September 2008 - h323plus - lists.packetizer.com

PTimedMutex::Wait patch
by Nir Soffer 17 Feb '09

17 Feb '09

In PTimedMutex::Wait(const PTimeInterval & waitTime), when pthread_mutex_timedlock is not available or broken (it is broken on our arm platform), the code always sleeps before checking the finish time, which is incorrect. For example, if you call Wait(0), and fail to acquire the lock, you will sleep for 10 milliseconds before you get back the retrun value. This is a bigger issue if you use H323EndPoint::FindConnectionWithLock: PWaitAndSignal mutex(connectionsMutex); H323Connection * connection; while ((connection = FindConnectionWithoutLocks(token)) != NULL) { // XXX this will block for 10 milliseconds if the lock can not be acquired! // TryLock calls Wait(0) which sleeps for 10ms on failure switch (connection->TryLock()) { case 0 : return NULL; case 1 : return connection; } // Could not get connection lock, unlock the endpoint lists so a thread // that has the connection lock gets a chance at the endpoint lists. connectionsMutex.Signal(); PThread::Sleep(20); connectionsMutex.Wait(); } return NULL; The code try sleep for 20 milliseconds while the connectionsMutex is unlocked, letting the other thread that hold the connection a chancee to use the endpoint lists, but for each 30 milliseconds cycle, it keeps the endpoint lists locked for 10 milliseconds. Attached a trivial fix. Best Regards, Nir Soffer

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OpenMCU Web page not saving data
by Adrien Rudulier 16 Oct '08

16 Oct '08

OpenMCU's webpage isn't saving the configuration data when I change a value. I did a clean ubuntu install with cvs/svn versions of ptlib, h323plus and openmcu. Does anyone know off the top of their head whether it's a problem with openMCU or should I go talk to the guys at OpalVoip about ptlib? -Adrien __________________________________________________________________ Be smarter than spam. See how smart SpamGuard is at giving junk email the boot with the All-new Yahoo! Mail. Click on Options in Mail and switch to New Mail today or register for free at http://mail.yahoo.ca

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Need tested source code to run an MCU
by Shahzad Abid 22 Sep '08

22 Sep '08

Dear All I am trying since last week to run an openmcu on Centos5 and I have tried almost all the combination of source code available at h323plus.org web site and at source forge.net I need help to install h323plus + openmcu to stablish a video conferacing room. I am successfull installing openh323 + openmcu v2.2.1 on ubuntu but users can't see video but they can hear voice although openmcu's statistics show that clients are Rx/Tx video frames but there is not video at any end. Regards, Shahzad Abid

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H323Transport::HandleFirstSignallingChannelPDU crash when connection is NULL
by Nir Soffer 21 Sep '08

21 Sep '08

In H323Transport::HandleFirstSignallingChannelPDU, if NULL connection is returned from endpoint.OnIncomingConnection, the code try to send a release complete to the other side. However, line 1292 is not going to work (the connection is NULL): releaseComplete.Write(*this,*connection); To fix this, I added a Write method which does not accept a connection. Note that the new method duplicate the code from the version that accept a connection - I did not have to time to do it properly. The patch is created against version 1.20.2-alpha2. I verifyed that the issue still exists in the trunk. http://h323plus.cvs.sourceforge.net/h323plus/h323plus/src/transports.cxx?vi…

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Re: [h323plus] H323 error codes
by mayank＠in.niksun.com 19 Sep '08

19 Sep '08

> > -----Original Message----- > > From: mayank(a)in.niksun.com [mailto:mayank@in.niksun.com] > > Sent: Friday, 19 September 2008 5:28 PM > > ... > > > 1) In H225/Q931 what could be the error codes. Is these error codes > > comes > > along with the last message "Release complete message" ? > > Yes. > > > are in between the call. > > What do you mean by this? Can error message comes in between the call signaling ? > > > I am able to find these kind of codes specifically in SIP with > > the > > response messages with their numbers(Ex:400,500,..),similarly the > > case with > > the MGCP protocol.But,I am very much confused with the H.323. > > Look at Q.850 > > > 2)What could be the case with the H.245 protocol. > > No, as I said before, this is not in H.245. There is just endSession and it > has no Q.931 information in it. > > > Robert Jongbloed > OPAL/OpenH323/PTLib Architect and Co-founder. -- ---------------------------------------------------------------------------- Regards Mayank Jain Nawal mayank(a)in.niksun.com http://www.niksun.com Tel: +91 9818390836 +91 124-2316012(109)

