on my AM6B+ in DV so I don't think it's my file that is corrupted.

    BEFORE:


    AFTER:

    I tried the different DV modes, even DV to HDR10 (HDR10 conversion) and all the modes freeze. If I disable DV then it plays in HDR10 fine.

    Also, happy to report that the GUI is now fine, it's not cutted in the black bars anymore thanks to the L5 fix! Thanks to you and dangerouslaser for this!

    Edited once, last by Creator44 (October 18, 2026 at 10:27 PM).

  • CroqueMr , here's the new log for the DV Freeze.

    Thanks I will investigate on that, I think I’ll need to go through quite a few iterations with you. I’ll send you a pre-release build so you can test a few things. Now that the features are all laid out, I have time to take a detailed look at the support. There will be no more major releases, instead, there will be shorter iterations with minor fixes. I will push you a fix tentative tomorrow.


    Possibly also DMDreview. PM'd him to check here.

    I can not send PM in avsforum, but I sent him an email. I had already come across these videos before this project, he makes some really great stuff.

    Edited once, last by CroqueMr: Merged a post created by CroqueMr into this post. (October 18, 2026 at 10:29 PM).

  • I did a clean install of Beta4 but there still seems to be some issues. When I play the three "test" files, they still all seem to have the wrong aspect ratio. I am assuming they are 16:9? The FEL Test is weird: when it starts, all i get is a black screen. However, if I activate the OSD, the picure appears (red screen). Turn off the OSD and it goes back to a blank screen. It does come on by itself about halfway through.

    Also, I am using the Estuary Mod V2 skin and it blocks all access to the Enhanced player information. I just get the basic one. Thats probably a "me" problem!

    This is my hardware...

    https://www.notebookcheck.net/GK3V-A-mini-PC-with-a-2-5-inch-drive-slot-and-a-VGA-output.514581.0.html

    LG C9 TV

    Clean install, no add-ons or mods

  • Also, I am using the Estuary Mod V2 skin and it blocks all access to the Enhanced player information. I just get the basic one. Thats probably a "me" problem!

    Yep, some skins have incomplete implementation, so you don't see all options. Stay away from them, and use the default skin.

  • Very interessted to see how a small J4125 handle the DV playing. I think it will be ok for all standard native output but will strugle if you enable HDR Adaptative or any HDR<->DV conversion.

    Regarding your issue, it's strange, I see your player send a 4096x2180 signal, insteed of 3840*2180. I just pushed a debug version,

    This version integretate some fixes that I think will not be useful for your issue, but I adjusted the log to capture more information, could you send me back the log with de debug version installed? https://github.com/CroqueMr/libreelec-x86-DV/releases

    CroqueMr , here's the new log for the DV Freeze.

    Could you please try the beta4 debug version and send me back the log even if it fixed your issue?

    Releases · CroqueMr/libreelec-x86-DV
    LibreELEC x86_64 with Dolby Vision support for Intel and AMD iGPUs - CroqueMr/libreelec-x86-DV
    github.com
  • Okay, I installed the debug version and played the three test videos. Hope this is useful...

    I don't see any issue in the log, did you get a blackscreen with the same issues as before?

    Could you try to play your heaviest file in Master reference mode and Standard?

  • Hi CroqueMr,

    First of all, thank you again for your continued work on LibreELEC Dolby Vision. I really appreciate the time and effort you're putting into this project.

    I've been testing R1.0.0-Beta4-debug with the following setup:

    • Device: ASUS Mini PC
    • CPU: Intel Core i7-1360P
    • GPU: Intel Iris Xe

    I've noticed an issue with Dolby Vision Profile 7 FEL playback.

    Whenever I press O to display or cycle through the player information, frames start dropping. The more I press O, the higher the dropped-frame counter gets.

    I've reproduced this with:

    • Dolby Vision Profile 7 FEL MKV files.
    • Dolby Vision FEL Blu-ray ISO files.
    • FEL content running at 59.94/60fps.

    For example, while testing Gemini Man, the dropped-frame counter reached 48 in one screenshot and 151 in another.

    What's interesting is that HDR10 playback works smoothly on the same Intel hardware, even at 59.94/60fps. I tested Billy Lynn's Long Halftime Walk in HDR10, and it showed 0 dropped frames and only 1 skipped frame.

    I also tested Heretic in Dolby Vision Profile 7, and the player information confirmed:

    • FEL reconstructed: Full FEL
    • FEL upscaling: Reference GPU
    • Dolby Vision Master Reference
    • TV-Led Dolby Vision tunnel

    I've attached screenshots showing the difference between FEL and HDR10, along with Kodi log containing the relevant DVBridge and CB1 rendering diagnostics.

    I understand that the debug build may introduce additional playback stalls, so these results aren't intended as a performance benchmark. However, the difference between FEL and HDR10 when opening the player information overlay seems worth investigating.

    Could you please take a look when you have time? I'm wondering whether displaying the player information overlay adds extra rendering overhead during FEL playback on Intel GPUs.

    Thanks again for all your hard work. I really appreciate it.

  • Had a spare ssd so i installed Beta4 on my J5040 and tried Three Musketeers, here is a log:

    https://paste.libreelec.tv/anteroparietal-trina.log

    It's a very good news, a small J5040 is able to read without any drop a FEL7 Remux. Could you check if your CPU Can handle a 60fps movies or your profile 7 with FEL in Dolby vision Master reference mode and not Dolby Vision Standard?


    Thanks for the feedback, for the GUI that generate drops it's a known issue, many GPU can not handle FEL + GUI. In master reference mode I don't think I will be able to patch it completely. This mode is VERY restrictive, if any modification change the picture by one bit, even if it's invisible the mod is rejected. But I see one small issue, it may reduce the drops. I will push a debug2 later today.

  • I will receive a mini PC with an Ryzen 3 3200U (=R1505G) CPU. I plan to focus this platform on AMD, similarly to what I did with the N100 on the Intel side.

    The 3100U / R1505G is quite widespread, and here in Europe, you can find used mini PCs for under $100 with this CPU.


    N100, Avatar The Way of Water, Dolby Vision Master Reference.

    https://paste.libreelec.tv/whimsical-jerrica.log

    No drop perfect, but I am more interested in the J5040 :)

    I think my issue is something to do with this


    https://forum.kodi.tv/showthread.php?tid=366528&page=3

    Probably outside the scope of this project. Might try the CRU thing

    Yeah try this, but in your last log your issue seems fixed with the debug patches.

    Edited once, last by CroqueMr (October 19, 2026 at 2:59 PM).