Question

我的iPad应用程序让用户可以观看几百个视频。目前，iPad应用程序将它们指向MP4文件。但是，我想将它们指向QuickTime参考电影。（如果用户通过3G与wifi连接，这允许应用程序发送视频的低比特率版本。）

现在，我通过转到File - ＆gt;在QuickTime中创建各种版本和参考文件。导出到Web。但是，这个过程（1）只允许我一次执行一个文件，（2）生成许多无用的东西，如HTML和JavaScript。

如何自动化流程？有没有人知道现有的脚本/工具来完成这项工作？我相信其他开发者之前必须这样做。

Answer 1

我写了（并在网上的其他内容拼凑而成）这个AppleScript来完成这项工作：

--property exportFolder : (path to documents folder as Unicode text) & "Your Folder:"
property QTExportPath : (path to movies folder from user domain)
property completedFolderName : "completion" -- this folder must already exist
property referenceFiles : {}
property encodeCount : 0

on run
    choose folder with prompt "Choose folder with video files:" -- with multiple selections allowed
    open (result)
end run

on open droppedItems

    tell application "Finder"
        set allFiles to every file of entire contents of droppedItems as alias list
    end tell

    -- Error checking
    repeat with testFile in allFiles

        set myChars to characters of basename(testFile)

        if count_matches(myChars, ".") > 1 then
            display dialog "ERROR: The file " & basename(testFile) & " has too many periods."
            return
        end if

    end repeat

    -- Made it past error checking, let's get started

    tell application "QuickTime Player"
        activate
        close every window
    end tell

    repeat with thisItem in allFiles

        tell application "QuickTime Player"
            close every window

            open thisItem as alias

        end tell

        activate application "QuickTime Player"
        tell application "System Events"
            tell process "QuickTime Player"
                keystroke "E" using command down
                repeat until exists sheet 1 of window 1
                    delay 0.2
                end repeat
                click button "Export" of sheet 1 of window 1
            end tell
        end tell

        tell application "Finder"
            set fileExt to name extension of thisItem
        end tell

        set fileBaseName to basename(thisItem)

        set lengthWithoutExtension to (count of fileBaseName) - (count of fileExt) - 1

        set fileBaseNameWithoutExtension to text 1 thru lengthWithoutExtension of fileBaseName

        set end of referenceFiles to fileBaseNameWithoutExtension

        repeat until startedExporting(fileBaseNameWithoutExtension)

            -- wait for this file to start exporting before beginning another

        end repeat


    end repeat

    repeat until doneExporting(referenceFiles)

        -- wait for exporting to finish

    end repeat

    cleanUpGarbage(referenceFiles)

    tell application "QuickTime Player"
        activate
        close every window
        quit
    end tell

    display alert "finished exporting"

end open

on basename(thePath) -- Returns basename of alias

    set thePOSIXPath to the POSIX path of thePath

    if thePOSIXPath ends with "/" then
        set nameIndex to -2
    else
        set nameIndex to -1
    end if

    set ASTID to AppleScript's text item delimiters
    set AppleScript's text item delimiters to "/"
    set thePOSIXPath to text item nameIndex of thePOSIXPath
    set AppleScript's text item delimiters to ASTID
    return thePOSIXPath
end basename

on startedExporting(fileBaseNameWithoutExtension) -- Checks if QuickTime began exporting a file

    set moviesPath to QTExportPath as text
    set fileToTest to ((the POSIX path of moviesPath) & fileBaseNameWithoutExtension & "/Resources/" & fileBaseNameWithoutExtension & ".mov")
    if FileExists(fileToTest) then
        -- do nothing
    else
        return false
    end if

end startedExporting

on doneExporting(referenceFiles) -- Checks if QuickTime is done exporting everything

    set moviesPath to QTExportPath as text
    repeat with thisItem in referenceFiles
        set fileToTest to ((the POSIX path of moviesPath) & thisItem & "/Resources/" & thisItem & ".mov")
        if FileExists(fileToTest) then
            -- do nothing
        else
            return false
        end if
    end repeat
end doneExporting

on FileExists(theFile) -- (String) as Boolean
    tell application "System Events"
        if exists file theFile then
            return true
        else
            if exists folder theFile then
                return true
            else
                return false
            end if
        end if
    end tell
end FileExists

on cleanUpGarbage(referenceFiles)

    set moviesPath to QTExportPath as text
    set donePath to (QTExportPath as text) & completedFolderName as text
    set POSIXMovies to the POSIX path of moviesPath
    set POSIXDone to the POSIX path of donePath

    repeat with thisItem in referenceFiles
        set directoryToClean to (POSIXMovies & thisItem & "/")
        set m4vcommand to "find '" & directoryToClean & "' -type f -iname '*m4v' -exec cp -n {} '" & POSIXDone & "' \\;"
        set movcommand to "find '" & directoryToClean & "' -type f -iname '*mov' -exec cp -n {} '" & POSIXDone & "' \\;"


        do shell script m4vcommand
        do shell script movcommand

        set thefolder to POSIX file directoryToClean

        tell application "Finder"
            delete thefolder
        end tell

    end repeat
end cleanUpGarbage

on count_matches(this_list, this_item)
    set the match_counter to 0
    repeat with i from 1 to the count of this_list
        if item i of this_list is this_item then ¬
            set the match_counter to the match_counter + 1
    end repeat
    return the match_counter
end count_matches

它假设：

您开始的文件夹只有电影文件，并且您想要转换所有这些文件。
您已经通过手动导出到网络

它将一次导出一个。如果要同时转换多个，请修改startedExporting方法以仅检查文件夹而不是.mov文件（.mov文件是最后生成的文件。）

为iOS自动编码视频（以及创建参考电影）

1 个答案: