- h323plus - lists.packetizer.com

H.263 + Polycom VSX 7000 + VSX 5000 + PVX
by Pablo Sotomayor 12 May '10

12 May '10

I've been testing the 1.2.2 version of h323plus since last friday and got some H.263 problems. On the testing lab we have a quad-core xeon dell poweredge server running ubuntu 10.04. I installed from ubuntu repositories some system dependencies like ffmpeg, ffmpeg-devel (0.52), libx264, libx264-devel (85), libxvidcore4, libxvidcore-dev, libtheora, etc. From libopalvoip sourceforge files i got ptlib 2.66. From h323plus sourceforge cvs repo, got h323plus and applications. I compiled ptlib, set the PTLIBDIR env variable. Then i compiled h323plus and plugins and set the respective env variables too. Then i compiled openmcu. I run openmcu with loglevel 4 or 5, and i can see all the audio/video codec plugins loading. Focusing on the H263 codec testing, i remove h261 and h264 plugins. Running openmcu only with h263 plugin, i can connect polycom vpx an pacphone endpoints at a openmcu conference room with audio and video support. Audio G711ALaw and H263 CIF video. When i connect the polycom VSX 7000, the openmcu seems like sending/receiving network traffic, but the VSX 7000 show 0K/s on video receve rate on call statistics screen. At the other side, on Polycom PVX software, i can see the video incomming from vsx 7000. Im doing something wrong? There is some polycom configuration that i forgot? Im testing with some Polycom VSX 7000A, VSX 7000A(128) and Polycom VSX 5000 with 8.03, 8.53 and 8.71 firmware versions. Is that a plugin/codec or unexpected header issue? Pablo

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H.264 hardware acceleration
by Pablo Sotomayor 10 May '10

10 May '10

It is possible for the openmcu to take advantage of some hardware h264 acceleration devices like these tiny usb dongles (http://www.fastvdo.com/SmartCapture/) or bigger devices like playstation3 runnung linux or the apple iphone/ipad devices? Pablo

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Updated H.264 Plugin
by Simon Horne 09 May '10

09 May '10

An updated H.264 plugin has been added to the CVS. Quite a lot of fixes have been made especially in the HD area. 720p support has been enabled. Simon

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oh323_tut make fails
by Alex Katebi 23 Apr '10

23 Apr '10

Hello everyone, When I tried to make the oh323tut I get the below error. THANKS! Alex akatebi@client:~/share/H323Plus/oh323tut-1.1-1$ make "CFLAGS=-DP_USE_INTEGER_BOOL" g++ -DPTRACING=1 -D_REENTRANT -fno-exceptions -Wall -DNDEBUG -I/home/akatebi/share/H323Plus/ptlib-2.4.5//include -DPTRACING -I/home/akatebi/share/H323Plus/h323plus/include -Os -DP_USE_INTEGER_BOOL -felide-constructors -Wreorder -c ep.cxx -o obj_linux_x86/ep.o g++ -DPTRACING=1 -D_REENTRANT -fno-exceptions -Wall -DNDEBUG -I/home/akatebi/share/H323Plus/ptlib-2.4.5//include -DPTRACING -I/home/akatebi/share/H323Plus/h323plus/include -Os -DP_USE_INTEGER_BOOL -felide-constructors -Wreorder -c oh323tut.cxx -o obj_linux_x86/oh323tut.o g++ -DPTRACING=1 -D_REENTRANT -fno-exceptions -Wall -DNDEBUG -I/home/akatebi/share/H323Plus/ptlib-2.4.5//include -DPTRACING -I/home/akatebi/share/H323Plus/h323plus/include -Os -DP_USE_INTEGER_BOOL -felide-constructors -Wreorder -c nullchan.cxx -o obj_linux_x86/nullchan.o g++ -DPTRACING=1 -D_REENTRANT -fno-exceptions -Wall -DNDEBUG -I/home/akatebi/share/H323Plus/ptlib-2.4.5//include -DPTRACING -I/home/akatebi/share/H323Plus/h323plus/include -Os -DP_USE_INTEGER_BOOL -felide-constructors -Wreorder -c wavchan.cxx -o obj_linux_x86/wavchan.o make -C /home/akatebi/share/H323Plus/ptlib-2.4.5//src/ptlib/unix opt make[1]: Entering directory `/home/akatebi/share/H323Plus/ptlib-2.4.5/src/ptlib/unix' make[1]: *** No rule to make target `opt'. Stop. make[1]: Leaving directory `/home/akatebi/share/H323Plus/ptlib-2.4.5/src/ptlib/unix' make: *** [/home/akatebi/share/H323Plus/ptlib-2.4.5//lib_linux_x86/libpt.so] Error 2

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H.235 Media Encryption Help
by Jad el-Hage 22 Apr '10

