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#!/usr/bin/env bash
tmp_dir=$(mktemp -d)
out_tmp_dir=$(mktemp -d)
RED='\033[0;31m'
GREEN='\033[0;32m'
WHITE='\033[1;37m'
BLUE='\033[0;34m'
BROWN='\033[0;33m'
PURPLE='\033[0;35m'
NC='\033[0m'
help() {
echo
echo -e " ${BLUE}AUDIO CONCATENATOR$NC"
echo -e "Merge audios into a single file."
echo -e "This is just a shell script ffmpeg concat wrapper"
echo
echo -e "${GREEN}Usage:$NC $0 ${GREEN}-i$NC ${PURPLE}<input1.file>$NC ${GREEN}-i$NC ${PURPLE}<input2.file>$NC ${GREEN}-i$NC ${PURPLE}<input3.file>$NC ... ${GREEN}-o$NC ${PURPLE}<output.file>$NC"
echo -e "${GREEN}Usage:$NC $0 ${GREEN}-o$NC ${PURPLE}<output.file>$NC ${PURPLE}*.mp3$NC"
}
input_files=()
output_file=""
while getopts "hi::o:" opt
do
case "${opt}" in
\?)
echo -e "${RED}Invalid option or missing argument: $OPTARG${NC}"
echo
help
exit 1
;;
h)
help
exit 0
;;
i)
input_files+=("$OPTARG")
;;
o)
output_file="$OPTARG"
;;
esac
done
shift $(($OPTIND - 1))
for arg in "$@"; do
input_files+=("$arg")
done
# for val in "${input_files[@]}"
# do
# echo input $val
# done
# echo output $output_file
# exit
if [[ -z $input_files ]] || [[ -z $output_file ]]; then
echo -e "${RED}Arguments -i and -o are required$NC"
help
exit 1
fi
for i in "${input_files[@]}"
do
ffmpeg -y -i "$i" "$tmp_dir/$i.wav";
done
ls "$tmp_dir"/*.wav > "$tmp_dir"/list.txt
sed -i 's/^/file /' "$tmp_dir"/list.txt
ffmpeg -y -f concat -safe 0 -i "$tmp_dir"/list.txt -c copy "$out_tmp_dir"/output.wav
ffmpeg -y -i "$out_tmp_dir"/output.wav "$output_file"
rm -rf "$tmp_dir"
rm -rf "$out_tmp_dir"
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