[Webkit-unassigned] [Bug 19688] Add autodetection of image orientation from EXIF information

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=19688


Eric Seidel <eric at webkit.org> changed:

           What    |Removed                     |Added
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                 CC|                            |steveblock at google.com




--- Comment #61 from Eric Seidel <eric at webkit.org>  2011-05-26 07:17:19 PST ---
roc points out that Android also respects EXIF.

Although I initially had "break the web" concerns, I've yet to see a website which would be broken by this.

I should apply my patch locally and try surfing various picture sharing sites to see if they'll be negatively affected by this.

There are 3 types of possible breakage:

1.  Images with height/width specified, which are now auto-rotated, and look squished.
2.  Images without height/width, which are now auto-rotated and cause other parts of the page to move (and possibly look wrong).
3.  Sites which use an existing client-side auto-rotate solution like: http://www.nihilogic.dk/labs/exif/ or http://byrev.org/bookmarks/wordpress-exif-orientation-plugin/which may now break.  (I know of no such site).


I've come around to believe that the breakage list is likely to be very small.  I would recommend we add this support to match existing image viewers, and unbreak mail sites and sites which include user-uploaded photos.

We should of course be careful when adding this to test more sophisticated photo-sharing sites like flikr, facebook, picassa, etc. to make sure we're not breaking them.

I'll tidy-up and re-post this patch next week.

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