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OpenMCU and XMeeting
by Michael Miller 19 Sep '08

19 Sep '08

I'm having trouble with XMeeting and OpenMCU. XMeeting connects fine intially, but if another h.323 client joins the session, XMeeting disconnects and OpenMCU crashes. Here's what I get at the console for OpenMCU: *** glibc detected *** openmcu: free(): invalid pointer: 0x098912c8 *** ======= Backtrace: ========= /lib/libc.so.6[0xb49ac1] /lib/libc.so.6(cfree+0x90)[0xb4d0f0] /usr/lib/libstdc++.so.6(_ZdlPv+0x21)[0x2fba6f1] /lib/libpt_linux_x86_r.so.2.0.1(_ZN13PAbstractList15DestroyContentsEv+0x19)[0xaa38a7] /lib/libpt_linux_x86_r.so.2.0.1(_ZN10PContainer8DestructEv+0x36)[0xaa8976] openmcu(_ZN13PAbstractListD2Ev+0x16)[0x8064856] /lib/libpt_linux_x86_r.so.2.0.1(_ZN7PSocket6SelectERS_S0_RK13PTimeInterval+0xa6)[0xa92caa] /lib/libh323_linux_x86_r.so.1.20-alpha2(_ZN7RTP_UDP8ReadDataER13RTP_DataFramei+0x25)[0x67b621] /lib/libh323_linux_x86_r.so.1.20-alpha2(_ZN16RTP_JitterBuffer6OnReadERPNS_5EntryERii+0x20)[0x70a632] /lib/libh323_linux_x86_r.so.1.20-alpha2(_ZN16RTP_JitterBuffer16JitterThreadMainER7PThreadi+0x88)[0x70c57a] /lib/libpt_linux_x86_r.so.2.0.1(_ZN13PSimpleThread4MainEv+0x1d)[0xa9c287] /lib/libpt_linux_x86_r.so.2.0.1(_ZN7PThread14PX_ThreadStartEPv+0xea)[0xa8a678] /lib/libpthread.so.0[0x78050b] /lib/libc.so.6(clone+0x5e)[0xbb3b2e] ======= Memory map: ======== 00110000-00111000 r-xp 00110000 00:00 0 [vdso] 00111000-0077a000 r-xp 00000000 fd:00 49282 /lib/libh323_linux_x86_r.so.1.20-alpha2 0077a000-0077b000 rw-p 00669000 fd:00 49282 /lib/libh323_linux_x86_r.so.1.20-alpha2 0077b000-00790000 r-xp 00000000 fd:00 51534 /lib/libpthread-2.7.so 00790000-00791000 r--p 00014000 fd:00 51534 /lib/libpthread-2.7.so 00791000-00792000 rw-p 00015000 fd:00 51534 /lib/libpthread-2.7.so 00792000-00794000 rw-p 00792000 00:00 0 00794000-00797000 r-xp 00000000 fd:00 49532 /lib/libdl-2.7.so 00797000-00798000 r--p 00002000 fd:00 49532 /lib/libdl-2.7.so 00798000-00799000 rw-p 00003000 fd:00 49532 /lib/libdl-2.7.so 00799000-007c0000 r-xp 00000000 fd:00 51506 /lib/libm-2.7.so 007c0000-007c1000 r--p 00026000 fd:00 51506 /lib/libm-2.7.so 007c1000-007c2000 rw-p 00027000 fd:00 51506 /lib/libm-2.7.so 007c2000-007de000 r-xp 00000000 fd:00 445122 /usr/local/lib/ptlib/devices/videoinput/v4l2_pwplugin.so 007de000-007df000 rw-p 0001c000 fd:00 445122 /usr/local/lib/ptlib/devices/videoinput/v4l2_pwplugin.so 007df000-007fa000 r-xp 00000000 fd:00 445123 /usr/local/lib/ptlib/devices/videoinput/v4l_pwplugin.so 007fa000-007fb000 rw-p 0001b000 fd:00 445123 /usr/local/lib/ptlib/devices/videoinput/v4l_pwplugin.so 007fb000-00805000 