22 Apr '10

I am trying to setup secure calls with H.323 endpoints. I am currently testing with polcom PVX. I can negotiate a shared secret using diffie-hellman and the first 8 bytes of the shared secret match the PVX's check code. But how to derive the media encryption keys from the shared secret ? >From H.235.6 I understand that the shared secret must be used to decrypt encryptedSessionKey, but the decryption is failing? Thanks, Jad

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CreateRealTimeLogicalChannel not getting called
by Ashwin Kallaje 01 Apr '10

01 Apr '10

Hi, I am developing a small VideoConferencing application using H.323 version 1.22 from cvs. The Ptlib version is 2.8 My problem is, The CreateRealTimeLogicalChannel is not getting called. The OnStart, OnCreateLogicalChannels and CreateRealTimeLogicalChannel are all getting called, but not the CreateRealTimeLogicalChannel. I am not sure what I need to enable, so that MyH323Connection::CreateRealTimeLogicalChannel, gets called. Thank you Ashwin Kallaje

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openmcu hangs when second client accepts invitation
by Sander 29 Mar '10

29 Mar '10

Dear all, I'm trying to do a three-way videoconferencing with openmcu. After inviting two ekiga clients to the same conference room (from within the webinterface), openmcu hangs. Hangs means: http://10.0.0.1:1420/Status doesn't refresh anymore (reload times out eventually) and openmcu has to be killed with -9. When inviting the first ekiga client, the client sees the openmcu logo as 'remote video', and that client gets listed on the status page. When inviting the second ekiga client to the same room, that client sees it's own video, and 'remote video' is grayed out. If the second client is invited to a different room from the first instead, both clients see the openmcu logo (and openmcu doens't hang and the status page gets refreshed with both clients listed in their rooms). This all happened back in early february too. Now I found the time to try again. I've read al mails in the archive at http://lists.packetizer.com/pipermail/h323plus/ from november 2009 till now, but didn't find a similar case. The system on which all software is compiled and which is running openmcu, is an up to date Debian Sid (unstable) amd64, and selfcompiled kernel 2.6.32-rc6. The clients are a Debian Sid on Intel Core2 Duo and a Debian Sid on ARM (SheevaPlug). How can I debug what happens to openmcu? Or is there an obvious mistake in the steps below? With kind regards, Sander # ldd `which openmcu` linux-vdso.so.1 => (0x00007fff1f1ff000) libh323_linux_x86_64_.so.1.22.0 => /usr/local/h323plus/lib/libh323_linux_x86_64_.so.1.22.0 (0x00007eff1581c000) libresolv.so.2 => /lib/libresolv.so.2 (0x00007eff15606000) libpt.so.2.9-beta0 => /usr/local/ptlib/lib/libpt.so.2.9-beta0 (0x00007eff150c8000) libpthread.so.0 => /lib/libpthread.so.0 (0x00007eff14eac000) librt.so.1 => /lib/librt.so.1 (0x00007eff14ca4000) libexpat.so.1 => /usr/lib/libexpat.so.1 (0x00007eff14a7b000) libdl.so.2 => /lib/libdl.so.2 (0x00007eff14877000) libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007eff14563000) libm.so.6 => /lib/libm.so.6 (0x00007eff142e0000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007eff140ca000) libc.so.6 => /lib/libc.so.6 (0x00007eff13d76000) /lib64/ld-linux-x86-64.so.2 (0x00007eff16278000) http://10.0.0.1:1420/Status (one client): Room Name Room Members Name Duration Codec RTP Packets/Bytes tx RTP Packets/Bytes rx TX Video frame rate/RX Video frame rate conference Sander 2:07.003 G.711-ALaw-64k/G.711-ALaw-64k 6350/1016000 6391/1022560 10.0007/9.68926 H.261-CIF/H.261-CIF The steps: svn checkout svn://svn.ffmpeg.org/ffmpeg/trunk ffmpeg cvs -d:pserver:anonymous@h323plus.cvs.sourceforge.net:/cvsroot/h323plus login cvs -z3 -d:pserver:anonymous@h323plus.cvs.sourceforge.net:/cvsroot/h323plus co h323plus cvs -z3 -d:pserver:anonymous@h323plus.cvs.sourceforge.net:/cvsroot/h323plus co applications svn co http://opalvoip.svn.sourceforge.net/svnroot/opalvoip/ptlib/trunk ptlib svn co http://opalvoip.svn.sourceforge.net/svnroot/opalvoip/opal/trunk opal wget ftp://ftp.videolan.org/pub/videolan/x264/snapshots/x264-snapshot-20100315-2… tar jcf ptlib.tar.bz2 ptlib & tar jcf opal.tar.bz2 opal & tar jcf h323plus.tar.bz2 h323plus & tar jcf extensions.tar.bz2 extensions & tar jcf applications.tar.bz2 applications & tar jcf ffmpeg.tar.bz2 ffmpeg & export PKG_CONFIG_PATH=/usr/local/ffmpeg/lib/pkgconfig:/usr/local/ptlib/lib/pkgconfig export LD_LIBRARY_PATH=/usr/local/ffmpeg/lib:/usr/local/ptlib/lib export PTLIBDIR=/usr/src/h323/ptlib export OPENH323DIR=/usr/src/h323/h323plus export PTLIBPLUGINDIR=/usr/local/ptlib/lib/pwlib cd /usr/src/h323 tar xf x264-snapshot-20100315-2245.tar.bz2 cd x264-snapshot-20100315-2245 ./configure --enable-shared > /dev/null && \ make -j4 > /dev/null && \ make install > /dev/null cd /usr/src/h323 tar xf ffmpeg.tar.bz2 cd ffmpeg ./configure --prefix=/usr/local/ffmpeg --enable-shared --enable-libx264 \ --enable-libtheora --enable-libvorbis --enable-gpl --enable-decoder=h263 \ --enable-decoder=h263i --enable-decoder=h264 --enable-decoder=theora \ --enable-encoder=h263 --enable-encoder=h263p --enable-encoder=libx264 \ --enable-encoder=libtheora && \ make -j4 > /dev/null && \ make install > /dev/null ldconfig cd /usr/src/h323 tar xf ptlib.tar.bz2 cd ptlib export PTLIBDIR=/usr/src/h323/ptlib ./configure --prefix=/usr/local/ptlib && \ make -j4 > /dev/null && \ make install > /dev/null cd /usr/src/h323 tar xf h323plus.tar.bz2 cd h323plus ./configure --prefix=/usr/local/h323plus && \ make -j4 > /dev/null && \ make install > /dev/null cd /usr/local/include ln -s /usr/local/ffmpeg/include/libavcodec/ ffmpeg cd /usr/src/h323 cd extensions/plugins ./configure --prefix=/usr/local/ptlib && \ make -j4 > /dev/null && \ make install > /dev/null cp -a /usr/local/ptlib/lib/pwlib /usr/local/ cd /usr/src/h323 tar xf applications.tar.bz2 cd applications/openmcu/ make -j4 > /dev/null && \ make install > /dev/null /etc/ld.so.conf.d/openmcu.conf: /usr/local/h323plus/lib cd /usr/local/ptlib/lib/pwlib/ ln -s /usr/local/ffmpeg/lib/libavcodec.so ldconfig cd /bin/openmcu -d -- Humilis IT Services and Solutions http://www.humilis.net

