#! /bin/sh

if [ -z "$2" ]; then
   echo "Usage: $0 width height [fps [bpp]]"
   exit 1
fi

width="$1"
height="$2"
if [ -z "$3" ]; then
   fps=25
else
   fps="$3"
fi
if [ -z "$4" ]; then
   bpp=0.15
else
   bpp="$4"
fi

echo bitrate = "$width * $height * $fps * $bpp / 1000" = `expr $width * $height * $fps * $bpp / 1000`