A small bash script to make ffmpeg recording HLS streams (m3u8).

Record_HLS.sh

#!/bin/bash


for i in {1..168} # week
do

echo "ITERATION $i"
seconds=3600  #hour

# Date format for the recording file name
DATE=`date "+%y%m%d_%H%M%S"`

# start ffmpeg recording
ffmpeg -loglevel warning -hide_banner -re -i http://1.2.3.4/mystream.m3u8 -c copy -bsf:a aac_adtstoasc $DATE.mp4 &

# notification that recording has started
if [ "$(pgrep -P $$ 'ffmpeg')" ]
then echo -e "is recording now"
else echo -e "is not recording!"  exit 42
fi

# check every seconds for $seconds to make sure ffmpeg is still running
START=`date +%s`
while [ $(( $(date +%s) - $seconds )) -lt $START ]; do
	if [ -z "$(pgrep -P $$ 'ffmpeg')" ]
    	then
       		echo -e "is no longer running\n"
       		break
        else
                echo -e "steel running"
  	fi
	sleep 60
done

echo -e "recording finished"

# stop ffmpeg (using this because stopping ffmpeg via -t for duration turned out to be extremely unreliable)
kill $(pgrep -P $$ 'ffmpeg')

done