auto-restart FFMPEG when it stops sending frames to youtube

ffmpeg.sh

#!/bin/sh

sleep 5
ffmpeg -re -f mjpeg -r 10 -i "http://localhost/?action=stream" -ar 44100 -ac 2 -acodec pcm_s16le -f s16le -ac 2 -i /dev/zero -acodec aac -ab 1k -strict experimental -s 640x360 -vcodec h264 -pix_fmt yuv420p -g 20 -vb 500k -preset ultrafast -crf 31 -r 10 -f flv "rtmp://a.rtmp.youtube.com/live2/xxxx-xxxx-xxxx-xxxx" 2> /home/pi/ffmpeg.log

ytchecker.sh

#!/bin/sh

sleep 10
while true
do
    frameA=$(tail /home/pi/ffmpeg.log -n 1 | sed -nr 's/.*frame=(.*)fps.*/\1/p')
    echo "$frameA"
    sleep 5
    frameB=$(tail /home/pi/ffmpeg.log -n 1 | sed -nr 's/.*frame=(.*)fps.*/\1/p')
    echo "$frameB"

    if [ "$frameA" = "$frameB" ]
    then
        echo "Stream has hung"
	printf "%s - Stream has hung\n" "$(date)" >> stream.log
        pkill ffmpeg
        echo "killed ffmpeg..."
	printf "%s - Killed ffmpeg...\n" "$(date)" >> stream.log
        echo "Waiting 5 secs"
        sleep 5
        bash /home/pi/ffmpeg.sh &
        echo "started ffpmeg.."
	printf "%s - Started ffmpeg..\n" "$(date)" >> stream.log
        echo "Waiting 15 secs"
        sleep 15
    else 
        echo "Stream looks ok."
    fi

    sleep 2
done