85177 - Animated GIF shows corrupted Frames

Status: RESOLVED DUPLICATE of bug 22607

(Core :: Graphics: ImageLib, defect)

Description

[Daniel Mario Vega (Restore MNG Support --> #18574)]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:0.9.1+) Gecko/20010605
BuildID:    2001060520

Some animated gifs display incorrectly. I think we are not supporting all the
frame "Disposal methods" defined in the standard. Specially "Restore to previous
"or "dispose to background color". The test URL displays fine on MSIE, Opera and
Konqueror.

Reproducible: Always
Steps to Reproduce:
Open the test URL or one of the test cases I will upload

Actual Results:  The sequence of frames show some "noise" from previous images.

Expected Results:  The animated gif should display fine

For info on Animated GIFs and Frame Disposal Methods:

http://odur.let.rug.nl/~kleiweg/gif/GIF89a.html

This bug may be a dup of bug 8409 , but that bug is closed as "INVALID". I think
"INVALID" is not a proper resolution. This really is a Mozilla problem.

Comment 1

[Daniel Mario Vega (Restore MNG Support --> #18574)]

Attachment: Test Case : Same GIF from URL

Comment 2

[Daniel Mario Vega (Restore MNG Support --> #18574)]

Attachment: Another test case

Comment 3

[Aaron Kaluszka]

check out bug 77914

Comment 4

[James Lariviere]

agree with aaron that this is a dupe.

marking.

*** This bug has been marked as a duplicate of 77914 ***

Comment 5

[Daniel Mario Vega (Restore MNG Support --> #18574)]

I'm not sure is a Dup of bug 77914. The the original test case and test URL ( 
attachment 37895 [details] ) has no problem with background colors.

Comment 6

[Daniel Mario Vega (Restore MNG Support --> #18574)]

Bug 77914 is fixed and verified, but this testcases are still broken with Build
2001061706.

Reopening bug.

Also see bug 85342 and attachment 37874 [details]

Comment 7

[Aaron Kaluszka]

*** Bug 86342 has been marked as a duplicate of this bug. ***

Comment 8

[bob_erek]

Check out bug 22607 "GIF decoder doesn't support all frame replacement options"

Comment 9

[Daniel Mario Vega (Restore MNG Support --> #18574)]

I agree it's a dup of bug 22607

Sorry I didn't find it before creating this one.

*** This bug has been marked as a duplicate of 22607 ***