[h323plus] Adding H263 codec to openmcu
mike at bridgeconference.co.za
Fri Jan 8 06:29:12 EST 2010
I try install ffmpeg 0.4.7 from
http://www.voxgratia.org/bin/ffmpeg-0.4.7.tar.gz but I get the following:
make -C libavcodec all
make: 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,
common.h:65: error: array type has incomplete element type
common.h:69: error: array type has incomplete element type
make: *** [common.o] Error 1
make: 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
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
I will have a look at installing ffmpeg 0.4.7 direct from ffmpeg site.
So I am closer....
Thanks again for the help.
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
> Once that is done, download the plugins directory from 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,
> 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
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