- h323plus - lists.packetizer.com

GNU Gatekeeper 3.2 released
by Jan Willamowius 17 Jan '13

17 Jan '13

Dear community, I'm happy to announce the availability of GNU Gatekeeper 3.2. This is the first version released by Relaxed Communications GmbH, the company I recently founded to provide consulting and support for GnuGk. Version 3.2 has a few new features and many bugfixes, especially for those of you with a lot of calls. There are executables for Linux, Windows, FreeBSD, NetBSD and OpenBSD. http://www.gnugk.org/gnugk-3.2.html New Features: The most important new feature in my view is the ability to have multiple instances of routing policies with different configuration. Another very important feature is support for additive registrations. Here is the full list: - allow multiple instances of routing policies with different settings (currently works for sql, enum, srv, dns, numberanalysis, lua, forwarding) - support for additive registration for gateways, new switch [RasSrv::RRQFeatures] EnableAdditiveRegistration - new Alias SQL variable "Additive-RRQ" - new [Gatekeeper::Main] TTLExpireDropCall switch to prevent calls being dropped due to registration timeout - added AssignedGatekeeper support to child gatekeeper - new [Routing::Sql] EnableRegexRewrite switch to support basic regex rewrite in SQL queries - new switch [RoutedMode] RemoveH245AddressFromSetup= - improved speed of H.460.19 port detection - new ACF status item for media routing for calls - extend [RasSrv::PermanentEndpoints] to support vendor information on gateways Please see changes.txt in the download archives for details on the bug fixes. Regards, Jan -- Jan Willamowius, Founder of the GNU Gatekeeper Project Website: http://www.gnugk.org Relaxed Communications GmbH Frahmredder 91 22393 Hamburg Geschäftsführer: Jan Willamowius HRB 125261 (Amtsgericht Hamburg) USt-IdNr: DE286003584

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Error in PTLib version check macro
by Denis Kochmashev "Enforta" 11 Dec '12

11 Dec '12

Hello! Perhaps you already know that there is a small error in PTLib version check macro in latest CVS version of H323Plus. I think that PTLIB_VER should be compared to 21100 instead of 2110. Regards, Denis

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Typo in GeExtendedChannelNum() function name
by ojab 27 Nov '12

27 Nov '12

Hello, list. I've found GeExtendedChannelNum() function in include/h323con.h, looks like there is a typo and function name should really be GetExtendedChannelNum(). //wbr ojab

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GNU Gatekeeper 3.1 released
by Jan Willamowius 23 Aug '12

23 Aug '12

Hi! I'm happy to announce the release of GNU Gatekeeper version 3.1. NOTE: This release contains a SECURITY FIX and users of all previous versions are encouraged to update to 3.1. Highlights of GnuGk 3.1: - SNMP support (GET, SET and traps) - H.460.17 support - routing policy for call forwarding (according to SQL database) - support for connections with different H.245 tunneling settings on each call leg - neighbor routing by IP ([Neighbor::...] SendIPs=1.2.3.4/22) - GnuGk can encryption/decryption internet-side leg of a call - configurable handling of Q.931 decoding errors - support for setting host routes in config ([Proxy] ExplicitRoutes=) - freely configure vendor ID when registering as endpoint with other gatekeeper - read alternate gatekeeper settings from database - new config section [RewriteSourceAddress] - bug fixes (eg. in traversal zone support) The full changelog is attached. You can download executables for Linux, Windows, MacOS X, FreeBSD, OpenBSD, NetBSD and Solaris from http://www.gnugk.org/gnugk-3.1.html Please note that not all executables have all features compiled in. Especially if you want good SNMP support, you should compile GnuGk for your exact configuration. Regards, Jan -- Jan Willamowius, Founder of the GNU Gatekeeper Project EMail : jan(a)willamowius.de Website: http://www.gnugk.org Support: http://www.willamowius.com/gnugk-support.html

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openmcu and h323plus - getting video operational
by lkcl luke 15 Aug '12

