PowerShell to start recording on multiple Blackmagic HyperDeck devices

RecordHyperDecks.ps1

# record on multiple HyperDecks
$HyperDecks = @('10.0.0.34','10.0.0.35','10.0.0.36','10.0.0.37')
$fileName = 'Recording' + (Get-Date).tostring("dd_MM_yyyy_hh_mm")
$sb = {
    param ([string] $HyperDeckIP, [string] $HDcommand)
    try {
        	$socket = new-object System.Net.Sockets.TcpClient($HyperDeckIP, 9993)
	        $stream = $socket.GetStream() 
            $writer = new-object System.IO.StreamWriter($stream)

	        $buffer = new-object System.Byte[] 1024
	        $encoding = new-object System.Text.AsciiEncoding
            $writer.WriteLine('remote: override: true') 
            $writer.Flush()
            #Start-Sleep -m 50
            $writer.WriteLine($HDcommand)
            $writer.Flush()
            $writer.Close()

            while($stream.DataAvailable) {
			$read = $stream.Read($buffer, 0, 1024)
			$HyperDeckInfo = ($encoding.GetString($buffer, 0, $read))
            }
            $stream.Close()
		   
        return $HyperDeckInfo
    } catch {
        throw 'Failed to process HyperDeck {0}. The error was "{1}".' -f $HyperDeck, $_
    }
}

# Loop through each HyperDeck
$jobs = @()
foreach($HyperDeck in $HyperDecks) {
    $jobs += Start-Job -ScriptBlock $sb -ArgumentList $HyperDeck, 'record: name:' + $fileName

}

# Wait for remaining.
Wait-Job -Job $jobs > $null

do {$strResponse = Read-Host "q when you want to stop recording?"
}
until ($strResponse -eq 'q')
foreach($HyperDeck in $HyperDecks) {
    $jobs += Start-Job -ScriptBlock $sb -ArgumentList $HyperDeck, 'stop'

}
# Check for failed jobs.
$failed = @($jobs | ? {$_.State -eq 'Failed'})
if ($failed.Count -gt 0) {
    $failed | % {
        $_.ChildJobs[0].JobStateInfo.Reason.Message
    }
}