💾 Archived View for seydaneen.nahtgards.de › leuchtturm › dwemerartefakte › linux_und_unix › scripte… captured on 2024-06-16 at 12:17:40.
⬅️ Previous capture (2022-06-03)
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#!/bin/bash # # A simple bash script to convert a mp3 based by-track-splitted audio book into one m4b file # set -o errexit set -o nounset if [ -z "$1" ]; then echo "The first param needs to be to folder to convert..." exit 1; elif ! [ -d "$1" ]; then echo "$1 could not be found or is not a directory." exit 1; fi if ! [ -x "$(command -v ffmpeg)" ] || ! [ -x "$(command -v ffprobe)" ] || ! [ -x "$(command -v mpg123)" ] || ! [ -x "$(command -v faac)" ]; then echo "Required programms are not installed. You need ffmpeg, ffprobe, mpg123 and faac." >&2 exit 1; fi # some cleanup if the script has crashed if [ -f /tmp/audiobookgen_tmp.m4b ]; then rm /tmp/audiobookgen_tmp.m4b fi if [ -f /tmp/audiobookgen_FFMETADATAFILE.txt ]; then rm /tmp/audiobookgen_FFMETADATAFILE.txt fi # some initial vars startts=0 title= artist= album= disc= date= chapters= counttracks=0 # 183 is a audiobook, but it's not standard id3v2. check "id3v2 -L" for a complete list of supported types genre=12 # let the script know where it is, where the source is and set the name of the m4b. currentDir=$(pwd -P) mp3audiobookdir=$(realpath "$1") m4bfileName=$(basename "$mp3audiobookdir") echo "checking mp3 files..." cd "$mp3audiobookdir" for f in *.mp3; do #all=$(ffprobe -loglevel quiet -show_entries format_tags "$f"); title=$(ffprobe -loglevel quiet -show_entries format_tags=title -of default=noprint_wrappers=1:nokey=1 "$f") track=$(ffprobe -loglevel quiet -show_entries format_tags=track -of default=noprint_wrappers=1:nokey=1 "$f") if [ -z "$artist" ]; then artist=$(ffprobe -loglevel quiet -show_entries format_tags=artist -of default=noprint_wrappers=1:nokey=1 "$f") fi if [ -z "$album" ]; then album=$(ffprobe -loglevel quiet -show_entries format_tags=album -of default=noprint_wrappers=1:nokey=1 "$f") fi if [ -z "$disc" ]; then disc=$(ffprobe -loglevel quiet -show_entries format_tags=disc -of default=noprint_wrappers=1:nokey=1 "$f") fi if [ -z "$date" ]; then date=$(ffprobe -loglevel quiet -show_entries format_tags=date -of default=noprint_wrappers=1:nokey=1 "$f") fi duration=$(ffprobe -v error -show_entries stream=duration -of default=noprint_wrappers=1:nokey=1 "$f") duration=$(echo "$duration" | awk -F'.' '{print $1}') chapterstart=$(echo "$startts * 1000 + 1" | bc) chapterend=$(echo "($startts + $duration) * 1000" | bc) startts=$(echo "$startts + $duration" | bc) counttracks=$(echo "$counttracks + 1" | bc) chapters="$chapters\n\n[CHAPTER]\nTIMEBASE=1/1000\nSTART=$chapterstart\nEND=$chapterend\ntitle=$title" done coverparam= if [ -f "cover.jpg" ]; then coverparam="--cover-art cover.jpg" fi # let's show you what i got... clear echo -e "Title: $artist - $album\nTracks: $counttracks"; if [ -z "$date" ]; then echo "Cover: not found (place cover.jpg in your mp3 directory...)" else echo "Cover: found" fi echo -e "Target: $currentDir/$m4bfileName.m4b\n\nPress return to contiune (c for cancel) " read -n 1 k <&1 if [[ $k = c ]] ; then exit 0 fi clear # i'm not setting a "track title" here. if you want to set it add '--title ="$album"' for example mpg123 -s *.mp3 | faac -P -X -w -o /tmp/audiobookgen_tmp.m4b --artist "$artist" --album "$album" --genre "$genre" --year "$date" --disc "$disc" $coverparam - cd "$currentDir" ffmpeg -i /tmp/audiobookgen_tmp.m4b -f ffmetadata /tmp/audiobook_FFMETADATAFILE.txt echo -e $chapters >> /tmp/audiobook_FFMETADATAFILE.txt ffmpeg -i /tmp/audiobookgen_tmp.m4b -i /tmp/audiobook_FFMETADATAFILE.txt -map_metadata 1 -vn -sn -dn -acodec copy "$currentDir/$m4bfileName.m4b" rm /tmp/audiobookgen_tmp.m4b rm /tmp/audiobook_FFMETADATAFILE.txt # if you have problems with the m4b ffmpeg creates, try these lines (https://trac.ffmpeg.org/ticket/8375): #if [ -x "$(command -v MP4Box)" ]; then # MP4Box -brand M4A:0 -rb isom -rb iso2 "$currentDir/$m4bfileName.m4b" # MP4Box -brand M4A:0 -ab isom -ab iso2 "$currentDir/$m4bfileName.m4b" #fi echo -e "\ndone."