15 Aug '12

hi, i'm in the process of getting openmcu up and running. the usual issues which have been discussed many many times - audio working but video is not - are being experienced. i've managed to get to the point where, after downloading the source code for ffmpeg, ptlib, h323plus, openmcu and various other plugins that i've found on openmcu.ru, and after making various modifications i can get a stable build... *without* video. the moment i add in the plugins which handle video, a connection from ekiga hangs openmcu indefinitely, to the extent where even the web interface on port 1420 doesn't work. so, things that *might* be stopping this from working: i haven't been able to build any of the h323plus plugins, except just now, and i had to modify the "configure" script as well as the source code, because the detection of h263p_encoder has now been modified: it's called ff_h263p_encoder, as is h264_encoder, decoder and mpeg_decoder - they all now have the prefix "ff_" as you can see from these patches (which i found via very very obscure google searches) http://ftp.netbsd.org/pub/pkgsrc/current/pkgsrc/devel/opal/patches/ but... this still isn't enough, because the actual detection in configure.ac is utterly broken. so, instead what i did - temporarily - was to hack the configure script to define HAVE_H263P=yes, HAVE_H264_DETECTION=yes, HAVE_H263=yes on a permanent basis. that then allowed me to actually have the plugins configured, *but* they're not actually compiled! so i had to "cd plugins" and run "make", that then discovered that there's an error in include/openh323buildopts.h - i had to edit this file to hard-code the location of ptlib's revision.h file (#include "/root/ptlib-2.10.4~dfsg/revision.h"), and hooray, the make worked. i say worked, but it still didn't compile things: the detection for LIBAVCODEC changes is wrong - features that said to be in version 54 are actually present in version 52, so i had to make changes like this: #if LIBAVCODEC_VERSION_MAJOR < 52 _context->codec_type = CODEC_TYPE_VIDEO; #else _context->codec_type = AVMEDIA_TYPE_VIDEO; #endif _context->codec_id = CODEC_ID_H264; then there was also a #include that was commented out in rfc2190.cxx #include <malloc.h> which had to go back in, because the "free" function is undefined otherwise. so fiiinally, that allowed h261-vic_video_pwplugin.so and a whole bunch of other codecs to be built (hooray!) and, so, having compiled all these plugins, i now install them aaaaaand.... openmcu hangs when h261-vic_video_pwplugin.so is installed. all other plugins are installed (h264 etc.) but making a call with ekiga using these plugins, they're not activated. so... after struggling to get even the plugins compiled (several hours of investigation), and struggling to get the source code compiled (2 days), things are no further along. does anyone have a successful recipe and build environment and/or has anyone actually ever got openmcu to ever work with video, or does anyone have any advice on how to go about investigating and/or fixing the issue of hanging with h261-vic-video-pwplugin? many thanks, l.

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Re: [h323plus] lost rtp packets and using jitter for video session
by Konstantin 10 Aug '12

