icecast cannot find MPD mountpoint - icecast

Question

I have setup icecast 2 server and mpd too.
Both are working fine individually but icecast doesn't show the mpd in the mount list.
Here is my mpd.conf
# See: /usr/share/doc/mpd/mpdconf.example
user "ayush"
pid_file "~/.mpd/mpd.pid"
db_file "~/.mpd/mpd.db"
state_file "~/.mpd/mpdstate"
log_file "~/.mpd/mpd.log"
playlist_directory "~/.mpd/playlists"
music_directory "~/Music"
audio_output {
type "shout"
encoding "ogg"
name "stream"
host "localhost"
port "8000"
mount "/mpd.ogg"
bind_to_address "127.0.0.1"
# This is the source password in icecast.xml
password "pass"
# Set either quality or bit rate
# quality "5.0"
bitrate "128"
format "44100:16:2"
# Optional Parameters
user "source"
# description "here is my long description"
# genre "jazz"
} # end of audio_output
# Need this so that mpd still works if icecast is not running
audio_output {
type "alsa"
name "fake out"
driver "null"
}
Also here is the output of my netstat
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 315/sshd
tcp 0 0 0.0.0.0:17500 0.0.0.0:* LISTEN 651/dropbox
tcp 0 0 0.0.0.0:8000 0.0.0.0:* LISTEN 8006/icecast
tcp 0 0 0.0.0.0:16001 0.0.0.0:* LISTEN 1211/pulseaudio
tcp 0 0 0.0.0.0:57253 0.0.0.0:* LISTEN 1211/pulseaudio
tcp 0 0 0.0.0.0:60421 0.0.0.0:* LISTEN 1211/pulseaudio
tcp 0 0 0.0.0.0:4713 0.0.0.0:* LISTEN 1211/pulseaudio
tcp6 0 0 :::22 :::* LISTEN 315/sshd
tcp6 0 0 :::16001 :::* LISTEN 1211/pulseaudio
tcp6 0 0 :::36418 :::* LISTEN 1211/pulseaudio
tcp6 0 0 :::32899 :::* LISTEN 1211/pulseaudio
tcp6 0 0 :::6600 :::* LISTEN 8046/mpd
tcp6 0 0 :::4713 :::* LISTEN 1211/pulseaudio
My guess is that because mpd is not listening on ipv4 icecast is not able to see the mount point.
But I also don't understand why it doesn;t listen on ipv4 when I have explicitly used bind_to_address option.
Can someone please tell me how to make icecast see the mpd mountpoint.
Thanks

Answer 1

I was having the same issue and it seemed to stem from the setting bitrate "128" in mpd.conf. I was able to get the mountpoint to show up when I used quality "5.0".
I also tried bitrate "320" which did not work either, however I was able to see the mount with quality "10.0" as well. From this it seems that only the quality setting works.
I am not entirely sure, but I believe this stems from the way Vorbis is encoded. It seems like the encoders accept flags for quality in the form of -q {quality} where {quality} is any value from 0.0 to 10.0 (including factional values).
Sources:
https://en.wikipedia.org/wiki/Vorbis
http://linux.die.net/man/1/oggenc

Answer 2

I don't any problems connecting to icecast using the same settings, the only difference I see is the bind_to_address. This is used for connecting mpd clients if I'm not mistaken and not for the streaming server. It doesn't belong under audio_output.
Also, is there something in the MPD logs?