With what parameters to start ffmpeg if I want to record a video for later upload to youtube?

Question

YouTube

As you know, screen recording (x11grab) is possible with ffmpeg. I want to make a screencast, the subsequent placement on the youtube channel.
I heard that it is advised to first make a lossless recording, and then encode using one or another codec. I also heard that some craftsmen encode video in two passes: there is a presentation, what is it for, but is it really necessary? Interested in: how to record a video using ffmpeg for later upload to a youtube channel?
It is worth considering: the video will not have many changes from frame to frame (the process of developing the application will be shown).

Answer 1

Lossless recording is needed to ensure continuous recording in real time so that there are no lost frames. You can write in MOV.
Two-pass encoding is not needed, since you upload to YouTube anyway.
Sometimes it's faster to upload a weakly compressed gigabyte to YouTube than to convert it first into 50..100 megabytes and only then upload it to YouTube.
You can also use the webm codec - nienhueser.de/blog/?p=469