#!/bin/sh

FRAMES=30
FPS=30

for WIDTH in 640 320 176 160; do
    [ -d "$WIDTH" ] || mkdir "$WIDTH"
    mplayer tv:/// -tv driver=v4l2:width=$WIDTH -fps $FPS -vo pnm:outdir="$WIDTH" -frames $FRAMES
    EXITCODE=$?
    echo "Capturing with width=$WIDTH finished with exitcode $EXITCODE"
    sleep 1
done