avifenc. The latest version.
replyAh, I actually wasn't aware that "avifenc" was a separate executable. Thanks for the information. I will definitely do some comparison testing.
replyIt's part of libavif. I've usually compiled it myself.
replyhttps://github.com/aomediacodec/libavif
avifenc supports args like enable-chroma-deltaq. I've used those but recently stopped, and nothing substantial changed.
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