将 mp3 文件中的繁体中文信息转换成简体中文信息

mp3_hant2hans.sh

#!/bin/bash

# 将 mp3 文件中的繁体字转换为简体字
# 依赖：opencc mid3v2
# 用法：hant2hans.sh [-d dir] [-f file]

set -e

function get_by_id() {
    mid3v2 -l "$1" | grep "$2" | cut -d= -f2 | sed 's/^[ \t]*//'
}

function convert_single_file() {
    local file="$1"

    if [ ! -f "$file" ]; then
        echo "Error: $file is not a file"
        exit 1
    fi

    local title="$(get_by_id "$file" TIT2)"
    local artist="$(get_by_id "$file" TPE1)"
    local album="$(get_by_id "$file" TALB)"
    local title_s="$(echo "$title" | opencc -c t2s.json)"
    local artist_s="$(echo "$artist" | opencc -c t2s.json)"
    local album_s="$(echo "$album" | opencc -c t2s.json)"
    echo "mid3v2 -t \"$title_s\" -a \"$artist_s\" -A \"$album_s\" \"$file\""
    mid3v2 -t "$title_s" -a "$artist_s" -A "$album_s" "$file"
}

function convert_dir() {
    local dir="$1"

    if [ ! -d "$dir" ]; then
        echo "Error: $dir is not a directory"
        exit 1
    fi

    local files="$(find "$dir" -type f -name "*.mp3")"
    echo "$files" | while read file; do
        convert_single_file "$file"
    done
}

function usage() {
    echo "Usage: $0 [-d dir] [-f file]"
    exit 0
}

function check_dependency() {
    if ! command -v "$1" >/dev/null 2>&1; then
        echo "Error: $1 is not installed"
        exit 1
    fi
}

check_dependency opencc
check_dependency mid3v2

if [ $# -eq 0 ]; then
    usage
    exit 0
fi

while getopts "d:f:h" arg; do
    case $arg in
        d)
            convert_dir "$OPTARG"
            ;;
        f)
            convert_single_file "$OPTARG"
            ;;
        h)
            usage
            exit 0
            ;;
        ?)
            echo "unkonw argument"
            exit 1
            ;;
    esac
done