#/bin/bash
echo extracting frames
ffmpeg -loglevel 24 -stats -i input.mp4 /tmp/$$.out%05d.png 
echo done, processing frames
ls /tmp/$$.out*.png | while read f;do
dta=$(zbarimg -q --raw --nodbus ${f})
chunkNum=${dta/|*/}
chunkData=${dta/*|/}
echo from ${f} received: ${chunkNum} 
echo $chunkData | base64 -d > chunks/${chunkNum}.chunk
done