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GNU Gatekeeper 3.6 has been released
by Jan Willamowius 07 May '14

07 May '14

Hi, I'm happy to announce version 3.6 of the GNU Gatekeeper. http://www.gnugk.org/h323download.html This version contains support for Polycom's domain##alias addressing, a new policy to route by URI prefix, better config checking, fixes for H.460.19 port detection and a number of other bugfixes and smaller features. I'm trying to cut down on the time I have to spend on each release, so I will only provide executable to support client for this version. Please follow these instructions to compile GnuGk yourself: http://www.gnugk.org/compiling-gnugk.html Detailed change log: - support Polycom's domain##alias addressing in DNS policy - new command line switch: --strict (don't start with config errors) - new routing policy [Routing::URIService] to define service specific URI routing policy. - allow SendTo= without AlternateGKs= switch - new switch [EP::...] ForceGateway=1 to treat an endpoint as a gateway - new switch [EP::...] AddCallingPartyToSourceAddress=1 - new switch [EP::...] DisableCallCreditCapabilities=1 - verify the correct payloadType on H.460.19 keep-alive packets (disable with [Proxy] CheckH46019KeepAlivePT=0) - support libssh 0.6.x - BUGFIX(ProxyChannel.cxx) fix memory leak on TLS errors - BUGFIX(RasTbl.cxx) use 64bit numbers for AddNumbers= ranges - BUGFIX(RasSrv.cxx) fill destCallSignallAddress in answer ACF in direct mode - BUGFIX(RasSrv.cxx) fix callSignalPort in LCF when H.460.22 is enabled - BUGFIX(ProxyChannel.cxx) read ProxyHandlerHighPrio switch earlier - BUGFIX(ProxyChannel.cxx) wait 4 sec before using regular RTP packets for H.460.19 port detection - BUGFIX(gk.cxx) small fixes for MacOSX -- 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 Relaxed Communications GmbH Frahmredder 91 22393 Hamburg Geschäftsführer: Jan Willamowius HRB 125261 (Amtsgericht Hamburg) USt-IdNr: DE286003584

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Null pointer reference
by Ankur Deep Jaiswal 05 May '14

05 May '14

Hi, I am using H323plus v 1.26.3. With the External rtp example, I am getting a 'Assertion fail: Null pointer reference, file channels.cxx, line 629, Error=22' while trying to open a channel with capability G.711-ALaw-64k. it happens at H323_ExternalRTPChannel::OnSendingPDU at line number 1329. Help appreciated -- Ankur Deep Jaiswal

3 7

OnConnectionEstablished fired twice in the same call
by Ankur Deep Jaiswal 08 Apr '14

08 Apr '14

Hi, I was testing h323plus v 1.26.0 using sample/simple. i have come across a scenario where OnConnectionEstablished is being called twice in the same call. i am attaching a level 4 trace file. Help appreciated. -- Ankur Deep Jaiswal

1 0

report bugs and seek help
by 李银城 06 Apr '14

06 Apr '14

Dear H323plus Team: I want to report some bugs(maybe) and seek help, for these days I'm installing the package and come across some problem. The first thing I want to mention is that when compiling the h235auth.cxx file, error occurs: [CC] h235auth.cxx h235auth.cxx: In member function ‘void H235Authenticators::PrepareSignalPDU(unsigned int, PASN_Array&, PASN_Array&, PINDEX) const’: h235auth.cxx:449:39: error: ‘m_maxTokenLength’ was not declared in this scope PINDEX keyLength = (max_keyLength > m_maxTokenLength) ? m_maxTokenLength : max_keyLength; I trace the source file and find that "m_maxTokenLength" actually defined in h235auth.h, but with a precompile header #ifdef H323_H235. Problem is that the function error occuring function PrepareSignalPDU doesn't wrapped by that header and use the wrapped variables which may not be defined. So if one can make the H323_H235 available, it will be cured. I trace through and find that this header require #define OPENSSL, so I install the package on windows(XP) then it really compile well. But on my Ubuntu, still fails. So I make the undefind variables out the precompile section and then the "make" progresses smoothly but I don't know what consequences will be. Secondly, I want to enable h263 feature, it requires the ffmpeg codec and I install the newest version 2.2. But it didn't work. Configure says: checking for LIBAVCODEC... yes configure: libavcodec stack align hack disabled checking for h263p_encoder in -lavcodec... no checking for h263p_encoder in -lavcodec... (cached) no checking for mpeg4_encoder in -lavcodec... no checking for h264_decoder in -lavcodec... no I think the "no" checks are the causes. Is " -lavcodec" are passed to ffmpeg as its arguments to check if it support the codecs? I check the ffmpeg's option and only find that ffmpeg has a similar option "codec" which list out all its suport codes where I find h264. There goes what I want to seek help: 1. The oh323tut require a wav file. What's its effects, a tmp file as a buff? The web says it requires the format 16 bit with 8000 Hz and I use cool edit software to produce such a wav file but the program still report wrong file format error. So I got stuck. 2. How can I catch video from my computer camera. I can't run the h323plus sample "simple", it crash when come to the call PVideoInputDevice::GetDeviceCapabilities in arg initialization. I debug and found that the ptlib function calls in a cycle: A call B; B call C; C call A. Then the stack runs out. So, what's the trouble here? How can I get my device name pass it to the program instead of "*"? Last but not least, I want to ask Is there any detailed tutorial to learn. I search the net using google, the valuable one is almost only the oh323tut. But the oh323tut is a little too simple. It only shows the audio feature. How is the video? The simple sample shows an example I guess I can try to understand. Is there any related code or project using H323plus, for example using glade to show the video. Best regards Yincheng Li South China Normal University ------------------

