129 lines
2.4 KiB
Text
129 lines
2.4 KiB
Text
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#!/bin/sh
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ACONV_OUTDIR="./converted"
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ACONV_CODEC="libopus"
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ACONV_BITRATE="128k"
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ACONV_CONTAINER="ogg"
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ACONV_QUIET=0
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ACONV_THREADS=$(nproc --ignore=2)
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chk_command() {
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if ! command -v "$1" > /dev/null; then
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>&2 echo "error: command '$1' could not be found"
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exit 1
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fi
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}
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chk_command "ffmpeg"
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chk_command "getopts"
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chk_command "parallel"
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chk_command "find"
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usage() {
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printf "usage: aconv [-hs] [options] dir\n"
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}
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help() {
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printf "usage: aconv [-hs] [options] dir\n\n"
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printf "\t-h\t\tprint this message\n"
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printf "\t-q\t\tset quiet output (only errors)\n"
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printf "\t-o OUTDIR\tset the output directory\n"
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printf "\t-c CODEC\tset the output codec\n"
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printf "\t-C CONTAINER\tset the output container\n"
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printf "\t-b BITRATE\tset the output bitrate\n"
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printf "\t-j THREADS\tset the number of threads (default all but 2)\n"
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}
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while getopts "hqo:c:C:b:j:" arg > /dev/null; do
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case $arg in
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h)
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help
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exit 0
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;;
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q)
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ACONV_QUIET=1
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;;
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o)
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ACONV_OUTDIR=${OPTARG}
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;;
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c)
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ACONV_CODEC=${OPTARG}
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;;
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C)
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ACONV_CONTAINER=${OPTARG}
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;;
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b)
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ACONV_BITRATE=${OPTARG}
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;;
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j)
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ACONV_THREADS=${OPTARG}
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;;
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?)
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>&2 echo "error: unknown option"
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usage
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exit 1
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;;
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esac;
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done;
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ACONV_DIR=${@:$OPTIND:1}
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if [ "$ACONV_DIR" = "" ]; then
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usage
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exit 1
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fi
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if [ ! -d "$ACONV_DIR" ]; then
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>&2 echo "error: input directory '$ACONV_DIR' does not exist"
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exit 1
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fi
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convert_file() {
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# get arguments
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file="$1"
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ext="$2"
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name=${file%.*};
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# print log
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if [ "$ACONV_QUIET" -eq 0 ]; then
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printf "\x1b[34m CONV \x1b[0m%s\n" "$ACONV_OUTDIR/$name.$ACONV_CONTAINER"
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fi
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# do the thing
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ffmpeg -nostdin -y -i "$file" -c:a "$ACONV_CODEC" -b:a "$ACONV_BITRATE" "$ACONV_OUTDIR/$name.$ACONV_CONTAINER" -loglevel fatal
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}
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export ACONV_OUTDIR
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export ACONV_CODEC
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export ACONV_BITRATE
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export ACONV_CONTAINER
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export ACONV_QUIET
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export ACONV_THREADS
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export -f convert_file
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convert_type() {
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# get arguments
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dir="$1"
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ext="$2"
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# convert the files
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find "$dir" -type f -name "*.$ext" | parallel -j "$ACONV_THREADS" convert_file "{}" "$ext"
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}
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convert_dir() {
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# get arguments
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dir="$1"
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# make the output dirs
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find "$dir" -type d -print0 |xargs -0 -I{} mkdir -p "$ACONV_OUTDIR/{}"
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# convert the things
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convert_type "$dir" "mp3"
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convert_type "$dir" "m4a"
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convert_type "$dir" "ogg"
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convert_type "$dir" "flac"
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convert_type "$dir" "wav"
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convert_type "$dir" "avif"
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}
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# do the thing
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convert_dir "$ACONV_DIR"
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