BurnTimecode.ps1

<#
    Burns a timecode into a video using ffmpeg.
#>

param(
    $Path,
    $OutFile,
    $Rate
)

if ($null -eq $Rate) {
    "No Rate provided, defaulting to NTSC (30000/1001)"
    $Rate = "30000/1001"
}

$dropFrameRates = "30000/1001", "60000/1001", "29.97", "59.94", "ntsc"

$timecodePattern = if ($Rate -in $dropFrameRates) { "00\:00\:00;00" } else { "00\:00\:00\:00" }

$filter = @"
drawtext="timecode='${timecodePattern}':rate=${Rate}:fontsize=72:fontcolor='white':boxcolor=0x000000AA:box=1:x=10:y=10"
"@

ffmpeg -y -i $Path -vf $filter $OutFile