I have FFMPEG reading a live stream and writing to an MP4 file. I would like to modify the FFMPEG command to write to 3 MP4 files simultaneously. This means that instead of generating one file, FFMPEG must generate 3 files simultaneously (essentially the data packets must be read and written in 3 different places on disk). The 3 files are identical, of course.
I agree that there are constraints with disk speed and processor speed, but I would like to be able to do anyway. Do advise!