From 5676fd3ac1875559d99d7d60d75680097f8b7041 Mon Sep 17 00:00:00 2001
From: Daniel Langbein <daniel@systemli.org>
Date: Sun, 7 Jan 2024 22:35:38 +0100
Subject: [PATCH] dvd and blu-ray playback and backup

---
 hosts/yodaTab/configuration.nix |  1 +
 hosts/yodaTux/configuration.nix |  1 +
 modules/gnome-base.nix          |  1 +
 modules/vlc-dvd-blu-ray.nix     | 53 +++++++++++++++++++++++++++++++++
 4 files changed, 56 insertions(+)
 create mode 100644 modules/vlc-dvd-blu-ray.nix

diff --git a/hosts/yodaTab/configuration.nix b/hosts/yodaTab/configuration.nix
index a3a9c40..0402856 100644
--- a/hosts/yodaTab/configuration.nix
+++ b/hosts/yodaTab/configuration.nix
@@ -31,6 +31,7 @@
       ../../modules/syncthing.nix
       ../../modules/signal-desktop.nix
       ../../modules/obsidian.nix
+      ../../modules/vlc-dvd-blu-ray.nix
       ../../modules/firefox.nix
       ../../modules/thunderbird.nix
       ../../modules/tor-browser.nix
diff --git a/hosts/yodaTux/configuration.nix b/hosts/yodaTux/configuration.nix
index 2d33b7f..8a408af 100644
--- a/hosts/yodaTux/configuration.nix
+++ b/hosts/yodaTux/configuration.nix
@@ -32,6 +32,7 @@
       ../../modules/syncthing.nix
       ../../modules/signal-desktop.nix
       ../../modules/obsidian.nix
+      ../../modules/vlc-dvd-blu-ray.nix
       ../../modules/firefox.nix
       ../../modules/thunderbird.nix
       ../../modules/tor-browser.nix
diff --git a/modules/gnome-base.nix b/modules/gnome-base.nix
index c40f449..d905aa2 100644
--- a/modules/gnome-base.nix
+++ b/modules/gnome-base.nix
@@ -17,6 +17,7 @@
     #gnome.gnome-contacts # Address book
     gnome.gnome-font-viewer # View and install fonts
     gnome.gnome-system-monitor # Resource monitor / task manager
+    gnome.totem # Video player
   ]);
 
   # GNOME Calendar comes preinstalled. https://nixos.wiki/wiki/GNOME/Calendar
diff --git a/modules/vlc-dvd-blu-ray.nix b/modules/vlc-dvd-blu-ray.nix
new file mode 100644
index 0000000..d8f159e
--- /dev/null
+++ b/modules/vlc-dvd-blu-ray.nix
@@ -0,0 +1,53 @@
+# VLC Blu-ray playback with NixOS
+#   Requires libaacs and libbdplus
+#   Solution: https://github.com/NixOS/nixpkgs/issues/63641#issuecomment-505039827
+
+# We do also need some databases ...
+# Here is a script describing the necessary steps.
+# Source: https://github.com/puppylinux-woof-CE/woof-CE/blob/849a9faa7ea8cac74e04d04e4f99f4425652c26b/woof-code/rootfs-skeleton/usr/local/bin/bdplayback_aacs
+#
+#    # db for libaacs: http://www.videolan.org/developers/libaacs.html
+#    mkdir -p ~/.config/aacs
+#    (
+#    	cd ~/.config/aacs
+#    	wget http://www.labdv.com/aacs/KEYDB.cfg
+#    )
+#    
+#    # db for libbdplus: http://www.videolan.org/developers/libbdplus.html
+#    mkdir -p ~/.config/bdplus
+#    (
+#    	cd ~/.config
+#    	wget http://www.labdv.com/aacs/libbdplus/bdplus-vm0.bz2
+#    	tar -xvjf bdplus-vm0.bz2
+#    	rm bdplus-vm0.bz2
+#    )
+
+# More details on `libbluray`.
+# From the source code
+#   https://github.com/NixOS/nixpkgs/blob/2ab31359946cd78a509b61931cbf7de7beebdd6f/pkgs/development/libraries/libbluray/default.nix#L2C4-L6
+#   , withJava ? false, jdk, ant
+#   , withAACS ? false, libaacs
+#   , withBDplus ? false, libbdplus
+#   , withMetadata ? true, libxml2
+#   , withFonts ? true, freetype
+# we can read that Java, AACS and BD+ support can be enabled.
+
+# Back-up a personal DVD:
+#   dvdbackup -i /dev/sr0 --mirror --progress -o ~/Downloads/ && eject /dev/sr0
+
+{ config, pkgs, ... }:
+let
+  libbluray = pkgs.libbluray.override {
+    withAACS = true;
+    withBDplus = true;
+  };
+  vlc = pkgs.vlc.override { inherit libbluray; };
+in
+{
+  users.users.yoda = {
+    packages = [
+      vlc # Video (DVD, Blu-ray) and audio player
+      pkgs.dvdbackup # Create ackups of personal DVDs
+    ];
+  };
+}