- h323plus - lists.packetizer.com

Re: [h323plus] H323 error codes
by mayank＠in.niksun.com 19 Sep '08

19 Sep '08

Thanks a lot Robert for your prompt response. I got confused with your answer. Actually I posted 2 questions so the answer if of which question. The 2 questions are Actually I am looking for error codes in H323 protocols. 1) In H225/Q931 what could be the error codes. Is these error codes comes along with the last message "Release complete message" ? are in between the call.I am able to find these kind of codes specifically in SIP with the response messages with their numbers(Ex:400,500,..),similarly the case with the MGCP protocol.But,I am very much confused with the H.323. 2)What could be the case with the H.245 protocol. On Friday 19 Sep 2008 12:24:00 pm Robert Jongbloed wrote: > Pretty sure it doesn't. > > > Robert Jongbloed > OPAL/OpenH323/PTLib Architect and Co-founder. > > > -----Original Message----- > > From: h323plus-bounces(a)lists.packetizer.com [mailto:h323plus- > > bounces(a)lists.packetizer.com] On Behalf Of mayank(a)in.niksun.com > > Sent: Friday, 19 September 2008 4:32 PM > > To: h323plus(a)lists.packetizer.com > > Subject: [h323plus] H323 error codes > > > > Hi all, > > > > In Q931 protocol is it necessary that the cause code will come in > > last > > message. Does H245 contains the cause codes. > > Thanks > > Mayank Jain -- ---------------------------------------------------------------------------- Regards Mayank Jain Nawal mayank(a)in.niksun.com http://www.niksun.com Tel: +91 9818390836 +91 124-2316012(109)

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H323 error codes
by mayank＠in.niksun.com 19 Sep '08

19 Sep '08

Hi all, In Q931 protocol is it necessary that the cause code will come in last message. Does H245 contains the cause codes. Thanks Mayank Jain

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(no subject)
by mayank＠in.niksun.com 19 Sep '08

19 Sep '08

-- ---------------------------------------------------------------------------- Regards Mayank Jain Nawal mayank(a)in.niksun.com http://www.niksun.com Tel: +91 9818390836 +91 124-2316012(109)

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Cosmetic issues PTLib v2.0.1 with VS2008-SP1
by Marcos Fábio Jardini 09 Sep '08

09 Sep '08

Hello Reporting some cosmetic issues during compiling PTLib on VS2008-SP1. The files: vsdl.cxx pvfiledev.cxx pstun.cxx Have the macro '#define P_FORCE_STATIC_PLUGIN', the VS compiler outputs: 1>..\..\ptclib\{one of above} : warning C4603: 'P_FORCE_STATIC_PLUGIN' : macro is not defined or definition is different after precompiled header use 1> Add macro to precompiled header instead of defining here 1> ..\..\ptclib\{one of above} : use of precompiled header But the <ptlib/pluginmgr.h> includes <ptlib/plugin.h>, the later already define 'P_FORCE_STATIC_PLUGIN' when compiling under _WIN32. So remove or comment the #define P_FORCE_STATIC_PLUGIN from: vsdl.cxx pvfiledev.cxx pstun.cxx //============================ sockets.cxx The '#include <ptlib.h>' is the pre-compiled header and MUST come 1st so, changing '#include <ptlib.h>' to come before '#ifdef __NUCLEUS_PLUS__' >>>before: #ifdef __NUCLEUS_PLUS__ #include <ConfigurationClass.h> #endif #include <ptlib.h> >>>after: #include <ptlib.h> #ifdef __NUCLEUS_PLUS__ #include <ConfigurationClass.h> #endif //============================ Error: sphelper.h(1170) GetUserDefaultUILanguage(): identifier not found Configure is using c:\program files\microsoft sdks\windows\v6.0a\ for Located Speech API compile without speech support. -- ----- Jogue RPG, alimente o lado criativo!

