Re: [Linphone-developers] msconf problem

[Simon Morlat]

Hi Ivan,

The way you're proceeding with the filters looks good to me.
I have no idea of what is going wrong, however I can see the backtrace
does not have any debugging symbols.
It would be good that you rebuild a mediastreamer2 from source to have
debugging enabled.
Then the backtrace would point us directly where the segfault occurs.

Simon

Le mardi 01 février 2011 à 17:31 +0100, Ivan Popovski a écrit :
> Hi to all
> 
> Can somebody confirm if this is ok scenario for creating audio streaming conf?
> This is programmed using examples from mediastreamer test dir and reading
> all possible docs:
> 
> blank player -> pin0,0 -> msconf -> pin0,0 -> sink
> rtprecv1 -> pin0,1 -> msconf -> pin1,0 -> rtpsend1
> rtprecv2 -> pin0,2 -> msconf -> pin2,0 -> rtpsend2
> 
> After ticker creation, filters are created and set. Rtp sessions are created
> using RTP_SESSION_SENDRECV, and rtprecv/send are set to (using methods)
> MS_RTP_RECV_SET_SESSION or MS_RTP_SEND_SET_SESSION.
> Graphs are then linked and attached to ticker. All of this works fine.
> 
> But when i try to unlink one of graphs (for example rtprecv2,...),
> application segfaults. Ofc i'm detaching rtprecv2 before unlinking.
> gdb says:
> 
> (gdb) bt
> #0  0x00007fbedf3361fd in ?? () from /usr/lib64/libmediastreamer.so.0
> #1  0x00007fbedf333f62 in ?? () from /usr/lib64/libmediastreamer.so.0
> #2  0x00007fbedf334072 in ?? () from /usr/lib64/libmediastreamer.so.0
> #3  0x00007fbedf334162 in ms_ticker_run () from 
> /usr/lib64/libmediastreamer.so.0
> #4  0x00007fbedfb08980 in start_thread () from /lib64/libpthread.so.0
> #5  0x00007fbee134c57d in clone () from /lib64/libc.so.6
> 
> Btw using blank player that was posted to mailing list because someone said
> that pin0 should use that filter (not using soundcard).
> Also i'm aware that msconf is using 2*i+1, 2*i scheme for pins,
> could that be the problem?
> 
> This is all done on debian squeeze and really have no clue what to
> do next. If you can point me in some direction, would be very grateful ;-)
> 
> Than you very much
> 
> P.S. Sorry on newbie question and bad english :-)
> 
> 
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