pack-vid/pack-set

#!/bin/sh
INFILE="$1"
COMMON="--quality=0.67 --exposure=-3 --peak=80"
SMALL="$COMMON --size=4m --preset=slow"
LARGE="$COMMON --size=25m --preset=slow"
(
    pack-vid $SMALL "$INFILE" "${INFILE%.mp4}-letterbox-small.mp4"
    pack-vid $LARGE "$INFILE" "${INFILE%.mp4}-letterbox-large.mp4"
) &
(
    pack-vid $SMALL --crop "$INFILE" "${INFILE%.mp4}-crop-small.mp4"
    pack-vid $LARGE --crop "$INFILE" "${INFILE%.mp4}-crop-large.mp4"
) &
wait