gmane.comp.telephony.h323plus

GNU Gatekeeper 3.0.2 released

Jan Willamowius — 2012-05-04T14:45:47

Hi,

I have just released GnuGk 3.0.2. This is purely a bugfix release that
fixes 2 bugs in the 3.0.x line.

You can download the new version at
http://www.gnugk.org/h323download.html

Executables are provided for Linux, Windows and FreeBSD.

Regards,
Jan

Re: H323-SIP Gateway with H264 Support

Diego Carvalho — 2012-05-02T14:37:02

Hi Simon, where I define this option (_STATIC_LINK) ?
And what about my second question. It is very important for me. I
appreciate any help. Thanks.

2012/4/30 Simon Horne <s.horne< at >packetizer.com>

Re: H323-SIP Gateway with H264 Support

Simon Horne — 2012-05-01T01:15:52

Diego

 

Compile the plugins using _STATIC_LINK option for both G.722 and H.264 this
will create static libraries and #define H323_STATIC_H264  and
H323_STATIC_G7221 in openh323buildopts.h.in to load them.

 

Simon

 

 

From: h323plus-bounces< at >lists.packetizer.com
[mailto:h323plus-bounces< at >lists.packetizer.com] On Behalf Of Diego Carvalho
Sent: 01 May 2012 05:39
To: Simon Horne; h323plus< at >lists.packetizer.com
Subject: Re: [h323plus] H323-SIP Gateway with H264 Support

 

Hi Simon,

I am very grateful for the version of the H264 plugin with the _SGINAL_ONLY
option. After using it I finally could make video work on my application.

Now I have 2 more challenges:

1 - Link the H264 and G722 plugins statically. How can I do this?

2 - I still have problems with capability negotiation. You said me to
override H323Connection::OnSetLocalCapabilities to remove the codecs that
SIP doesn't support. But this function is called in the very beginning of a
call, when I don't have SIP info yet. So I answer the call with
H3

Re: H323-SIP Gateway with H264 Support

Diego Carvalho — 2012-05-01T00:17:33

No, it is part of a system that the company I work for is developing. But
I'm available to help anyone with the knowledge I'm getting here and while
I'm developing it.

Best regards,

2012/4/30 Jan Willamowius <jan< at >willamowius.de>

Re: H323-SIP Gateway with H264 Support

Diego Carvalho — 2012-04-30T19:38:30

Hi Simon,
I am very grateful for the version of the H264 plugin with the _SGINAL_ONLY
option. After using it I finally could make video work on my application.
Now I have 2 more challenges:
1 - Link the H264 and G722 plugins statically. How can I do this?
2 - I still have problems with capability negotiation. You said me to
override H323Connection::OnSetLocalCapabilities to remove the codecs that
SIP doesn't support. But this function is called in the very beginning of a
call, when I don't have SIP info yet. So I answer the call with
H323Connection::AnswerCallPending and then start the SIP call. So I will
have the SIP info only before sending the Connect PDU (e.g before calling
H323Connection::AnswerCallNow). Is there another way to modify the local
capabilities with this constraint?
I appreciate any help. Thanks in advance.

2012/4/10 Simon Horne <s.horne< at >packetizer.com>

Re: H323plus Problem Reg G722 plugin loading.

Ashwani Kumar — 2012-04-12T06:27:51

Hi All,

I saw h323plus G722 plugin code, h323plus/plugins/audio/G722/g722codec.c
*
// TODO: will never be loaded by H323Plus with this description!
static const char L16Desc[]  = "PCM-16-16kHz"; // Cannot use "L16" as
usual, force 16kHz PCM
static const char g722[]     = "G.722-64k";
static const char sdpG722[]  = "G722"; *


does any one tried G722 plugin in H323plus?




Thanks in Advance
Ashwani


On Wed, Apr 11, 2012 at 6:16 PM, Ashwani Kumar <ash1412< at >gmail.com> wrote:

Re: H323plus support for UDP signalling

ojab — 2012-04-12T04:21:56

Just FYI: there is H.323 over UDP implementation in Acme Packet SBCs.

//wbr ojab


On 11.04.2012 09:29, Simon Horne wrote:

Re: H323plus support for UDP signalling

J.C Mercier — 2012-04-12T03:56:13

Thanks Simon,

I will definitely look into what you suggested and go from there.

Josh

On Wed, Apr 11, 2012 at 1:29 AM, Simon Horne <s.horne< at >packetizer.com> wrote:

Does H323Plus support Intra-frame Request?

Ashwani Kumar — 2012-04-11T12:51:27

Hi Simon,

Does H323Plus signaling support Intra-frame Request for Video?

H323plus Problem Reg G722 plugin loading.

