servo: switch minidlna -> gerbera

hosts/by-name/servo/services/default.nix

@@ -8,6 +8,7 @@
     ./freshrss.nix
     ./export
     ./hickory-dns.nix
+    ./gerbera.nix
     ./gitea.nix
     ./goaccess.nix
     ./ipfs.nix

hosts/by-name/servo/services/gerbera.nix

@@ -0,0 +1,37 @@
+# gerbera UPNP/media server
+# accessible from TVs on the LAN
+# unauthenticated admin and playback UI at http://servo:49152/
+#
+# supposedly does transcoding, but i poked at it for 10 minutes and couldn't get that working
+#
+# compatibility:
+# - LG TV: music: all working
+# - LG TV: videos: mixed
+{ ... }:
+{
+  sane.ports.ports."1900" = {
+    protocol = [ "udp" ];
+    visibleTo.lan = true;
+    description = "colin-upnp-for-gerbera";
+  };
+  sane.ports.ports."49152" = {
+    protocol = [ "tcp" "udp" ];  # TODO: is udp required?
+    visibleTo.lan = true;
+    description = "colin-gerbera-http";
+  };
+
+  sane.persist.sys.byStore.plaintext = [
+    # persist the index database, since it takes a good 30 minutes to scan the media collection
+    { user = "mediatomb"; group = "mediatomb"; mode = "0700"; path = "/var/lib/gerbera"; method = "bind"; }
+  ];
+
+  services.mediatomb.enable = true;
+  services.mediatomb.serverName = "servo";
+  services.mediatomb.transcoding = true;
+  services.mediatomb.mediaDirectories = [
+    { path = "/var/media/Music"; recursive = true; hidden-files = false; }
+    { path = "/var/media/Videos/Film"; recursive = true; hidden-files = false; }
+    { path = "/var/media/Videos/Shows"; recursive = true; hidden-files = false; }
+  ];
+  users.users.mediatomb.extraGroups = [ "media" ];
+}

hosts/by-name/servo/services/minidlna.nix

@@ -8,7 +8,8 @@
 # compatibility:
 # - LG TV: music: all working
 # - LG TV: videos: mixed. i can't see the pattern; HEVC works; H.264 sometimes works.
-{ ... }:
+{ lib, ... }:
+lib.mkIf false  #< XXX(2024-11-17): WORKS, but i'm trying gerbera instead for hopefully better transcoding
 {
   sane.ports.ports."1900" = {
     protocol = [ "udp" ];

hosts/common/ids.nix

@@ -6,6 +6,7 @@
 {
   # partially supported in nixpkgs  <repo:nixos/nixpkgs:nixos/modules/misc/ids.nix>
   sane.ids.networkmanager.uid = 57;  #< nixpkgs unofficially reserves this, to match networkmanager's gid
+  sane.ids.mediatomb.uid = 187;  # <repo:nixos/nixpkgs:nixos/modules/misc/ids.nix>
 
   # legacy servo users, some are inconvenient to migrate
   sane.ids.dhcpcd.gid = 991;