> I could be completely wrong but my gut is telling me that MPEG1 is basically independent, slightly-modified JPEG frames.
Not that simple, but not that far off.
Basically MPEG1 has key-frames (“JPEG” frames) and (forward) delta-frames (diffs).
From my understanding H264 has many improvements, including reverse delta-frames.
My guess is that disabling those in the encoder will improve real-time capabilities.