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PAL timecode calculator UDF

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Hello all!

I use Autoit for a while, already made some automation for a TV station's master control room with it. I made a UDF to easily work with PAL timecode and time with milliseconds, convert, add or subtract them. Feel free to use it if you want something like this :)

#Region ;**** Directives created by AutoIt3Wrapper_GUI ****
#AutoIt3Wrapper_Res_Description=PAL Timecode Calculator UDF
#AutoIt3Wrapper_Res_LegalCopyright=horvath.imre@gmail.com
#EndRegion ;**** Directives created by AutoIt3Wrapper_GUI ****
;
; #FUNCTION#
; Name...........:  _tcAdd
; Description....:  Returns addition of two timecodes
; Syntax.........:  _tcAdd($fTc1, fTc2 [, $fFormat = "P"])
;
; Parameters.....:  $fTc1               - First timecode in hh:mm:ss.ff format
;                   $fTc2               - Second timecode in hh:mm:ss.ff format
;                   $fFormat            - Time base -   "P" (default): PAL (25 fps)
;                                                       "M" : millisecond
;
; Return value...:  Sum of the two timecode in the selected format

Func _tcAdd($fTc1, $fTc2, $fFormat = "P", $fHourFormat = 1)
    Local $fMs1 = _tcToMs($fTc1)
    Local $fMs2 = _tcToMs($fTc2)
    Local $fSumMs = $fMs1 + $fMs2
    Return _msToTc($fSumMs, $fFormat, $fHourFormat)
EndFunc

; #FUNCTION#
; Name...........:  _tcsSub
; Description....:  Returns addition of two timecodes
; Syntax.........:  _tcSub($fTc1, fTc2 [, $fFormat = "P"])
;
; Parameters.....:  $fTc1               - First timecode in hh:mm:ss.ff format
;                   $fTc2               - Second timecode in hh:mm:ss.ff format
;                   $fFormat            - Time base -   "P" (default): PAL (25 fps)
;                                                       "M" : millisecond
;
; Return value...:  Subtract $fTc2 from $fTc1 in the source format

Func _tcSub($fTc1, $fTc2, $fFormat = "P")
    Local $fMs1 = _tcToMs($fTc1)
    Local $fMs2 = _tcToMs($fTc2)
    Local $fSumMs = $fMs1 - $fMs2
    If $fSumMs < 0 Then
        $fSumMs = _tcToMs("24:00:00.00") - ($fSumMs * -1)
    EndIf
    Return _msToTc($fSumMs, $fFormat)
EndFunc

; #FUNCTION#
; Name...........:  _tcToMs
; Description....:  Returns timecode converted to total milliseconds
; Syntax.........:  _tcToMs($fTc)
;
; Parameters.....:  $fTc                - Timecode in hh:mm:ss.ff or hh:mm:ss:xxx format, where xxx are milliseconds
;
; Return value...:  Milliseconds as an integer value

Func _tcToMs($fTc)
    Local $fTemp = StringSplit($fTc, ":.")
    Local $fChr = StringLen($fTemp[4])
    Switch $fChr
        Case 2
            Return ($fTemp[4] * 40) + ($fTemp[3] * 1000) + ($fTemp[2] * 60000) + ($fTemp[1] * 3600000)
        Case 3
            Return ($fTemp[4]) + ($fTemp[3] * 1000) + ($fTemp[2] * 60000) + ($fTemp[1] * 3600000)
    EndSwitch
EndFunc

; #FUNCTION#
; Name...........:  _msToTc
; Description....:  Converts total milliseconds to timecode
; Syntax.........:  _msToTc($fIn, $fFormat = "P", $fHourFormat = 1)
;
; Parameters.....:  $fIn                - Time in milliseconds
;                   $fFormat            - Output format     "P": PAL TC (default)
;                                                           "M": hh:mm:ss.xxx where xxx are milliseconds
;                   $fHourFormat        - Hour format       "1": max. value is 23, then starts from 0 (default)
;                                                           "0": hours can be more then 23
;
; Return value...:  Timecode as string in the selected format

