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Param($file) | |
$file = Get-Item $file | |
mkvinfo $file.FullName ` | |
| &{ | |
Begin { | |
$current = $NULL | |
} | |
Process { | |
if (!$current) { | |
} | |
elseif ($_ -match '^\| \+ ([^:]+): (.*)$') { | |
switch -Exact ($Matches[1]) { | |
'Language (IETF BCP 47)' { | |
$current['language'] = $Matches[2] | |
} | |
'Name' { | |
$current['name'] = $Matches[2] | |
} | |
'Track type' { | |
$current['type'] = $Matches[2] | |
} | |
'Track number' { | |
$current['track'] = ($Matches[2] -replace '[^0-9].*','') - 1 | |
} | |
'Codec ID' { | |
$current['extension'] = switch -Exact ($Matches[2] -replace '[^A-Z0-9_].*', '') { | |
'A_AAC' { '.aac' } | |
'V_MPEG4' { '.m4v' } | |
'S_TEXT' { '.srt' } | |
} | |
} | |
} | |
} | |
else { | |
$current['filename'] += '_' + ($current['track'] + 1) | |
if ($current['name']) { | |
$current['filename'] += '_' + $current['name'] | |
} | |
if ($current['type'] -in 'audio','subtitles') { | |
$current['filename'] += (" ($($current['language']))","_$($current['language'])")[!$current['name']] | |
} | |
$current['filename'] += $current['extension'] | |
$current | |
$current = $NULL | |
} | |
if ($_ -match '^\| \+ Track') { | |
$current = @{ | |
filename = $file.BaseName | |
} | |
} | |
} | |
} ` | |
| &{ | |
Begin { | |
$commands = $file.FullName,'tracks' | |
} | |
Process { | |
$commands += $_['track'],$_['filename'] -join ':' | |
} | |
End { | |
mkvextract @commands | |
} | |
} |
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gi *.srt ` | |
| %{ | |
$item = $_ | |
&{ | |
'WEBVTT' | |
"Language: $($item.BaseName -replace '^.*_','' -replace '^.* *\((.*)\)$','$1')" | |
'' | |
gc $item | |
} ` | |
| %{ | |
if ($_ -match '^((^|:)\d{2}){2,3},\d{3}(( --> |:)\d{2}){2,3},\d{3}(\s|$)') { | |
([Regex]',').Replace($_, '.', 2) | |
} | |
else { | |
$_ | |
} | |
"`r`n" | |
} ` | |
| Out-File -NoNewline -LiteralPath ($_.BaseName + '.vtt') | |
} |
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ffmpeg \ | |
-i "$1.mp4" \ | |
-c:v libx264 \ | |
-crf 23 \ | |
-c:a aac \ | |
-movflags faststart \ | |
-maxrate 2M \ | |
-bufsize 2M \ | |
"$dest/$1.mp4" | |
curl \ | |
--form subrip_file=@"$1.srt" \ | |
-o "$dest/$1.vtt" \ | |
'https://atelier.u-sub.net/srt2vtt/' |
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gi *.srt | %{ curl --form "subrip_file=@$($_.Name)" -o ($_.Name -replace 'srt$','vtt') 'https://atelier.u-sub.net/srt2vtt/' }
MP4Box -add x_1.m4v -new x.mp4; MP4Box -add x_2.acc x.mp4