My project does video recording from a microscope camera, and one experiment can run for days and even weeks. This takes plenty of filespace, so I want as strong a compression as possible. Quality is not a major concern. Currently I use the default 'mp4v' codec with opencv on Python. It works. I tried all codecs Google could find, and surprisingly, only very few worked. And those few that did work were even worse in compression. Where is the limitation? Is it Opencv (4.11.0.86)? Is it FFMPEG (7.1.1)? Is it the distribution (Ubuntu Mate 25.04)? Is it the CPU (AMD Ryzen AI 9 HX 370 w/ Radeon 890M × 24)? Continue reading...