1656099 - AVIF (AV1 Image File Format): sniff MIME type from content

Status: RESOLVED FIXED

(Core :: Graphics: ImageLib, enhancement, P3)

Description

[Jon Bauman [:jbauman:]]

Since image/avif is a new MIME type, it may be some time before web servers correctly populate the Content-Type headers of AVIF responses. Additionally, web developers may not always have access to this level of configuration for the hosts serving their content. As such, examining the beginning of the content itself to determine whether we are receiving an AVIF image will lead to a more useful behavior for users.

The logic to do this for other image types is in imgLoader::GetMimeTypeFromContent.

Comment 1

[Jon Bauman [:jbauman:]]

Attachment: Bug 1656099 - AVIF (AV1 Image File Format): sniff MIME type from content. r=aosmond

Comment 2

[Jon Bauman [:jbauman:]]

Attachment: Bug 1656099 - Fix formatting

Depends on D85503

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/24c3d2bc9951
AVIF (AV1 Image File Format): sniff MIME type from content. r=aosmond
https://hg.mozilla.org/integration/autoland/rev/dc86316b4008
Fix formatting r=aosmond

Comment 4

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

https://hg.mozilla.org/mozilla-central/rev/24c3d2bc9951
https://hg.mozilla.org/mozilla-central/rev/dc86316b4008