February 2011 - h323plus - lists.packetizer.com

Re: [h323plus] [Opalvoip-devel] error H.263
by Simon Horne 22 Feb '11

22 Feb '11

Jan You are correct . To match to a bandwidth the encoder must know frame size and rate. The plugin support is very much h323plus specific. You can calculate the frame size/rate by using the internal table or can use a supplied list of supported frame sizes/rates. These can be manually coded from largest to smallest or retrieved from the video input device. DirectShow for instance supports retrieving the list of supported sizes and rates via calling PVideoInputDevice:: GetDeviceCapabilities(). These can be passed to the codec via calling PLUGINCODEC_CONTROL_SET_FORMAT_OPTIONS. In h323plus the function to do this is H323VideoCodec::SetSupportedFormats. The function returns the default frame size and rate for the given bitrate that is supported by the input device. Then you can set the input device with the returned frame size /rate in the MyH323Endpoint::OpenVideoChannel. See Applications/SimplePlus for example of how that is done. The bandwidth (and level\MBPS etc) values for the X264 Encoder is set by PLUGINCODEC_CONTROL_SET_CODEC_OPTIONS which is called after the local and remote capabilities have been merged in h323plus. Then there is flowControl which does basically the same thing. You pass to the plugin a bitrate value via PLUGINCODEC_CONTROL_FLOW_OPTIONS it then returns a supported frame size/rate (internal or supplied earlier) then you pass these value to the input device via calling PVideoInputDevice:: FlowControl(). The architecture of Opal has deviated a lot from its h323plus roots and I think there is a lot more things to consider to getting this to work with it. Simon -----Original Message----- From: Jan Willamowius [mailto:jan@willamowius.de] Sent: 22 February 2011 18:46 To: opalvoip-devel(a)lists.sourceforge.net Subject: Re: [Opalvoip-devel] error H.263 When I debugged a similar bandwidth issue on H323Plus a few months ago, I found that the bit rate setting was passed to the encoder correctly, but to correctly meet this target the encoder needs to know the correct values of influencing parameters, like the frame rate. In my case the frame rate wasn't passed in correctly, so the encoder kept producing video at the wrong rate. I haven't fixed the issue back then, but worked around it. I'm not sure if anybody else has (or if the same applies to the OPAL version of the codec). Regards, Jan Robert Jongbloed wrote: > Quick question on this helper app, do you know if the bit rate control > works with it? > > > > As far as I can tell, I am setting it to 256kbps and it is still > sending at 4Mbps. So, before I go digging deeper, I was hoping for a > bit of a sanity check. > > > > Thank you very much! > > > > Robert Jongbloed > > OPAL/OpenH323/PTLib Architect and Co-founder. > > > > From: Simon Horne [mailto:s.horne@packetizer.com] > Sent: Monday, 7 February 2011 10:01 PM > To: 'Robert Jongbloed'; 'ZAHRA dehghanianfard' > Cc: 'opal'; 'opal'; h323plus(a)lists.packetizer.com > Subject: RE: error H.263 > > > > I think both the opal and h323plus community can benefit. > > http://www.h323plus.org/source/download/ffmpeg_x264.zip > > > > Place all files in your application directory. > > The FFMPEG (with w32threads) and X264 is built with mingw/msys. > x264plugin_helper.exe is built with vs2008 and requires vs2008 runtime. > > > > Simon > > > > From: Robert Jongbloed [mailto:robertj@voxlucida.com.au] > Sent: 07 February 2011 15:48 > To: ZAHRA dehghanianfard > Cc: opal; opal > Subject: Re: [Opalvoip-devel] error H.263 > > > > The answer to your questions are: > > > > 1) Yes, but you need to compile it. > > 2) The result of compiling it is a DLL > > 3) You will have to figure out why it doesn't compile under windows. > > > > > > I have to admit to not being able to get the H.263 (or x264) codecs to > compile and work under Windows, though I have only tried somewhat briefly. > Unfortunately the authors of all the libraries mainly use Linux, > though it is my understanding that it can be compiled using MinGW/Cygwin. > > > > > > I am sure the OPAL community would be incredibly grateful to anyone > that can provide a pre-built binary for the H.263 (and x264!) codec. > > > > > -------- > > Robert Jongbloed > > Vox Lucida Pty. Ltd. > > > > > > > > On 03/02/2011, at 5:33 PM, ZAHRA dehghanianfard wrote: > > > > > Hi robert. > > Many thanks for your last support; I need to use OpenPhone3.8.2 by > H.263 codec run. > > 1) Is OpenPhone 3.8.2 with Opal 3.8.2 & Ptlib2.8.2 support H.263 codec > inside? > > 2) If the above response is YES, Are you suggesting any H.263 DLL file? > > 3) I find a source that name is "H.263-1998" then I download that and > compiles it but I find below Error inside: > > > > 1>------ Build started: Project: H.263-1998 (FFMPEG) Video Codec, > Configuration: Debug Win32 ------ > 1>Compiling... > 1>h263pframe.cxx > 1>c:\opal\plugins\video\h.263-1998\../common/ffmpeg.h(155) : fatal > 1>error > C1083: Cannot open include file: 'libavcodec\avcodec.h': No such file > or directory > 1>h263-1998.cxx > 1>c:\opal\plugins\video\h.263-1998\../common/ffmpeg.h(155) : fatal > 1>error > C1083: Cannot open include file: 'libavcodec\avcodec.h': No such file > or directory > 1>Generating Code... > 1>Build log was saved at > "file://c:\opal\plugins\Debug\H263-1998\BuildLog.htm > <file:///c:\opal\plugins\Debug\H263-1998\BuildLog.htm> " > 1>H.263-1998 (FFMPEG) Video Codec - 2 error(s), 0 warning(s) > ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped > ========== > > > > I try to solve this problem by download a "libavcodec" that use some > header & DLL file that I copy in "C:\opal\plugin\video\common" but I > take below > error: > > > > > > 1>------ Build started: Project: H.263-1998 (FFMPEG) Video Codec, > Configuration: Debug Win32 ------ > 1>Compiling... > 1>h263pframe.cxx > 1>c:\opal\plugins\video\h.263-1998\../common/ffmpeg.h(185) : fatal > 1>error > C1189: #error : Libavcodec LIBAVCODEC_VERSION_INT too old. > 1>h263-1998.cxx > 1>c:\opal\plugins\video\h.263-1998\../common/ffmpeg.h(185) : fatal > 1>error > C1189: #error : Libavcodec LIBAVCODEC_VERSION_INT too old. > 1>Generating Code... > 1>Build log was saved at > "file://c:\opal\plugins\Debug\H263-1998\BuildLog.htm > <file:///c:\opal\plugins\Debug\H263-1998\BuildLog.htm> " > 1>H.263-1998 (FFMPEG) Video Codec - 2 error(s), 0 warning(s) > ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped > ========== > > > > Please guide me to i can have H.263 codec with DLL & source over > OpenPhone > 3.8.2 here. > > I am in wait for your response. > > Best Regards. > > Zahra. -- Jan Willamowius, jan(a)willamowius.de, http://www.gnugk.org/ ---------------------------------------------------------------------------- -- Index, Search & Analyze Logs and other IT data in Real-Time with Splunk Collect, index and harness all the fast moving IT data generated by your applications, servers and devices whether physical, virtual or in the cloud. 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Re: [h323plus] error H.263
by Vladimir Fekete 14 Feb '11

