Closed
Bug 142349
Opened 22 years ago
Closed 22 years ago
Uneven Frame Rate for Animated GIFs
Categories
(Core :: Graphics: ImageLib, defect)
Tracking
()
RESOLVED
WORKSFORME
People
(Reporter: bugzilla, Assigned: pavlov)
References
()
Details
(Keywords: perf)
From Bugzilla Helper: User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.0rc1) Gecko/20020417 BuildID: 2002041711 Animated GIFs are displayed with an uneven frame rate. As in the example http://br.eff.org/br.gif , the blue ribbon should spin at a constant speed, but alternates between fast an slow. Reproducible: Always Steps to Reproduce: 1.View URL in browser. No special steps 2. 3. Actual Results: GIF displayed incorrectly. Expected Results: Animated GIF should display at correct rate.
Comment 1•22 years ago
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To imagelib.... this may be a dup of the various windows timer issues we've had lately....
Assignee: Matti → pavlov
Component: Browser-General → ImageLib
QA Contact: imajes-qa → tpreston
Comment 2•22 years ago
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wfm using build 2002050404 on Win2k (trunk): constant frame rate (as with NS4.76 and IE6).
Comment 3•22 years ago
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WFM with build 2002050409 Linux (1.0RC2 branch).
Comment 4•22 years ago
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WFM with build 2002050406 WinME (1.0RC2 branch). Reporter, can you reproduce this with a recent nightly build?
Yes, I can reproduce it with the latest nightly build (downloaded and ran the installer (ftp://ftp.mozilla.org/pub/mozilla/nightly/latest/mozilla-win32- installer.exe). Note: This seems to have introduced other, unrelated problems. Later today, I will completely uninstall, then reinstall the latest build and see if they continue.
I am reproducing this bug with Build ID: 2002050504. There seems to be the added problem of a long delay where the animation does not "animate".
Comment 8•22 years ago
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I still can't see this with RC2 on WinME. Reporter, could you try to find out what causes the problem? Have you tried on a clean profile? Have you tried on another computer? If nobody can reproduce the bug, nobody can fix it.
I am able to reproduce the problem with an uninstall/reinstall of RC2. I have not tried on a different machine, but this machine is as follows: IBM Aptiva, Model#: 2170245 SiS 530 on-board video/8MB RAM AMD K6-2 450MHz 256MB RAM Windows 2000/SP2 The previous Mozilla version on this machine, 0.98 did not exhibit this problem. I'll still try and see if it is a hardware issue.
Comment 10•22 years ago
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WFM 2002070204 win2k trunk
Comment 11•22 years ago
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WFM with 2002092408/trunk/win2k. reporter: can you reproduce this bug with a recent build of mozilla (for example, 1.2alpha)? if so, please comment again with details. if not, please resolve this bug as WORKSFORME. thanks.
Comment 12•22 years ago
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no response, resolving WFM. reporter: if you can reproduce this problem with a recent build of mozilla, please reopen this bug. thanks.
Status: UNCONFIRMED → RESOLVED
Closed: 22 years ago
Resolution: --- → WORKSFORME
Reporter | ||
Comment 13•22 years ago
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Testing confirms that this is a driver/sw issue. The platform is an IBM Aptiva with on-board SiS 530 video. The problem occurs under Win2k, but is not repeatable when running under win98 on the same machine. The condition is not limited to Mozilla or animated GIFs, but also applies to Realmedia, and, to a certain extent, Windoze media formats.
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Description
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