gpac's MP4Box runtime error

[ppom0]

Describe the bug MP4Box display this error whenever it's launched :

[Core] default modules not found
[core] Cannot create config file GPAC.cfg in /home/ao/.gpac directory
Fatal error: failed to initialize GPAC global configuration

It doesn't seem to be a filesystem permission issue, because I can create this file and directory myself. Deleting them doesn't solve the issue.

To Reproduce Steps to reproduce the behavior:

1. get gpac nix-shell -p gpac
2. run MP4Box or MP4Box -info $MP4VIDEO

Expected behavior MP4Box should find this default modules it is complaining about!

Additional context I tried using MP4Box on 2 computers following the 20.09 channel, and ran across this same issue.

Notify maintainers @bluescreen303 @mgdelacroix @FRidh (I saw you updated the gpac lately)

Metadata

• system: "x86_64-linux"
• host os: Linux 5.4.80, NixOS, 20.09.2122.2fbcd0b9df9 (Nightingale)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.3.9
• channels(root): "nixos-20.09.2238.b94726217f7"
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos &
• system: "x86_64-linux"
• host os: Linux 5.4.81, NixOS, 20.09.2238.b94726217f7 (Nightingale)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.3.9
• channels(root): "nixos-20.09.2238.b94726217f7"
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos

Maintainer information:

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

And thanks for this awesome nixpkgs by the way! It's been 2 months I intensively play with NixOS and it's my first issue so far.

[tuxinaut]

I run into the same issue, with the gpac version (1.0.1) from unstable the issue does not show up!

[stale[bot]]

I marked this as stale due to inactivity. → More info