MPlayer is an extremely versatile media player, I've begun to use it for absolutely any media that I'm not already piping through mpd. One day while going through my XMonad config, I decided it'd be convenient to bind my media keys to control MPlayer. I already had them bound to control volume/mpd, but I figured Meta + key combinations could be the MPlayer equivalents.
A bit of googling later and I had the solution: a fifo!
Fifos (for file in file out) are simply a two way file on your system that can be used for communication; kind of a poor man's
socket. You can play with them like this to get the idea:
# in one terminal: mkfifo ./fifo tail -f ./fifo # and in some other terminal: echo some text > ./fifo
The MPlayer manpage states that it can read commands out of a fifo by using the input flag. Combine that with the fact that MPlayer will read any flags from
~/.mplayer/config and we're 90% there.
mkfifo ~/.mplayer_fifo vim ~/.mplayer/config
Add the following in that file:
input = file=/home/username/.mplayer_fifo
Now fire up a movie. Go to some other terminal and do the following:
echo pause > ~/.mplayer_fifo
If MPlayer didn't pause, double check the above. It works for me.
Now it's really up to you if you want to run these via a wrapper script, or send the commands directly from your keybind configuration. Here's an example wrapper script if you decide to go this way:
#!/bin/bash fifo="$HOME/.mplayer_fifo" command="$*" echo $command > "$fifo" &>/dev/null
Place it in your
chmod +x it, and bind some keys to
script 'pause', etc.
Personally, I put a simple function (of basically the above) in my
xmonad.hs, then call that from the keybinds. Here's the relevant section of my config:
myKeys = [ ... -- Mod+ to control MPlayer , ("M-<XF86AudioPlay>", mPlay "pause" ) -- play/pause mplayer , ("M-<XF86AudioStop>", mPlay "stop" ) -- stop mplayer , ("M-<XF86AudioPrev>", mPlay "seek -10") -- seek back 10 seconds , ("M-<XF86AudioNext>", mPlay "seek 10" ) -- seek forward 10 seconds , ... ] where mPlay s = spawn $ "echo " ++ s ++ " > $HOME/.mplayer_fifo"
I'll leave it up to you to figure out your WM's keybind configuration or use some generic tool like xbindkeys.