View difference between Paste ID: dfifNv3z and wPXZuPrU

 #!/bin/bash
-#Dependencies: usual gnu utils, ffmpeg or ffprobe
+#Dependencies: ffmpeg or ffprobe, standard gnu utils (including bc)
 #
-##june 07 2012 edited to remove unwanted \ in regex expression which ###prevented ogg files from being parsed.
+#april 21 2014 edited to also work with locales that
 #use , instead of .for decimal position (thanks to Tina Keil).
 #march 20 2013 edited to accommodate opus files and to fix error in fetching
 #durations, caused by changes in ffprobe.
 #june 07 2012 edited to remove unwanted \ in regex expression which
 #prevented ogg files from being parsed.
 #december 22 2015 edited to add support for relative paths, thanks to Dave.
 # january 9 2016 removed problemaatic relative paths function.
 
-\t-r  recurses through subdirectories and writes file names with
+#also work with locales that use , instead of .for decimal position.
 LC_NUMERIC=C LC_COLLATE=C
 
 function usage ()
 {
 	printf "\nUSAGE:
 \t$(basename "$0") [options] {-o out} <directory>\n
 OPTIONS:
 \t-D  Don't overwrite existing playlist (default is to replace)\n
 \t-s  Simple m3u8 playlist instead of extended m3u8\n
 \t-p  writes the file names in .m3u with full path\n\
 \t    (default is simple file name without path)\n
 \t-d  Set the recursion depth (default is 1)\n
 \t-r  Recurses through subdirectories and writes file names with
 \t    full path\n
 \t-c  Format playlist for Sansa Clip+ Internal Memory (implies -p)
 \t
-ffprobe -show_format "$f">"$DATA"
+\t-C  Format playlist for Sansa Clip+ MicroSDHC (implies -p)
 \t
 \t-H  Format playlist for iriver H10/100/300 series players (implies -p)
 \t    You MUST change the MicroSDHC card label and mount point in
 \t    the sed expressions to the ACTUAL MicroSDHC card label and
 \t    mount point on your OS.  The Clip internal storage and iRiver H
-SEC=$(printf %.2f\\n $(grep -m 1 -i -e "^duration" "$DATA" |\
+\t    values are quite generic but Clip external storage values could be
 \t    anything - user must check this.\n
 \t-o <output directory>  (default is target directory)\n
 \t$(basename "$0") finds the audio files in the directory, parses
 \tthe metadata, then writes an extended .m3u playlist\n
 \t$(basename "$0") understands the same files as  your
 \tinstalled version of ffmpeg.\n
 \tIf $(basename "$0") fails please check output directory exists
 \tand is writeable.\n\n"
 }
 
 #dump file data;grep metadata relevant to extm3u.
-while getopts 'o:pr' OPTION
+
 #track duration so all times are rounded UP to integer i.e. 38.00 secs
 #becomes 38 seconds but 38.10 secs or 38.95 seconds become 39 seconds.
 function getdata ()
 {
 ffprobe -v quiet -show_format -show_streams "$f">"$DATA"
 
 PERF=$(grep -m 1 -i tag:artist "$DATA" |\
 awk -F "=" '{$1="";$0=substr($0,2)}1' |cleantag)
 TIT=$(grep -m 1 -i tag:title "$DATA" |\
 awk -F "=" '{$1="";$0=substr($0,2)}1' |cleantag)
 SEC=$(printf %.2f\\n $(grep -m 1 -i -e "^duration=" "$DATA" |\
 awk -F "=" '{print $2}'))
 SEC=$(printf %0.f\\n $(echo "$SEC+0.5"|bc))
 }
 
 #remove problematic characters from metadata.
 function cleantag ()
 {
 	sed 's/[;]/-/g;s/[/]/-/g;s/[<]/-/g;s/[>]/-/g;s/[:]/-/g;s/[|]/-/g'
 }
 
 #user options
 while getopts 'CcDHo:prs' OPTION
 do
 	case $OPTION in
 	o)	oflag=1
 		oval=$OPTARG
 		;;
 	p)	pflag=1
 		;;
 	r)	rflag=1
 		pflag=1
 		;;
 	R)	rflag=1
 		relpathflag=1
 		;;
 	c)	cflag=1
 		;;
 	C)	Cflag=1
 		pflag=1
 		;;
 	H)	Hflag=1
 		pflag=1
 		;;
 	s)	sflag=1
 		;;
 	D)	Dflag=1
-#create/overwrite .m3u and write extm3u's generic 1st line
+
-printf "#EXTM3U">"$PL"
+
 done
 shift $(($OPTIND-1))
 
-mp3\|ogg\|oga\|mka\|ac3\)$" |sort |while read f ; do
+
 	usage
 	exit 1
 fi
 
 #recurse?
 if [ $rflag ]; then
 	DEPTH=''
 else
 	DEPTH="-maxdepth 1"
 fi
 
 for i in "$@" ; do
 #ensure .m3u name is not dot file if script run within target directory.
 PN=$(basename "$(readlink -f "$i")").m3u
 
 #some simple error checking
 if [ ! -d "$i" ]; then
 	usage
 	exit
 fi
 
 #set output destination. Output dir exists and writeable?
 if [ $oflag ]; then
 	if [ ! -d "$oval" -o ! -w "$oval" ]; then
 	usage
 	exit
 	fi
 	PL=$oval/"$PN"
 	else
 	PL="$i"/"$PN"
 fi
 
 #playlist exists? overwrite?
 if [ $Dflag ] && [ -f "$PL" ]; then
     printf "\n$PL already exists.\n"
     continue
     else
     > "$PL"
 fi
 
 if [ ! $sflag ]; then
     #write mandatory extm3u8 header
     printf "#EXTM3U">"$PL"
     WRITE=xlist
     else
     WRITE=slist
 fi
 
 #find all audio files to be referenced in .m3u
 find "$i" $DEPTH -iregex ".*\(flac\|ape\|wv\|wav\|mpc\|aac\|m4a\|wma\|\
 mp3\|ogg\|oga\|mka\|ac3\|opus\)$" |sort |while read f ; do
 
 #use full path or simple names?
 if [ $pflag ]; then
 	if [ $cflag ]; then
 		FILENAME=$(readlink -f "$f"|sed 's/\/media\/SANSA\ CLIPP//')
 	elif [ $Cflag ]; then
 		FILENAME=$(readlink -f "$f"|sed 's/media\/LEX/\<microSD1\>/')
 	elif [ $Hflag ]; then
 		FILENAME=$(readlink -f "$f"|sed 's/media\/H[0-9]*.//')
 	else
 		FILENAME=$(readlink -f "$f")
 	fi
 elif [ $relpathflag ]; then
 	FILENAME=$(readlink -f "$f")
 	FILENAME=$(relpath $PWD $FILENAME)
 else
 	FILENAME="${f##*/}"
 fi
 
 #where to dump ffprobe's file info
 DATA="${f%.*}"_data
 
 #run getdata silently (ffprobe generates much unwanted text)
 getdata>/dev/null 2>&1
 
 #write to the playlist, clean up.
 printf "\n#EXTINF:$SEC,$PERF - $TIT\n$FILENAME">>"$PL"
 rm "$DATA"
 done
 
 #confirm to user, quit.
 echo "Wrote "$PL""
 done
 exit 0