r-xp 00000000 fd:00 49255 /lib/libnss_files-2.7.so 00805000-00806000 r--p 00009000 fd:00 49255 /lib/libnss_files-2.7.so 00806000-00807000 rw-p 0000a000 fd:00 49255 /lib/libnss_files-2.7.so 008b6000-008d1000 r-xp 00000000 fd:00 49338 /lib/ld-2.7.so 008d1000-008d2000 r--p 0001a000 fd:00 49338 /lib/ld-2.7.so 008d2000-008d3000 rw-p 0001b000 fd:00 49338 /lib/ld-2.7.so 008d3000-00adb000 r-xp 00000000 fd:00 49337 /lib/libpt_linux_x86_r.so.2.0.1 00adb000-00add000 rw-p 00208000 fd:00 49337 /lib/libpt_linux_x86_r.so.2.0.1 00add000-00ae0000 rw-p 00add000 00:00 0 00ae0000-00c33000 r-xp 00000000 fd:00 49340 /lib/libc-2.7.so 00c33000-00c35000 r--p 00153000 fd:00 49340 /lib/libc-2.7.so 00c35000-00c36000 rw-p 00155000 fd:00 49340 /lib/libc-2.7.so 00c36000-00c39000 rw-p 00c36000 00:00 0 026c9000-026d9000 r-xp 00000000 fd:00 51559 /lib/libresolv-2.7.so 026d9000-026da000 r--p 00010000 fd:00 51559 /lib/libresolv-2.7.so 026da000-026db000 rw-p 00011000 fd:00 51559 /lib/libresolv-2.7.so 026db000-026dd000 rw-p 026db000 00:00 0 02e90000-02e9b000 r-xp 00000000 fd:00 51527 /lib/libgcc_s-4.1.2-20070925.so.1 02e9b000-02e9c000 rw-p 0000a000 fd:00 51527 /lib/libgcc_s-4.1.2-20070925.so.1 02f07000-02fe7000 r-xp 00000000 fd:00 5619850 /usr/lib/libstdc++.so.6.0.8 02fe7000-02feb000 r--p 000df000 fd:00 5619850 /usr/lib/libstdc++.so.6.0.8 02feb000-02fec000 rw-p 000e3000 fd:00 5619850 /usr/lib/libstdc++.so.6.0.8 02fec000-02ff2000 rw-p 02fec000 00:00 0 08048000-0807d000 r-xp 00000000 fd:00 88310 /usr/local/bin/openmcu 0807d000-08088000 rw-p 00034000 fd:00 88310 /usr/local/bin/openmcu 08088000-08089000 rw-p 08088000 00:00 0 Aborted ###################################################### *** glibc detected *** openmcu: malloc(): memory corruption (fast): 0x08afa618 *** ======= Backtrace: ========= /lib/libc.so.6[0xb4a8ac] /lib/libc.so.6(__libc_malloc+0x7b)[0xb4bb7b] /usr/lib/libstdc++.so.6(_Znwj+0x27)[0x2fbbba7] /lib/libpt_linux_x86_r.so.2.0.1(_ZN10PContainerC2Ei+0x17)[0xaa6945] /lib/libpt_linux_x86_r.so.2.0.1(_ZN14PAbstractArrayC2Eii+0x13)[0xaa8fad] /lib/libpt_linux_x86_r.so.2.0.1(_ZN10PBaseArrayIcEC2Ei+0x15)[0xa22119] /lib/libpt_linux_x86_r.so.2.0.1(_ZN10PCharArrayC2Ei+0x13)[0xaae873] /lib/libpt_linux_x86_r.so.2.0.1(_ZN7PStringC1Ev+0x12)[0xaaabbc] /lib/libpt_linux_x86_r.so.2.0.1(_ZN12PDTMFDecoder6DecodeEPKsi+0x11)[0xa3dff3] /lib/libh323_linux_x86_r.so.1.20-alpha2(_ZN14H323Connection21OnUserInputInBandDTMFERN9H323Codec10FilterInfoEi+0x27)[0x639441] /lib/libh323_linux_x86_r.so.1.20-alpha2(_ZN9H323Codec8WriteRawEPvi+0x92)[0x66b80a] /lib/libh323_linux_x86_r.so.1.20-alpha2(_ZN20H323FramedAudioCodec5WriteEPKhjRK13RTP_DataFrameRj+0x12f)[0x66b9f7] /lib/libh323_linux_x86_r.so.1.20-alpha2(_ZN15H323_RTPChannel7ReceiveEv+0x2c3)[0x670ff9] /lib/libpt_linux_x86_r.so.2.0.1(_ZN7PThread14PX_ThreadStartEPv+0xea)[0xa8a678] /lib/libpthread.so.0[0x78050b] /lib/libc.so.6(clone+0x5e)[0xbb3b2e] ======= Memory