- h323plus - lists.packetizer.com

How to add a generic Video Capability?
by Abhishek Rohilla 17 Jan '08

17 Jan '08

Hi I have been able to build mpeg4 plugin code taken from opal cvs. Its PluginCodec Definition has defined it as type PluginCodec_H323Codec_nonStandard. I have changed it to PluginCodec_H323Codec_generic and compiled it. Should mpeg4 capability be added as generic or non-standard? What is the difference between two? My application is loading the dll perfectly fine now but the capabilities are not being added because of the following reasons: 1.) Generic and non-standard video capabilties require *h323CapabilityData(last member in PluginCodec_Definition) to point to generic capability data info. This has not been defined in opal plugin code. 2.) H323Capability *CreateGenericVideoCap() is checking for PluginCodec_H323GenericCodecData in **PluginCodec_Definition and it is null currently ,so capability is not created *Can someone help me in how to define generic capability data and what all information it needs? I have recognized the structures in opalplugins.h but don't know how to fill them with suitable values for mpeg4 plugin. Please help Thanks *** *

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Caller ID Problem
by Kirav Patel 17 Jan '08

17 Jan '08

Hi, We have built Open H.323 based application which can dial about 100 numbers paralleled. We are trying to configuring Caller ID so all dialed numbers can see Caller ID. And to set it, we are using 'AddAliasName' function. Now when application dials to all numbers, some numbers can see Caller ID, some can not see. This is a kind of random behavior we are facing. We are setting same 'Alias' for multiple H.323 Endpoints - We are creating multiple H.323Endpoints and get them register with GK. We are using GnuGK in proxy mode and Soft switch is ahead to that. Now we want to know is this giving us trouble or there is some other mechanism should set up in order to set customized 'Alias' (Caller ID) at Endpoint? Any help or suggestion will be appreciated. Thanks in Advance, Kirav Patel No virus found in this outgoing message. Checked by AVG. Version: 7.5.516 / Virus Database: 269.19.5/1228 - Release Date: 1/16/2008 9:01 AM

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Presence support in h323plus (and GnuGk)
by Simon Horne 15 Jan '08

15 Jan '08

Guys I have made the first submission to the ITU on presence and have now added the basic code support to h323plus. It is hoped to have the support for it in GnuGk 2.2.8 (one after next release) The ITU submission for a bit of light reading. :-) http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0801_Seo/AVD-3293.zip Simon ==================== Simon Horne email. s.horne(a)isvo.net Principal Maintainer h323plus Library Consulting and Contracting consulting(a)h323plus.org. ========================

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Failed to set video capability in my video conference based on openh323
by 柳溟 15 Jan '08

15 Jan '08

Hi everybody, I am developing a video conference based on openh323, right now, I failed to set video capability in my system. I wrote a new class named HMH323_H261Capability, derived from H323_H261Capability. class HMH323_H261Capability : public H323_H261Capability { PCLASSINFO(HMH323_H261Capability, H323_H261Capability) public: HMH323_H261Capability(unsigned qcifMPI, unsigned cifMPI, BOOL temporalSpatialTradeOff=TRUE, BOOL stillImageTransmission=FALSE, unsigned maxBitRate=850); virtual PObject *Clone()const; virtual H323Codec *CreateCodec(H323Codec::Direction direction) const; }; When the program begin, I use SetCapability (0, 1, new HMH323_H261Capability (0, 1, TRUE, FALSE, 8192)); and the program runs OK, However, when I connect MCU by calling H323EndPoint::MakeCall(remoteParty, NULL, token, userData); the program throw exception and exit. Here is the call stack KERNEL32! 7c812a5b() MSVCRTD! _CxxThrowException@8 + 57 bytes MSVCRTD! __RTDynamicCast + 383 bytes H323Capability::Compare(const PObject & {...}) line 427 + 23 bytes PObject::operator==(const PObject & {...}) line 1452 + 22 bytes H323Capabilities::FindCapability(const H323Capability & {...}) line 2075 + 26 bytes H323Capabilities::Merge(const H323Capabilities & {...}) line 2375 + 21 bytes H323Connection::OnReceivedCapabilitySet(const H323Capabilities & {...}, const H245_MultiplexCapability * 0x013f2c44, H245_TerminalCapabilitySetReject & {...}) line 4315 + 18 bytes H245NegTerminalCapabilitySet::HandleIncoming(const H245_TerminalCapabilitySet & {...}) line 603 + 48 bytes H323Connection::OnH245Request(const H323ControlPDU & {...}) line 3784 + 18 bytes H323Connection::HandleControlPDU(const H323ControlPDU & {...}) line 3742 + 18 bytes H323Connection::HandleControlData(PPER_Stream & {...}) line 3726 + 18 bytes H323Connection::HandleControlChannel() line 3666 + 18 bytes H245TransportThread::Main() line 599 PTLIBD! PThread::MainFunction(void *) line 1168 _threadstartex(void * 0x013e8ce0) line 212 + 13 bytes KERNEL32! 7c80b683() In the H323Capability::Compare PObject::Comparison H323Capability::Compare(const PObject & obj) const { PAssert(PIsDescendant(&obj, H323Capability), PInvalidCast);-->Failed Can anyone tell me the problem?

