;record duration 30s framerate 20fps width 640 height 320 videobitrate 800k
electron . -u http://182.92.9.182:9090/media/hlsPlayer/hlsPlayer.html -d 30 -f 20 -w 640 -h 320 -b 800k test.flv
ffmpeg -i test.flv -vcodec copy -acodec copy test.mp4