map: ======== 00110000-00111000 r-xp 00110000 00:00 0 [vdso] 00111000-0077a000 r-xp 00000000 fd:00 49282 /lib/libh323_linux_x86_r.so.1.20-alpha2 0077a000-0077b000 rw-p 00669000 fd:00 49282 /lib/libh323_linux_x86_r.so.1.20-alpha2 0077b000-00790000 r-xp 00000000 fd:00 51534 /lib/libpthread-2.7.so 00790000-00791000 r--p 00014000 fd:00 51534 /lib/libpthread-2.7.so 00791000-00792000 rw-p 00015000 fd:00 51534 /lib/libpthread-2.7.so 00792000-00794000 rw-p 00792000 00:00 0 00794000-00797000 r-xp 00000000 fd:00 49532 /lib/libdl-2.7.so 00797000-00798000 r--p 00002000 fd:00 49532 /lib/libdl-2.7.so 00798000-00799000 rw-p 00003000 fd:00 49532 /lib/libdl-2.7.so 00799000-007c0000 r-xp 00000000 fd:00 51506 /lib/libm-2.7.so 007c0000-007c1000 r--p 00026000 fd:00 51506 /lib/libm-2.7.so 007c1000-007c2000 rw-p 00027000 fd:00 51506 /lib/libm-2.7.so 007c2000-007de000 r-xp 00000000 fd:00 445122 /usr/local/lib/ptlib/devices/videoinput/v4l2_pwplugin.so 007de000-007df000 rw-p 0001c000 fd:00 445122 /usr/local/lib/ptlib/devices/videoinput/v4l2_pwplugin.so 007df000-007fa000 r-xp 00000000 fd:00 445123 /usr/local/lib/ptlib/devices/videoinput/v4l_pwplugin.so 007fa000-007fb000 rw-p 0001b000 fd:00 445123 /usr/local/lib/ptlib/devices/videoinput/v4l_pwplugin.so 007fb000-00805000 r-xp 00000000 fd:00 49255 /lib/libnss_files-2.7.so 00805000-00806000 r--p 00009000 fd:00 49255 /lib/libnss_files-2.7.so 00806000-00807000 rw-p 0000a000 fd:00 49255 /lib/libnss_files-2.7.so 008b6000-008d1000 r-xp 00000000 fd:00 49338 /lib/ld-2.7.so 008d1000-008d2000 r--p 0001a000 fd:00 49338 /lib/ld-2.7.so 008d2000-008d3000 rw-p 0001b000 fd:00 49338 /lib/ld-2.7.so 008d3000-00adb000 r-xp 00000000 fd:00 49337 /lib/libpt_linux_x86_r.so.2.0.1 00adb000-00add000 rw-p 00208000 fd:00 49337 /lib/libpt_linux_x86_r.so.2.0.1 00add000-00ae0000 rw-p 00add000 00:00 0 00ae0000-00c33000 r-xp 00000000 fd:00 49340 /lib/libc-2.7.so 00c33000-00c35000 r--p 00153000 fd:00 49340 /lib/libc-2.7.so 00c35000-00c36000 rw-p 00155000 fd:00 49340 /lib/libc-2.7.so 00c36000-00c39000 rw-p 00c36000 00:00 0 026c9000-026d9000 r-xp 00000000 fd:00 51559 /lib/libresolv-2.7.so 026d9000-026da000 r--p 00010000 fd:00 51559 /lib/libresolv-2.7.so 026da000-026db000 rw-p 00011000 fd:00 51559 /lib/libresolv-2.7.so 026db000-026dd000 rw-p 026db000 00:00 0 02e90000-02e9b000 r-xp 00000000 fd:00 51527 /lib/libgcc_s-4.1.2-20070925.so.1 02e9b000-02e9c000 