Bug#534142: libavcodec51: segfaults on FLAC files with metadata > 64k (ffmpeg issue #187)

Julien BLACHE jblache at debian.org
Mon Jun 22 17:47:18 UTC 2009


reassign 534142 libavcodec51 0.svn20080206-17+lenny1
fixed 534142 4:0.5+svn20090420-1
retitle 534142 libavcodec51: segfaults on FLAC files with metadata > 64k (ffmpeg issue #187)
thanks

John Goerzen <jgoerzen at complete.org> wrote:

Hi,

ffmpeg maintainers: this bug should really be fixed in Lenny, or it's
bound to come up again and again over the lifetime of Lenny.

> Yeah, I'm working on that one too.  (This machine tracked lenny back
> when it was testing already.)  I found the ffmpeg bug report at
> https://roundup.ffmpeg.org/roundup/ffmpeg/issue187 but it's rather vague
> as to exactly which version fixed it.  Though I guess it seems likely
> that the version is squeeze did fix it.

Yes, it's been fixed, from the bug log you can see the fix went in on
2008-07-18 in r14281. Which is a few days after the snapshot you've
got on your machine, unfortunately.

So yes, it's fixed in the version we have in Squeeze (same as
unstable).

> A quick spot check shows that ones that work are at about 12k and ones
> that don't are above 64k.  So far, I've noticed a problem only with
> files on this one album, which could make sense if it has unusually
> large cover art.

Yes, the cover art itself is at 71000+ bytes on this very file :)

>> Anyway, that's an ffmpeg bug, and if it's the 64k bug, I think it
>> can be fixed with the upstream patch pretty easily.
>
> You mean I should rebuild ffmpeg on lenny with the patch from issue 187?

The patch in the bug log is not the final patch, I think; you should
look at their r14281 and apply that instead. And actually this should
be fixed in a Lenny point release for the benefit of all the ffmpeg
users in Lenny for the upcoming 2 years...

> Thanks for the very prompt assistance!

You're welcome. I'm glad it was just that :)

JB.

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