#!/bin/sh ####################### # # Simple MP3 Jukebox # KAWAMATA, Yoshihiro # kaw@on.rim.or.jp # # $Id: player.sh,v 1.9 2005/08/08 13:24:29 kaw Exp $ # ####################### #===== # utility functions / routines #===== # trap for ^C # trap 'terminate "Aborted by user" ; exit' 2 # check flags, # fetch a file, # play it # # Usage: play_one_action { local_file | URL } # play_one_action () { [ $# -eq 0 ] && return # Controls # if [ -r ctrl/halt ]; then rm -f ctrl/halt terminate "Halting..." /sbin/shutdown -hp now sleep 86400 elif [ -r ctrl/reboot ]; then rm -f ctrl/reboot terminate "Rebooting..." /sbin/shutdown -r now sleep 86400 elif [ -r ctrl/restart ]; then rm -f ctrl/restart terminate "Restarting script..." exec $progfile elif [ -r ctrl/exit ]; then rm -f ctrl/exit terminate "Exiting..." exit fi # clean non-MP3 file and empty directories under spool # if [ -r ctrl/clean ]; then rm -f ctrl/clean echo "Clearning dirs..." find $src $dest oneshot oneshot_finished \( -type f -o -type l \) \! \( -iname '*.mp3' -o -iname '*.url' \) -print0 | xargs -0 rm -f for d in $src $dest oneshot oneshot_finished; do (cd $d && find . -type d -print | sort -r | xargs rmdir >/dev/null 2>&1) done fi # check if cache exceeds limit # if [ -r ctrl/checkcache ]; then rm -f ctrl/checkcache echo "Clearning cache dirs..." thresh=85 durate=`df cache | tail -1 | awk '{ print 0+$5 }'` if [ $thresh -lt $durate ]; then nfiles=`find cache -type f -print | wc -l` if [ $nfiles -eq 1 ]; then rm -f `find cache -type f -print` elif [ 1 -lt $nfiles ]; then rmfiles=`expr $nfiles / 2` ls -1t `find cache -type f -print` | tail -n $rmfiles | xargs rm -f fi fi fi # pause playing # if [ -r ctrl/pause ]; then echo "Pausing..." while [ -r ctrl/pause ]; do sleep 1 done fi # play MP3 file # # ... invoke MP3 player # case "$1" in https://*.mp3|http://*.mp3|ftp://*.mp3) echo "$1" > ctrl/playing/contents if [ -r ctrl/usecache ]; then md5=`echo -n "$1" | md5` if [ -r cache/$md5.mp3 ]; then # play cache file rather than network # mpg123 -v $opts cache/$md5.mp3 2>&1 | tr \\015 \\012 | tail -n 2 > ctrl/playing/endstatus else # tee is for both to save MP3 to cache # and to buffer data in the pipeline # ftp -o - "$1" | tee cache/$md5.mp3 | mpg123 -v $opts - 2>&1 | tr \\015 \\012 | tail -n 5 > ctrl/playing/endstatus # abnormal end status - remove cache # [ -z cache/$md5.mp3 ] && rm -f cache/$md5.mp3 fi else # tee is simply for buffer # ftp -o - "$1" | tee | mpg123 -v $opts - 2>&1 | tr \\015 \\012 | tail -n 5 > ctrl/playing/endstatus fi ;; *.[Mm][Pp]3) if [ -r "$1" ]; then echo "$1" > ctrl/playing/contents mpg123 -v $opts "$1" 2>&1 | tr \\015 \\012 | tail -n 2 > ctrl/playing/endstatus else echo "Cannot find $1" fi ;; esac echo "======END STATUS======" cat ctrl/playing/endstatus echo "\n======================" } # move played file to another directory. # directory hierarchy preserved. # # Usage: movefile srcpath desttop # movefile () { [ $# -lt 2 ] && return [ -r $1 ] || return destdir=$2/${1#*/} destdir=${destdir%[^/]*} if [ -d $destdir ]; then mv $1 $destdir else mkdir -p $destdir && mv $1 $destdir fi } # terminate process # terminate () { [ $# -ne 0 ] && echo "$@" rm -rf ctrl/playing [ -r ctrl/finish ] && . ctrl/finish kill -TERM $fwatchpid } #===== # Running code from here #===== # Base and current directory is where script placed. # progfile=$0 cd `dirname $progfile` || exit 1 # check if another player running # if mkdir ctrl/playing; then date > ctrl/playing/started chmod 0755 ctrl/playing else echo "Another player running" exit 1 fi # remove stale files # rm -f ctrl/exit ctrl/reboot ctrl/halt ctrl/mute ctrl/loud # user initialization # [ -r ctrl/init ] && . ctrl/init # invoke event handler # fwatch ctrl ./asyncevent.sh & fwatchpid=$! #===== # main loop ... play MP3 and its control #===== while :; do # parameters to MP3 player # unset opts [ -r ctrl/mpg123opts ] && opts=`cat ctrl/mpg123opts` # We have two spool directories for infinite loop # ... spool0 and spool1. # # set direction of file movement # between two spools # when every MP3 file played # if [ -r ctrl/reverse ]; then src=spool1 dest=spool0 else src=spool0 dest=spool1 fi # playlist is symlink to spool for playing. # rm -f playlist ln -s $src playlist # for every MP3 files # control and/or playing # # xNOPLAY is a sentinel to run inner loop # for playfile in xNOPLAY `find $src \( -type f -o -type l \) \( -iname '*.mp3' -o -iname '*.url' \) | sort`; do # retrieve resource location # case "$playfile" in *.[Uu][Rr][Ll]) mp3reslist=`cat $playfile` ;; *.[Mm][Pp]3|xNOPLAY) mp3reslist=$playfile ;; esac # for every MP3 resource ... # for mp3res in $mp3reslist; do # perform one shot playlist # while :; do for oneshot in xNOPLAY `find oneshot \( -type f -o -type l \) \( -iname '*.mp3' -o -iname '*.url' \) | sort`; do # retrieve resource location # case "$oneshot" in *.[Uu][Rr][Ll]) oneshot_mp3res=`cat $oneshot` ;; *.[Mm][Pp]3|xNOPLAY) oneshot_mp3res=$oneshot ;; esac for os_mp3 in $oneshot_mp3res; do # check if resource file removed # if [ -r $oneshot ]; then play_one_action $os_mp3 fi # rescan all contents # if [ -r ctrl/rescan ]; then echo "Rescanning playlist..." break 5 fi done movefile $oneshot oneshot_finished done [ X"$oneshot" = XxNOPLAY ] && break done play_one_action $mp3res # restart at current spool # if [ -r ctrl/rescan ]; then echo "Rescanning playlist..." break 2 fi done # move played file to the other spool # movefile $playfile $dest done # pause when no MP3 files in spools # if [ X"$playfile$oneshot" = XxNOPLAYxNOPLAY ]; then noplay=Z$noplay echo "No file to play : $noplay" if [ $noplay = ZZ ]; then echo "Now sleeping for 60 secs..." sleep 60 noplay="" fi else noplay="" fi # role change of spools # (not changing when rescan) # if [ -r ctrl/rescan ]; then rm -f ctrl/rescan else if [ -r ctrl/reverse ]; then rm -f ctrl/reverse else touch ctrl/reverse fi fi done