Ashwani Kumar — 2012-04-11T12:46:57

Hi All,

I am not able to see G722 support in H323plus, When I am using simph323
application. I have also copied  all the " *g7221_audio_pwplugin.so
g7222_audio_pwplugin.so g722_audio_pwplugin.so* to the simph323 dir. I am
only able to see  *G.722.1-24k{sw} <3> G.722.1-32k{sw} <4>* support in
Codec table.

Below is the few line of log;

Codecs (in preference order):
 Table:
   G.711-uLaw-64k <2>
   G.711-ALaw-64k <1>
   G.722.1-24k{sw} <3>
   G.722.1-32k{sw} <4>
   H.264-720{sw} <5>
   H.264-CIF{sw} <6>
   H.239(H.264{sw} <1>) <7>
   H.239 Control <8>



Please find pointers to solve the problem.

Re: H323plus support for UDP signalling

Simon Horne — 2012-04-11T05:29:59

Josh

 

All call signaling is via TCP. Although there is support for transmission
over UDP in the standard AFAIK no-one has implemented it. 

 

There are pro's and con's either way

TCP is reliable and as you say you can have large message sizes however as
it's a persistent connection and can and does break (for instance with NAT)
and calls do drop.  Just finished a major commit to resolve that issue in
the h323plus stack and if the connection does break then there is an attempt
to reconnect and the call does not drop. UDP signaling guys have been
throwing that around for years to justify using UDP for signaling. 

 

You can add custom messages via the H460_Feature interface. There is a H460
factory loader subsystem which loads your derived class into the signaling.
The H460_Feature class contains message overrides for each signaling
message. You would want to look at deriving you class from H460_FeatureOID
or H460_FeatureNonStd.  To get an idea what to do, have a look at
H460_FeatureStd19 it has most of

H323plus support for UDP signalling

J.C Mercier — 2012-04-11T05:05:49

Hi all,

Just curious, does H323plus support signalling via UDP? If not, what are
the advantages of using TCP signalling over UDP, aside from it being
reliable (considering UDP packets doesn't exceed the UDP size limit for
each message sent, if it's even possible with H323 messages) ?

Another question, is it possible to include generic messages within the
signalling messages (setup, process, alert, connect, facility etc) just as
we can with the h.245 OLC messages?

Thanks in advance for your help and suggestions.

Josh C. M

Re: does H323Plus support H,239? Thanks!

Simon Horne — 2012-04-11T02:07:34

Bo

 

GnuGk fully supports H.239 (most gatekeepers do) and can be used with
H323plus to do H.239. You can do H.239 with or without a gatekeeper.

 

Simon

 

From: h323plus-bounces< at >lists.packetizer.com
[mailto:h323plus-bounces< at >lists.packetizer.com] On Behalf Of Bo Xu
Sent: 11 April 2012 05:41
To: h323plus< at >lists.packetizer.com
Subject: Re: [h323plus] does H323Plus support H,239? Thanks!

 

Hello Simon,

 

Thanks! 

 

could you also tell me if I want to make a H.239-enabled call with H323Plus
terminal, do I also need a H.239-enabled gate-keeper? or I can use one
H323Plus to make a H.239-enabled call to another H323plus directly?  Thanks!

 

also could you tell me if GnuGK supports H.239? Thanks!

 

Regards,

Bo

 

 

 

 

 

 

 

 

On Wed, Apr 4, 2012 at 7:48 PM, Simon Horne <s.horne< at >packetizer.com> wrote:

Yes

 

From: h323plus-bounces< at >lists.packetizer.com
[mailto:h323plus-bounces< at >lists.packetizer.com] On Behalf Of Bo Xu
Sent: 05 April 2012 00:52
To: h323plus< at >lists.packetizer.com
Subject: [h323plu

Re: does H323Plus support H,239? Thanks!

Bo Xu — 2012-04-10T19:40:53

Hello Simon,

Thanks!

could you also tell me if I want to make a H.239-enabled call with H323Plus
terminal, do I also need a H.239-enabled gate-keeper? or I can use one
H323Plus to make a H.239-enabled call to another H323plus directly?  Thanks!

also could you tell me if GnuGK supports H.239? Thanks!

Regards,
Bo









On Wed, Apr 4, 2012 at 7:48 PM, Simon Horne <s.horne< at >packetizer.com> wrote:

Re: H323-SIP Gateway with H264 Support

Simon Horne — 2012-04-10T12:03:46

Diego

 

Today I checked into the CVS a compile directive _SIGNAL_ONLY which will
compile the plugin without dependencies on FFMPEG or X264.  You only need
h264-x264.h/.cxx. You can use this in conjunction with _STATIC_LINK to build
a static library to statically link the codec into the h323plus library.

http://h323plus.cvs.sourceforge.net/viewvc/h323plus/h323plus/plugins/video/H
.264/

You will need to configure the makefile.in with these switches (not done
yet)

 

Also G.722 has serious interop issues. Mainly due to IMHO an error in the
RFC. Although the codec is a 16k codec the RTP timestamps are incremented as
8k in the RFC. On the H.323 side they almost always use a 16k timestamp
while on the SIP side it's mostly 8k. 

