[FFmpeg-devel] A patch to fix buffer overflow when decoding h264

Michael Niedermayer michaelni
Wed May 26 17:36:10 CEST 2010

On Wed, May 26, 2010 at 04:12:37PM +0300, Antti Nietosvaara wrote:
> M?ns Rullg?rd wrote:
>> Antti Nietosvaara <antti at ksenos.fi> writes:
>>> I was experiencing crashes when decoding certain h264 videos
>>> (unfortunately it is quite hard to extract the problematic stream for
>>> replication, since its in proprietary DVR format).
>> If you are able to feed it to libavcodec, clearly you are also able to
>> write it to a file instead.  If the stream is in annex-b format, that
>> is all you need to do.
> Fair enough, I dumped the data to the attachment.  I tested it with ffplay 
> and it did not crash. However, it was able to display image only about 1/3 
> of the time I tried (the rest of the time it was just black), so maybe 
> there's still some undefined behaviour to look into :)

does valgrid show something (preferably with ffmpeg insteda of ffplay
as thats easier to debug)

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

No great genius has ever existed without some touch of madness. -- Aristotle
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