Tests: Add test for webp with color index transform and alpha_used=false

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This just works at the moment after e19892a099, but if we ever do
the FIXME in ColorIndexingTransform::transform(), this test will
remind us to think of this case there too.

catdog-alert-13-alpha-used-false.webp is identical to
catdog-alert-13.web but with the byte at offset 0x2a changed from
0x10 to 0x00  -- that is, the bit in the VP8L header that stores
`is_alpha_used` is cleared.

See the commit message of e19892a099 for more information.

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Nico Weber 2023-06-19 21:07:17 -04:00 • committed by Andreas Kling

parent 9f24c1b34c

commit da48238fbd

2 changed files with 3 additions and 0 deletions

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