rw-p 0000a000 fd:00 51527 /lib/libgcc_s-4.1.2-20070925.so.1 02f07000-02fe7000 r-xp 00000000 fd:00 5619850 /usr/lib/libstdc++.so.6.0.8 02fe7000-02feb000 r--p 000df000 fd:00 5619850 /usr/lib/libstdc++.so.6.0.8 02feb000-02fec000 rw-p 000e3000 fd:00 5619850 /usr/lib/libstdc++.so.6.0.8 02fec000-02ff2000 rw-p 02fec000 00:00 0 08048000-0807d000 r-xp 00000000 fd:00 88310 /usr/local/bin/openmcu 0807d000-08088000 rw-p 00034000 fd:00 88310 /usr/local/bin/openmcu 08088000-08089000 rw-p 08088000 00:00 0 08a6d000-08b85000 rw-p 08a6d000 00:00 0 [heap] b7800000-b7821000 rw-p b7800000 00:00 0 b7821000-b7900000 ---p b7821000 00:00 0 b796a000-b796b000 ---p b796a000 00:00 0 b796b000-b79ab000 rw-p b796b000 00:00 0 b79ab000-b79ac000 ---p b79ab000 00:00 0 b79ac000-b79ec000 rw-p b79ac000 00:00 0 b79ec000-b79ed000 ---p b79ec000 00:00 0 b79ed000-b7a2d000 rw-p b79ed000 00:00 0 b7a2d000-b7a2e000 ---p b7a2d000 00:00 0 b7a2e000-b7a6e000 rw-p b7a2e000 00:00 0 b7a6e000-b7a6f000 ---p b7a6e000 00:00 0 b7a6f000-b7aaf000 rw-p b7a6f000 00:00 0 b7aaf000-b7ab0000 ---p b7aaf000 00:00 0 b7ab0000-b7b16000 rw-p b7ab0000 00:00 0 b7b16000-b7b17000 ---p b7b16000 00:00 0 b7b17000-b7b57000 rw-p b7b17000 00:00 0 b7b57000-b7b58000 ---p b7b57000 00:00 0 b7b58000-b7b98000 rw-p b7b58000 00:00 0 b7b98000-b7b99000 ---p b7b98000 00:00 0 b7b99000-b7bd9000 rw-p b7b99000 00:00 0 b7bd9000-b7bda000 ---p b7bd9000 00:00 0 b7bda000-b7c1a000 rw-p b7bda000 00:00 0 b7c1a000-b7c1b000 ---p b7c1a000 00:00 0 b7c1b000-b7ca7000 rw-p b7c1b000 00:00 0 b7ca7000-b7ca8000 ---p b7ca7000 00:00 0 b7ca8000-b7ce8000 rw-p b7ca8000 00:00 0 b7ce8000-b7ce9000 ---p b7ce8000 00:00 0 b7ce9000-b7d29000 rw-p b7ce9000 00:00 0 b7d29000-b7d2a000 ---p b7d29000 00:00 0 b7d2a000-b7d6a000 rw-p b7d2a000 00:00 0 b7d6a000-b7d6b000 ---p b7d6a000 00:00 0 b7d6b000-b7dab000 rw-p b7d6b000 00:00 0 b7dab000-b7dac000 ---p b7dab000 00:00 0 b7dac000-b7dec000 rw-p b7dac000 00:00 0 b7dec000-b7ded000 ---p b7dec000 00:00 0 b7ded000-b7e2d000 rw-p b7ded000 00:00 0 b7e2d000-b7e2e000 ---p b7e2d000 00:00 0 b7e2e000-b7e6e000 rw-p b7e2e000 00:00 0 b7e6e000-b7e6f000 ---p b7e6e000 00:00 0 b7e6f000-b7eaf000 rw-p b7e6f000 00:00 0 b7eaf000-b7eb0000 ---p b7eaf000 00:00 0 b7eb0000-b7ef4000 rw-p b7eb0000 00:00 0 b7f00000-b7f01000 rw-p b7f00000 00:00 0 bfbec000-bfc01000 rw-p bffeb000 00:00 0 [stack] Aborted The system is Fedora8. Please let me know if more info is needed. myk "If you're clear in your vision and trust the people in your team with clear objectives, they will invariably do their best to achieve everything desired, and usually deliver everything you could have hoped for and even more." -Paul Debevec

