Can't figure out my error - Variable used without being declared

[leke]

Hi, My .ts ripping app works the first time it's executed, but then fails for some reason with an error. I can't figure out why I'm getting this message though. The variables used on line 55 should be declared. $TsPath is declared as a Global before the error is called. 

This is line 55...

ElseIf $TsPath == 2 Then ; Cancelled

 The error and source code (also attached)...

Line 55

Error: Variable used without being declared. 

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; ffmpeg info:
; also: http://forum.videohelp.com/threads/289790-mencoder-ts-to-avi-%28x264%29-with-multiple-audio-stream
; http://linuxers.org/tutorial/ffmpeg-basics-beginners
; ffmpeg -i test.ts -t 10 -b 1000k -vcodec libx264 output.mp4

; MsgBox(0, "Debug", @ScriptDir)


$ini_ffmpeg_location = IniRead("ts-ripper-config.ini", "Settings", "ffmpeg location", "NotFound") ; Get path of ffmpeg.exe from config file
$ini_default_path = IniRead("ts-ripper-config.ini", "Settings", "Default location", @ScriptDir) ; Read last user defined location from the db.


If FileExists($ini_ffmpeg_location & "\ffmpeg.exe") Then
    Call("PrepareRip")
Else
    Call("LocateFfmpeg")
EndIf


Func LocateFfmpeg() ; locates the ffmpeg.exe if not found.
    Local $LocateFfmpegQuestion = MsgBox(1, "Whoops!", "ffmpeg.exe was not found." & @CRLF & @CRLF & "Click Ok to search for ffmpeg.exe")
    Switch $LocateFfmpegQuestion
        Case 1; Ok
            Global $WhereIsFfmpeg = FileOpenDialog("Locate your ffmpeg.exe", @ScriptDir & "\", "Exe (*.exe)", 1 + 4)
            If @error Then
                MsgBox(0, "!", "No File chosen - I quit!")
                Exit
            ElseIf $WhereIsFfmpeg == 2 Then ; Cancelled
                MsgBox(0, "!", "No File chosen - I quit!")
                Exit
            Else
                $FfmpegFolder = StringLeft($WhereIsFfmpeg, StringInStr($WhereIsFfmpeg, '\', 0, -1) - 1) ; copy the folder only from $TsPath
                IniWrite(@ScriptDir & "\ts-ripper-config.ini", "Settings", "ffmpeg location", $FfmpegFolder) ; Write last user defined folder location of ffmpeg.exe the db.
                If FileExists($FfmpegFolder & "\ffmpeg.exe") Then
                    Call("PrepareRip")
                Else
                    Call("LocateFfmpeg")
                EndIf
            EndIf
        Case 2; Cancel -> Exit program
            MsgBox(0, "!", "No File chosen - I quit!")
            Exit
    EndSwitch
EndFunc

Func PrepareRip() ; locate the file to rip.
    Local $PrepareRipQuestion = MsgBox(1, "Step 1:", "Select your .ts video file")
    Switch $PrepareRipQuestion
        Case 1; Ok
            Global $TsPath = FileOpenDialog("Locate your .ts file", $ini_default_path & "\", "Video (*.ts)", 1 + 4)
            If @error Then
                MsgBox(0, "!", "No File chosen - I quit!")
                Exit
            ElseIf $TsPath == 2 Then ; Cancelled
                MsgBox(0, "!", "No File chosen - I quit!")
                Exit
            Else
                $TsFolder = StringLeft($TsPath, StringInStr($TsPath, '\', 0, -1) - 1) ; copy the folder only from $TsPath
                IniWrite(@ScriptDir & "\ts-ripper-config.ini", "Settings", "Default location", $TsFolder) ; Write last user defined location from the db.
                Call("RipIt")
            EndIf
        Case 2; Cancel -> Exit program
            MsgBox(0, "!", "No File(s) chosen - I quit!")
            Exit
    EndSwitch
EndFunc

Func RipIt()
    ; Creates rip in same folder as original.
    $ffmpeg_command = $WhereIsFfmpeg & " -i " & $TsPath & " -b:v 1200k -vcodec libx264 " & $TsPath & ".mp4" ; The ffmpeg rip settings.
    Run($ffmpeg_command, "", @SW_MAXIMIZE) ; the ffmpeg command.
EndFunc

 Does anyone know how to fix this? 

Thanks

Source code.au3

Edited October 10, 2015 by leke

[water]

Do not define a global variable in a function. Define it at the top of the script.
If the function where the global variable is being defined never gets called but the variable gets referenced then you see the error you get.

[leke]

Do not define a global variable in a function. Define it at the top of the script.
If the function where the global variable is being defined never gets called but the variable gets referenced then you see the error you get.

Ok, thanks. I passed the variables as function arguments and it seems to work

[water]