Um die @meridius-Lösung auf meinem Mac zum Laufen zu bringen, musste ich etwas mehr Arbeit leisten und das Skript ein wenig ändern:
# Let's install bpm-tools git clone http://www.pogo.org.uk/~mark/bpm-tools.git cd bpm-tools make && make install # There will be errors, but they did not affect the result # The following three lines could be replaced by including this directory in your $PATH ln -s <absolute path to bpm-tools>/bpm /usr/local/bin/bpm ln -s <absolute path to bpm-tools>/bpm-tag /usr/local/bin/bpm-tag ln -s <absolute path to bpm-tools>/bpm-graph /usr/local/bin/bpm-graph cd .. # Time to install a bunch of GNU tools # Not all of these packages are strictly necessary for this script, but I decided I wanted the whole GNU toolchain in order to avoid this song-and-dance in the future brew install coreutils findutils gnu-tar gnu-sed gawk gnutls gnu-indent gnu-getopt bash flac vorbis-tools brew tap homebrew/dupes; brew install grep # Now for Mutagen (contains mid3v2) git clone https://github.com/nex3/mutagen.git cd mutagen ./setup.py build sudo ./setup.py install # There will be errors, but they did not affect the result cd ..
Dann musste ich das Skript so anpassen, dass es auf die GNU-Versionen von allem und ein paar weiteren Verbesserungen zeigte:
#!/usr/local/bin/bash # ================================= FUNCTIONS ================================= function help() { less <<< 'BPMWRAP Description: This BASH script is a wrapper for bpm-tag utility of bpm-tools and several audio tagging utilities. The purpose is to make BPM (beats per minute) tagging as easy as possible. Default behaviour is to look through working directory for *.mp3 files and compute and print their BPM in the following manner: [current (if any)] [computed] [filename] Usage: bpmwrap [options] [directory or filenames] Options: You can specify files to process by one of these ways: 1) state files and/or directories containing them after options 2) specify --import file 3) specify --input file With either way you still can filter the resulting list using --type option(s). Remember that the script will process only mp3 files by default, unless specified otherwise! -i, --import file Use this option to set BPM tag for all files in given file instead of computing it. Expected format of every row is BPM number and absolute path to filename separated by semicolon like so: 145;/home/trinity/music/Apocalyptica/07 beyond time.mp3 Remember to use --write option too. -n, --input file Use this option to give the script list of FILES to process INSTEAD of paths where to look for them. Each row whould have one absolute path. This will bypass the searching part and is that way useful when you want to process large number of files several times. Like when you are not yet sure what BPM limits to set. Extension filtering will still work. -o, --output file Save output also to a file. -l, --list-save file Save list of files about to get processed. You can use this list later as a file for --input option. -t, --type filetype Extension of file type to work with. Defaults to mp3. Can be specified multiple times for more filetypes. Currently supported are mp3 ogg flac. -e, --existing-only Only show BPM for files that have it. Do NOT compute new one. -w, --write Write computed BPM to audio file but do NOT overwrite existing value. -f, --force Write computed BPM to audio file even if it already has one. Aplicable only with --write option. -m, --min minbpm Set minimal BPM to look for when computing. Defaults to bpm-tag minimum 84. -x, --max maxbpm Set maximal BPM to look for when computing. Defaults to bpm-tag maximum 146. -v, --verbose Show "progress" messages. -c, --csv-friendly Use semicolon (;) instead of space to separate output columns. -h, --help Show this help. Note: Program bpm-tag (on whis is this script based) is looking