Re: [GnomeMeeting-list] Re: current H.263 support

["Damien Sandras" <dsandras seconix com>]

> Hi,
>
> Thanks for the quick response. I still, however, have some
> questions:
>
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>> Scott Koranda schrieb:
>>
>> > Can gnomemeeting use H.263 for video?
>> Yes.
>>
>> > I do have openh323-1.15.3 built with
>> >
>> > ./configure --enable-rfc2190avcodec=dir"
>> >
>> > and I have the FFMPEG library in place.
>> Yes, read the FFMPEG and OpenH323 README/INSTALL for more information.
>
> I have done that. In addition I have read the details at
>
> http://www.voxgratia.org/docs/h263_codec.html
>
> When I put the openh323-1.15.3 in place with the FFMPEG
> library and called the polycomm using gnomemeeting 1.2.1 the
> polycomm reported it was receiving a H.261 stream.
>
> So I moved the FFMPEG library out of the way and started
> gnomemeeting again and saw the message
>
> Cannot find libavcodec.so as required for RFC2190 H.263 video codec.
> This function may appear to be installed, but will not operate correctly.
> Please put the file libavcodec.so into one of the following directories:
>  /usr/lib/pwlib
>  This list of directories can be set using the PWLIBPLUGINDIR environment
>
> This indicated to me that I did have things set up properly in
> the first place.
>
> So I put he FFMPEG library back into place but still the
> polycomm reports that gnomemeeting 1.2.1 is sending a H.261
> stream.
>
> So my questions are:
>
> - can gnomemeeting 1.2.1 send a H.263 stream when
>   openh323-1.15.3 is built with
>
>   ./configure --enable-rfc2190avcodec
>
>  and the FFMPEG library is in place?
>

Yes, but you have to add a few lines of code in src/endpoint.cpp, method
"AddVideoCapabilities".

Those lines of code are given on voxgratia.org. Put them before the H.261
capabilities and H.263 will have the priority.

Now that patents have been rejected in Europe, we will be able to do
something when I'm back, perhaps for GnomeMeeting 1.2.2.


> - if so, can I force H.263?
>
> - if not, will a newer version of gnomemeeting from CVS work?
>   Can I force H.263?
>
>>
>> I am happy to use a CVS build if that is necessary.
>> CVS snapshots can be found on http://snapshots.seconix.com/cvs/ .
>> gnomemeeting is the "old" one based on OpenH323.
>
> Can I use the RPMS at
>
> http://snapshots.seconix.com/redhat/fedora_core_3/i386/
>
> It appears that the version in the snapshot wants opal:
>

Yes it is the SIP version, without video support.

> [root oregano ~]# rpm -Uvh
> gnomemeeting-snapshot-2005.07.08-CVS.i386.rpm
>  error: Failed dependencies:
>         libopal_linux_x86_r.so.2 is needed by
> gnomemeeting-snapshot-2005.07.08-CVS.i386
>         libpt.so.1.9.1 is needed by
> gnomemeeting-snapshot-2005.07.08-CVS.i386
>         opal >= 1.15.2 is needed by
> gnomemeeting-snapshot-2005.07.08-CVS.i386
>         pwlib >= 1.8.3 is needed by
> gnomemeeting-snapshot-2005.07.08-CVS.i386
>
> So does this mean that the RPM snapshot is the "opal" version
> and will not have video support?
>

Indeed.

>> gnomemeeting-opal is the "new" one ( GM Next Generation ), with SIP but
>> currently without video support, based on the opal library.
>>
>> Gnomemeeting is the one you seek, however we all would be happy if you
>> would help us test gnomemeeting-opal!
>
> I would like to, but I need video. We are trying to use
> Gnomemeeting with the VRVS reflector network to deliver
> videoconferencing for a meeting. See
>
> http://www.vrvs.org/
>
> http://www.lsc-group.phys.uwm.edu/OSG/
>
> If I can get it to work then I will have time after the
> meeting to try out gnomemeeting-opal.
>
> Cheers,
>
> Scott
>
>
>>
>> Greetings,
>> Jan Schiefer
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