iPad中的OPlayer只支持srt格式的字幕，而動畫一般使用的是ass/ssa格式的字幕，所以需要將ass/ssa批量轉(zhuǎn)換srt。
Google了一下，在《ass2srt[ass/ssa批量轉(zhuǎn)換srt]》中找到一個ass2srt.wsf腳本，內(nèi)容如下：
job id="ass2srt">
script language="JScript">
cInput="unicode"; // You can find them from:
cOutput="utf-8"; // HKEY_CLASSES_ROOT\MIME\Database\Charset
function rrr(){
re = /Dialogue: [^,.]*[0-9]*,([1-9]?[0-9]*:[0-9]*:[0-9]*.[0-9]*),([1-9]?[0-9]*:[0-9]*:[0-9]*.[0-9]*),[^,.]*,[^,.]*,[0-9]*,[0-9]*,[0-9]*,[^,.]*,(.*)/gi;
rv = ss.match(re);
t1 = RegExp.$1;
t2 = RegExp.$2;
t3 = RegExp.$3;
rg = /\{[^}.]*(\\pos\([0-9]*,[0-9]*\))[^}.]*}/gi;
t3 = t3.replace(rg,"$1" + "}");
rg =/\{[^}.]*}/gi;
t3 = t3.replace(rg,"");
rg =/(\\pos\([0-9]*,[0-9]*\)})/gi;
t3 = t3.replace(rg,"{" + "$1");
}
/Script>
script language="VBScript">
set ad=CreateObject("adodb.stream")
set af=CreateObject("adodb.stream")
set ass=CreateObject("adodb.stream")
ad.open
af.open
ass.open
ad.Charset=cInput
af.Charset=cOutput
ass.Charset=cOutput
Set objArgs = WScript.Arguments
For I = 0 to objArgs.Count - 1
ad.LoadFromFile(objArgs(I))
z=0
gg=left(objArgs(I),len(objArgs(I))-3)"srt"
Do While ad.eos > True
ss =ad.ReadText(-2)
if left(ss,8)="Dialogue" then
ss=replace(ss,",,",",d,")
rrr
t3=replace(t3,"\n",vbcrlf)
t3=replace(t3,"\N",vbcrlf)
z=z+1
af.writetext z,1
af.writetext t1 " --> " t2,1
af.writetext t3 vbcrlf vbcrlf
else
ass.writetext ss,1
end if
Loop
af.savetofile gg,2
ass.savetofile gg".style",2
Next
if i=0 then
msgbox "Please drag files to me!",,"Error!"
else
msgbox "Converted "i" file(s).",,"All Over!"
end if
/Script>
/job>
Windows 腳本 (.wsf) 文件是一個包含可擴展標(biāo)記語言(XML)代碼的文本文檔，它結(jié)合了若干功能，提高了腳本編程的靈活性。由于 Windows 腳本文件并不局限于特定的引擎，它們能夠包含所有遵循 ActiveX(R)規(guī)范的腳本引擎的腳本。
上面的腳本文件同時包含了JScript和VBScript的代碼。問題在于，有這個必要么？單純用JScript或者VBScript都可以實現(xiàn)，為什么要混用不同的語言呢？JScript在代碼中的作用僅僅是正則表達式而已，一個合理的推斷是作者不會VBScript的正則表達式，或者嫌VBScript的正則表達式太麻煩。就算撇開語言混雜不說，上面代碼的風(fēng)格實在是不敢恭維。
下面是我寫的ass2srt.vbs，也許比上面的代碼好一點點罷。
Option Explicit
Const Encoding = "unicode" 'assume unicode
'Author: Demon
'Website: http://demon.tw
'Date: 2012/6/16
Dim shell, folder, fso, ext, i, args
Set shell = CreateObject("Shell.Application")
Set fso = CreateObject("scripting.filesystemobject")
Set args = WScript.Arguments
If args.Count = 0 Then
Set folder = shell.BrowseForFolder(0, "請選擇ASS字幕所在的文件夾", 1)
If folder Is Nothing Then WScript.Quit
For Each i In fso.GetFolder(folder.Self.Path).Files
ext = LCase(fso.GetExtensionName(i.Path))
If ext = "ass" Or ext = "ssa" Then
ASS2SRT i.Path, Encoding
End If
Next
Else
For i = 0 To args.Count - 1
ASS2SRT args(i), Encoding
Next
End If
MsgBox CInt(i) " file(s) Converted!", vbInformation
Function ASS2SRT(path, charset)
Const adTypeText = 2
Const adReadLine = -2
Const adSaveCreateOverWrite = 2
Dim ass, srt, re, str, arr, s, e, t, i
Set ass = CreateObject("ADODB.Stream")
Set srt = CreateObject("ADODB.Stream")
Set re = New RegExp
re.Global = True
re.IgnoreCase = True
re.Pattern = "\{.*?\}"
ass.Type = adTypeText
ass.Charset = charset
ass.Open
ass.LoadFromFile path
srt.Type = adTypeText
srt.Charset = "utf-8"
srt.Open
i = 0
Do Until ass.EOS
str = ass.ReadText(adReadLine)
If Left(str, 8) = "Dialogue" Then
i = i + 1
arr = Split(str, ",", 10)
s = "0" arr(1) "0" 'Start time
e = "0" arr(2) "0" 'End time
t = arr(9) 'Text
s = Replace(s, ".", ",")
e = Replace(e, ".", ",")
t = re.Replace(t, "")
t = Replace(t, "\n", vbCrLf)
t = Replace(t, "\N", vbCrLf)
srt.WriteText i vbCrLf
srt.WriteText s " --> " e vbCrLf
srt.WriteText t vbCrLf vbCrLf
End If
Loop
path = Left(path, Len(path) - 3) "srt"
srt.SaveToFile path, adSaveCreateOverWrite
End Function
把上面代碼保存為ass2srt.vbs，然后將需要轉(zhuǎn)換的ass/ssa字幕拖動到ass2srt.vbs腳本上即可。如果需要批量轉(zhuǎn)換的ass/ssa字幕比較多，可以先把它們放到同一個文件夾里，然后直接雙擊運行ass2srt.vbs，選擇字幕所在的文件夾即可。
原文：http://demon.tw/my-work/ass2srt.html