only for lowercase file extensions. If you get 0 (zero) BPM, this should be the case. So just rename the file. License: GPL V2 Links: bpm-tools (http://www.pogo.org.uk/~mark/bpm-tools/) Dependencies: bpm-tag mid3v2 vorbiscomment metaflac Author: Martin Lukeš (martin.meridius@gmail.com) Based on work of kolypto (http://superuser.com/a/129157/137326) ' } # Usage: result=$(inArray $needle haystack[@]) # @param string needle # @param array haystack # @returns int (1 = NOT / 0 = IS) in array function inArray() { needle="$1" haystack=("${!2}") out=1 for e in "$" ; do if [[ "$e" = "$needle" ]] ; then out=0 break fi done echo $out } # Usage: result=$(implode $separator array[@]) # @param char separator # @param array array to implode # @returns string separated array elements function implode() { separator="$1" array=("${!2}") IFSORIG=$IFS IFS="$separator" echo "$" IFS=$IFSORIG } # @param string file # @returns int BPM value function getBpm() { local file="$1" local ext="$" declare -l ext # convert to lowercase { case "$ext" in 'mp3') mid3v2 -l "$file" ;; 'ogg') vorbiscomment -l "$file" ;; 'flac') metaflac --export-tags-to=- "$file" ;; esac ; } | fgrep 'BPM=' -a | cut -d'=' -f2 } # @param string file # @param int BPM value function setBpm() { local file="$1" local bpm="$" local ext="$" declare -l ext # convert to lowercase case "$ext" in 'mp3') mid3v2 --TBPM "$bpm" "$file" ;; 'ogg') vorbiscomment -a -t "BPM=$bpm" "$file" ;; 'flac') metaflac --set-tag="BPM=$bpm" "$file" mid3v2 --TBPM "$bpm" "$file" # Need to store to ID3 as well :( ;; esac } # # @param string file # # @returns int BPM value function computeBpm() { local file="$1" local m_opt="" [ ! -z "$m" ] && m_opt="-m $m" local x_opt="" [ ! -z "$x" ] && x_opt="-x $x" local row=$(bpm-tag -fn $m_opt $x_opt "$file" 2>&1 | fgrep "$file") echo $(echo "$row" \ | gsed -r 's/.+ ([0-9]+\.[0-9]) BPM/\1/' \ | gawk '') } # @param string file # @param int file number # @param int BPM from file list given by --import option function oneThread() { local file="$1" local filenumber="$2" local bpm_hard="$3" local bpm_old=$(getBpm "$file") [ -z "$bpm_old" ] && bpm_old="NONE" if [ "$e" ] ; then # only show existing myEcho "$filenumber/$NUMFILES$$bpm_old$$file" else # compute new one if [ "$bpm_hard" ] ; then local bpm_new="$bpm_hard" else local bpm_new=$(computeBpm "$file") fi [ "$w" ] && { # write new one if [[ ! ( ("$bpm_old" != "NONE") && ( -z "$f" ) ) ]] ; then setBpm "$file" "$bpm_new" else [ "$v" ] && myEcho "Non-empty old BPM value, skipping ..." fi } myEcho "$filenumber/$NUMFILES$$bpm_old$$bpm_new$$file" fi } function myEcho() { [ "$o" ] && echo -e "$1" >> "$o" echo -e "$1" } # ================================== OPTIONS ================================== eval set -- $(/usr/local/Cellar/gnu-getopt/1.1.6/bin/getopt -n $0 -o "-i:n:o:l:t:ewfm:x:vch" \ -l "import:,input:,output:,list-save:,type:,existing-only,write,force,min:,max:,verbose,csv-friendly,help" -- "$@") declare i n o l t e w f m x v c h declare -a INPUTFILES declare -a INPUTTYPES while [ $# -gt 0 ] ; do case "$1" in -i|--import) shift ; i="$1" ; shift ;; -n|--input) shift ; n="$1" ; shift ;; -o|--output) shift ; o="$1" ; shift ;; -l|--list-save) shift ; l="$1" ; shift ;; -t|--type) shift ; INPUTTYPES=("$" "$1") ; shift ;; -e|--existing-only) e=1 ; shift ;; -w|--write) w=1 ; shift ;; -f|--force) f=1 ; shift ;; -m|--min) shift ; m="$1" ; shift ;; -x|--max) shift ; x="$1" ; shift ;; -v|--verbose) v=1 ; shift ;; -c|--csv-friendly) c=1 ; shift ;; -h|--help) h=1 ; shift ;; --) shift ;; -*) echo "bad option '$1'" ; exit 1 ;; #FIXME why this exit isn't fired? *) INPUTFILES=("$" "$1") ; shift ;; esac done # ================================= DEFAULTS ================================== #NOTE Remove what requisities you don't need but don't try to use them after! # always mp3/flac ogg flac