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[Linphone-users] Re: Linphone-users Digest, Vol 49, Issue 9


From: venkatram mustoor
Subject: [Linphone-users] Re: Linphone-users Digest, Vol 49, Issue 9
Date: Wed, 20 Dec 2006 10:20:48 +0530

y there is no reply fom the forum. for my earlier questions.

On 12/19/06, address@hidden
<address@hidden> wrote:
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Today's Topics:

  1. Re:  Re: IPv6 and eXosip_guess_ip_for_via() (Kannaiyan)
  2. Re:  ORTP with Symmetric (Kannaiyan)
  3. Re:  ORTP with Symmetric (Kannaiyan)
  4.  IPPHONE (venkatram mustoor)
  5.  rtp_session_recv_with_ts and null fill (Niklas Fondberg)


----------------------------------------------------------------------

Message: 1
Date: Tue, 19 Dec 2006 08:58:50 +0800
From: "Kannaiyan" <address@hidden>
Subject: Re: [Linphone-users] Re: IPv6 and eXosip_guess_ip_for_via()
To: <address@hidden>
Message-ID: <address@hidden>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
       reply-type=original

Petr,

I guess it is from the eXosip.
There is a possibility of supplying own ip address in eXosip too, may not be
directly but through the socket.

Kannaiyan

----- Original Message -----
From: "Petr Pisar" <address@hidden>
To: <address@hidden>
Sent: Tuesday, December 19, 2006 12:18 AM
Subject: [Linphone-users] Re: IPv6 and eXosip_guess_ip_for_via()


> On 2006-12-18, Simon Morlat <address@hidden> wrote:
>> Actually it is not trying to connect.  It just does a connect() system
>> call on a udp socket to this ip address, which just has the effect of
>> setting the local address of the socket. No packets are going to
>> 2001:638:500:101:2e0:81ff:fe24:37c6.  This local address is then
>> retrieved to be used in SIP and SDP messages.  The
>> 2001:638:500:101:2e0:81ff:fe24:37c6 is actually a randomly choosen
>> public IP address. The goal of this lookup is to find the local
>> interface (ip address) that is able to communicate with the public
>> internet.
>>
>
> Simon, I appriciate your effort to make linphone easy-to-use, but
> sometimes it
> hurts. Like in this case. Let's say you have multihomed host or network
> without default gateway. You can have thousand reasons why the "public"
> IP is not reachable. And then linphone uses bad IP address.
>
> Could you make this IP configurable per SIP proxy? Sure, you can keep
> the autoguess functionality, but some override mechanism would be nice.
>
> -- Petr
>
>
>
> _______________________________________________
> Linphone-users mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/linphone-users
>






------------------------------

Message: 2
Date: Tue, 19 Dec 2006 10:10:46 +0800
From: "Kannaiyan" <address@hidden>
Subject: Re: [Linphone-users] ORTP with Symmetric
To: <address@hidden>,        <address@hidden>
Message-ID: <address@hidden>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
       reply-type=original

Hi Simon,

Thanks for the help.
I want to send the RTCP packets to be sent out with a desired interval.
Also what is the best way to take  control of the RTCP and do the
transmission by myself, rather than asking ortp to do it.

Regards,
Kannaiyan

----- Original Message -----
From: "Simon Morlat" <address@hidden>
To: <address@hidden>; "Kannaiyan" <address@hidden>
Sent: Saturday, December 16, 2006 5:15 AM
Subject: Re: [Linphone-users] ORTP with Symmetric


Hi,

I think all you need is to create a RtpSession with RTP_SESSION_SENDRECV,
thus
call rtp_session_set_symmetric_rtp() that would make outgoing packets go to
the source of incoming packets.
RTCP packets will be compound packets with SDES and SR (including a RR).

Simon

Le mercredi 13 décembre 2006 03:35, Kannaiyan a écrit :
> Hi,
>
> I want to receive rtp with a Symmetric Nat and send it back from where I
> received the RTP FROM.
> Shall I start a session with RTP_SESSION_SENDRECV  and change the sending
> port once I receive the RTP
>
> What is the best way of achieveing this?
>
> Currently I do a single voice call with two sessions,
>
> RTP_SESSION_SENDONLY
> RTP_SESSION_RECVONLY
>
> and works fine.
>
> Shall I send RTCP Report as a single RTCP Packet for both send and
> receive?
> Anyway to merge the reports of two sessions and send the RTCP Report?
>
> Thanks.
>
> Regards,
> Kannaiyan
>
>
>
>
> _______________________________________________
> Linphone-users mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/linphone-users






------------------------------

Message: 3
Date: Tue, 19 Dec 2006 11:22:05 +0800
From: "Kannaiyan" <address@hidden>
Subject: Re: [Linphone-users] ORTP with Symmetric
To: <address@hidden>,        <address@hidden>
Message-ID: <address@hidden>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
       reply-type=response

Hi Simon,

The reason for the need is below,

1. To anaylse how is the communication performance between the end parties.
2. When the bandwidth occupied is high and the quality of voice is low, need
to switch to low bit rate codec.
3. When it comes to video, sometimes the base frame is not proper, so we
might need to ask the remote party to start sending the pilot frame or base
frame.