3 3

help
by 李银城 05 Apr '14

05 Apr '14

Dear H323plus Team: I want to report some bugs(maybe) and seek help, for these days I'm installing the package and come across some problem. The first thing I want to mention is that when compiling the h235auth.cxx file, error occurs: [CC] h235auth.cxx h235auth.cxx: In member function ‘void H235Authenticators::PrepareSignalPDU(unsigned int, PASN_Array&, PASN_Array&, PINDEX) const’: h235auth.cxx:449:39: error: ‘m_maxTokenLength’ was not declared in this scope PINDEX keyLength = (max_keyLength > m_maxTokenLength) ? m_maxTokenLength : max_keyLength; I trace the source file and find that "m_maxTokenLength" actually defined in h235auth.h, but with a precompile header #ifdef H323_H235. Problem is that the function error occuring function PrepareSignalPDU doesn't wrapped by that header and use the wrapped variables which may not be defined. So if one can make the H323_H235 available, it will be cured. I trace through and find that this header require #define OPENSSL, so I install the package on windows(XP) then it really compile well. But on my Ubuntu, still fails. So I make the undefind variables out the precompile section and then the "make" progresses smoothly but I don't know what consequences will be. Secondly, I want to enable h263 feature, it requires the ffmpeg codec and I install the newest version 2.2. But it didn't work. Configure says: checking for LIBAVCODEC... yes configure: libavcodec stack align hack disabled checking for h263p_encoder in -lavcodec... no checking for h263p_encoder in -lavcodec... (cached) no checking for mpeg4_encoder in -lavcodec... no checking for h264_decoder in -lavcodec... no I think the "no" checks are the causes. Is " -lavcodec" are passed to ffmpeg as its arguments to check if it support the codecs? I check the ffmpeg's option and only find that ffmpeg has a similar option "codec" which list out all its suport codes where I find h264. There goes what I want to seek help: 1. The oh323tut require a wav file. What's its effects, a tmp file as a buff? The web says it requires the format 16 bit with 8000 Hz and I use cool edit software to produce such a wav file but the program still report wrong file format error. So I got stuck. 2. How can I catch video from my computer camera. I can't run the h323plus sample "simple", it crash when come to the call PVideoInputDevice::GetDeviceCapabilities in arg initialization. I debug and found that the ptlib function calls in a cycle: A call B; B call C; C call A. Then the stack runs out. So, what's the trouble here? How can I get my device name pass it to the program instead of "*"? If pass -v option with "/dev/video0" or "USB2.0 Camera" it will says that: Using video driver USB2.0 Camera No Video Grabber available Disabling Video Support! And the audio also has some problem: Could not open sound device Null Audio - Check permissions or full duplex capability. Then I type c: Using video driver USB2.0 Camera No Video Grabber available Disabling Video Support! Last but not least, I want to ask Is there any detailed tutorial to learn. I search the net using google, the valuable one is almost only the oh323tut. But the oh323tut is a little too simple. It only shows the audio feature. How is the video? The simple sample shows an example I guess I can try to understand. Is there any related code or project using H323plus, for example using glade to show the video. A big job without a good explanation is less power full then something is useful and simple. By contract, Glade has many tutorial if one searches the net. I really really get stuck. Hope to receive from you! Thank you!! Best regards Yincheng Li South China Normal University ------------------

