Re-Audio and Subtitle for MKV files

rasm

#!/bin/bash
# Re-Audio/Sub for MKV files
# Run this script from the directory you want to work in
# Dependency: mkvtoolnix-cli
# Audio and subtitle tracks can be checked in a video player like mpv in its audio track selection or in a program like mkvtoolnix-gui

main() {
    command="find . -name \"*.mkv\" -exec mkvpropedit {} "$commandAudioPart" "$commandSubtitlePart" \;"
    echo "$command"
    eval "$command"
}

audio() {
    printf "Which audio track is currently the default? "; read defaultAudioTrack
    printf "Which audio track do you want to be made default? "; read newDefaultAudioTrack
    commandAudioPart="--edit track:a$defaultAudioTrack --set flag-default=0 --edit track:a$newDefaultAudioTrack --set flag-default=1"
}

subtitle() {
    printf "Which subtitle track is currently the default? (put 0 if there is no default subtitle track) "; read defaultSubtitleTrack
    printf "Which subtitle track do you want to be made default? "; read newDefaultSubtitleTrack
    if [[ "$defaultSubtitleTrack" != "0" ]]; then
        commandSubtitlePart="--edit track:s$defaultSubtitleTrack --set flag-default=0 --edit track:s$newDefaultSubtitleTrack --set flag-default=1"
    else
        commandSubtitlePart="--edit track:s$newDefaultSubtitleTrack --set flag-default=1"
    fi

}

printf "Change default audio track? [Y/n] "; read changeAudio
[[ "${changeAudio,,}" =~ [nN] ]] || audio

printf "Change default subtitle track? [Y/n] "; read changeSubtitle
[[ "${changeSubtitle,,}" =~ [nN] ]] || subtitle

main