djcev.com

#!/bin/sh
#
#  Copyright (c) 2019-2022, Cameron Vanderzanden. Available under the
#  terms of the 2-clause BSD license. Please see the file "LICENSE" in
#  the root dir of this repository for more information.
#
#- mpt_single.sh 2019/11/17 cev, last updated 2021/12/07.
## Usage: mpt_single.sh [-hV] [-g gain] [-s rate] <file>
## 
##     Use openmpt123 to render <file> to flac.
## 
##       -g     Set output gain to <gain> dB (passed to openmpt123)
##       -h     Show help
##       -s     Set samplerate to <rate> (passed to openmpt123) 
##       -V     Print version info
#
# TODO: This could be fleshed out quite a bit.

[ -x $HOME/.local/bin/cev_print.sh ] && . $HOME/.local/bin/cev_print.sh

self="${0##*'/'}"

gain="-1.0"
samplerate="44100"

die_nofile() {
    print_nofile
    exit 1
}

die_filenotfound() {
    print_filenotfound "$*"
    exit 1
}

do_file() {
    openmpt123 --dither 1 --gain "$gain" \
        --no-float --samplerate "$samplerate"  \
        --no-details --no-progress --no-meters \
        --render "$*"
    modtype="$(printf "%s" "$*" | awk -F. '{ print $NF }')"
    bname="$(basename "$*" ".$modtype")"
    flac --totally-silent -o "$bname.flac" "$*.wav"
    rm "$*.wav"
}

while getopts "g:hs:V?" option; do
    case $option in
        g) gain="$OPTARG" ;;
        h) print_help && exit ;;
        s) samplerate="$OPTARG" ;;
        V) print_version && exit ;;
        "?") print_help && exit ;;
    esac
    shift $((OPTIND - 1))
done

[ $# -lt 1 ] && die_nofile
[ ! -e "$*" ] && die_filenotfound "$*"

do_file "$*"

exit 0