Control audacious over ssh

Kilépes egyelőre csak Ctrl-C-vel.

#!/bin/bash

# simple script to control audacious2 over ssh (X forwarding needed)
# author: pgee

#display where audacious2 is running
export DISPLAY=:0

#default settings
style=0
display_next=0
refresh_time=1
new_pos=-1
pos=0
state_refresh=5
i=0
loved_tracks_filename='/home/pgee/loved_tracks.txt'

#generate song info from params
gen_info () {
    if [ $1 -eq 0 ]; then
        info="$2 - $3"
    elif [ $1 -eq 1 ]; then
        info="$2 - $4 - $3"
    elif [ $1 -eq 2 ]; then
        info="$2 - $3 [> $4 <]"
    fi
}

#main loop
while true 
do
    new_pos=`audtool2 playlist-position`
    current=`audtool2 current-song-output-length`

    #collect data if song changed   
    if [ $pos -ne $new_pos ]; then
        artist=`audtool2 current-song-tuple-data artist`
        title=`audtool2 current-song-tuple-data title`
        album=`audtool2 current-song-tuple-data album`

        length=`audtool2 current-song-length`
        gen_info $style "$artist" "$title" "$album"
        song_info=$info

        current_fname=`audtool2 current-song-filename`
        loved=`grep -c "$current_fname" $loved_tracks_filename`
    fi

    # state update in every $refresh * $state_refresh sec
    if [ $i -eq 0 ]; then
        state=`audtool2 playback-status`
        shuffle=`audtool2 playlist-shuffle-status`
        volume=`audtool2 get-volume`
        let "i++"
    else
        let "i++"
        let "i%=$state_refresh"
    fi

    if [ $display_next -gt 0 -a $new_pos -ne $pos ]; then
        let "next_pos=$new_pos + 1"
        next_artist=`audtool2 playlist-tuple-data artist $next_pos`
        next_title=`audtool2 playlist-tuple-data title $next_pos`
        next_album=`audtool2 playlist-tuple-data album $next_pos`

        gen_info $style "$next_artist" "$next_title" "$next_album"

        next_info="[next song: $info]"
    fi
    let "pos=$new_pos"

    clear
    #print song details
    if [ $display_next -lt 2 ]; then
        echo "$song_info"
    elif [ $display_next -eq 2 ]; then
        echo "$song_info $next_info"
    elif [ $display_next -eq 3 ]; then
        echo "$song_info"
        echo "$next_info"
    fi
    #print player details
    echo "$current ($length) [$state] [vol: $volume] [loved: $loved] [shuffle: $shuffle] [refresh: $refresh_time] [pos: $pos]"
    #print next info if needed here
    if [ $display_next -eq 1 ]; then
        echo "$next_info"
    fi

    #get command
    read -s -t $refresh_time -n 1 cmd;
    if [ "$cmd" = "s" ]; then
        #play pause
        let "i=0"
        audtool2 playback-playpause
    elif [ "$cmd" = "n" ]; then
        #next track
        let "i=0"
        audtool2 playlist-advance
    elif [ "$cmd" = "p" ]; then
        #previous track
        let "i=0"
        audtool2 playlist-reverse
    elif [ "$cmd" = "q" ]; then
        #volume down
        let "i=0"
        let "volume-=3"
        if [ "$volume" -lt 0 ]; then
            volume=0
        fi
        audtool2 set-volume "$volume"
    elif [ "$cmd" = "w" ]; then
        #volume up
        let "i=0"
        let "volume+=3"
        if [ "$volume" -gt 100 ]; then
            volume=100
        fi
        audtool2 set-volume "$volume"
    elif [ "$cmd" = "r" ]; then
        #toggle refresh_time
        let "refresh_time%=5";
        let "refresh_time++";
    elif [ "$cmd" = "l" ]; then
        if [ "$loved" -eq 0 ]; then
            echo "$current_fname" > $loved_tracks_filename;
        else
            grep -v "$current_fname" $loved_tracks_filename > $loved_tracks_filename;
        fi
        loved=`grep -c "$current_fname" $loved_tracks_filename`
    elif [ "$cmd" = "v" ]; then
        #toggle printing next song
        pos=-1
        let "display_next++";
        let "display_next%=4";
    elif [ "$cmd" = "d" ]; then
        #change style
        let "style++";
        let "style%=3";
        gen_info $style "$artist" "$title" "$album"
        song_info=$info
    fi
done;