Editing and enconding Zoom recordings

[shotcut]

Maintain close to original file size and quality

I recorded a webnar from Zoom Meeting - it’s Powerpoint slides & a small video thumbnail. The mp4 video is 54 minutes long and the file size is 40 MB. The quality of the playback is good - good enough anyway I used Shotcut to add a few small ( less then 100kb ) pictures to the video, but if I leave the settings at default the exported mp4 file is ~ 300MB - almost 10x the original file size. I added the main video to Shotcut first so I believe it’s settings should have been used for export… The…

in summary, do not use hardware encoder and “crf=30, gop=249, B frames=8”