l radio: add mp3 output

lass/2configs/radio.nix

@@ -144,6 +144,19 @@ in {
     extraConfig = ''
       log_level "default"
       auto_update "yes"
+      volume_normalization "yes"
+
+      audio_output {
+        type "httpd"
+        name "lassulus radio mp3"
+        encoder "lame" # optional
+        port "8002"
+        quality "5.0" # do not define if bitrate is defined
+        # bitrate "128" # do not define if quality is defined
+        format "44100:16:2"
+        always_on "yes" # prevent MPD from disconnecting all listeners when playback is stopped.
+        tags "yes" # httpd supports sending tags to listening streams.
+      }
 
       audio_output {
         type "httpd"
@@ -163,6 +176,7 @@ in {
     tables = {
       filter.INPUT.rules = [
         { predicate = "-p tcp --dport 8000"; target = "ACCEPT"; }
+        { predicate = "-p tcp --dport 8002"; target = "ACCEPT"; }
         { predicate = "-i retiolum -p tcp --dport 8001"; target = "ACCEPT"; }
       ];
     };