Creates a video from a folder of images using ffmpeg, with an optional frame rate parameter

New-VideoFromImages.ps1

function New-VideoFromImages {
    param (
        [string]$InputFolder,
        [string]$OutputFile,
        [int]$FrameRate = 30
    )
    $cmd = "ffmpeg -framerate $FrameRate -pattern_type glob -i '$InputFolder\*.png' -vf `"scale=1280:-1:flags=lanczos`" -c:v libx264 -profile:v high -crf 20 -pix_fmt yuv420p -vf `"pad=ceil(iw/2)*2:ceil(ih/2)*2`" `"$OutputFile`""
    Invoke-Expression $cmd
}

This would be invoked like:
.\New-VideoFromImages.ps1 -InputFolder "C:\Images" -OutputFile "output.mp4" -FrameRate 24