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Re: [h323plus] Problem with Logitech camera
by JF NP 15 Jan '08

15 Jan '08

Hi, Is it possible to have DirectShow enabled on native Windows simply by defining P_DIRECTSHOW in ptbuildopts.h? Is it necessary any other work? Br, ----- Mensaje original ---- De: Simon Horne <s.horne(a)packetizer.com> Para: JF NP <jfnp090274(a)yahoo.es> CC: H323plus <h323plus(a)lists.packetizer.com> Enviado: miércoles, 9 de enero, 2008 19:29:51 Asunto: RE: [h323plus] Problem with Logitech camera I will try and have stable release out within the next couple of weeks. Simon > -----Original Message----- > From: h323plus-bounces(a)lists.packetizer.com > [mailto:h323plus-bounces@lists.packetizer.com]On Behalf Of JF NP > Sent: Wednesday, January 09, 2008 11:35 PM > To: H323plus > Subject: Re: [h323plus] Problem with Logitech camera > > > Hi, Simon: > > Do you know when will the next version (with > DirectShow support) be released? > > BR, > > --- Simon Horne <s.horne(a)packetizer.com> escribió: > > > > > JP > > > > The problem is that not all windows webcams are > > supported with the existing > > VideoForWindows. Directshow fixes that unfortunately > > for pwlib 1.12 it is > > only available with mingw compilations for windows. > > I have checked a bit of > > work to allow it to be compiled with Visual Studio > > however that is in PTLib. > > Once we migrate to PTlib and release the stable > > version of h323plus the > > problem should be rectified. > > > > Simon > > > > > -----Original Message----- > > > From: h323plus-bounces(a)lists.packetizer.com > > > [mailto:h323plus-bounces@lists.packetizer.com]On > > Behalf Of JF NP > > > Sent: Wednesday, January 09, 2008 8:00 PM > > > To: h323plus(a)lists.packetizer.com > > > Subject: [h323plus] Problem with Logitech camera > > > > > > > > > Hi, > > > > > > I have a Logitech Communicate STX webcam, but I > > cannot > > > make it work with h323plus. I've attached a trace > > from > > > vidtest. Could anybody help me? > > > My computer runs Windows XP SP 2 (Spanish). > > > > > > Thanks in advance, > > > > > > > > > > > > ______________________________________________ > > > Web Revelación Yahoo! 2007: > > > Premio Favorita del Público. > > > > > > http://es.promotions.yahoo.com/revelacion2007/favoritos/ > > > > > > > > > ______________________________________________ > Web Revelación Yahoo! 2007: > Premio Favorita del Público. > http://es.promotions.yahoo.com/revelacion2007/favoritos/ ______________________________________________ Web Revelación Yahoo! 2007: Premio Favorita del Público. http://es.promotions.yahoo.com/revelacion2007/favoritos/

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MPEG4 Video Plugin
by Abhishek Rohilla 15 Jan '08

15 Jan '08

Hi I have to write a MPEG4 plugin for h323. Can anyone advise how I should start with it? I have seen the mpeg4 plugin on opal. It uses lot of ffmpeg files which is confusing me. I had tried to compile it but the plugin is giving linking errors for ffmpeg calls. Please help Thanks

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Re: [h323plus] Question about plugin codecs
by JF NP 15 Jan '08