14 Feb '11

Hello Robert, 1) I went directly to plugins/video/H.263 ffmpeg/ directory (after I compiled ptlib and opal) 2) downloaded http://www.voxgratia.org/bin/libavcodec-0.4.7-windows.bin.zip as is written in readme file and unzipped it into plugins/video/H.263 ffmpeg/ffmpeg 3) I've opened the 'h263ffmpeg_2005.vcxproj' file and saved solution which VS2010 created for this project 4) Build it 5) No errors - result is ../../Debug/h263ffmpeg_pwplugin.dll (and the rest things such as .pdb file) Best regards, Vladimir P.S> this is resubmitted, because last time I just replied to Robert and did not used the other addresses as well. Sorry about that.

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h323plus CVS back up
by Simon Horne 10 Feb '11

10 Feb '11

To ALL Just a quick note that the h323plus CVS is now back online. Simon

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lost rtp packets and using jitter for video session
by Igor Pavlov 08 Feb '11

08 Feb '11

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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Blocking of TCS and MSD messages
by Mark Fawcett 08 Feb '11

08 Feb '11

All, I am making an outgoing call from h323plus to an SJPhone endpoint using fast-start. All seems well, the h323plus sends the setup message with fs (specifying g711alaw) and the remote end responds with callProceeding / alerting / connect. The connect message contains a fast-start OLC itself and all is good. However, the h323plus stack then issues TCS and MSD messages. We are being asked if these can be stopped (my understanding is that Fast-Start allows for connectivity to be made with just the setup & connect messages)? Many thanks for your time. Cheers Mark Mark Fawcett Managing Director +44 (0)7976 240171 (M) +44 (0)8454 336886 (x1001) (L) www.noakesltd.co.uk Noakes Limited, Registration #06920566 (England & Wales), 2 Berkeley Close, Northampton, NN1 5BJ

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Question regarding g711Alaw codec and preferred packet size
by Mark Fawcett 08 Feb '11

08 Feb '11

All, I am struggling with what I suspect is a very simple question: How do I make an outgoing call via h323 specify 20ms packets for the g711Alaw codec instead of the default 30ms? Many thanks, Mark Mark Fawcett Managing Director +44 (0)7976 240171 (M) +44 (0)8454 336886 (x1001) (L) www.noakesltd.co.uk Noakes Limited, Registration #06920566 (England & Wales), 2 Berkeley Close, Northampton, NN1 5BJ

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Re: [h323plus] error H.263
by Simon Horne 07 Feb '11