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H264 PLUGIN in H323Plus
by ooi khai chin 19 Mar '10

19 Mar '10

Hi All, In my latest status, I able to have the conference with polycom and other softphone using H.264 plugin. But I face the problem of delaying (my movement only show on the other endpoint after around 5 seconds in local network). I think this problem occur because of fragmentation of 1 encoded picture that has size greater than 1.4KB to multiple slices, then sent it out. Currently, my default frame rate is 10fps. My question is how to solve the delaying problem because I see polycom PVX 8.0.2 and other softphone do not have any delay? Another question, If my default frame rate is 10fps, is it means that my program will call Codec Encode function 10 times in a second? As I know, inside the encode function, every time it will check for remanding frame length for last packet, if exist it repeatably packet it with size less than 1.4KB until finish, then it only start to encode a new frame. So, Let say I have one encoded picture that consist of 10 slices, is it means that I only able to sent one complete picture in 1 second (if my fps=10)? Thanks.

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Re: [h323plus] [h323implementers] How does the H323Plus handles the codecs
by Simon Horne 23 Feb '10

23 Feb '10

This should be on the h323plus mailing list. You place the plugins directory next to src and header directories in the h323plus directory and then compile them seperately. This will create seperate **_p[t-w]libplugin.so files in the /release or /debug directory which you copy to your application directory or set the PTLIBPLUGINDIR env variable to point to directory you have placed your plugins. The plugins are automatically detected and loaded when you start your application. Simon _____ From: h323implementers-bounces(a)lists.packetizer.com [mailto:h323implementers-bounces@lists.packetizer.com] On Behalf Of Thiago Martins de Sousa Sent: Wednesday, 24 February 2010 7:47 AM To: h323implementers(a)lists.packetizer.com Subject: [h323implementers] How does the H323Plus handles the codecs Hi, I'm studying the H323Plus library to start a project but I have a doubt. How does it handles with de audio and video codecs? I look the source code and thought that I have to download the plugin and put then at the /include and then compile all together or I compile the source of the plugins and then put the archives *.o at the /include folder? _____ Fique protegido enquanto navega na Internet. Instale o Internet <http://go.microsoft.com/?linkid=9707132> Explorer 8.

