m4bjoin.sh

m4bjoin.sh

#!/bin/bash

echo "Checking folders..."
echo
for file in *; do
	if [ -d "$file" ]; then
		echo "Folder found: $file"
		echo "Checking for MP3 files..."
		mp3count=`find "$file" -maxdepth 1 -name "*.mp3" | wc -l`
		echo $mp3count
		if [ "$mp3count" -gt 1 ]; then
			echo "Folder is ready to merge..."
			brcheck=`find "$file" -name "*.mp3" | head -1`
			bitrate=`ffprobe -hide_banner -loglevel 0 -of flat -i "$brcheck" -select_streams a -show_entries format=bit_rate -of default=noprint_wrappers=1:nokey=1`
			docker run -it --rm -u $(id -u):$(id -g) -v "$(pwd)/$file":/mnt:z m4b-tool merge "." -n -q --skip-cover --audio-bitrate="$bitrate" --audio-codec=libfdk_aac --jobs=4 --output-file="$file.m4b" --logfile="$file.log"
			echo "Merge done... Moving on."
			echo
		else
			echo "Not ready for the merge..."
		fi
		echo
	fi
done