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Registering with the GnuGK - continued
by Amnon David 03 Sep '08

03 Sep '08

Hard coding the authenticator.Enable (as shown bellow) solves the registration problem. Obviously this is not good - any ideas why authenticator.IsCapability returns the wrong result in the "simple" sample application ? BOOL H323Gatekeeper::OnReceiveGatekeeperConfirm(const H225_GatekeeperConfirm & gcf) { if (!H225_RAS::OnReceiveGatekeeperConfirm(gcf)) return FALSE; PINDEX i; for (i = 0; i < authenticators.GetSize(); i++) { H235Authenticator & authenticator = authenticators[i]; if (authenticator.UseGkAndEpIdentifiers()) authenticator.SetRemoteId(gatekeeperIdentifier); } if (gcf.HasOptionalField(H225_GatekeeperConfirm::e_authenticationMode) && gcf.HasOptionalField(H225_GatekeeperConfirm::e_algorithmOID)) { for (i = 0; i < authenticators.GetSize(); i++) { H235Authenticator & authenticator = authenticators[i]; authenticator.Enable( TRUE /*authenticator.IsCapability(gcf.m_authenticationMode, // <<<< This makes it work gcf.m_algorithmOID)*/); PTRACE(4,"RAS\tAuthenticator " << authenticator.GetName() << (authenticator.IsActive() ? " ACTIVATED" : " disabled")); } }

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Re: [h323plus] Multicast
by Troy 28 Aug '08

28 Aug '08

Thanks for your input Marcos. I have already looked at OpenMCU but it seems to be too different from what is required for a decentralised conference. As I recall, the signalling involved in OpenMCU is the default behaviour of the base classes for the most part. It wasn't clear to me how to change the signalling to identify distributed multicast but I'm still researching this. But the biggest question I have is how difficult it will be to add multicast capability to the library. Is it as simple as joining a multicast group if the network address is a multicast address and having everything else basically just work (same code to send/receive on an established multicast socket as for a UDP unicast socket) or is there more to it than that... maybe some additional management associated with H.323/H.245/H225.0/???? under this circumstance? So nobody else can provide any pointers/opinions? Troy. On Wed, 2008-08-20 at 09:26 -0300, Marcos Fábio Jardini wrote: > Hi Troy > > Try see "http://www.packetizer.com/ipmc/h323/whatsnew_v4.html - > Multiplexed Stream Transmission" for some hint > > In your case each endpoint must act as a MCU, what is need is to > investigate the recomendations and see if more than one of end-point > can signal herselfs as MCU capanility > > See the OpenMCU implementation as the begining point of how implement > the mcu capable signaling. > > Another good point is our CVS > (http://sourceforge.net/cvs/?group_id=194599) there you can see other > reference implementations, like NAT/Firewall Traversal etc. > > PS.: is not necessary to create a 'trash' account for this group, is > not a group with many messages and we have no problems with spam > > 2008/8/18 Junk-Mail Wastebasket <blindDrop(a)shaw.ca> > Greetings H323Plus devs. > > I have need of an ability to support a conference where each > end-point can/will manipulate the audio stream coming from > every other end-point based on some data associated with each > end-point. To me, it seems like each end-point should > multicast the audio stream and possibly the data that each > other end-point will use to modify the audio stream. Each > end-point should listen for multicasts associated with the > conference and modify and mix the streams as required based on > the data. From my internet searches, this seems to be more or > less the classic decentralised/distributed multipoint > conference. > > I have attempted to search the mailing list archives and code > for how to do this with H323 Plus and have found that the > capability appears to be lacking. Although I am willing to > work on developing this capability, I am far from expert on > H323 (Plus or otherwise) or VoIP and would need some strong > pointers from those of you who are expert. I would appreciate > some input on how best to proceed to get the functionality for > which I'm looking. > > Your suggestions would be most welcome, > > Troy. > > > > -- > ----- > Jogue RPG, alimente o lado criativo! >

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How to enable P_DIRECTSHOW in ptlib
by JobsGuo 27 Aug '08

27 Aug '08

hi: Anyone know how to enable P_DIRECTSHOW? Although I have install Directshow SDK and set the directory in vs2003, when I complie the ptlib,the P_DIRECTSHOW is still undef in ptbuildopts.h.then it cannot support DirectShow. who can help me to make the P_DIRECTSHOW is defined? thanks! 2008-08-27 JobsGuo

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silly question but...
by Amnon David 24 Aug '08

24 Aug '08

Has anyone ever managed to register with the GNU Gatekeeper using the "simple" sample application ? Whichever method I try, I get a SecurityDenial from the Gatekeeper Will appreciate any help on this -Amnon

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Multicast
by Junk-Mail Wastebasket 20 Aug '08

20 Aug '08

Greetings H323Plus devs. I have need of an ability to support a conference where each end-point can/will manipulate the audio stream coming from every other end-point based on some data associated with each end-point. To me, it seems like each end-point should multicast the audio stream and possibly the data that each other end-point will use to modify the audio stream. Each end-point should listen for multicasts associated with the conference and modify and mix the streams as required based on the data. From my internet searches, this seems to be more or less the classic decentralised/distributed multipoint conference. I have attempted to search the mailing list archives and code for how to do this with H323 Plus and have found that the capability appears to be lacking. Although I am willing to work on developing this capability, I am far from expert on H323 (Plus or otherwise) or VoIP and would need some strong pointers from those of you who are expert. I would appreciate some input on how best to proceed to get the functionality for which I'm looking. Your suggestions would be most welcome, Troy.