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Re: [h323plus] H323 error codes
by mayank＠in.niksun.com 19 Sep '08

19 Sep '08

Thanks a lot Robert for your prompt response. I got confused with your answer. Actually I posted 2 questions so the answer if of which question. The 2 questions are Actually I am looking for error codes in H323 protocols. 1) In H225/Q931 what could be the error codes. Is these error codes comes along with the last message "Release complete message" ? are in between the call.I am able to find these kind of codes specifically in SIP with the response messages with their numbers(Ex:400,500,..),similarly the case with the MGCP protocol.But,I am very much confused with the H.323. 2)What could be the case with the H.245 protocol. On Friday 19 Sep 2008 12:24:00 pm Robert Jongbloed wrote: > Pretty sure it doesn't. > > > Robert Jongbloed > OPAL/OpenH323/PTLib Architect and Co-founder. > > > -----Original Message----- > > From: h323plus-bounces(a)lists.packetizer.com [mailto:h323plus- > > bounces(a)lists.packetizer.com] On Behalf Of mayank(a)in.niksun.com > > Sent: Friday, 19 September 2008 4:32 PM > > To: h323plus(a)lists.packetizer.com > > Subject: [h323plus] H323 error codes > > > > Hi all, > > > > In Q931 protocol is it necessary that the cause code will come in > > last > > message. Does H245 contains the cause codes. > > Thanks > > Mayank Jain -- ---------------------------------------------------------------------------- Regards Mayank Jain Nawal mayank(a)in.niksun.com http://www.niksun.com Tel: +91 9818390836 +91 124-2316012(109)

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H323 error codes
by mayank＠in.niksun.com 19 Sep '08

19 Sep '08

Hi all, In Q931 protocol is it necessary that the cause code will come in last message. Does H245 contains the cause codes. Thanks Mayank Jain

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(no subject)
by mayank＠in.niksun.com 19 Sep '08

19 Sep '08

-- ---------------------------------------------------------------------------- Regards Mayank Jain Nawal mayank(a)in.niksun.com http://www.niksun.com Tel: +91 9818390836 +91 124-2316012(109)

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Cosmetic issues PTLib v2.0.1 with VS2008-SP1
by Marcos Fábio Jardini 09 Sep '08

09 Sep '08

Hello Reporting some cosmetic issues during compiling PTLib on VS2008-SP1. The files: vsdl.cxx pvfiledev.cxx pstun.cxx Have the macro '#define P_FORCE_STATIC_PLUGIN', the VS compiler outputs: 1>..\..\ptclib\{one of above} : warning C4603: 'P_FORCE_STATIC_PLUGIN' : macro is not defined or definition is different after precompiled header use 1> Add macro to precompiled header instead of defining here 1> ..\..\ptclib\{one of above} : use of precompiled header But the <ptlib/pluginmgr.h> includes <ptlib/plugin.h>, the later already define 'P_FORCE_STATIC_PLUGIN' when compiling under _WIN32. So remove or comment the #define P_FORCE_STATIC_PLUGIN from: vsdl.cxx pvfiledev.cxx pstun.cxx //============================ sockets.cxx The '#include <ptlib.h>' is the pre-compiled header and MUST come 1st so, changing '#include <ptlib.h>' to come before '#ifdef __NUCLEUS_PLUS__' >>>before: #ifdef __NUCLEUS_PLUS__ #include <ConfigurationClass.h> #endif #include <ptlib.h> >>>after: #include <ptlib.h> #ifdef __NUCLEUS_PLUS__ #include <ConfigurationClass.h> #endif //============================ Error: sphelper.h(1170) GetUserDefaultUILanguage(): identifier not found Configure is using c:\program files\microsoft sdks\windows\v6.0a\ for Located Speech API compile without speech support. -- ----- Jogue RPG, alimente o lado criativo!

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