[h323plus] Adding H263 codec to openmcu

Prasad Mohire prasadmohire at gmail.com
Mon Jan 11 04:00:39 EST 2010


HI Michael,

I havent compiled the ffmpeg 0.47 at my end. There is a precompiled
libavcodec.so I found on net. It worked fine for me.
You can download it from
http://www.voxgratia.org/bin/libavcodec-0.4.7-linux.bin.tar.gz.
Since you have already compiled H.263 plug-in just rename libavcoded.so in
downloaded tar.gz to avcodec and put it into $PWLIBPLUGINDIR and run
openmcu.

It should work fine if the architecture of machine on which this .so is
compiled matches with your machine's architecture. (I happened in my case).
I could see pretty fine video with this ffmpeg.


Thanks,
- Prasad



On Mon, Jan 11, 2010 at 2:14 PM, Michael Bondi
<mike at bridgeconference.co.za>wrote:

> Hi Jan,
>
> Any idea of when the new ffmpeg 0.5 will be able to be compiled with h323
> support?
>
> Are you able to supply me with your patched ffmpeg 0.4.7 so I can continue
> with my current compilation with gcc 4.3, albeit an inelegant solution?
>
> I'd like to learn how the openmcu works with your fantastic gnugk before
> the day is over.
>
> Mike
>
>
> Jan Willamowius wrote:
>
>> Yes, the old ffmpeg code doesn't compile with gcc 4.x.
>>
>> Jan
>>
>> Michael Bondi wrote:
>>
>>
>>> Hi Jan,
>>>
>>> It appears that I have ver 4.3 of gcc.
>>>
>>> Could that be the reason for the ffmpeg 0.4.7 make failure?
>>>
>>> Thanks
>>>
>>> Mike
>>>
>>>
>>> Jan Willamowius wrote:
>>>
>>>
>>>> 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
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>>
>>
>
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