2033688 - jxl finite animated images should loop the correct number of times

Status: RESOLVED FIXED

(Core :: Graphics: ImageLib, defect)

Comment 1

[Timothy Nikkel (:tnikkel)]

Attachment: Bug 2033688. Finite length animated jxl images should loop the correct number of times. r?saschanaz,#gfx-reviewers

On the ImageDecoder interface repetitionCount being 0 mean one total play through, see https://github.com/w3c/webcodecs/issues/932

On the jpeg xl side, num_loops being 0 means to loop infinitely https://github.com/libjxl/libjxl/blob/6553831b39a542d6450e76ca5afb64520649d838/lib/jxl/headers.h#L87 and then I confirmed with Jon Sneyers that num_loops being 1 means to have one total play through. (If num_loops being 1 meant two total play throughs then there would be no way to specify one total play through, so that is good.)

There doesn't appear to be any tools that can make finitely looping animated jxl files at this time, so a c file using libjxl was created to create them.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/9b483322456c
https://hg.mozilla.org/integration/autoland/rev/f2f6097a1f4d
Finite length animated jxl images should loop the correct number of times. r=saschanaz

Comment 3

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Created web-platform-tests PR https://github.com/web-platform-tests/wpt/pull/59513 for changes under testing/web-platform/tests

Comment 4

[Cosmin Sabou [:CosminS]]

https://hg.mozilla.org/mozilla-central/rev/f2f6097a1f4d

Comment 5

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Upstream PR merged by moz-wptsync-bot