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Bitrate Fluctuations
by Adrien Rudulier 19 Aug '08

19 Aug '08

When I am connected to OpenMCU using PVX, I notice that the bitrate coming from OpenMCU varies quite a bit. I have the bitrate set to 1920 Mbps but actual call rate is 1856 and the actual bitrate bounces sporadically never hitting the maximum bitrate consistently. Sometimes it goes above the call rate and then back down. Is this something that H323+ handles or is this handled by the codec? __________________________________________________________________ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now at http://ca.toolbar.yahoo.com.

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Shutting down a call manually in OpenMCU
by Adrien Rudulier 06 Aug '08

06 Aug '08

I am trying to manually remove members from a conference from the status web page but I am having troubles closing down the connection properly. I have access to the conference manager and the conference connection. When I call H323Connection::ClearCall(), it severs the connection to the endpoint and the member is removed after ConferenceManager::RemoveMember is called but there is a segmentation fault because the logical channel threads are still running. I keep getting the following assertion failure: 2008/08/06 15:26:39.089 HTTP Service:0xb50f9b90 Message Assertion fail: Transport thread did not terminate, file transports.cxx, line 1355, Error=107 I was wondering if anyone knows how to close down a call properly. __________________________________________________________________ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now at http://ca.toolbar.yahoo.com.

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Noticeable Audio Delay
by Adrien Rudulier 29 Jul '08

29 Jul '08

When I connect to OpenMCU, there is a noticeable audio delay of about 1 second after the video. I was wondering if either OpenMCU or H323plus have a syncronization mechanism. __________________________________________________________________ Instant Messaging, free SMS, sharing photos and more... Try the new Yahoo! Canada Messenger at http://ca.beta.messenger.yahoo.com/

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SetMaxBitRate Problem
by mohammad alam 25 Jul '08

25 Jul '08

Simon I am using SetMaxBitRate in my code to control data flow in Network. I am using codec.SetMaxBitRate(1024 * x); in OpenVideoChannel(...................... Earlier when I was using Openh323 it was functional. Now I cant control codec BitRate through this API. Do I have to make any changes in Plugins.?? Alam

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Re: [h323plus] OpenMCU doesn't mix video
by Adrien Rudulier 23 Jul '08

23 Jul '08

Just to let everybody know, I found the bug in openMCU. When the 4CIF patch was applied, the return value of MCUSimpleVideoMixer::ReadSrcFrame was changed from TRUE to FALSE. -Adrien ----- Original Message ---- From: Adrien Rudulier <rudz04(a)yahoo.ca> To: h323plus(a)lists.packetizer.com Sent: Tuesday, July 22, 2008 3:46:45 PM Subject: [h323plus] OpenMCU doesn't mix video I don't know what happened but openMCU doesn't mix video for me. I was fiddling around getting H.263 at 4CIF to work with PVX and once I got that to work, openMCU no longer mixes video. Everything is fine until the 3rd endpoint connect. The 3rd endpoint then receives the video of a different endpoint and all the video freezes. The video resumes at fullscreen when any endpoint disconnects. I tried removing h323plus, ptlib, and openMCU from my system and reinstalled them with the most recent versions from sourceforge. I was wondering if anybody else is having this problem. ________________________________ Looking for the perfect gift?Give the gift of Flickr! __________________________________________________________________ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now at http://ca.toolbar.yahoo.com.

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OpenAM
by Denis Kochmashev "Enforta" 22 Jul '08

22 Jul '08

Hello! Is it possible to make openam play outgoing message after sending PROGRESS (before CONNECT) and send CONNECT after playing outgoing message to record incoming audio? Thanks.

