Bug 23455 - Hang when loading an mpeg movie
Summary: Hang when loading an mpeg movie
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Plug-ins (show other bugs)
Version: 528+ (Nightly build)
Hardware: Macintosh OS X 10.5
: P2 Normal
Assignee: Nobody
URL: http://www.amsn-project.net/~kakaroto...
Keywords:
Depends on:
Blocks:
 
Reported: 2009-01-21 09:23 PST by David Smith
Modified: 2009-03-02 11:51 PST (History)
1 user (show)

See Also:


Attachments
Sample of hang (92.74 KB, text/plain)
2009-01-21 09:24 PST, David Smith
no flags Details

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Description David Smith 2009-01-21 09:23:18 PST
I got a fairly long beachball when loading this file. Sample attached.
Comment 1 David Smith 2009-01-21 09:24:18 PST
Created attachment 26894 [details]
Sample of hang
Comment 2 Eric Carlson 2009-01-21 09:58:32 PST
It isn't an MPEG file, it an AVI with MPEG-4 video:

eric% xxd -l 128 amsn2-v4.mpeg
0000000: 5249 4646 324f 5800 4156 4920 4c49 5354  RIFF2OX.AVI LIST
0000010: 7622 0000 6864 726c 6176 6968 3800 0000  v"..hdrlavih8...
0000020: a086 0100 4871 0000 0000 0000 1009 0000  ....Hq..........
0000030: 7403 0000 0000 0000 0200 0000 0000 1000  t...............
0000040: e902 0000 3702 0000 0000 0000 0000 0000  ....7...........
0000050: 0000 0000 0000 0000 4c49 5354 9010 0000  ........LIST....
0000060: 7374 726c 7374 7268 3800 0000 7669 6473  strlstrh8...vids
0000070: 464d 5034 0000 0000 0000 0000 0000 0000  FMP4............

The QuickTime mpeg importer finds a bit pattern that resembles a sequence start code so it scans along for a while looking for an end sequence