PowerShell: Get Date Taken Value of a Photo or Video

This function only deals with photos. Videos, such as MOV files, have an attribute called ‘media created’ that will be included in this iteration.

function getMediaDateTaken($filePath,$propertyIndex){
    
    if(!$propertyIndex){
        $propertyIndex=switch -regex ($filePath){
            '(JPG|PNG|GIF|BMP|TIFF|JPEG)+$' {12}
            '(MOV|MP4|AVI|MPG|MPEG|WMV|QT|FLV|SWF)+$' {208} # Assuming Windows 10
        }
    }
    try{
        # Alternative method that is less efficient
        #[reflection.assembly]::LoadWithPartialName('System.Drawing')
        #$media = New-Object System.Drawing.Bitmap($mediaFile)
        #$byteArray = $media.GetPropertyItem(36867).Value 
        #$string = [System.Text.Encoding]::ASCII.GetString($byteArray) 
        #$DateTime = [datetime]::ParseExact($string,"yyyy:MM:dd HH:mm:ss`0",$Null)
        #write-host $DateTime
        
        $shell = New-Object -COMObject Shell.Application
        $shellFolder = $shell.Namespace($(split-path $filePath))
        $shellFile = $shellFolder.ParseName($(split-path $filePath -leaf))
        # How to view all attributes: 0..287|%{'{0}: {1}' -f $_,$shellFolder.GetDetailsOf($shellFile,$_)}
        $dateTakenUnicode=$shellFolder.GetDetailsOf($shellFile, $propertyIndex)
        [datetime]$dateTaken=$dateTakenUnicode -replace '[^\d^\:^\w^\/^\s]'

        # The more convoluted method
        #$ascii= [System.Text.Encoding]::ASCII
        #$unicode = [System.Text.Encoding]::UNICODE
        #$dateAscii=([System.Text.Encoding]::Convert($unicode,$ascii,$unicode.GetBytes($dateTakenUnicode))|%{[char]$_}) -join ''
        #$dateTaken=$dateAscii -replace '[^\d^\:^\w^\/^\s]'
        return $dateTaken
    }catch{
        return $false
    }
}

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