[h323plus] Updated H.264 Plugin

Simon Horne s.horne at packetizer.com
Sun May 9 18:22:44 EDT 2010


That should limit the video size in either direction to no more that CIF. 



From: Pablo Sotomayor [mailto:pablo at sotomayor.com.br] 
Sent: Saturday, 8 May 2010 11:32 PM
To: Simon Horne
Cc: h323plus at lists.packetizer.com
Subject: Re: [h323plus] Updated H.264 Plugin

Hi Simon, 

I've been testing this h323plus version for the last days. 
I have downloaded the code from the cvs repository, configured, compiled and
installed it on a new ubuntu 10.04 system.

Using a quad-core xeon poweredge server, and 3 polycom camera appliances (2
VSX7000A and 1 VSX5000), i have H264 videoconference on the lab. But when
the a 384/512/768kbps call is stablished, the Polycom endpoints turns to
"slow-motion operation mode". When i saw the call statistics on polycom, i
can see the audio/video info. It says that VSX7000 is sending SIF (352x240)
and receiving 4CIF (704x576) video. These appliances are runnung polycoms
8.03 (oct-2005) and 8.53 (2007) firmware. Its supports native H264 video
calls up to 768kbps (vsx5000) and 1920kbps (vsx7000) but i thinks 4CIF video
is enought resolution.

How can i force the openmcu to send a slower resolution like CIF (352x288)
for the endpoints?


On May 3, 2010, at 9:59 AM, Simon Horne wrote:

An updated H.264 plugin has been added to the CVS. 
Quite a lot of fixes have been made especially in the HD area. 
720p support has been enabled.

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