Reduce video size

Using FFMPEG
ffmpeg -i input.mp4 -s 320×240 -b 64k -vcodec mpeg1video -acodec copy output.mp4
Change parameters to get tradeoff quality and size
– Resolution via -s 320×240
– Bitrate via -b 64k
Using AVCONV
avconv -i input.mp4 -c:v libx264 -crf 18 -c:a copy output.mp4
– CRF @ https://slhck.info/video/2017/02/24/crf-guide.html
– Play with it to see quality vs size