- h323plus - lists.packetizer.com

h323plus and video codecs
by Vladimir Fekete 07 Jan '11

07 Jan '11

Hello all, I'd like to ask you for help/hint about video codecs in h323plus (v1.22). Since I'm new I'm not sure I understand everything correctly. What I want to do : I don't have a camera, but I'd like to be able to send some video through the net (between/using 2 MyPhone applications as endpoints). Thanks to other tutorials I was able to rewrite the OpenAudioChannel, so I was able to transmit wav file. I hoped it will be equally "easy" for the video. Unfortunately, for MyPhone … [View More]

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Facility transportedInformation vs empty
by Mark Fawcett 06 Jan '11

06 Jan '11

All, When running h323plus against various endpoints, h323plus always seems to use the Facility + empty h323-message-body method of sending messages (such as an H245 MSD) as opposed to the transportedInformation Facility method. (At least according to Wireshark.) I'm running h323plus reporting a protocol identifier of 0.0.8.2250.0.6 (Version 6). I've tested against endpoints running V4 (so I would potentially expect a drop down to the older style of working) and ones reporting themselves as … [View More]

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GNU Gatekeeper release 2.3.4
by Jan Willamowius 04 Jan '11

04 Jan '11

Hi all, the GNU Gatekeeper version 2.3.4 has been released. http://www.gnugk.org/gnugk-2-3-4.html This is mainly a bugfix release for proxy mode selection, H.460.18/.19 and bandwidth management. Regards, Jan -- Jan Willamowius, Founder of the GNU Gatekeeper Project EMail : jan(a)willamowius.de Website: http://www.gnugk.org Support: http://www.willamowius.de/gnugk-support.html Changes from 2.3.3 to 2.3.4 =========================== - BUGFIX(Toolkit.cxx) fix handling of ModeSelection … [View More]

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Re: [h323plus] enabling DirectShow video input
by Alessandro Angeli 05 Dec '10

05 Dec '10

From: "Alessandro Angeli" <packetizer.com(a)riseoftheants.com> Date: Tuesday 02 November 2010 18:26 > It seems to (almost) work now. Both endpoints see the webcams and both > load the Vic H.261 plugin (but not the ffmpeg H.263 one). However, the > server side (-n -l) only receives the video while the client side (-n > <host>) neither sends not receives. Audio and text are fine. I figured it out. The value of CLSID_SampleGrabber in vidinput_directx2.cxx is wrong (… [View More]

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Bandwidth Control during conference
by kc ooi 26 Nov '10

26 Nov '10

Dear all h323plus member, Is there any function that allow for bandwidth changing during conference undergoing? For example, if I initial a conference with bandwidth 768kbits, I want to limit my bandwidth to 512kbits during conference. How I can do this? Thanks.

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Transfer call
by Igor Pavlov 14 Nov '10

14 Nov '10

Hi, I am using H323Connection::TransferCall() and capture network packets with Wireshark, so when transfering the call in wireshark I see Malformed Packet ( CS : empty [Malformed Packet] ) The problem in these strings (in h450pdu.cxx in function H450ServiceAPDU::BuildCallTransferInitiate()) invoke.IncludeOptionalField(X880_Invoke::e_argument); invoke.m_argument.EncodeSubType(argument); If I comment these strings then I see just CS : Empty. And of course have no transfer of call. I have … [View More]

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Re: [h323plus] enabling DirectShow video input
by Alessandro Angeli 02 Nov '10

02 Nov '10

From: "Robert Jongbloed" <robert.jongbloed(a)bigpond.com> Date: Tuesday 02 November 2010 19:17 >> The "Linker/General/Output File" of "SVN Get Revision" is now set to >> >> $(SolutionDir)/svn_getrev.exe >> >> which creates a invalid path: the / should be removed or at least >> replaced with a \. > > While I find it strange that this has worked for me for I do not know > how long, I never had this problem before either, but it makes sense: $(… [View More]

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enabling DirectShow video input
by Alessandro Angeli 02 Nov '10

02 Nov '10

I successfully built the debug configurations of ptlib 2.4.5 (static), h323plus 1.21.0 and simpleplus 1.21.0 in VS2008SP1 + WinSDK 7.1 on Win7/x64. Audio and text work fine. However, video does not work: "No Video Grabber available Disabling Video Support!". DirectShow support in vidinput_directx.cxx is compiled successfully and the DirectShow branches in simpleplus/main.cxx are active, since P_DIRECTSHOW is #define'd as 1 in ptbuildopts.h. I tried #define'ing P_DSHOW to 1 as well in … [View More]

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calling the OpenVideoChannel function
by Isaac Kazadi 31 Oct '10

31 Oct '10

Hi all, I know there have been a few questions regarding this matter and i've looked throught the mailing list and didn't quite find the answer for it unless i missed it. I've downloaded and compiled ptlib 2.8.1 and the latest h323plus cvs and simpleh323, all seems to work fine except i've noticed that the every overriden functions from h323Endpoint are being called but the OpenVideoChannel/ OpenExtendedVideoChannel functions aren't getting called at all. I've checked and can confirm that … [View More]

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Bridging two H.323 calls together
by Mark Fawcett 27 Oct '10

27 Oct '10

All, I have successfully installed and used H.323plus and am very impressed by the strength-in-depth. I am building a B2BUA application and can make two outgoing calls and now need to switch the audio between them. I have done this initially using a new channel class derived from PIndirectChannel and taking audio data on the Write from one channel, buffering it internally in the application and then sending it to the other channel on its Read. I am wondering if there is a better or … [View More]

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