REQUIRES="bpm-tag mid3v2 vorbiscomment metaflac" which $REQUIRES > /dev/null || { myEcho "These binaries are required: $REQUIRES" >&2 ; exit 1; } [ "$h" ] && { help exit 0 } [[ $m && $x && ( $m -ge $x ) ]] && { myEcho "Minimal BPM can't be bigger than NOR same as maximal BPM!" exit 1 } [[ "$i" && "$n" ]] && { echo "You cannot specify both -i and -n options!" exit 1 } [[ "$i" && ( "$m" || "$x" ) ]] && { echo "You cannot use -m nor -x option with -i option!" exit 1 } [ "$e" ] && { [[ "$w" || "$f" ]] && { echo "With -e option you don't have any value to write!" exit 1 } [[ "$m" || "$x" ]] && { echo "With -e option you don't have any value to count!" exit 1 } } for file in "$o" "$l" ; do if [ -f "$file" ] ; then while true ; do read -n1 -p "Do you want to overwrite existing file $? (Y/n): " key case "$key" in y|Y|"") echo "" > "$file" ; break ;; n|N) exit 0 ;; esac echo "" done echo "" fi done [ ${#INPUTTYPES} -eq 0 ] && INPUTTYPES=("mp3") # NUMCPU="$(ggrep ^processor /proc/cpuinfo | wc -l)" NUMCPU="$(sysctl -a | ggrep machdep.cpu.core_count | gsed -r 's/(.*)([0-9]+)(.*)/\2/')" LASTPID=0 TYPESALLOWED=("mp3" "ogg" "flac") # declare -A BPMIMPORT # array of BPMs from --import file, keys are file names declare -A BPMIMPORT # array of BPMs from --import file, keys are file names for type in "$" ; do [[ $(inArray $type TYPESALLOWED[@]) -eq 1 ]] && { myEcho "Filetype $type is not one of allowed types ($)!" exit 1 } done ### here are three ways how to pass files to the script... if [ "$i" ] ; then # just parse given file list and set BPM to listed files if [ -f "$i" ] ; then # myEcho "Setting BPM tags from given file ..." while read row ; do bpm="$" file="$" ext="$" ext="$" # convert to lowercase if [ -f "$file" ] ; then if [ $(inArray $ext INPUTTYPES[@]) -eq 0 ] ; then FILES=("$" "$file") BPMIMPORT["$file"]="$bpm" else myEcho "Skipping file on row $rownumber (unwanted filetype $ext) ... $file" fi else myEcho "Skipping non-existing file $file" fi done < "$i" else myEcho "Given import file does not exists!" exit 1 fi elif [ "$n" ] ; then # get files from file list if [ -f "$n" ] ; then rownumber=1 while read file ; do if [ -f "$file" ] ; then ext="$" ext="$" # convert to lowercase if [ $(inArray $ext INPUTTYPES[@]) -eq 0 ] ; then FILES=("$" "$file") else myEcho "Skipping file on row $rownumber (unwanted filetype $ext) ... $file" fi else myEcho "Skipping file on row $rownumber (non-existing) ... $file" fi let rownumber++ done < "$n" unset rownumber else myEcho "Given input file $n does not exists!" exit 1 fi else # get files from given parameters [ ${#INPUTFILES[@]} -eq 0 ] && INPUTFILES=`pwd` for file in "$" ; do [ ! -e "$file" ] && { myEcho "File or directory $file does not exist!" exit 1 } done impl_types=`implode "|" INPUTTYPES[@]` while read file ; do echo -ne "Creating list of files ... (${#FILES[@]}) $\033[0K"\\r FILES=("$" "$file") done < <(gfind "$" -type f -regextype posix-awk -iregex ".*\.($impl_types)") echo -e "Counted ${#FILES[@]} files\033[0K"\\r fi [ "$l" ] && printf '%s\n' "$" > "$l" NUMFILES=${#FILES[@]} FILENUMBER=1 [ $NUMFILES -eq 0 ] && { myEcho "There are no $ files in given files/paths." exit 1 } declare SEP=" " [ "$c" ] && SEP=";" # =============================== MAIN SECTION ================================ if [ "$e" ] ; then # what heading to show myEcho "num$old$filename" else myEcho "num$old$new$filename" fi for file in "$" ; do [ `jobs -p | wc -l` -ge $NUMCPU ] && wait [ "$v" ] && myEcho "Parsing ($/$)\t$file ..." oneThread "$file" "$FILENUMBER" "$" & LASTPID="$!" let FILENUMBER++ done [ "$v" ] && myEcho "Waiting for last process ..." wait $LASTPID [ "$v" ] && myEcho \\n"DONE"
Vielen Dank für Ihre harte Arbeit @kolypto und @meridius.
... den Schmerz, den ich durchmache, um einen CLI-Workflow aufrechtzuerhalten und kein Geld für Musikwerkzeuge zu zahlen ...