Listen to 5555 UDP and create a FIFO for visualization to work.

Fixes #1

.ncmpcpp/config

@@ -0,0 +1,6 @@
+audio_output {
+    type                    "fifo"
+    name                    "my_fifo"
+    path                    "/tmp/mopidy.fifo"
+    format                  "44100:16:2"
+}

Dockerfile

@@ -4,7 +4,8 @@ MAINTAINER Werner Beroux <werner@beroux.com>
 
 # http://ncmpcpp.rybczak.net/download.php#debian
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
-    ncmpcpp
+    ncmpcpp \
+    netcat-traditional
 
 # Clean-up to save some space
 RUN apt-get clean
@@ -13,6 +14,11 @@ RUN rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 # Create a random UID to avoid running as root.
 RUN useradd --uid 71723 -m ncmpcpp
 
+ADD ncmpcpp.sh /ncmpcpp.sh
+RUN chmod o+rx /ncmpcpp.sh
+
+ADD .ncmpcpp/config /home/ncmpcpp/.ncmpcpp/config
+
 USER ncmpcpp
 
-ENTRYPOINT ["ncmpcpp"]
+ENTRYPOINT ["/ncmpcpp.sh"]

ncmpcpp.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+
+udp_fifo() {
+  # Start listening to UDP on port 5555 and create a FIFO queue out of it,
+  # used for visualization. See https://github.com/mopidy/mopidy/issues/775
+  mkfifo /tmp/mopidy.fifo
+  while :
+  do
+    nc -kluw 1 0.0.0.0 -p 5555 >/tmp/mopidy.fifo 2>/dev/null
+    sleep 3
+  done
+}
+
+udp_fifo &
+
+# Start actual ncmpcpp
+exec ncmpcpp $*