Func _msToTc($fIn, $fFormat = "P", $fHourFormat = 1)
    Switch $fFormat
        Case "P"
            Local $fFr = StringFormat("%02i",  (StringRight($fIn, 3) - Mod(StringRight($fIn, 3), 40)) / 40)
        Case "M"
            Local $fFr = StringFormat("%03i",  StringRight($fIn, 3))
    EndSwitch
    $fIn = StringTrimRight($fIn, 3)
    Local $fSec = StringFormat("%02i", Mod($fIn, 60))
    $fIn -= $fSec
    Local $fMinTot = $fIn / 60
    Local $fMin = StringFormat("%02i", Mod($fMinTot, 60))
    $fIn -= $fMin*60
    Local $fHourTot = $fIn / 60 / 60
    Switch $fHourFormat
        Case 1
            $fHour = StringFormat("%02i", Mod($fHourTot, 24))
        Case 0
            $fHour = StringFormat("%02i", $fHourTot)
    EndSwitch
    Return($fHour & ":" & $fMin & ":" & $fSec & "." & $fFr)
EndFunc

; #FUNCTION#
; Name...........:  _tcFormatChange
; Description....:  Toggle TC format
; Syntax.........:  _tcFormatChange($fTc)
;
; Parameters.....:  $fTc                - Timecode in hh:mm:ss.ff or hh:mm:ss:xxx format, where xxx are milliseconds
;
; Return value...:  PAL timecode or time with milliseconds as string, depends on input

Func _tcFormatChange($fTc)
    Local $fTemp = StringSplit($fTc, ":.")
    Local $fChr = StringLen($fTemp[4])
    Switch $fChr
        Case 2
            Return $fTemp[1]&":"&$fTemp[2]&":"&$fTemp[3]&"."&StringFormat("%03i", $fTemp[4]*40)
        Case 3
            Return $fTemp[1]&":"&$fTemp[2]&":"&$fTemp[3]&"."&StringFormat("%02i", ($fTemp[4]-Mod($fTemp[4], 40))/40)
    EndSwitch
EndFunc

And the example script:

#include<_PAL_TC_Calc.au3>

$palTC1 = "00:01:12.20"
$palTC2 = "23:59:50.02"
$msTC1 = "00:01:12.800"
$msTC2 = "23:59:50.120"

MsgBox(0, "1", _tcAdd($palTC1, $palTC2));           Adds $palTC1 to $palTC2, turns hour back to 0 after 23, returns PAL TC format
MsgBox(0, "2", _tcAdd($palTC1, $palTC2, "M"));      Adds $palTC1 to $palTC2, turns hour back to 0 after 23, returns time with milliseconds format
MsgBox(0, "3", _tcAdd($palTC1, $palTC2, "M", 0));   Adds $palTC1 to $palTC2, hours can be infinite, returns time with milliseconds format
MsgBox(0, "4", _tcAdd($msTC1, $msTC2));             Adds $palTC1 to $palTC2, turns hour back to 0 after 23, returns PAL TC format
MsgBox(0, "5", _tcAdd($msTC1, $msTC2, "M"));        Adds $palTC1 to $palTC2, turns hour back to 0 after 23, returns time with milliseconds format
MsgBox(0, "6", _tcAdd($msTC1, $msTC2, "M", 0));     Adds $palTC1 to $palTC2, hours can be infinite, returns time with milliseconds format

MsgBox(0, "7", _tcSub($palTC2, $palTC1));           Subtract $palTC1 from $palTC2, returns PAL TC format
MsgBox(0, "8", _tcSub($palTC2, $palTC1, "M"));      Subtract $palTC1 from $palTC2, time with milliseconds format
MsgBox(0, "9", _tcSub($msTC1, $msTC2));             Subtract $palTC1 from $palTC2, returns PAL TC format - when hits zero, counts back from 24:00:00.00
MsgBox(0, "10", _tcSub($msTC1, $msTC2, "M"));       Subtract $palTC1 from $palTC2, time with milliseconds format - when hits zero, counts back from 24:00:00.000

MsgBox(0, "11", _tcFormatChange($palTC2));          Convert PAL TC to time with milliseconds and back
MsgBox(0, "12", _tcFormatChange($msTC2));           Convert PAL TC to time with milliseconds and back

 

TC_CALC_example.au3

_PAL_TC_Calc.au3

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Thanks for posting your UDF.
If you want to make them better start with using this:
 

#Tidy_Parameters=/sort_funcs /reel
#AutoIt3Wrapper_Au3Check_Parameters=-d -w 1 -w 2 -w 3 -w- 4 -w 5 -w 6 -w 7

And read about #include directive, as in non standalone Include file it should be used like this:

#include "_PAL_TC_Calc.au3"

 


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Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind. 

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Signature last update: 2019-10-01

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