[Asterisk-video] Videomixing in MeetMe
Klaus Darilion
klaus.mailinglists at pernau.at
Thu Jun 14 07:48:01 CDT 2007
Hi Lorenzo!
How can the VideoMixer be used with Asterisk?
regards
klaus
Lorenzo Miniero wrote:
> Hi all,
>
> I just uploaded on the CONFIANCE webpage, http://confiance.sf.net/, the
> patch to enable videomixing and continuous presence in MeetMe. The patch
> enables such functionality both for our enhanced MeetMe (i.e. video
> sources are enabled/disabled through BFCP moderation) and for basic
> MeetMe rooms (the videoswitch console command I uploaded some time ago
> is used to enable/disable video sources). All the instructions needed to
> build and configure it are attached with the patch.
>
> To provide such a feature MeetMe can make use of two videomixers:
>
> * the CONFIANCE VideoMixer we're writing (available on
> http://confiance.sf.net/);
> * the VideoMixer Sergio Garcia Murillo is writing (available via
> svn, svn co http://sip.fontventa.com/svn/mcu, needs xmlrpc-c 1.1).
>
> You can choose which one to use by setting a value in the configuration
> file. You can even disable them both and still rely on basic
> videoswitching, if you're not interested in videomixing...
>
> All is work in progress, so both Sergio and I would really appreciate
> any kind of feedback you'll be able to provide us.
>
> I'll spend two words on my work, and I'll let Sergio speak of his own
> since I couldn't do it better than him. The CONFIANCE VideoMixer
> currently provides:
>
> * adaptive layouts according to how many active video sources are
> feeding the mix;
> * continuous presence for up to 8 users (this can be easily enhanced
> by adding new layouts in the code; if you look at the code, you'll see
> that creating and modifying layouts is really simple);
> * a static logo when no video sources are active;
> * support for H.261, H.263 and H.263+ (QCIF only for the moment).
>
> Currently, only one global layout is available for all users in the same
> conference, but this will be changed in the future.
>
> We tested it with many softphones, as:
>
> * Minisip, one the softphone we're enhancing to add XCON support,
> and which makes use of H.263+ as codec;
> * another custom client we're writing, making use of H.263 (JMF);
> * X-Lite 3.0, H.263;
> * Ekiga stable 2.0.x (H.261).
>
> All work quite fine except Ekiga, since H.261 support in our videomixer
> is still quite buggy (probaby related to how we handle the H,261 payload
> header), and sometimes makes Ekiga crash. Any feedback upon this will be
> more than welcome!
>
>
> If you're interested in knowing something more about the implementation
> details and/or how the videomixers have been integrated in MeetMe, feel
> absolutely free to ask.
>
>
> Hope to hear you soon, regards,
> Lorenzo
>
More information about the asterisk-video
mailing list