07 Feb '11

I think both the opal and h323plus community can benefit. http://www.h323plus.org/source/download/ffmpeg_x264.zip Place all files in your application directory. The FFMPEG (with w32threads) and X264 is built with mingw/msys. x264plugin_helper.exe is built with vs2008 and requires vs2008 runtime. Simon From: Robert Jongbloed [mailto:robertj@voxlucida.com.au] Sent: 07 February 2011 15:48 To: ZAHRA dehghanianfard Cc: opal; opal Subject: Re: [Opalvoip-devel] error H.263 The answer to your questions are: 1) Yes, but you need to compile it. 2) The result of compiling it is a DLL 3) You will have to figure out why it doesn't compile under windows. I have to admit to not being able to get the H.263 (or x264) codecs to compile and work under Windows, though I have only tried somewhat briefly. Unfortunately the authors of all the libraries mainly use Linux, though it is my understanding that it can be compiled using MinGW/Cygwin. I am sure the OPAL community would be incredibly grateful to anyone that can provide a pre-built binary for the H.263 (and x264!) codec. -------- Robert Jongbloed Vox Lucida Pty. Ltd. On 03/02/2011, at 5:33 PM, ZAHRA dehghanianfard wrote: Hi robert. Many thanks for your last support; I need to use OpenPhone3.8.2 by H.263 codec run. 1) Is OpenPhone 3.8.2 with Opal 3.8.2 & Ptlib2.8.2 support H.263 codec inside? 2) If the above response is YES, Are you suggesting any H.263 DLL file? 3) I find a source that name is "H.263-1998" then I download that and compiles it but I find below Error inside: 1>------ Build started: Project: H.263-1998 (FFMPEG) Video Codec, Configuration: Debug Win32 ------ 1>Compiling... 1>h263pframe.cxx 1>c:\opal\plugins\video\h.263-1998\../common/ffmpeg.h(155) : fatal error C1083: Cannot open include file: 'libavcodec\avcodec.h': No such file or directory 1>h263-1998.cxx 1>c:\opal\plugins\video\h.263-1998\../common/ffmpeg.h(155) : fatal error C1083: Cannot open include file: 'libavcodec\avcodec.h': No such file or directory 1>Generating Code... 1>Build log was saved at "file://c:\opal\plugins\Debug\H263-1998\BuildLog.htm <file:///c:\opal\plugins\Debug\H263-1998\BuildLog.htm> " 1>H.263-1998 (FFMPEG) Video Codec - 2 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== I try to solve this problem by download a "libavcodec" that use some header & DLL file that I copy in "C:\opal\plugin\video\common" but I take below error: 1>------ Build started: Project: H.263-1998 (FFMPEG) Video Codec, Configuration: Debug Win32 ------ 1>Compiling... 1>h263pframe.cxx 1>c:\opal\plugins\video\h.263-1998\../common/ffmpeg.h(185) : fatal error C1189: #error : Libavcodec LIBAVCODEC_VERSION_INT too old. 1>h263-1998.cxx 1>c:\opal\plugins\video\h.263-1998\../common/ffmpeg.h(185) : fatal error C1189: #error : Libavcodec LIBAVCODEC_VERSION_INT too old. 1>Generating Code... 1>Build log was saved at "file://c:\opal\plugins\Debug\H263-1998\BuildLog.htm <file:///c:\opal\plugins\Debug\H263-1998\BuildLog.htm> " 1>H.263-1998 (FFMPEG) Video Codec - 2 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== Please guide me to i can have H.263 codec with DLL & source over OpenPhone 3.8.2 here. I am in wait for your response. Best Regards. Zahra. ---------------------------------------------------------------------------- -- Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d__________________________________________ _____ Opalvoip-devel mailing list Opalvoip-devel(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/opalvoip-devel

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OpenH323 version is 1.22.0 Compilation problems
by Jose P. Espinal 01 Feb '11

01 Feb '11

Hello List, I'm not sure this is the correct list to post this message, but searching on Google was not of much help. NOTE: Please feel free to point me to the correct place to search (in the case that this is not the correct list for this) I'm trying to install OpenH323 1.22.0 on Slackware Linux 13.0, I installed (without problems) ptlib-2.8.3 In the moment I run the ./configure script inside h323plus-1.22.0/ directory, it ends with the following error: ----- checking for /usr/include/ptlib/version.h... no Cannot find ptlib - please install or set PTLIBDIR and try again ----- I tried setting PTLIBDIR and PWLIBDIR, but had no luck. Is good to note that the system can see ptlib-config: ----- root@testbox_a:~# ptlib-config --version --libdir 2.8.3 /usr/lib ----- Also, I tried doing: touch /usr/include/ptlib/version.h , and after that, the configure script seems to go through without problem. Questions: a. What I'm missing here? b. What would be the possible consequences of creating an empty version.h, using 'touch'? (Will with break something?) PS. Sorry if any of this questions sounds obvious to you, I could not find any README or INSTALL doc inside sources packages. -- Jose P. Espinal http://www.eSlackware.com IRC: Khratos @ #asterisk / -doc / -bugs

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FYI: CVS Down
by Simon Horne 01 Feb '11

01 Feb '11

Guys http://sourceforge.net/blog/sourceforge-net-attack/ Both H323plus and Gnugk CVS are still currently down. Will advise when it will be operational again. Simon

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