configs/arch-config/scripts/pieces/music-multi-ffmpeg.sh

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#!/bin/bash
set -euo pipefail
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# change into music raw folder
cd "$HOME/MusikRaw"
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# number of parallel jobs can be set on as an argument
numjobs="$1"
# using find to get music that has to be transcoded
############################################################
##############################
##### OPUS #####
##############################
# find opus, ignore anything in "normalized" or "transcode" folders
find "$HOME/MusikRaw/" -name "*\.opus" | grep -v "\/normalized\/" | grep -v "\/transcode\/" > opusfiles
while read -r opus; do
# if there are $numjobs or more, dont spawn any new processes
while [[ $(jobs | wc -l) -gt $numjobs ]] ; do sleep 1 ; done
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# get directory path
pathname="$(dirname "$opus")"
# go to that path for proper output location
cd "$pathname"
# convert file
ffmpeg-normalize "$opus" -v -pr -c:a libopus -b:a 128k -ext opus &
done < opusfiles
# go to musik raw folder
cd "$HOME/MusikRaw"
# cleanup
rm opusfiles
##############################
##### M4A #####
##############################
# find m4a files, ignore "normalized" or "transcode" folders
find "$HOME/MusikRaw/" -name "*\.m4a" | grep -v "\/normalized\/" | grep -v "\/transcode\/" > m4afiles
while read -r m4a; do
# if there are $numjobs or more, dont spawn any new processes
while [[ $(jobs | wc -l) -gt $numjobs ]] ; do sleep 1 ; done
# get directory path
pathname="$(dirname "$m4a")"
# go to that path for proper output location
cd "$pathname"
# convert file
ffmpeg-normalize "$m4a" -v -pr -c:a libopus -b:a 128k -ext opus &
done < m4afiles
# go to musik raw folder
cd "$HOME/MusikRaw"
# cleanup
rm m4afiles
##############################
##### FLAC #####
##############################
# find flac files, ignore "normalized" or "transcode" folders
find "$HOME/MusikRaw/" -name "*\.flac" | grep -v "\/normalized\/" | grep -v "\/transcode\/" > flacfiles
while read -r flac; do
# if there are $numjobs or more, dont spawn any new processes
while [[ $(jobs | wc -l) -gt $numjobs ]] ; do sleep 1 ; done
# get directory path
pathname="$(dirname "$flac")"
# go to that path for proper output location
cd "$pathname"
# create directory for transcodes
mkdir -p "$pathname/transcode"
# get name of file
file="$(basename "$flac")"
# strip extension
noextfile="${file%.*}"
# add opus extension
opusfile="${noextfile}.opus"
# convert to opus in transcode directory
# TODO include cover picture (prefer file picture, cover.jpg second preference)
ffmpeg -nostdin -i "$flac" -b:a 256k "${pathname}/transcode/$opusfile" &
done < flacfiles
# wait for previous jobs to finish
while [[ $(jobs | wc -l) -gt 1 ]] ; do sleep 1 ; done
cd "$HOME/MusikRaw"
# convert previously transcoded flacs
while read -r flac; do
# if there are $numjobs or more, dont spawn any new processes
while [[ $(jobs | wc -l) -gt $numjobs ]] ; do sleep 1 ; done
# get directory path
pathname="$(dirname "$flac")"
# go to that path for proper output location
cd "$pathname"
# get name of file
file="$(basename "$flac")"
# strip extension
noextfile="${file%.*}"
# add opus extension
opusfile="${noextfile}.opus"
# convert opus in transcode to normalized
ffmpeg-normalize "transcode/$opusfile" -v -pr -c:a libopus -b:a 256k -ext opus &
done < flacfiles
# go to musik raw folder
cd "$HOME/MusikRaw"
# cleanup
rm flacfiles
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##############################
##### MP3 #####
##############################
# find mp3 files, ignore "normalized" or "transcode" folders
find "$HOME/MusikRaw/" -name "*\.mp3" | grep -v "\/normalized\/" | grep -v "\/transcode\/" > mp3files
while read -r mp3; do
# if there are $numjobs or more, dont spawn any new processes
while [[ $(jobs | wc -l) -gt $numjobs ]] ; do sleep 1 ; done
# get directory path
pathname="$(dirname "$mp3")"
# go to that path for proper output location
cd "$pathname"
# create directory for transcodes
mkdir -p "$pathname/transcode"
# get name of file
file="$(basename "$mp3")"
# strip extension
noextfile="${file%.*}"
# add opus extension
opusfile="${noextfile}.opus"
# convert to opus in transcode directory
# TODO include cover picture (prefer file picture, cover.jpg second preference)
ffmpeg -nostdin -i "$mp3" -b:a 192k "${pathname}/transcode/$opusfile" &
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done < mp3files
# wait for previous jobs to finish
while [[ $(jobs | wc -l) -gt 1 ]] ; do sleep 1 ; done
cd "$HOME/MusikRaw"
# convert previously transcoded mp3s
while read -r mp3; do
# if there are $numjobs or more, dont spawn any new processes
while [[ $(jobs | wc -l) -gt $numjobs ]] ; do sleep 1 ; done
# get directory path
pathname="$(dirname "$mp3")"
# go to that path for proper output location
cd "$pathname"
# get name of file
file="$(basename "$mp3")"
# strip extension
noextfile="${file%.*}"
# add opus extension
opusfile="${noextfile}.opus"
# convert opus in transcode to normalized
ffmpeg-normalize "transcode/$opusfile" -v -pr -c:a libopus -b:a 192k -ext opus &
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done < mp3files
# go to musik raw folder
cd "$HOME/MusikRaw"
# cleanup
rm mp3files
############################################################
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echo Finished!
exit