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OpenMCU doesn't mix video
by Adrien Rudulier 22 Jul '08

22 Jul '08

I don't know what happened but openMCU doesn't mix video for me. I was fiddling around getting H.263 at 4CIF to work with PVX and once I got that to work, openMCU no longer mixes video. Everything is fine until the 3rd endpoint connect. The 3rd endpoint then receives the video of a different endpoint and all the video freezes. The video resumes at fullscreen when any endpoint disconnects. I tried removing h323plus, ptlib, and openMCU from my system and reinstalled them with the most recent versions from sourceforge. I was wondering if anybody else is having this problem. __________________________________________________________________ Be smarter than spam. See how smart SpamGuard is at giving junk email the boot with the All-new Yahoo! Mail. Click on Options in Mail and switch to New Mail today or register for free at http://mail.yahoo.ca

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H.323 Clients
by Adrien Rudulier 16 Jul '08

16 Jul '08

I was wondering if anyone is using an H.323 client with H.263 at 4CIF connecting to openMCU. Also, does MyPhone2 use plugins? Has anybody got MyPhone2 working with H.263? Any response is greatly appreciated. -Adrien __________________________________________________________________ Connect with friends from any web browser - no download required. Try the new Yahoo! Canada Messenger for the Web BETA at http://ca.messenger.yahoo.com/webmessengerpromo.php

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Fw: OpenMCU 4CIF Issues
by Adrien Rudulier 07 Jul '08

07 Jul '08

Simon, I read on a forum that Polycom uses the i263 codec library. It also said that it uses the YUY2( YUV422 ) color space model. I have been trying to convert the decoded YUV422 stream into the YUV420P stream via ptlib but I am having troubles with the YUY2toYUV420PSameSize function in vconvert.cxx crashing during the first execution. Do you have any thoughts on this? ----- Original Message ---- From: Simon Horne <s.horne(a)packetizer.com> To: Adrien Rudulier <rudz04(a)yahoo.ca>; h323plus(a)lists.packetizer.com Sent: Friday, July 4, 2008 6:12:23 PM Subject: RE: [h323plus] OpenMCU 4CIF Issues Adrien BitRate and FrameRate reversed in PacPhone? That a display issue. Well I better fix that. :-) The issue is in the ffmpeg decoder library. From past discussions it a setting issue in the library however the person who found the issue never contributed it back to the project. A contribution to fix the issue from anyone would be very most welcomed. Simon -----Original Message----- From: Adrien Rudulier [mailto:rudz04@yahoo.ca] Sent: Saturday, 5 July 2008 6:41 AM To: Simon Horne; h323plus(a)lists.packetizer.com Subject: Re: [h323plus] OpenMCU 4CIF Issues Simon, I tried using PacPhone v2.0.5 but I couldn't connect to openMCU. I also found that in the Video settings the bitrate and framerate configurations are reversed. Also, I am using an analog HD camera through a usb capture card that supports up to 4CIF but I could only transmit QCIF or VGA. Do you think the error with PVX and OpenMCU is in the ffmpeg decoder, an un-expected header, or some other reason? Adrien ----- Original Message ---- From: Simon Horne <s.horne(a)packetizer.com> To: Adrien Rudulier <rudz04(a)yahoo.ca>; h323plus(a)lists.packetizer.com Sent: Thursday, July 3, 2008 7:59:42 PM Subject: RE: [h323plus] OpenMCU 4CIF Issues Adrien There are known outstanding issues with h323plus H.263 and Polycom PVX and VS7000. If anyone can assist in resolving these issues, a contribution would be greatly appreciated. You can try using PacPhone it supports 4CIF and is built off h323plus. Simon -----Original Message----- From: h323plus-bounces(a)lists.packetizer.com [mailto:h323plus-bounces@lists.packetizer.com]On Behalf Of Adrien Rudulier Sent: Friday, 4 July 2008 6:36 AM To: h323plus(a)lists.packetizer.com Subject: [h323plus] OpenMCU 4CIF Issues I am currently using the newest versions (as of July 2, 2008) of ptlib(2.3.0), h323plus(1.20.5) and openmcu(2.2.4) from cvs on Ubuntu 8.04. I installed the plugins correctly and openmcu runs fine. However when using two polycom pvx clients to connect to openmcu using H.263 at 4CIF for both transmitting and receiving, the video is blocky and very distorted. There is no packet loss, the bitrate is set to 1920 kbps and the frame rate is a constant 30 fps for both transmitting and receiving. I was wondering if the problem is with openmcu or the pvx clients. Has anyone successfully used 4CIF resolution to be clear and smooth? Also, I had to massage the h.263 plugin code to get 4CIF to work with openmcu. Any help would greatly be appreciated. Adrien Rudulier ________________________________ Instant message from any web browser! Try the new Yahoo! Canada Messenger for the Web BETA ________________________________ Instant message from any web browser! Try the new Yahoo! Canada Messenger for the Web BETA __________________________________________________________________ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now at http://ca.toolbar.yahoo.com.