Thanks.

Regards,
Kannaiyan

----- Original Message -----
From: "Kannaiyan" <address@hidden>
To: <address@hidden>; <address@hidden>
Sent: Tuesday, December 19, 2006 10:10 AM
Subject: Re: [Linphone-users] ORTP with Symmetric


> Hi Simon,
>
> Thanks for the help.
> I want to send the RTCP packets to be sent out with a desired interval.
> Also what is the best way to take  control of the RTCP and do the
> transmission by myself, rather than asking ortp to do it.
>
> Regards,
> Kannaiyan
>
> ----- Original Message -----
> From: "Simon Morlat" <address@hidden>
> To: <address@hidden>; "Kannaiyan" <address@hidden>
> Sent: Saturday, December 16, 2006 5:15 AM
> Subject: Re: [Linphone-users] ORTP with Symmetric
>
>
> Hi,
>
> I think all you need is to create a RtpSession with RTP_SESSION_SENDRECV,
> thus
> call rtp_session_set_symmetric_rtp() that would make outgoing packets go
> to
> the source of incoming packets.
> RTCP packets will be compound packets with SDES and SR (including a RR).
>
> Simon
>
> Le mercredi 13 décembre 2006 03:35, Kannaiyan a écrit :
>> Hi,
>>
>> I want to receive rtp with a Symmetric Nat and send it back from where I
>> received the RTP FROM.
>> Shall I start a session with RTP_SESSION_SENDRECV  and change the sending
>> port once I receive the RTP
>>
>> What is the best way of achieveing this?
>>
>> Currently I do a single voice call with two sessions,
>>
>> RTP_SESSION_SENDONLY
>> RTP_SESSION_RECVONLY
>>
>> and works fine.
>>
>> Shall I send RTCP Report as a single RTCP Packet for both send and
>> receive?
>> Anyway to merge the reports of two sessions and send the RTCP Report?
>>
>> Thanks.
>>
>> Regards,
>> Kannaiyan
>>
>>
>>
>>
>> _______________________________________________
>> Linphone-users mailing list
>> address@hidden
>> http://lists.nongnu.org/mailman/listinfo/linphone-users
>
>
>
>
> _______________________________________________
> Linphone-users mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/linphone-users
>






------------------------------

Message: 4
Date: Tue, 19 Dec 2006 09:22:08 +0530
From: "venkatram mustoor" <address@hidden>
Subject: [Linphone-users] IPPHONE
To: address@hidden
Message-ID:
       <address@hidden>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

When installing LIN-PHONE, i am getting error as :set environment
variable to "PKG_CONFIG_PATH.

please help me hpw to set this.

also how to disable video in media-streamer, because as i am
installing only audio.

so i must disable video scripts in media-streamer.

thanks in advance.




------------------------------

Message: 5
Date: Tue, 19 Dec 2006 13:57:36 +0100
From: "Niklas Fondberg" <address@hidden>
Subject: [Linphone-users] rtp_session_recv_with_ts and null fill
To: address@hidden
Message-ID:
       <address@hidden>
Content-Type: text/plain; charset="iso-8859-1"

Hi all,
I'm new to using the ortp library and this list seems to be the correct one
for it.
I'm trying to disable the null filling of the payload but I'm unsuccessful.

My code is basically the same as src/test/rtpsend.c and src/test/rtprecv.c.
When I change the payload type from

rtp_session_set_payload_type(p_rtp_session->session,PAYLOAD_AUDIO_CONTINUOUS);
to

rtp_session_set_payload_type(p_rtp_session->session,PAYLOAD_AUDIO_PACKETIZED);
I receive nothing.

My end goal will be to have a simple voiceplayer that doesn't include any
protocols such as SIP, H.323 or MGCP but rather just get setup from another
application and recieves G.711 u-law/a-law and decodes it and plays it back
as well as the other was encodes and transmits it.

I guess the null filling is for having CBR for audio silence but is this
necessary?

What do I do if I want to transmit a file like in the example
(rtpsend/rtprecv) and want the file without null bytes?

Is there any special things to think about when testing with sender and
receiver on one machine (127.0.0.1)?


Many thanks in advance and I hope I'm not asking dumb questions that are in
some online documentation.
Niklas
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