目的：检查指定目录下的所有视频文件，找到有广告软字幕和广告图片的文件，删除文件中的广告软字幕和广告图片
我自己花了点时间写一个windows 下的powershell 脚本用于达到上述目的。
脚本如下：
$backup_orginal_file = 1
$remove_subtitles = 1
$remove_images = 1
$files = get-childitem | where extension -in '.mkv', '.mp4'
foreach ($file in $files) {
$name = $file.name
$f = ffprobe -loglevel quiet -select_streams s -show_entries stream=index,codec_type -of json "$name" | ConvertFrom-Json
$txt_count = $f.streams.length
if ($txt_count -gt 0) {
echo "$($name)有$($txt_count)条字幕"
}
$disp = ffprobe -loglevel quiet -select_streams v -show_entries disposition=attached_pic,timed_thumbnails,still_image -of json "$name" | ConvertFrom-Json
$img_count = 0
foreach ($stream in $disp.streams) {
if ($stream.disposition.attached_pic -eq 1 -or $stream.disposition.timed_thumbnails -eq 1 -or $stream.disposition.still_image -eq 1) {
$img_count++
}
}
if ($img_count -gt 0) {
echo "$($name)有$($img_count)张图片"
}
if ($txt_count -eq 0 -and $img_count -eq 0) {
continue
}
if ($remove_subtitles -eq 0 -and $remove_images -eq 0) {
continue
}
$from_name = "[backup] $($name)"
rename-item -LiteralPath $name -NewName $from_name
if ($remove_subtitles -eq 1 -and $remove_images -eq 1) {
ffmpeg -loglevel quiet -i "$from_name" -map 0:V -map 0:a -c copy "$name"
echo "$($name)已去除字幕和图片"
} elseif ($remove_subtitles -eq 0 -and $remove_images -eq 1) {
ffmpeg -loglevel quiet -i "$from_name" -map 0:V -map 0:a -map 0:s -c copy "$name"
echo "$($name)已去除图片"
} elseif ($remove_subtitles -eq 1 -and $remove_images -eq 0) {
ffmpeg -loglevel quiet -i "$from_name" -map 0:v -map 0:a -c copy "$name"
echo "$($name)已去除字幕"
}
if ($backup_orginal_file -eq 0) {
reomove-item -LiteralPath "$from_name"
}
}