Re: [Ekiga-devel-list] Ekiga 3.3.0 crash on h263 and h263-1998

On 21/01/11 06:52, g trentalancia libero it wrote:
I am not sure it is related to the bug you mentioned Eugen. It depends
on Opal for sure. The context is not being initialised. It might depend
on ffmpeg if, for example, avcodec_alloc_context() has failed, but I had
no time to check it further.

In any case, I have managed to create a temporary fix, which works for

Ok, thank you. I see that it was partially committed. Even after this commit, I receive a crash as soon as the connection is established (using stable branch for opal and git ekiga):

#5  __libc_free (mem=0x51) at malloc.c:3710
        ar_ptr = <value optimized out>
        p = <value optimized out>
#6 0x00007f7d899c8e5d in H263_RFC2429_EncoderContext::~H263_RFC2429_EncoderContext (this=0x7f7d840db5
a0, __in_chrg=<value optimized out>) at h263-1998.cxx:779
No locals.
#7 0x00007f7d899c9309 in create_encoder (codec=<value optimized out>) at h263-1998.cxx:1351
        context = 0x7f7d840db5a0

i.e. at the line:

Shouldn't the whole patch be committed?

Anyway, I remember having two crashes with H263, one because of free, and another inside ffmpeg. The free might be fixed, but the other one probably not.


On Thu, 20/01/2011 at 09.04 +0100, Eugen Dedu wrote:
On 20/01/11 05:42, g trentalancia libero it wrote:
Ekiga version 3.3.0
Opal version 3.8.3
Ptlib version 2.8.3


This crash is very easy to reproduce and happens always. Just call any
using any
audio codec and the H263 or H263-1998 video codec. Ekiga crashes
immediately after the call begins.

This does not occur when no video codec is selected or any of the other
video codecs is used (theora, h261, mp4v-es).

Attached stack backtrace.

Thank you for the stack.  This is a known issue, see and help if you can.

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