{"id":1327,"date":"2012-01-16T22:52:24","date_gmt":"2012-01-16T20:52:24","guid":{"rendered":"http:\/\/www.void.gr\/kargig\/blog\/?p=1327"},"modified":"2012-01-16T22:52:24","modified_gmt":"2012-01-16T20:52:24","slug":"music-player-daemon-on-os-x","status":"publish","type":"post","link":"https:\/\/www.void.gr\/kargig\/blog\/2012\/01\/16\/music-player-daemon-on-os-x\/","title":{"rendered":"Music Player Daemon on OS X"},"content":{"rendered":"

I use a Mac Mini with OS X 10.5.8 as a media center connected to my TV and I wanted to install Music Player Daemon<\/a> on it so I could control the music remotely from my laptop or phone. I mostly followed the OS X guide from MPD’s wiki<\/a> to do it but I ran into some problems while trying to daemonize mpd.<\/p>\n

I got the following error while running mpd without –no-daemon<\/em>:<\/p>\n

The process has forked and you cannot use this CoreFoundation functionality safely. You MUST exec().
\nBreak on __THE_PROCESS_HAS_FORKED_AND_YOU_CANNOT_USE_THIS_COREFOUNDATION_FUNCTIONALITY___YOU_MUST_EXEC__() to debug.<\/p><\/blockquote>\n

When I ran mpd –no-daemon<\/strong> everything was fine though. So in order to “solve” this problem I’ve changed the plist file to include a screen<\/a> invocation.<\/p>\n

My mpd.plist looks like that now:
\n

<?xml version="1.0" encoding="UTF-8"?>\n<!DOCTYPE plist PUBLIC "-\/\/Apple Computer\/\/DTD PLIST 1.0\/\/EN" "http:\/\/www.apple.com\/DTDs\/PropertyList-1.0.dtd">\n<plist version="1.0">\n    <dict>\n    <key>Label<\/key>\n    <string>mpd<\/string>\n    <key>ProgramArguments<\/key>\n    <array>\n        <string>\/opt\/local\/bin\/daemondo<\/string>\n        <string>--label=mpd<\/string>\n        <string>--start-cmd<\/string>\n        <string>screen<\/string> <!-- path to screen -->\n        <string>-dmS<\/string>\n        <string>mpd<\/string>\n        <string>\/opt\/local\/bin\/mpd<\/string> <!-- path to MPD -->\n        <string>-v<\/string>\n        <string>--no-daemon<\/string>\n        <string>\/Users\/kargig\/.mpd\/mpd.conf<\/string> <!-- path to MPD config -->\n        <string>;<\/string>\n        <string>--stop-cmd<\/string>\n        <string>\/opt\/local\/bin\/mpd<\/string> <!-- path to MPD, again -->\n        <string>--kill<\/string>\n        <string>\/Users\/kargig\/.mpd\/mpd.conf<\/string> <!-- path to MPD config, again -->\n        <string>;<\/string>\n    <\/array>\n    <key>RunAtLoad<\/key>\n    <true\/>\n    <key>Disabled<\/key>\n    <false\/>\n    <\/dict>\n<\/plist>\n<\/code2><\/pre><\/p>\n
So launchctl<\/em> calls daemondo<\/em> which calls screen<\/em> which runs mpd –no-daemon<\/em>, so mpd doesn’t crash.<\/p>\n
I use mpdscribble<\/a> for scrobbling my music to last.fm<\/a>. Clients-wise, I use Theremin<\/a> on OS X, Gnome Music Player Client\/gmpc<\/a> on Debian Linux and MPDroid<\/a> on Android. And all those connections over IPv6 of course, over my LAN’s Unique Local Addresses<\/a> to be exact, mpd and all clients listed above work fine with IPv6.<\/p>\n
 # lsof -n -i | grep ESTABLISHED | grep 6600\nmpd       43025         kargig   12u  IPv6 0x49c719c      0t0    TCP [fdbf:aaaa:aab0:447d:216:XXff:feaa:11XX]:6600->[fdbf:aaaa:aab0:447d:222:XXff:fe1e:d8XX]:48703 (ESTABLISHED)\nmpd       43025         kargig   15u  IPv6 0x3127cd4      0t0    TCP [fdbf:aaaa:aab0:447d:216:XXff:feaa:11XX]:6600->[fdbf:aaaa:aab0:447d:fadb:XXff:fe4f:aXX]:51113 (ESTABLISHED)\n<\/code2><\/pre><\/p>\n
Apart from MPD’s wiki there’s another nice blog post you can read to help you install mpd on OS X, Integrating MPD with OS X<\/a>.
\nFor general reference on setting up mpd, Archilinux has a fine wiki entry<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
I use a Mac Mini with OS X 10.5.8 as a media center connected to my TV and I wanted to install Music Player Daemon on it so I could control the music remotely from my laptop or phone. I mostly followed the OS X guide from MPD’s wiki to do it but I ran […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ep_exclude_from_search":false,"footnotes":""},"categories":[414,3,13],"tags":[33,441,301,445,595,163,438,440,443,444,439,437,446,442,448,447],"class_list":["post-1327","post","type-post","status-publish","format-standard","hentry","category-ipv6-networking","category-linux","category-macosx","tag-debian","tag-gmpc","tag-ipv6","tag-last-fm","tag-linux","tag-mac","tag-mac-mini","tag-mpd","tag-mpdroid","tag-mpdscribble","tag-music-player-daemon","tag-os-x","tag-scrobble","tag-theremin","tag-ula","tag-unique-local-address"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t