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Re: [h323plus] OpenMCU 4CIF Issues
by Adrien Rudulier 04 Jul '08

04 Jul '08

Simon, I tried using PacPhone v2.0.5 but I couldn't connect to openMCU. I also found that in the Video settings the bitrate and framerate configurations are reversed. Also, I am using an analog HD camera through a usb capture card that supports up to 4CIF but I could only transmit QCIF or VGA. Do you think the error with PVX and OpenMCU is in the ffmpeg decoder, an un-expected header, or some other reason? Adrien ----- Original Message ---- From: Simon Horne <s.horne(a)packetizer.com> To: Adrien Rudulier <rudz04(a)yahoo.ca>; h323plus(a)lists.packetizer.com Sent: Thursday, July 3, 2008 7:59:42 PM Subject: RE: [h323plus] OpenMCU 4CIF Issues Adrien There are known outstanding issues with h323plus H.263 and Polycom PVX and VS7000. If anyone can assist in resolving these issues, a contribution would be greatly appreciated. You can try using PacPhone it supports 4CIF and is built off h323plus. Simon -----Original Message----- From: h323plus-bounces(a)lists.packetizer.com [mailto:h323plus-bounces@lists.packetizer.com]On Behalf Of Adrien Rudulier Sent: Friday, 4 July 2008 6:36 AM To: h323plus(a)lists.packetizer.com Subject: [h323plus] OpenMCU 4CIF Issues I am currently using the newest versions (as of July 2, 2008) of ptlib(2.3.0), h323plus(1.20.5) and openmcu(2.2.4) from cvs on Ubuntu 8.04. I installed the plugins correctly and openmcu runs fine. However when using two polycom pvx clients to connect to openmcu using H.263 at 4CIF for both transmitting and receiving, the video is blocky and very distorted. There is no packet loss, the bitrate is set to 1920 kbps and the frame rate is a constant 30 fps for both transmitting and receiving. I was wondering if the problem is with openmcu or the pvx clients. Has anyone successfully used 4CIF resolution to be clear and smooth? Also, I had to massage the h.263 plugin code to get 4CIF to work with openmcu. Any help would greatly be appreciated. Adrien Rudulier ________________________________ Instant message from any web browser! Try the new Yahoo! Canada Messenger for the Web BETA __________________________________________________________________ Get the name you've always wanted @ymail.com or @rocketmail.com today! Go to http://ca.promos.yahoo.com/jacko/

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OpenMCU 4CIF Issues
by Adrien Rudulier 03 Jul '08

03 Jul '08

I am currently using the newest versions (as of July 2, 2008) of ptlib(2.3.0), h323plus(1.20.5) and openmcu(2.2.4) from cvs on Ubuntu 8.04. I installed the plugins correctly and openmcu runs fine. However when using two polycom pvx clients to connect to openmcu using H.263 at 4CIF for both transmitting and receiving, the video is blocky and very distorted. There is no packet loss, the bitrate is set to 1920 kbps and the frame rate is a constant 30 fps for both transmitting and receiving. I was wondering if the problem is with openmcu or the pvx clients. Has anyone successfully used 4CIF resolution to be clear and smooth? Also, I had to massage the h.263 plugin code to get 4CIF to work with openmcu. Any help would greatly be appreciated. Adrien Rudulier __________________________________________________________________ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now at http://ca.toolbar.yahoo.com.

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Speex Plugins Query
by mohammad alam 26 Jun '08

26 Jun '08

Hi Can anybody tell me the difference between SpeexWide-20.6k and SpeexIETFWide-20.6k. alam

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Re: [h323plus] Crash in Ptlib...........
by Simon Horne 16 Jun '08

