BD+ decoding library does not work

[jluttine]

Describe the bug

Commercial movie blu-ray disc doesn't play on VLC. I have previously watched it successfully (maybe not under NixOS though) and I haven't used other commercial blu-ray discs after that.

To Reproduce Steps to reproduce the behavior:

1. Enable bdplus and AACS by adding to configuration.nix:

   nixpkgs.overlays = [
     (
       self: super: {
         libbluray = super.libbluray.override {
           withAACS = true;
           withBDplus = true;
         };
       }
     )
   ];
   environment.systemPackages = with pkgs; [
     vlc
   ];

2. Run sudo nixos-rebuild boot and reboot.
3. Put the blu-ray disc to the disc drive and open VLC. The disc is mounted and I can see the disc name on the left panel. Click Discs and double-click on the disc name to play.

An error pop-up appears:

Blu-ray error:
Your system BD+ decoding library does not work. Missing configuration?
Your input can't be opened:
VLC is unable to open the MRL 'bluray:///dev/sr0'. Check the log for details.

Looking at the console, I can see a bit more details:

$ vlc
VLC media player 3.0.8 Vetinari (revision 3.0.8-0-gf350b6b5a7)
[000000000187d5d0] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
[00000000018805b0] main playlist: playlist is empty
aacs.c:170: ignoring empty drl
bdplus_config.c:255: VM configuration not found
bdplus.c:240: bdplus_init() failed! (0x1919350)
dec.c:223: bdplus_init() failed
bdj.c:746: BD-J check: Failed to load JVM library
disc.c:424: error opening file CERTIFICATE/id.bdmv
disc.c:424: error opening file CERTIFICATE/BACKUP/id.bdmv
bdj.c:746: BD-J check: Failed to load JVM library

Expected behavior

I expected the blu-ray movie to play successfully.

Additional context

The disc is at least 5 years old (movie from 1988, disc copyright info says 2009), so it's not a very recent disc. Indeed, I have watched it previously with VLC. I think it has been even NixOS when I've been testing this configuration when I first wrote it maybe 1-2 years back, but I'm not sure.

Metadata

$ nix run nixpkgs.nix-info -c nix-info -m
 - system: `"x86_64-linux"`
 - host os: `Linux 4.19.87, NixOS, 20.03.git.ef4ce9e (Markhor)`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.3.1`
 - nixpkgs: `/etc/nixpkgs`

Maintainer information:

# a list of nixpkgs attributes affected by the problem
attribute:
# a list of nixos modules affected by the problem
module:

[jluttine]

One other disc played fine, showing only the following errors in the console:

$ vlc
VLC media player 3.0.8 Vetinari (revision 3.0.8-0-gf350b6b5a7)
[00000000015bc5d0] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
[00000000015bf5b0] main playlist: playlist is empty
bdj.c:746: BD-J check: Failed to load JVM library
bdj.c:746: BD-J check: Failed to load JVM library

And opening a pop-up window saying that VLC cannot show the menu because of missing Java. But the movie played fine anyway.

[stale[bot]]

Thank you for your contributions.

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[jluttine]

Still important to me.

[rjpcasalino]

@jluttine ever figure this one out? I have some discs that do the same thing, but curious if you found out two years later? Might want to close this otherwise

[asininemonkey]

Still an issue using the latest 23.11 beta and the following configuration:

{ config, pkgs, ... }:

let
  libbluray = pkgs.libbluray.override {
    withAACS = true;
    withBDplus = true;
    withJava = true;
  };

  vlc = pkgs.vlc.override { inherit libbluray; };
in

{ environment.systemPackages = [ vlc ] }

I get the following similar errors:

bdj.c:795: BD-J check: Failed to load JVM library
bdj.c:795: BD-J check: Failed to load JVM library
[00007face4001190] libbluray demux: First play: 1, Top menu: 0
HDMV Titles: 0, BD-J Titles: 4, Other: 4
[00007face4001190] libbluray demux error: BD-J menus not supported. Playing without menus. BD-J support: 1, JVM found: 0, JVM usable: 0

[langfingaz]

In addition to AACS and BD+ you might need some databases. One can find these on the Internet. Here is an example script: https://github.com/puppylinux-woof-CE/woof-CE/blob/849a9faa7ea8cac74e04d04e4f99f4425652c26b/woof-code/rootfs-skeleton/usr/local/bin/bdplayback_aacs

[alisonjenkins]

In addition to AACS and BD+ you might need some databases. One can find these on the Internet. Here is an example script: https://github.com/puppylinux-woof-CE/woof-CE/blob/849a9faa7ea8cac74e04d04e4f99f4425652c26b/woof-code/rootfs-skeleton/usr/local/bin/bdplayback_aacs

Right so I just figured out what my problem was thanks to looking at the script. It turns out that the capitalization of the keydb matters (makes sense due to case sensitive file names on Linux).

The file has to be called ~/.config/aacs/KEYDB.cfg or else it will not work (I was previously trying with ~/.config/aacs/KEYDB.cfg.