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Re: [h323plus] RES: h323plus working plugins
by Carlos Haj 29 Jan '10

29 Jan '10

Hello, I noticed that encoder_set_options of h263-ffmpeg plugin only works while codec initialising. So if you are interested to change bandwidth or quality setting during a videocall you must modify the plugin. in encoder_set_options: add context->Lock(); context->CloseCodec(); /* here options changing ... */ context->OpenCodec(); context->Unlock(); Then add two function Lock and UnLock to H263_Base_EncoderContext with a mutex to ensure no encoding frames while openning or closing a codec! CriticalSection _mutex; void Lock() { _mutex.Wait(); } void Unlock() { _mutex.Signal(); } Add a mutex signal to the beginning of H263EncoderContext::~H263EncoderContext() { WaitAndSignal m(_mutex); /* function code...*/ and int H263EncoderContext::EncodeFrames(const BYTE * src, unsigned & srcLen, BYTE * dst, unsigned & dstLen, unsigned int & flags) { WaitAndSignal m(_mutex); /* function code...*/ So the parameters of ffmepg h263 become usable at least! Anyone tried with h263-1998 ? I'm still not able to make it working for h323 for same reasons I mentioned in my first post. Could be interesting to share some ideas! Greetings, Carlo Subject: RES: [h323plus] h323plus working plugins Date: Fri, 22 Jan 2010 14:48:41 -0200 From: leandro.alvares(a)caixa.gov.br To: unazona(a)hotmail.com Hi Carlos, I got the same results as you.... I’m not happy with my vídeo quality (CIF) and I need to activate the H.264 or H.263 4CIF, but I’m having a lot of dificults.... Regards, Leandro Oliveira Alvares De: h323plus-bounces(a)lists.packetizer.com [mailto:h323plus-bounces@lists.packetizer.com] Em nome de Carlos Haj Enviada em: sexta-feira, 22 de janeiro de 2010 08:38 Para: h323plus(a)lists.packetizer.com Assunto: [h323plus] h323plus working plugins Hello Everyone, I've been experimenting Opal plugins on h323plus stack. I would like to share you my experience as it seems to me that most opal plugins doesn't work for h323plus. I compiled plugins along with correct ffmpeg and x264 revisions, on both windows and linux platforms. Here is my test results: H.261vic OK H.263_ffmpeg OK H.263_1998 * Crashes before packetising process, it works after I delay the packetiser function. * Video pixels are melting strikes, even while disabling all h263 annexes. MPEG4 * AVCodec crashes on encoder function H.264 * It doesn't compile at all after activating H323_H264_TEST * Complains about some missing constants, which I added * Compilation errors in structure definitions (h323 capabilities) Theora Not tested I'm unsure about the development priority and/or status of video plugins, as no document states that. Anyone tried to experiment video codecs using h323plus?! do you have same results as me?! Thanks, I appreciate. Vous cherchez l'intégrale des clips de Michael Jackson ? Bing ! Trouvez ! Subject: RES: [h323plus] h323plus working plugins Date: Fri, 22 Jan 2010 14:48:41 -0200 From: leandro.alvares(a)caixa.gov.br To: unazona(a)hotmail.com Hi Carlos, I got the same results as you.... I’m not happy with my vídeo quality (CIF) and I need to activate the H.264 or H.263 4CIF, but I’m having a lot of dificults.... Regards, Leandro Oliveira Alvares De: h323plus-bounces(a)lists.packetizer.com [mailto:h323plus-bounces@lists.packetizer.com] Em nome de Carlos Haj Enviada em: sexta-feira, 22 de janeiro de 2010 08:38 Para: h323plus(a)lists.packetizer.com Assunto: [h323plus] h323plus working plugins Hello Everyone, I've been experimenting Opal plugins on h323plus stack. I would like to share you my experience as it seems to me that most opal plugins doesn't work for h323plus. I compiled plugins along with correct ffmpeg and x264 revisions, on both windows and linux platforms. Here is my test results: H.261vic OK H.263_ffmpeg OK H.263_1998 * Crashes before packetising process, it works after I delay the packetiser function. * Video pixels are melting strikes, even while disabling all h263 annexes. MPEG4 * AVCodec crashes on encoder function H.264 * It doesn't compile at all after activating H323_H264_TEST * Complains about some missing constants, which I added * Compilation errors in structure definitions (h323 capabilities) Theora Not tested I'm unsure about the development priority and/or status of video plugins, as no document states that. Anyone tried to experiment video codecs using h323plus?! do you have same results as me?! Thanks, I appreciate. Vous cherchez l'intégrale des clips de Michael Jackson ? Bing ! Trouvez ! _________________________________________________________________ Découvrez Windows 7 en 7 secondes ! http://clk.atdmt.com/FRM/go/181574577/direct/01/

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