Yeah, the structs within libavif store width and height as uint32_t (which is better than libjpeg and libpng which use uint16_t, but both of those old format li

Yeah, the structs within libavif store width and height as uint32_t (which is better than libjpeg and libpng which use uint16_t, but both of those old format libs seem happy to save > 20,000 dimensions in my testing, as does libheif, and all the other libs produce nice helpful error strings when the size is too large), so the format itself is fine, libavif just currently seems incapable of encoding images larger than film "8k". I couldn't even get it to save at the size of 8192 x 5464, which is the R5's full resolution.