[MEncoder-users] mplayer cannot play AC3 anymore

[Peter Hartshorn]

actually it is "ulimit"

to set the maximum size of a core file, use the -c option.

I use ulimit -c 1000000000

On Mon, 28 Mar 2005 10:34 pm, Guillaume Poirier wrote:
> Hi,
>
>
> On Mon, 28 Mar 2005 11:58:17 +0200, Stefan Frings
>
> <mencoder at meinemullemaus.de> wrote:
> > Hi,
> > I just uploaded the first 4MB of one problematic movie. The filename is
> > ac3_crash.mpg
> >
> > I'm familiar with C programming but I never used the debugger. I think I
> > will learn it in near future.
> >
> > I followed your debug instructions step by step. This is what I got:
> >
> > Starting playback...
> >
> > Program received signal SIGSEGV, Segmentation fault.
> > [Switching to Thread -1221443456 (LWP 22192)]
> > 0xb7e7cdc7 in a52_free () from /usr/local/lib/libavcodec.so
> > (gdb) bt
> > #0  0xb7e7cdc7 in a52_free () from /usr/local/lib/libavcodec.so
> > #1  0xb7e7bd2a in a52_block () from /usr/local/lib/libavcodec.so
> > #2  0x080e2a07 in decode_audio (sh_audio=0x0, buf=0x83bea00 "",
> > minlen=65536,
>
> Ok, it looks to me that the problem is either in libavcodec or liba52.
>
> > I cannot follow the next steps because I did not find a core file. Do I
> > need to enable it somewhere?
>
> Just type "unlimit" on the terminal before starting playback. This
> will allow the system to generate the core file. Please note that this
> file can be fairly huge.
>
> > I saw that the program crashed in livavcodec.so. I installed
> > ffmpeg-0.4.9-pre1 which included the following files. Do you have another
> > version?
>
> I use ffmpeg for cvs. Somehow, I think that it's not recommended to
> use an external libavcodec.so with MPlayer-cvs, as it can be outdated.
> You should build MPlayer with libavcodec from cvs too.
> You can find more informations at the bottom of that page:
> http://mplayerhq.hu/homepage/design7/dload.html or read this entry of
> the faq: http://www.mplayerhq.hu/DOCS/HTML/en/faq.html#id2883097
>
> I do think this should fix you problem. If it doesn't, try to
> uninstall ffmpeg if you installed it as package, or try to remove
> libavcodec.so* _before_  configuring and building MPlayer.
>
> Ultimately, you could try to build a static version of MPlayer
> (./configure --enable-static).
>
> Regards,
> Guillaume
>
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