[Bug 11822] rescaling of animated gif increase size

2011-04-28 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=11822

Mark A. Hershberger m...@everybody.org changed:

   What|Removed |Added

 CC||m...@everybody.org

--- Comment #22 from Mark A. Hershberger m...@everybody.org 2011-04-28 
20:25:08 UTC ---
Removed the +map bit in r87099

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[Bug 11822] rescaling of animated gif increase size

2011-04-27 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=11822

--- Comment #21 from Brion Vibber br...@wikimedia.org 2011-04-28 00:56:56 UTC 
---
The +map option appears to still damage at least some transparent animated
GIFs; see bug 28631.

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[Bug 11822] rescaling of animated gif increase size

2010-08-20 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=11822

Derk-Jan Hartman hart...@videolan.org changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution||FIXED

--- Comment #20 from Derk-Jan Hartman hart...@videolan.org 2010-08-20 
15:38:47 CEST ---
Should be much improved with r71354.

I'm using OptimizeTransparency, hopefully at some time the normal -optimize is
repaired and we can start using that.

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[Bug 11822] rescaling of animated gif increase size

2010-08-19 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=11822

--- Comment #18 from Derk-Jan Hartman hart...@videolan.org 2010-08-19 
12:35:15 CEST ---
Right this is annoying. Apparently using -layers optimize breaks
transparency. I have discussed this with an ImageMagick developer, and This is
a know problem, and one that suddenly appeared, but the cause is not known. It
appears to effect the first image in a sequence but does not always happen.

So we cannot optimize images and expect transparency to work, though it does
seem that the -layers OptimizeTransparency option doesn't have this problem
as much. I'll try to see if I can figure that out for 100%.

I'll also consider at least adding +map to the images, to keep the colortable
reasonable.

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[Bug 11822] rescaling of animated gif increase size

2010-08-19 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=11822

--- Comment #19 from Derk-Jan Hartman hart...@videolan.org 2010-08-19 
13:53:04 CEST ---
Confirmed, just using -layer OptimizeTransparency doesn't exhibit this problem,
but it was only added in IM v6.3.4-4).

So we could use that, but then we should probably have a sort of version check
for imagemagick. I'm not sure how to do something like that in PHP (at least
not with it being at all effecient).

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[Bug 11822] rescaling of animated gif increase size

2010-06-26 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=11822

Max Semenik maxsem.w...@gmail.com changed:

   What|Removed |Added

 CC||wikime...@manuel-strehl.de

--- Comment #17 from Max Semenik maxsem.w...@gmail.com 2010-06-26 09:17:58 
UTC ---
*** Bug 2604 has been marked as a duplicate of this bug. ***

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[Bug 11822] rescaling of animated gif increase size

2010-05-05 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=11822

--- Comment #14 from Ilmari Karonen nos...@vyznev.net 2010-05-05 11:15:54 UTC 
---
Hmm... I see that Ubuntu 6.06 LTS (dapper) still uses IM 6.2.4, and the server
version is officially supported until June 2011.  Then again, they also include
MW 1.4.  Even Debian stable has IM 6.3.7 these days.

Personally, I think I'd be OK with requiring an ImageMagick version less than
four years old.  Although that means I'll have call my webhost and ask them to
upgrade -- it seems they're running a mix of 6.2.4 and 6.3.7 on their servers. 
Oh well, I should do that anyway.  Or compile my own.

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[Bug 11822] rescaling of animated gif increase size

2010-05-05 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=11822

--- Comment #15 from Derk-Jan Hartman hart...@videolan.org 2010-05-05 
16:57:23 CEST ---
After having studied

http://www.imagemagick.org/Usage/video/#gif
http://www.imagemagick.org/Usage/anim_opt/

I have studied the options -fuzz 10% -layers optimize. This provided
reasonable optimization. I also tried adding +map to reduce to prevent per
frame colortables, but this option doesn't deal very well with transparency
unfortunately (because it does significantly reduce filesize).

I'm also considering splitting animated from non-animated behavior, using png
thumbs for non-animated images.

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[Bug 11822] rescaling of animated gif increase size

2010-05-05 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=11822

--- Comment #16 from Derk-Jan Hartman hart...@videolan.org 2010-05-05 
17:00:27 CEST ---
For backwards compatibility i'm considering expanding the ImageHandler with a
routine to check /opt/local/bin/convert -version  That info should probably be
cached in some way, but I don't really have any ideas about that yet.

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[Bug 11822] rescaling of animated gif increase size

2010-05-04 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=11822

Ilmari Karonen nos...@vyznev.net changed:

   What|Removed |Added

 CC||hart...@videolan.org

--- Comment #11 from Ilmari Karonen nos...@vyznev.net 2010-05-04 12:35:44 UTC 
---
*** Bug 23398 has been marked as a duplicate of this bug. ***

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[Bug 11822] rescaling of animated gif increase size

2010-05-04 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=11822

--- Comment #12 from Derk-Jan Hartman hart...@videolan.org 2010-05-04 
16:40:09 CEST ---
I intend on fixing this issue. Do we still think we need backward compatibility
with imagemagick before 6.3 ?

ImageMagick 6.3 was first released in October-2006.

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[Bug 11822] rescaling of animated gif increase size

2010-05-04 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=11822

--- Comment #13 from Derk-Jan Hartman hart...@videolan.org 2010-05-04 
16:47:11 CEST ---
as a matter of fact, 6.2.7 which is the first to support -layers optimizeplus
was already released in May 2006. And 6.2.6 the first release with -layers was
released in april of 2006.

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[Bug 11822] rescaling of animated gif increase size

2008-12-12 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=11822





--- Comment #10 from Brion Vibber br...@wikimedia.org  2008-12-12 23:13:06 
UTC ---
Note our image scaler boxes are currently running ImageMagick 6.3.7... on the
other hand we've disabled scaling of GIFs for now due to recurring problems
handling GIFs. :P

A version check, or a fallback-on-failure could deal with the versioning issue
in general (eg remove the -layers option if it failed to run the first time).


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