 

Simon

 

From: h323plus-bounces< at >lists.packetizer.com
[mailto:h323plus-bounces< at >lists.packetizer.com] On Behalf Of Diego Carvalho
Sent: 10 April 2012 04:41
To: h323plus< at >lists.packetizer.com
Subject: Re: [h323plus] H323-SIP Gateway with H264 Support

 

Hi Simon, thanks a lot for you

Re: H323-SIP Gateway with H264 Support

Diego Carvalho — 2012-04-09T18:40:41

Hi Simon, thanks a lot for you help, but I will have to bother you again.
Now I could compile the H264 plugin after remove the code you told me but I
couldn't make my program load it. I tried 3 different things: first I put
the .so and the help in the same folder as my app, second I tried to
install the plugins in the default folder (/usr/local/lib/opal-1.24.0/) and
finally I tried to set PWLIBPLUGINDIR. None of these worked. I also tried
to load the G722 plugin and at least this one should work because I didn't
change it. Am I missing something?
I also tried to enable the stack's log. At first glance, it didn't show
anything about plugins. Then I used the following code, from Simple app:

PDirectory DefaultDir = PProcess::Current().GetFile().GetDirectory();
PPluginManager & pluginMgr = PPluginManager::GetPluginManager();
pluginMgr.LoadPluginDirectory(DefaultDir);

This makes the app loads the plugins from the current directory. After this
the log shows:

2012/04/09 11:08:17.701    4       pluginmgr.cxx(96)

Re: H323plus problem : Use of non IP transport address:" "

Ashwani Kumar — 2012-04-09T09:57:26

H323plus problem : Use of non IP transport address: " "

Ashwani Kumar — 2012-04-07T13:05:57

Hi Simon,

I have implemented the code to read remote parameters as given in h323con.h
+1517



*         H323Channel * MyConnection::CreateRealTimeLogicalChannel(
                                        const H323Capability & capability,
                                        H323Channel::Directions dir,
                                        unsigned sessionID,
                                        const
H245_H2250LogicalChannelParameters * param,
                                        RTP_QOS * rtpqos)
         {
           return new H323_ExternalRTPChannel(*this, capability, dir,
sessionID,
                                              externalIpAddress,
externalPort);
         }

         PBoolean OnStartLogicalChannel(H323Channel & channel)
         {
           H323_ExternalRTPChannel & external = (H323_ExternalRTPChannel
&)channel;
           external.GetRemoteAddress(remoteIpAddress, remotePort);
         }


*I am able to read remote end ip and port numbers.

But After implementation of the a

Re: Need help to read Remote Port numbers in simph323

Ashwani Kumar — 2012-04-05T18:49:51

Hi Simon,


My Compilation problem has solved.

I have implement the code same way as explained in h323con.h +1528 file.

modified main.cxx (simph323) code is given below:

PBoolean SimpleH323Connection::OnStartLogicalChannel(H323Channel & channel)
{
  if (!H323Connection::OnStartLogicalChannel(channel))
    return FALSE;

  cout << "I am on Started logical channel: \n";

        PIPSocket::Address ip;
        WORD dataPort;

  switch (channel.GetDirection()) {
    case H323Channel::IsTransmitter :
     cout << "sending ";
      break;

    case H323Channel::IsReceiver :
      cout << "AK:receiving ";
      break;

    default :
      break;
  }

  cout << channel.GetCapability() << endl;

*
  H323_ExternalRTPChannel & external = (H323_ExternalRTPChannel &)channel;

  cout << "H323_ExternalRTPChannel params**\n";

        if(external.GetSessionID()==1) {
         external.GetRemoteAddress(ip, dataPort);
        }
*
   *cout << "***********Remote IP =\n" << ip;**
   cout << "***********Remote dataPort=\n" <<

Re: Need help to read Remote Port numbers in simph323

Ashwani Kumar — 2012-04-05T14:14:16

Re: does H323Plus support H,239? Thanks!

Simon Horne — 2012-04-04T23:48:04

Yes

From: h323plus-bounces< at >lists.packetizer.com
[mailto:h323plus-bounces< at >lists.packetizer.com] On Behalf Of Bo Xu
Sent: 05 April 2012 00:52
To: h323plus< at >lists.packetizer.com
Subject: [h323plus] does H323Plus support H,239? Thanks!

Hello,

could you tell me id H323Plus support H,239? Thanks!

Regards,

Bo