1218876 - Use webP for Android assets if we ever support >= 4.3 / minSdkVersion >= 18

Status: RESOLVED INCOMPLETE

(Firefox for Android Graveyard :: General, defect, P5)

Description

[Michael Comella (:mcomella) [NI reported issues only: ex-Mozilla]]

WebP is a hip new format that supports lossless transparency and is generally smaller than pngs. Nice. For more, see [1] [2].

WebP is natively supported by Android on 4.2.1+ [3] so if we ever support that and up, we should use it.

[1]: https://developers.google.com/speed/webp/?hl=en
[2]: https://plus.google.com/+ColtMcAnlis/posts/Mm6RUv5P6YH
[3]: http://developer.android.com/guide/appendix/media-formats.html

Comment 1

[Andrzej Hunt :ahunt]

FWIW non-transparent webp images have already been converted to webp (supported on 4.0+) in Bug 1314328, which leaves all the transparency containing pngs.

Android Studio now has a webp converter built in:
https://developer.android.com/studio/write/convert-webp.html

(There's also my old guide on the wiki: https://wiki.mozilla.org/Mobile/Fennec/Android/png_optimisation )

Comment 2

[Andrzej Hunt :ahunt]

Additional note: this should only be done for Android 4.3: support was only added for 4.2.1. 4.2.0 doesn't support transparent or lossless webp, both 4.2.0 and 4.2.1 share the same api number, so we have to wait until 4.3/19 to be able to safely upgrade.

Comment 3

[Firefox Bug Husbandry Bot]

Re-triaging per https://bugzilla.mozilla.org/show_bug.cgi?id=1473195

Needinfo :susheel if you think this bug should be re-triaged.

Comment 4

[BMO Automation]

We have completed our launch of our new Firefox on Android. The development of the new versions use GitHub for issue tracking. If the bug report still reproduces in a current version of [Firefox on Android nightly](https://play.google.com/store/apps/details?id=org.mozilla.fenix) an issue can be reported at the [Fenix GitHub project](https://github.com/mozilla-mobile/fenix/). If you want to discuss your report please use [Mozilla's chat](https://wiki.mozilla.org/Matrix#Connect_to_Matrix) server https://chat.mozilla.org and join the [#fenix](https://chat.mozilla.org/#/room/#fenix:mozilla.org) channel.