1 0

help
by 李银城 05 Apr '14

05 Apr '14

Dear H323plus Team: I want to report some bugs(maybe) and seek help, for these days I'm installing the package and come across some problem. The first thing I want to mention is that when compiling the h235auth.cxx file, error occurs: [CC] h235auth.cxx h235auth.cxx: In member function ‘void H235Authenticators::PrepareSignalPDU(unsigned int, PASN_Array&, PASN_Array&, PINDEX) const’: h235auth.cxx:449:39: error: ‘m_maxTokenLength’ was not declared in this scope PINDEX keyLength = (max_keyLength > m_maxTokenLength) ? m_maxTokenLength : max_keyLength; I trace the source file and find that "m_maxTokenLength" actually defined in h235auth.h, but with a precompile header #ifdef H323_H235. Problem is that the function error occuring function PrepareSignalPDU doesn't wrapped by that header and use the wrapped variables which may not be defined. So if one can make the H323_H235 available, it will be cured. I trace through and find that this header require #define OPENSSL, so I install the package on windows(XP) then it really compile well. But on my Ubuntu, still fails. So I make the undefind variables out the precompile section and then the "make" progresses smoothly but I don't know what consequences will be. Secondly, I want to enable h263 feature, it requires the ffmpeg codec and I install the newest version 2.2. But it didn't work. Configure says: checking for LIBAVCODEC... yes configure: libavcodec stack align hack disabled checking for h263p_encoder in -lavcodec... no checking for h263p_encoder in -lavcodec... (cached) no checking for mpeg4_encoder in -lavcodec... no checking for h264_decoder in -lavcodec... no I think the "no" checks are the causes. Is " -lavcodec" are passed to ffmpeg as its arguments to check if it support the codecs? I check the ffmpeg's option and only find that ffmpeg has a similar option "codec" which list out all its suport codes where I find h264. There goes what I want to seek help: 1. The oh323tut require a wav file. What's its effects, a tmp file as a buff? The web says it requires the format 16 bit with 8000 Hz and I use cool edit software to produce such a wav file but the program still report wrong file format error. So I got stuck. 2. How can I catch video from my computer camera. I can't run the h323plus sample "simple", it crash when come to the call PVideoInputDevice::GetDeviceCapabilities in arg initialization. I debug and found that the ptlib function calls in a cycle: A call B; B call C; C call A. Then the stack runs out. So, what's the trouble here? How can I get my device name pass it to the program instead of "*"? Last but not least, I want to ask Is there any detailed tutorial to learn. I search the net using google, the valuable one is almost only the oh323tut. But the oh323tut is a little too simple. It only shows the audio feature. How is the video? The simple sample shows an example I guess I can try to understand. Is there any related code or project using H323plus, for example using glade to show the video. Best regards Yincheng Li South China Normal University ------------------

1 0

h235 secure with extended video
by 오부경 26 Feb '14

26 Feb '14

Hi. I think, h323plus does not support secure mode for extended video. Do you have schedule for extended video security? BooKyung, Oh.

2 1

OLC requests missing some information
by Ankur Deep Jaiswal 26 Feb '14

26 Feb '14

Hi, In The OLC for H.264 (generic and extended). in multiplexparameters:h225logicalchannelparameters h323plus does not supply dynamicRTPPalyoadType and mediaPacketization:rtpPayloadtype due to this some clients refuse to display video , if these parameters are not present. any idea on how to implement these. Help appreciated. -- Ankur Deep Jaiswal

3 4

Simpleh323 H239 Issue
by Ankur Deep Jaiswal 25 Feb '14

25 Feb '14

HI, While using H239 in simpleh323 client using connection->OpenH239Channel(). Simpleh323 sends a presentationTokenRequest and after receiving a presentationTokenResponse, replies with a new presentationTokenResponse with indication that functionNotUnderstood. hence H239 fails. Help appreciated. thanks in advance -- Ankur Deep Jaiswal

2 2

GnuGk turns 15, lets discuss where to take it from here
by Jan Willamowius 17 Feb '14

17 Feb '14

Dear community, this year the GNU Gatekeeper will turn 15 (I did the first release on June 29th 1999). Lets discuss where we should take it from here. I have prepared an anniversary survey with a number of questions on gatekeeper features, security and WebRTC etc. (1 page): http://www.gnugk.org/survey-2014.html Of course you can also chime in here on the mailinglist. (Why is it so quiet here lately ?) 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 Relaxed Communications GmbH Frahmredder 91 22393 Hamburg Geschäftsführer: Jan Willamowius HRB 125261 (Amtsgericht Hamburg) USt-IdNr: DE286003584

1 0