Script to encode a bunch of files with SvtAv1EncApp and ffmpeg from command line

Av1SvtEnc.ps1

param(
	[Parameter(Mandatory=$true, ValueFromPipeline=$true, Position=0)]
	[string] $inputPath,
	[int] $sp = 7,
	[int] $crf = 28,
	[int] $fg = 0,
	[switch] $af,
	[switch] $wi
)
if ($af) {$audioOptions = "-af channelmap=channel_layout=5.1"}

#$encodeCommand = "ffmpeg -i `"$inputFile`" -loglevel warning -nostdin -f yuv4mpegpipe -strict -1 -pix_fmt yuv420p10le - | SvtAv1EncApp.exe -i stdin --passes 1 --progress 2 --input-depth 10 --keyint 240 --crf $crf --preset $speed -i stdin -b stdout | ffmpeg -loglevel warning -i - -vn -i `"$inputFile`" -y -c copy -c:a libopus $audioOptions `"$outputFile`""

Get-ChildItem $inputPath | Foreach-Object {
    $inputFile=$_.Name
	$outputFile = $_.BaseName #.Replace(' ','.').Replace('.-.','.').Replace('.h264','').Replace('.H.264','').Replace('.h265','').Replace('.x265','')
	$outputFile += ".AV1.SVT.CRF" + $crf + ".SP" + $sp
	if ($fg -ne 0) {$outputFile += ".FG" + $fg}
	$outputFile += ".Opus.mkv"
	
	if ($inputFile.ToLower().Contains("av1") -or (Test-Path $outputFile)) {
		Write-Host "Skipping: "  $inputFile 
	} else {
		$encodeCommand = "ffmpeg -i `"$inputFile`" -loglevel warning -nostdin -f yuv4mpegpipe -strict -1 -pix_fmt yuv420p10le - | SvtAv1EncApp.exe -i stdin --progress 2 --input-depth 10 --keyint 240 --crf $crf --preset $sp --film-grain $fg -i stdin -b stdout | ffmpeg -loglevel warning -i - -vn -i `"$inputFile`" -y -c copy -c:a libopus $audioOptions `"$outputFile`""
		# --enable-overlays 1  (screws up playback?)
		Write-Host $encodeCommand
		
		if (-not $wi) {
			$Process = Start-Process "cmd.exe" -ArgumentList "/c", $encodeCommand -NoNewWindow -PassThru
			$Process.PriorityClass = [System.Diagnostics.ProcessPriorityClass]::BelowNormal
			Wait-Process -InputObject $Process
		}
		
		Write-Host "Done encoding"
		Sleep 1
	}
}