10 Aug '12

Dear Simon, I tried to check if h323plus endpoint works with demanded jitter value or not. From the linux server side that has OpenMCU started I executed: # tc qdisc add dev eth0 root netem delay 74ms 2ms (74ms is average delay, 2ms is jitter) And the video receiving on the client side (Myphone) became distorted. Then I tried to decrease jitter value from 2 to 1ms with: # tc qdisc delete dev eth0 root netem delay 74ms 2ms # tc qdisc add dev eth0 root netem delay 74ms 1ms (74ms avg delay, 1ms jitter) And the video come back to normal. So 1ms jitter looks OK, 2ms - not OK: 6-level tracing shows time to time: 2012/08/09 14:34:49.034 3 rtp.cxx(1122) RTP Dropped 1 packet(s) at 19195, ssrc=532876226 2012/08/09 14:34:49.034 6 h323pluginmgr.cxx(2105) PLUGIN Partial Frame received H.264-4CIF2 Ignoring rendering. 2012/08/09 14:34:49.034 3 rtp.cxx(1103) RTP Out of order packet, received 19194 expected 19196 ssrc=532876226 h323plus version I use has been forked, it is from Myphone3 project, so I don't mean you should fix something in the original h323plus... But de-jittering used for receiving audio only in both branches of project, that's why I need to ask you do you see any other way to resolve this except to get jitter buffer work with the video RTP also? I tried to increase jitter buffer stack, fix 40ms/frame constant and force it to work with video, but my endpoint just hangs when attempting to draw incoming video frame at the moment. And I need an advice, is this way "right" or not? And what's the reason of creating additional buffers for outputdevice if the out-of- order packets just drops? Simon Horne s.horne at packetizer.com Tue Feb 8 08:29:07 EST 2011 -------------------------------------------------------------------------- Igor The main issue is not the packets are being lost but the rendering being too slow and blocking the receive thread which would drop packets. The quick solution was to throw the actual rending within your VideoOutputDevice onto another thread and use a std::queue (with mutex) to load the frames coming out of the codec and grab the frames to send to the renderer. This will then not block the receiving thread. You can be cleaver and build a 1-3 frame buffer in your outputdevice to simulate a jitter buffer. See MyVideoOutputDevice::SetFrameData(..,const void * mark); The mark is a H323_RTPInformation pointer which contains a pointer to the last raw received RTP packet of the completed frame. You can get timestamp information from this and pace the output to the render, so if a frame is dropped then you can conceal it. Simon From: h323plus-bounces at lists.packetizer.com [mailto:h323plus-bounces at lists.packetizer.com] On Behalf Of Igor Pavlov Sent: 08 February 2011 22:27 To: h323plus at lists.packetizer.com Subject: [h323plus] lost rtp packets and using jitter for video session Hi, On connection speed greater than 384 kbps I have many lost rtp packets. If I switch off decoding of incoming video packets, than number of lost packets decreases. That is why I would like to try use jitter on video stream. I changed call of OpalMediaFormat() constructor inside OpalVideoFormat constructor in such way that needsjitter member become TRUE. But It is not working, not decoding any data. How can I use Jitter for my purpose and in general - can I do it? Igor Pavlov

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Symmetrical negotiation
by Diego Carvalho 19 Jun '12

19 Jun '12

Hi all, Does anyone know if there is a way to wait the remote endpoint's OLC message before sending ours? I want to make the negotiation symmetric (have same codecs) and also video payload type (e.g If remote sends pt = 96 in its OLC I also want to send pt = 96 in my OLC). So that's why I need to wait remote's OLC first. I appreciate any help. Thanks.

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Re: [h323plus] does H323Plus support H,239? Thanks!
by Bo Xu 13 Jun '12

