I’m aware. Not always feasible. For example, had to add a custom video capture solution that captures the last 30 seconds of a process for crash handling purposes.

You most definitely need to do add that much comments explaining the mp4 box format along with the box “hierarchy” of what is being written. Add to that MFT (h264 encode) code…

Basically, if anything, the comments are for me for when I look back at that code.