The AVIF times given before, 25 seconds with an alpha channel and 15
without, came from quality 85 and 100 only. Measured again with the
runtime image's libvips on one thread at qualities 1 to 100, 4096x4096,
8192x2048 and 2048x8192 random pixels take up to about 34 seconds with
an alpha channel and 22 without, the slowest at quality 90 to 99. That
is under 40, so the limit stays at 16,777,216 pixels. The doc comments,
README.md and TODO.md now give those times. WebP and JPEG XL, measured
the same way, stay within the times already given, which now say they
hold at any quality. The TODO.md entry moves to the top of Completed
Steps.
Model: opus-5-5
WebP is saved at effort 2 and JPEG XL at effort 4, and an AVIF output of
more than 16,777,216 pixels is refused with 400 before anything is
decoded, as AVIF is already at the lowest effort govips can set. With one
libvips thread, 8192x8192 random pixels with an alpha channel take up to
about 23 seconds as WebP and 27 as JPEG XL, and 4096x4096 as AVIF about
25. Resizing with fit=cover already decodes the input, so the output's
dimensions are now worked out before resizing, in outputDimensions.
Reading the input moves into readInput to keep Process within the
linter's limits.
Model: opus-5-5
sneak