>AVIF can absolutely do lossless RGB Bad formulation, the bit that followed those words does detail the "not really" part: compression just takes a massive hit

>AVIF can absolutely do lossless RGB Bad formulation, the bit that followed those words does detail the "not really" part: compression just takes a massive hit compared to YUV; at least when I tried it last time with libaom (https://news.ycombinator.com/item?id=48359211 https://news.ycombinator.com/item?id=48359211) > There’s nothing about webp (or VP8 in general) that makes the format inherently bias toward smoothing Now you're the one being funny. libvpx is famous for its strong PSNR tuning thus preference of blurring over blocking. Even libaom has the same problem. > libaom (the production encoder) isn’t slow at all, especially for image encoding Well, that's true that for image encoding, it's alright in performance. Last time I checked, lossless encoding was still way too slow with a decently strong preset (cf first link). > libaom has psy optimizations "Some". Since you're one of the people that worked on the psy features now upstreamed into SVT-AV1 (many thanks for that), you know much better than me how libaom has really nothing to match --tune 0. My bad for using the word "port", but clearly a lot of them like the better aq-modes were conceptualized there. > AVIF has had progressive encoding/decoding support for years. Completely forgot that, thanks for the correction. Maybe I was flaming a bit too much and maybe you're strongly involved in the AV1 world, but "trolling" is a bit much. I followed AVIF since libavif was started by Joe Drago and was really interested in the idea of using a video format's I-frame format to get hwdec/dav1d "for free" and the potential gains from grain synthesis, but the AV1 ecosystem having been so focused on VoD/PSNR and only now starting to be viable for transparency, the lossless/grayscale story being what it is has somewhat made a JXL champion out of me.