16 Jun '08

-----Original Message----- From: mohammad alam [mailto:cheersalam@gmail.com] Sent: Tuesday, June 17, 2008 3:16 AM To: Simon Horne Subject: Re: [h323plus] Crash in Ptlib........... Simon >RemoveCapability(H323Capability::e_ExtendVideo); Yes I can remove but I dont want to.. I am adding H323_h224 capability for Far End Camera Control. Is this the reason for Multiple control channel alam On Mon, Jun 9, 2008 at 12:33 AM, Simon Horne <s.horne(a)packetizer.com> wrote: Alam Sorry for the delay You can disable extended video capability by RemoveCapability(H323Capability::e_ExtendVideo); But I don't think that is the problem. As I mentioned before you are opening 2 control channels somehow. Simon -----Original Message----- From: h323plus-bounces(a)lists.packetizer.com [mailto:h323plus-bounces@lists.packetizer.com]On Behalf Of mohammad alam Sent: Saturday, June 07, 2008 2:35 PM To: H323plus Subject: [h323plus] Crash in Ptlib........... Simon, Robert I am not using H323Connection::OnSendCapabilitySet() Robert, As you suggested I go through my code many times and have taken great care of pointers. I tried to debug the library and I find the reason for PTlib crash. I am not sure.but It solved the problem for me In file h323caps.cxx Line no . 2064 BOOL H323CodecExtendedVideoCapability::OnSendingPDU(H245_VideoCapability & pdu) const { . . . . 1 if (table.GetSize() > 0) { 2 caps.SetSize(table.GetSize()); 3 for (PINDEX i=0; i< table.GetSize(); i++) { 4 H245_VideoCapability vidcap; 5 ((H323VideoCapability &)table[i]).OnSendingPDU(vidcap); 6 caps[i] = vidcap; 7 } 8 } else { 9 caps.SetSize(extCapabilities.GetSize()); 10 for (PINDEX i=0; i< extCapabilities.GetSize(); i++) { 11 H245_VideoCapability vidcap; 12 ((H323VideoCapability &)extCapabilities[i]).OnSendingPDU(vidcap); 13 caps[i] = vidcap; 14 } 15 } Here in line no. 1 if (table.GetSize() > 0) { table.GetSize() does not get initialsed after the end of the call table.GetSize() increases in order 0, 2, 4, 16, 32, 64, 128, 256 and crash........ I am not using Extended channel. But by default plugins add H.263 extended capabilities. How to avoid this?? Where is the problem?? Alam

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回复： dtmf
by Bian 10 Jun '08

10 Jun '08

Thank you. Some H.323 endpoint use in-band signalings method such as NetMeeting, while other endpoint such as Polycom PVX use rfc2833 to transfer DTMF. But I don't know how get DTMF info from PVX's audio RTP packets. The code rfc2833.cxx in h323plus seems can not work with PVX. Hello bian the uso of tones, and other in-band signalings depends of the CODEC support, u must read the documentation about the codec u are using if suport in-band signaling. for example G.729 dont suport in-band tones and fax. tip: http://en.wikipedia.org/wiki/G.711 (at botton of page are the others G7xx.x) ___________________________________________________________ 雅虎邮箱，您的终生邮箱！ http://cn.mail.yahoo.com/

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dtmf
by Bian 09 Jun '08

09 Jun '08

hello, Anybody know how rfc2833(DTMF) is used in H.323 system? I have read source code of rfc2833.cxx in h323plus. But it seems that it can not interoperate with PVX. regards. bian ___________________________________________________________ 雅虎邮箱，您的终生邮箱！ http://cn.mail.yahoo.com/

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Crash in Ptlib...........
by mohammad alam 07 Jun '08

07 Jun '08

Simon, Robert I am not using H323Connection::OnSendCapabilitySet() Robert, As you suggested I go through my code many times and have taken great care of pointers. I tried to debug the library and I find the reason for PTlib crash. I am not sure.but It solved the problem for me In file h323caps.cxx Line no . 2064 BOOL H323CodecExtendedVideoCapability::OnSendingPDU(H245_VideoCapability & pdu) const { . . . . 1 if (table.GetSize() > 0) { 2 caps.SetSize(table.GetSize()); 3 for (PINDEX i=0; i< table.GetSize(); i++) { 4 H245_VideoCapability vidcap; 5 ((H323VideoCapability &)table[i]).OnSendingPDU(vidcap); 6 caps[i] = vidcap; 7 } 8 } else { 9 caps.SetSize(extCapabilities.GetSize()); 10 for (PINDEX i=0; i< extCapabilities.GetSize(); i++) { 11 H245_VideoCapability vidcap; 12 ((H323VideoCapability &)extCapabilities[i]).OnSendingPDU(vidcap); 13 caps[i] = vidcap; 14 } 15 } Here in line no. 1 if (table.GetSize() > 0) { table.GetSize() does not get initialsed after the end of the call table.GetSize() increases in order 0, 2, 4, 16, 32, 64, 128, 256 and crash........ I am not using Extended channel. But by default plugins add H.263 extended capabilities. How to avoid this?? Where is the problem?? Alam

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