Andrew, Will check these in. cinepak changes make it run twice as fast and the mediainfo is the same except for sizes. Results from running before and after: Old: 2713 frames in 777.079 seconds / size = 34935959 New: 2713 frames in 337.795 seconds / size = 36845828 Since the new is bigger in size, it is probably better. I ran ydiff on the 2 files and although they were not a perfect match, I could not see any anomalies and they looked the same to me. I basically added
max_extra_cb_iterations=0 min_strips=3
this speedups encoder but quality is lower (not sure how much, was too inpatient to wait for 1 min clip encode at 352*144 25 fps! with those parameters ffmpeg encodes at nearly 3 fps, yay! In theory one can try to set up renderfarm + number parallel ffmpeg encoders, because encoder is single threaded - but I haven't tested this)