[h323plus] Adding H263 codec to openmcu

[Jan Willamowius]

I have a patched version of ffmpeg-0.4.7, that compiles with gcc 4.4.x,
but there is work going on to let the H.323-ffmpeg plugin compile with
current versions of ffmpeg, which is a much better solution.

Regards,
Jan

Michael Bondi wrote:
> Thanks Prasad,
> 
> I try install ffmpeg 0.4.7 from 
> http://www.voxgratia.org/bin/ffmpeg-0.4.7.tar.gz but I get the following:
> 
> voyage:~/ffmpeg-0.4.7# make
> make -C libavcodec all
> make[1]: Entering directory `/root/ffmpeg-0.4.7/libavcodec'
> gcc -O3 -Wall -g -DHAVE_AV_CONFIG_H -I.. -D_FILE_OFFSET_BITS=64 
> -D_LARGEFILE_SOURCE -D_GNU_SOURCE -c -o common.o common.c
> In file included from avcodec.h:14,
>                  from common.c:27:
> common.h:65: error: array type has incomplete element type
> common.h:69: error: array type has incomplete element type
> make[1]: *** [common.o] Error 1
> make[1]: Leaving directory `/root/ffmpeg-0.4.7/libavcodec'
> make: *** [lib] Error 2
> 
> But I proceed and continue  to configure and make and make install the 
> a/v pugins in the ~/h323plus/plugins directory.
> 
> I create a directory ~/codecs and copy both 
> h263-ffmpeg_video_pwplugin.so and libavcodec.so (from the 
> libavcodec-0.4.7-linux.bin.tar.gz file) into there. I rename 
> libavcodec.so to avcodec
> 
> I set export P_T_LIBPLUGINDIR=~/codecs           (does this have to be 
> P_W_LIBPLUGINDIR ?????)
> 
> I run openmcu and connect with Polycom PVX, and I see the video 
> window!!  But the video has strange lines with pink and blue colours, 
> but it is the video from the webcam!
> 
> I assume it may be because I do not have the ffmpeg 0.4.7 installed 
> correctly?
> 
> I will have a look at installing ffmpeg 0.4.7 direct from ffmpeg site.
> 
> So I am closer....
> 
> Thanks again for the help.
> 
> Mike
> 
> 
> Prasad Mohire wrote:
> > HI Michael,
> >
> > I guess you have compiled PTLIB and H323plus and OpenMCU correctly. 
> > H323plus doesn't need ffmpeg. ffmpeg is needed by h323plus avplugin. 
> > You were able to hear audio because h323plus comes with G711 codecs. 
> > You will need to build H263 plugin separately.
> >
> > h263 plugin needs ffmpeg version 0.47. To install it:
> >  run ./configure --enable-shared, then make and make install in ffmpeg 
> > directory.
> >
> > Once that is done, download the plugins directory from h323plus.com 
> > <http://h323plus.com>.
> > untar the direcory under h323plus directory so that you will have 
> > plugins directory under h323plus.
> > Goto plugins directory.
> > run ./configure
> > You should see h263 : yes in output of configure script. This means it 
> > will build H.263 plugin. If it is 'no' there is something wrong with 
> > prerequisites i.e. ffmpeg. make sure that libavcodec.h file is in 
> > include path.
> >
> > once you see H.263: yes as output, run make and make install in 
> > plugins directory.
> > create a directory to store the plugins. Set environment variable 
> > PWLIBPLUGINDIR pointing to that directory. Copy 
> > h323plus/plugins/video/h.263/h263-ffmpeg_video_pwplugin.so file to 
> > $PWLIBPLUGINDIR. Copy libavcoded.so to $PWLIBPLUGINDIR  and rename it 
> > to avcodec.
> >
> > Now start openmcu, it should load with H.263 capability.
> >
> > File "C:\\traces.txt" will be created in directory from which you will 
> > start openmcu. You can see what all capabilities are added while 
> > openmcu is started in that file.
> >
> >
> > Thanks and Regards,
> > Prasad.
> >
> >
> > On Fri, Jan 8, 2010 at 3:32 PM, Michael Bondi 
> > <mike at bridgeconference.co.za <mailto:mike at bridgeconference.co.za>> wrote:
> >
> >     Hi all and Happy 2010!
> >
> >     This may have been asked before, but I cannot help myself but to
> >     ask again.
> >
> >     I have compiled ptlib 2.4.5 and h323plus 1.21 and openmcu 2.2.5 on
> >     a Debian 5 machine.
> >
> >     I am able to connect and hear the tones and message for connecting
> >     but am unable to get video on the screen.
> >
> >     I have tried compiling h323plus with only the 0.4.7 ffmpeg
> >     libavcodec.so placed in a directory /root/codec and compiled with
> >     ./configure --enable-rfc2190avcodec=/root/ffmpeg switch, all
> >     compiles fine, but still no h.263 video. Is there any more I need
> >     to do here?
> >
> >     Also, I am getting confused where to unpack and install the a/v
> >     plugins from file
> >     http://www.h323plus.org/source/download/plugins-v1_21_0.tar.gz
> >
> >     Thanks
> >
> >     Mike
> >
> >


-- 
Jan Willamowius, jan at willamowius.de, http://www.gnugk.org/