[h323plus] OpenMCU 4CIF Issues
rudz04 at yahoo.ca
Fri Jul 4 16:40:56 EDT 2008
I tried using PacPhone v2.0.5 but I couldn't connect to openMCU. I also found that in the Video settings the bitrate and framerate configurations are reversed. Also, I am using an analog HD camera through a usb capture card that supports up to 4CIF but I could only transmit QCIF or VGA.
Do you think the error with PVX and OpenMCU is in the ffmpeg decoder, an un-expected header, or some other reason?
----- Original Message ----
From: Simon Horne <s.horne at packetizer.com>
To: Adrien Rudulier <rudz04 at yahoo.ca>; h323plus at lists.packetizer.com
Sent: Thursday, July 3, 2008 7:59:42 PM
Subject: RE: [h323plus] OpenMCU 4CIF Issues
are known outstanding issues with h323plus H.263 and Polycom PVX and
anyone can assist in resolving these issues, a contribution would be greatly
You can try using PacPhone it supports 4CIF and
is built off h323plus.
From: h323plus-bounces at lists.packetizer.com [mailto:h323plus-bounces at lists.packetizer.com]On Behalf Of Adrien Rudulier
Sent: Friday, 4 July 2008 6:36 AM
To: h323plus at lists.packetizer.com
Subject: [h323plus] OpenMCU 4CIF Issues
I am currently using the newest versions (as of July 2, 2008) of ptlib(2.3.0), h323plus(1.20.5) and openmcu(2.2.4) from cvs on Ubuntu 8.04. I installed the plugins correctly and openmcu runs fine. However when using two polycom pvx clients to connect to openmcu using H.263 at 4CIF for both transmitting and receiving, the video is blocky and very distorted. There is no packet loss, the bitrate is set to 1920 kbps and the frame rate is a constant 30 fps for both transmitting and receiving. I was wondering if the problem is with openmcu or the pvx clients. Has anyone successfully used 4CIF resolution to be clear and smooth? Also, I had to massage the h.263 plugin code to get 4CIF to work with openmcu. Any help would greatly be appreciated.
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