使用bash在ffmpeg中添加带空格的mp3元数据

我在下载youtube视频时使用了这个bash脚本，然后使用youtube dl和ffmpeg将其转换为mp3

#!/bin/bash

ytlink=""
outputFileName=""
title=""
artist=""
album=""

while getopts l:o:t:r:b: flag; do
  case "${flag}" in
    l) ytlink="${OPTARG}";;
    o) outputFileName="${OPTARG}";;
    t) title="${OPTARG}";;
    r) artist="${OPTARG}";;
    b) album="${OPTARG}";;
  esac
done

youtube-dl "$ytlink" --add-metadata --extract-audio --audio-format mp3 --output "temp.%(ext)s"

tempFilename="temp.mp3"
outputFileName="$outputFileName.mp3"

args+=("-i" "$tempFilename" "-metadata" "title='$title'" "-metadata" "artist='$artist'" "-metadata" "album='$album'" "-metadata" "comment=Source:$ytlink")
ffmpeg -loglevel debug ${args[@]} -acodec copy "$outputFileName"
rm "$tempFilename"

如果我有一个单词title/artist/album，这个脚本就可以了。但是，如果我有一个空格，ffmpeg将空格前的每个单词解释为另一个参数。以下是我在命令行中使用此命令的方式：

/yttomp3.sh-l”https://www.youtube.com/watch?v=KwQnSHAilOQ“-o“Lee-秋季节”-t“秋季节”-r“Lee”-b（免费）低保真型节拍-秋季节”

ffmpeg的调试输出：

Splitting the commandline.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.
Reading option '-i' ... matched as input url with argument 'temp.mp3'.
Reading option '-metadata' ... matched as option 'metadata' (add metadata) with argument 'title='Autumn'.
Reading option 'Day'' ... matched as output url.
Reading option '-metadata' ... matched as option 'metadata' (add metadata) with argument 'artist='Lee''.
Reading option '-metadata' ... matched as option 'metadata' (add metadata) with argument 'album='(Free)'.
Reading option 'Lo-fi' ... matched as output url.
Reading option 'Type' ... matched as output url.
Reading option 'Beat' ... matched as output url.
Reading option '-' ... matched as output url.
Reading option 'Autumn' ... matched as output url.
Reading option 'Day'' ... matched as output url.
Reading option '-metadata' ... matched as option 'metadata' (add metadata) with argument 'comment=Source:https://www.youtube.com/watch?v=KwQnSHAilOQ'.
Reading option '-acodec' ... matched as option 'acodec' (force audio codec ('copy' to copy stream)) with argument 'copy'.
Reading option 'Lee - Autumn Day.mp3' ... matched as output url.
Finished splitting the commandline.

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我试着在脚本中用引号括起参数，但仍然不起作用。我该如何处理这件事？谢谢。

你正在竭尽全力构建一个数组，并仔细引用你所有的字符串。。。然后不引用数组

您想在“${args[@]}”周围加双引号

请查看：