vidmod.ps1

# Vidmod by Plasmoxy
# - clip editor for ffmpeg

$cmd = $args[0]
$fname = $args[1]

# cut with reencoding
# vidmod cut source.mp4 0:00 0:04
if ($cmd -eq "cut") {
  $from = $args[2]
  $to = $args[3]
  ffmpeg -i "$fname" -ss "$from" -to "$to" -async 1 "$fname.cut.mp4"
}

# cut without reencoding (can miss keyframes)
# vidmod cut source.mp4 0:00 0:04
if ($cmd -eq "cutc") {
  $from = $args[2]
  $to = $args[3]
  ffmpeg -i "$fname" -ss "$from" -to "$to" -async 1 "$fname.cut.mp4"
}

# downscale by half
# vidmod desize source.mp4
if ($cmd -eq "desize") {
  ffmpeg -i "$fname" -vf "scale=iw/2:ih/2" "$fname.desize.mp4"
}

# reduce bitrate to specified number (units 2M=2 Mbps, 64k = 64kbps)
# vidmod bitrate source.mp4 2M
if ($cmd -eq "bitrate") {
  ffmpeg -i "$fname" -b:v $args[2] "$fname.bitrate.mp4"
}