So in short what tool, or command, on linux or windows, can I use to convert this yuv420 to any losseless format from list bellow I saw there are different types of yuv420, but raspi documentation does not give whole lot information on it: I tried converting and playing it but I got passing green lines of different saturation on black background. The software I am using is accepts a long list of video and image files, but not yuv. As far as I care it even doesn't even have to be a video, series of TIFFs, FITS, SEQ are fine for me. I learned that ffmpeg can convert it to other formats. The latter is interesting to me, but unfortunately I am having trouble decoding it.

Libcamera-vid can also record in mjpeg, and uncompressed and unformatted YUV420. So compression is fine, but lossy is not. I wouldn't mind that if I do not loose any frames(video slowed down), but on the other hand I believe that recording in h264 would result in losses? And it is necessary for my purposes that I do not loose any bit of real data. Using libcamera-vid I can record h264 upto 4.2 but I saw h264 has limitation of 60fps. I am using Raspberrypi HiQ camera to capture High Speed(120fps) videos of planets for astronomy purposes.

H264 yuv420p