** Changed in: canonical-devices-system-image
Status: Fix Committed => Fix Released
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Title:
Attached gif
We should have a better fix for this in the next Thumbnailer landing:
rather than blacklisting large GIF files, I worked out how to convince
gdk-pixbuf to stop once we read enough to decode the first frame.
This makes the attached 45MB GIF file thumbnail almost instantly,
without ballooning
** Branch linked: lp:~jamesh/thumbnailer/gif-first-frame
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Title:
Attached gif downloaded from telegram takes out
** Changed in: thumbnailer (Ubuntu)
Status: New => In Progress
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Title:
Attached gif downloaded from
** Branch linked: lp:~michihenning/thumbnailer/animated-gifs
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Title:
Attached gif downloaded from telegram takes
** Changed in: canonical-devices-system-image
Status: Confirmed => Fix Committed
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Title:
Attached gif
This bug was fixed in the package thumbnailer -
2.3+16.04.20160108.2-0ubuntu1
---
thumbnailer (2.3+16.04.20160108.2-0ubuntu1) xenial; urgency=medium
[ Michi Henning ]
* Fixed incorrect display of cache policy by "thumbnailer-admin stats".
* Limit GIF file size to 2 MB (LP:
** Branch linked: lp:~michihenning/thumbnailer/fix-1527315
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Title:
Attached gif downloaded from telegram takes
Elevated this to critical because the thumbnailer service is permanently
toast if someone actually does add a GIF image that blows the memory
limits imposed by the OOM watchdog.
If that happens in the field, it's good-bye thumbnailer service whenever
any app or scope asks for a thumbnail for the
** Changed in: canonical-devices-system-image
Assignee: Michi Henning (michihenning) => Alejandro J. Cura (alecu)
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With the devel branch at 317, the thumbnailer copes with the animated
gif just fine, in the sense that it correctly comes up with a thumbnail.
It takes 6 seconds though, and memory temporarily climbs to 1.2 GB.
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The gif contains 491 frames at 960 by 540. Uncompressed, that's half a
MB per frame, for a total of 254 MB. So, during scaling with gdk_pixbuf,
we have at least this much in memory, plus a copy of the scaled result.
Little wonder that things break.
I'll see if we can change things such that we
** Changed in: canonical-devices-system-image
Assignee: (unassigned) => Michi Henning (michihenning)
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Title:
I shudder to think what this video would do to global warming if it
happened to go viral… ;)
Come to think of it, how much global warming is caused by cat videos?
Would be an interesting research project…
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That's a pretty stupid way to make a video. A real video would probably
be a lot small and have better quality :-)
But I agree that we shouldn't fall over just because someone feeds us a
file like this. I'll have a look at what's going on.
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Not optimal but fun. I made the same silly mistake recently thinking
GIFs would be cool. But you lose colour depth (GIFs are indexed 256
colour at most) so get dithered, and the GIF files were bigger than the
original MP4s. Not clever, but fun.
GIFs have two significant advantages though:
1. A
** Changed in: thumbnailer (Ubuntu)
Importance: Undecided => High
** Changed in: thumbnailer (Ubuntu)
Assignee: (unassigned) => Michi Henning (michihenning)
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** Tags added: qa-dogfood
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Title:
Attached gif downloaded from telegram takes out the phone as
thumbnailer
** Also affects: canonical-devices-system-image
Importance: Undecided
Status: New
** Changed in: canonical-devices-system-image
Status: New => Confirmed
** Changed in: canonical-devices-system-image
Importance: Undecided => High
** Changed in: canonical-devices-system-image
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