[Ffmpeg-devel] SVN 6723 of ffmpeg segfaults :(

[Michael Niedermayer]

Hi

On Tue, Oct 17, 2006 at 09:51:41PM +0300, Ismail Donmez wrote:
> 17 Eki 2006 Sal 21:39 tarihinde, Tanim Islam ??unlar?? yazm????t??: 
> > Hi:
> >
> > I have compiled ffmpeg on Ubuntu 5.10, using gcc (GCC) 4.0.3 20051121
> > (prerelease) (Ubuntu 4.0.2-4ubuntu3). I compile with the following flags:
> >
> > --enable-mp3lame --enable-libogg --enable-vorbis --enable-faad
> > --enable-faac --enable-xvid --enable-x264 --enable-a52 --disable-static
> > --enable-shared --enable-gpl --enable-dts --prefix=$(HOME)/apps
> > --disable-strip
> > --enable-pthreads --disable-ffserver --enable-libgsm
> >
> > I run the following command:
> >
> > ffmpeg -i file.flv -vcodec mpeg4 -b 512 -acodec mp3 -ar 44100 -ac 2 -ab 64
> > -y file.avi
> >
> > The program segfaults. Here is 1) the backtrace:
> >
> > (gdb) bt
> > #0  0x0804cf83 in parse_arg_file (filename=0xbf86d364 "file.avi")
> >     at ffmpeg.c:3200
> 
> That line has some interesting piece of code:
> 
> if(d==d && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
>    ^^^^
> 
> Someone tried to do if (1 && ... ) ?

NAN != NAN

if replacing the code above by !isnan(d) fixes the issue then you may
submit a patch ...

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

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