[h323plus] H.235 sample

[Simon Horne]

Claudio

Yes the current H.235 Implementation does not take into account the use of
external RTP channel. I will put that on my TODO list to fix before the next
release.

Simon

-----Original Message-----
From: h323plus-bounces at lists.packetizer.com
[mailto:h323plus-bounces at lists.packetizer.com] On Behalf Of Cláudio
Palludetti
Sent: 13 January 2014 22:12
To: Jan Willamowius; h323plus at lists.packetizer.com
Subject: Re: [h323plus] H.235 sample

Jan, 

Thank you.

I had some progress towards establishing a H.235 call but it is falling when
it tries to open the logical channel.
So my question is: Is it possible to use H.235 along with external channels?
I'm asking this because H323RealTimeCapability::CreateChannel calls
connection.CreateRealTimeLogicalChannel (where you can provide your own
external channel subclass) but H323SecureRealTimeCapability::CreateChannel
creates a new H323SecureRTPChannel (it does not call any function where you
could return your own subclass). When I don't use H.235 I get the following
log:

2014/01/09 11:25:10.435 3         h323.cxx(4289) H323 Selecting
G.711-uLaw-64k <1>
2014/01/09 11:25:10.435 3      h323neg.cxx(542) H245 Opening channel: T-101
2014/01/09 11:25:10.435 4     h323caps.cxx(3265) H323 FindCapability: 102
2014/01/09 11:25:10.435 4     h235caps.cxx(379) H235RTP Cloning Capability:
G.711-uLaw-64k
2014-01-09:11.25.10 (8970) CltApp   DEBUG   (H323ClientConnection.cpp:357)
Creating transmitter audio channel (G.711-uLaw-64k).

The last one is from my subclass. 

When I try to use H.235 I get:

2014/01/09 15:55:00.655 3         h323.cxx(4289) H323 Selecting
G.711-uLaw-64k <1>
2014/01/09 15:55:00.655 3      h323neg.cxx(542) H245 Opening channel: T-101
2014/01/09 15:55:00.655 4     h323caps.cxx(3265) H323 FindCapability: 102
2014/01/09 15:55:00.655 3     h323caps.cxx(3269) H323 Found capability:
SecCapability [2] <102>
2014/01/09 15:55:00.656 4       osutil.cxx(189) PWLib File handle high water
mark set: 37 PUDPSocket
2014/01/09 15:55:00.656 4       osutil.cxx(189) PWLib File handle high water
mark set: 38 PUDPSocket
2014/01/09 15:55:00.656 2          rtp.cxx(1581) RTP_UDP Session 1 created:
192.168.14.43:5000-5001 ssrc=3823145998
2014/01/09 15:55:00.656 2          rtp.cxx(1314) RTP Adding session RTP_UDP
2014/01/09 15:55:00.656 4     h235caps.cxx(379) H235RTP Cloning Capability:
G.711-uLaw-64k #
2014/01/09 15:55:00.656 3     channels.cxx(654) H323RTP Transmitter created
using session 1
2014/01/09 15:55:00.656 4     h235chan.cxx(149) H235RTP OnSendingPDU
2014/01/09 15:55:00.656 3     channels.cxx(472) H323RTP OnSendingPDU
2014/01/09 15:55:00.656 3      h323rtp.cxx(134) RTP OnSendingPDU
2014/01/09 15:55:00.657 3       codecs.cxx(1247) Codec G711 uLaw encoder
created for at 64k, frame of 160 samples
2014/01/09 15:55:00.657 5      osutils.cxx(2219) PTLib Created read/write
mutex 0x7f85e4006b78
2014/01/09 15:55:00.657 5      osutils.cxx(2219) PTLib Created read/write
mutex 0x7f85e4011398
2014/01/09 15:55:00.657 3       h323ep.cxx(2543) Codec Opened sound channel
"Null Audio" for recording at 8000 samples/second using 2x320 byte buffers.
2014/01/09 15:55:00.657 1     channels.cxx(716) LogChan Transmit thread
aborted (open fail) for G.711-uLaw-64k # <1>

I appreciate any help. Thanks in advance.

Claudio

-----Original Message-----
From: h323plus-bounces at lists.packetizer.com
[mailto:h323plus-bounces at lists.packetizer.com] On Behalf Of Jan Willamowius
Sent: quarta-feira, 2 de outubro de 2013 10:50
To: h323plus at lists.packetizer.com
Subject: Re: [h323plus] H.235 sample

Hi Claudio,

take a look at the provided sample application "Simple".
When you start it with command line argument "-m 128", it will do H.235 AES
128 media encryption.

Regards,
Jan

--
Jan Willamowius, Founder of the GNU Gatekeeper Project EMail  :
jan at willamowius.de
Website: http://www.gnugk.org
Support: http://www.willamowius.com/gnugk-support.html

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Cláudio Palludetti wrote:
> Hi,
> 
> We are developing an H.323 EP  and we need to use the H.235. 
> Is there any example using this?
> We are using h323plus V1.24.0 and we enabled the H.235.
> 
> Thanks
> 
> Claudio