13 Jun '12

Hello Mark, Thanks for the info! I also have another question about H.239, I am testing simple-application now, after connection and when I type "S" in callee-side(to start H.239), I got error message said "Application Open Error: Remote may not support Feature!", does it mean I need to enable H.239 capability in caller-side first? could you tell me how to make a H.239 enabled call with simple-application? do I need to modify the code of simple-application or just update the configuration? Thanks! Regards, Bo On Wed, Jun 13, 2012 at 3:54 PM, Mark Fleming <mark.fleming(a)queensu.ca>wrote: > Did you install video plugins? > > Using plugins > > Installing a codec plugin consists of copying the DLL or library.so file > into a directory where it can be found by OpenH323. By default, the stack > will search "C:\PWLIB_PLUGINS" (on Windows) or "/usr/local/lib/pwlib" (on > Unix) and all sub-directories. The default directory will be different if > the --prefix option is passed to configure. > > At run-time, the default plugin directory can be changed by setting the > value of PWLIBPLUGINDIR environment variable. If set, this variable is > assumed to contain a list of directories, seperated by ":" (colon) on Unix, > and ";" (semi-colon) on Windows. > > All plugin codecs must have a name that ends in "_pwplugin.dll" (Windows) > or "_pwplugin.so" (for Unix). This allows the plugin search path directory > to be safely pointed at a directory like "/usr/lib" or > "C:\WINDOWS\SYSTEM32" without PWLib attempting to load every single shared > library while looking for codecs. > > From: Bo Xu <boxuscience(a)gmail.com> > Date: Wednesday, 13 June, 2012 2:46 PM > To: "h323plus(a)lists.packetizer.com" <h323plus(a)lists.packetizer.com> > > Subject: Re: [h323plus] does H323Plus support H,239? Thanks! > > Hello Simon, > > Thanks for the info! now I have compiled ptlib-2.10.1-src > and h323plus-v1_23_0, also I have built two applications(simple and > myphone). when I started them in my two PCs, I can do audio call > successfully, but there is no video, could you tell me where I can find the > document for adding video capability into simple/myphone application? > Thanks! > > Regards, > Bo > > > > > > > > > > > On Tue, Apr 10, 2012 at 10:07 PM, Simon Horne <s.horne(a)packetizer.com>wrote: > >> 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@lists.packetizer.com [mailto: >> h323plus-bounces(a)lists.packetizer.com]*On Behalf Of *Bo Xu >> >> *Sent:* 11 April 2012 05:41 >> *To:* h323plus(a)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(a)packetizer.com> >> wrote:**** >> >> Yes**** >> >> **** >> >> *From:*h323plus-bounces@lists.packetizer.com [mailto: >> h323plus-bounces(a)lists.packetizer.com] *On Behalf Of *Bo Xu >> *Sent:* 05 April 2012 00:52 >> *To:* h323plus(a)lists.packetizer.com >> *Subject:* [h323plus] does H323Plus support H,239? Thanks!**** >> >> **** >> >> Hello,**** >> >> **** >> >> could you tell me id H323Plus support H,239? Thanks!**** >> >> **** >> >> Regards,**** >> >> Bo**** >> >> **** >> >> **** >> >> ** ** >> > >

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does H323Plus support H,239? Thanks!
by Bo Xu 13 Jun '12

13 Jun '12

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

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GNU Gatekeeper 3.0 released
by Jan Willamowius 04 May '12

04 May '12

I'm pleased to announce a new major release of the GNu Gatekeeper. Version 3.0 has many new features that will allow even your legacy endpoints to move to a new age of H.323 audio and video communications. You can download the new version at http://www.gnugk.org/h323download.html New features: - full traversal zone support (gatekeeper-to-gatekeeper H.460.18/.19) Now you can place one GnuGk behind a firewall and let it tunnel out the calls for all other devices behind the firewall eg. to a VCS or to another GnuGk. This was probably the most request feature in the past. - full IPv6 support (incl. IPv4-IPv6 proxying) With the proxy function, you can let GnuGk manage a network of IPv6 endpoints and connect them to the IPv4 network or make legacy endpoints reachable for IPv6 calls. - RTP multiplexing (all calls to and from devices supporting H.460.19 will only use 2 sockets total) - rewrite destination IPs into aliases - ENUM, SRV and RDS routing policies extended for LRQs, in case the calling gatekeeper isn't able to do this - notifications when GnuGk opens listen ports This allows you to update firewall rules on the fly, so you only have the minimum amount of ports open. - improved H.235 password authentication with neighbors - massive performance improvement when (re-)loading large numbers of GW rewrites - interop fixes for Polycom m100 and Sorenson endpoints - fixes in the underlying libraries so *BSD systems can get the latest GnuGk features - a few bug fixes We provide executables for Linux (32 and 64 bit), Windows, MacOS X, FreeBSD, OpenBSD, NetBSD and Solaris. Regards, Jan -- Jan Willamowius, Founder of the GNU Gatekeeper Project EMail : jan(a)willamowius.de Website: http://www.gnugk.org Support: http://www.willamowius.com/gnugk-support.html

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