Encoding Discussion Megathread (ffmpeg, Handbrake, AV1, etc...)

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So I'm not getting the same results that you are. I need some other things to test on and benchmark since animated content is most of what I've done since throwing these in there. I will test with/without tomorrow if I can to check size differences and visual quality. First ep I did tonight looked stellar in 1080p at 342 MB. Normally I would expect an episode to be 400-500+ MB depending on a few factors, so this may be a size reduction but I won't be sure until I play around.

As for b-frames -- my understanding of them is the same. A lower value for -bf reduces the number of frames between subsequent b-frames (i.e., the b-frame interval). However, when reading up on this, I think the documentation might be completely off -- which never happens with ffmpeg. I think the higher values for -bf are the number of b-frames allowed before a subsequent I- or P-frame. Here's a blog that seems to describe this phenomenon, although this doesn't discuss AV1 encoding with b-frames and I have no idea where he got the measurements/visualizations for P, B, and I frames...