15 Jan '08

Hi, When I said "all works fine", I refered to the loading of plugins, I have not tested Myphone2 with a videocall, so I have not seen the bug on CVideoOutputDevice. BTW, thank you Simon for your help regarding my OCX (MFC) problem. Now, all the plugins are loaded. Anyway, if I can solve the CVideoOutputDevice bug, I will contribute the solution to the community. Best regards, ----- Mensaje original ---- De: Simon Horne <s.horne(a)packetizer.com> Para: JF NP <jfnp090274(a)yahoo.es>; h323plus(a)lists.packetizer.com Enviado: viernes, 11 de enero, 2008 9:55:38 Asunto: RE: [h323plus] Question about plugin codecs What type of OCX is it? MFC or ATL. Its important as they behave differently with plugins. The problem is that the default directory for Ptlib when using COM (.ocx) is the desktop. Which is really annoying. In ATL you need to do the following in your H323EndPoint contructor PPluginManager & pluginMgr = PPluginManager::GetPluginManager(); pluginMgr.LoadPluginDirectory(pluginDir); This will load the plugins from that directory. If you are using MFC as with the case of MyPhone2 then there is a little more complicated so look at MyPhone2's CMyPhoneEndPoint() constructor to see how the plugins are loaded. Also you mentioned that you have MyPhone2 working with PtLib. Currently the CVS's MyPhone2 CVideoOutputDevice class is broken and does not display the video output correctly. It's a know problem that I have not yet got around to fixing. A small contribution back to the project on this would be appreciated for the benefit of the community. Simon -----Original Message----- From: h323plus-bounces(a)lists.packetizer.com [mailto:h323plus-bounces@lists.packetizer.com]On Behalf Of JF NP Sent: Friday, January 11, 2008 12:30 AM To: h323plus(a)lists.packetizer.com Subject: [h323plus] Question about plugin codecs Hi all, I have successfully compiled both PTLib and H323Plus on Windows. I've also compiled and tested MyPhone2. All goes fine. But I have another sample app written by myself that is an OCX (which links with PTLib and H323Plus) that manages all the H323 stuff and an EXE that uses the OCX to make a simple videocall. The problem is that my app cannot find the plugin codecs (neither audio nor video). I think that the problem could be related to the fact that I am using an OCX linked with PTLib, instead of an EXE. Is this correct? Is there any solution or workaround? Best regards, Web Revelación Yahoo! 2007: Premio Favorita del Público - ¡Vota tu preferida! ______________________________________________ Web Revelación Yahoo! 2007: Premio Favorita del Público. http://es.promotions.yahoo.com/revelacion2007/favoritos/

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can't compile pwlib/ptlib 1.12.0
by Frank Fischer 15 Jan '08

15 Jan '08

Hi all i'm struck with compile pwlib/ptlib 1.12.0 under VS 2003 (WinXP). Earlier versions of pwlib work great (and i compiled them without problems for years... so i'm quite irritated now), but with 1.12.0, no matter whether i get it from the h323plus website or from the openh323 download page at sourceforge i get problems. Just to make sure i'm not on the completly wrong: In the voxgratia "how to build pwlib" it says there is a project call "Console" in the pwlib.sln. Well, that's not true, there's just a "PWLib static" project which i guess must be the right one to compile. The "Console" project is still in the source but under "ptlib\src\ptlib\msos" as an "old" PTLib.dsp project. Now when compiling the "PWLib static" project, i get a lot of syntax errors. When compiling the "Console" project, the only error is, that "./podbc.cxx" may not be found (in fact it's not at the place the path points to). Now as my first question: which project shall i try to compile? And, is there anything to configure in advance, any options to be set (i added the FelxBison dir to the executable path, same with the PWLib dirs)? Thanks for your help Frank

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FECC H.224/H.281 Implementation
by mohammad alam 14 Jan '08

14 Jan '08

hi Simon As you suggested I have added H323_H224Capability(). The brief code is H323_H224Capability *p = new H323_H224Capability(); capabilities.Add(p); in a class derived from H323EndPoint. The watch window here doesnot show much. But exe crashes in BOOL H323_H224Channel::Start() at h224Handler->StartTransmit(); I think it is not getting pointer right Can you guide me from there. alam.

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PTLib compile errors
by Nyamul Hassan 13 Jan '08

13 Jan '08

Hi, I apologize beforehand if this is not the right list to ask questions on this topic. I had just tried unsuccessfully to compile PTLIB version 1.19.5 as downloaded from the H323+ website. I get 47 errors all on sound_directsound.h and sound_directsound.cx. I'm using MS VS.Net (running as administrator) on Windows Vista. Could someone please point to me what I might be doing wrong? Regards HASSAN

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