因為要上傳影片到 Youtube
必須將影片分割成數個不超過10分鐘長度的小片段
可是在 Mac OS X 下好像沒有好用的軟體
可又不想用 Quicktime 來一個一個手動分割
所以參考了一些資料後
寫了一個 AppleScript
File name : splite.scpt

(*
    Splite Quicktime Movie into equally sized for Youtube
    YF Chen
    yfc@yfchen.com
*)

    set sourceFile to choose file with prompt "choose video file as source"
    set theFolder to (choose folder with prompt "Choose a folder for the slices:") as text

    tell application "Finder"
        my splitteVideo(sourceFile, theFolder)
    end tell

    on splitteVideo(sourceFile, theFolder)
    
    tell application "QuickTime Player 7"
        activate
        try
            open sourceFile
            on error
            display dialog "Open a movie first" buttons ["OK"] with title "Error"
            return
        end try

        -- get active movie
        set sourceDoc to document 1
        set theDuration to duration of sourceDoc
        set theTitle to name of sourceDoc
        set DurOverlap to 2 -- 2sec overlaping
        set DurScal to (90 * 1000)

        -- calculate segments
        set DurCut to (9 * 60) -- 9 min
        set DurDoc to (duration of sourceDoc) / DurScal
        set NumOfSeg to DurDoc div DurCut

        -- loop each segment
        repeat with i from 0 to NumOfSeg
            -- set segment selection
            set durStart to (i * DurCut) * DurScal
            set durEnd to ((i + 1) * DurCut + DurOverlap) * DurScal
            if durEnd > theDuration then
                set durEnd to theDuration
            end if
            set selection start of sourceDoc to durStart
            set selection end of sourceDoc to durEnd
            -- copy selection into new movie
            copy sourceDoc
            set newdoc to make new document
            paste newdoc
            set theSlice to i as integer as string
            set theFile to (theTitle & "_" & theSlice) & ".mov" as string
            set theFile_full to (theFolder & theFile) as string
            try
                save self contained newdoc in theFile_full
            end try
            close document theFile
        end repeat

        close sourceDoc
        quit

    end tell

end splitteVideo