<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">Simon,<br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><br>I read on a forum that Polycom uses the i263 codec library. It also said that it uses the YUY2( YUV422 ) color space model. I have been trying to convert the decoded YUV422 stream into the YUV420P stream via ptlib but I am having troubles with the YUY2toYUV420PSameSize function in vconvert.cxx crashing during the first execution. Do you have any thoughts on this?<br><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">----- Original
Message ----<br>From: Simon Horne <s.horne@packetizer.com><br>To: Adrien Rudulier <rudz04@yahoo.ca>; h323plus@lists.packetizer.com<br>Sent: Friday, July 4, 2008 6:12:23 PM<br>Subject: RE: [h323plus] OpenMCU 4CIF
Issues<br><br><style type="text/css">DIV {
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<div><span class="640025623-04072008"><font size="2" color="#0000ff" face="Arial">Adrien</font></span></div><div><span class="640025623-04072008"><font size="2" color="#0000ff" face="Arial"></font></span> </div><div><span class="640025623-04072008"><font size="2" color="#0000ff" face="Arial">BitRate and FrameRate reversed in PacPhone? That a display
issue. Well I better fix that. :-)</font></span></div><div><span class="640025623-04072008"><font size="2" color="#0000ff" face="Arial"></font></span> </div><div><span class="640025623-04072008"><font size="2" color="#0000ff" face="Arial">The
issue is in the ffmpeg decoder library. From past discussions it a setting issue
in the library however the person who found the issue never contributed it back
to the project. A contribution to fix the issue from anyone would be
very most welcomed.</font></span></div><div><span class="640025623-04072008"><font size="2" color="#0000ff" face="Arial"></font></span> </div><div><span class="640025623-04072008"><font size="2" color="#0000ff" face="Arial">Simon</font></span></div><blockquote style="border-left: 2px solid rgb(0, 0, 255); padding-left: 5px; margin-left: 5px;"><div class="OutlookMessageHeader" dir="ltr" align="left"><font size="2" face="Tahoma">-----Original Message-----<br><b>From:</b> Adrien Rudulier
[mailto:rudz04@yahoo.ca]<br><b>Sent:</b> Saturday, 5 July 2008 6:41
AM<br><b>To:</b> Simon Horne; h323plus@lists.packetizer.com<br><b>Subject:</b>
Re: [h323plus] OpenMCU 4CIF Issues<br><br></font></div><div style="font-size: 12pt; font-family: times new roman,new york,times,serif;"><div style="font-size: 12pt; font-family: times new roman,new york,times,serif;">Simon,<br><br>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.<br><br>Do you think
the error with PVX and OpenMCU is in the ffmpeg decoder, an un-expected
header, or some other reason?<br><br>Adrien<br><br><div style="font-size: 12pt; font-family: times new roman,new york,times,serif;">-----
Original Message ----<br>From: Simon Horne
<s.horne@packetizer.com><br>To: Adrien Rudulier <rudz04@yahoo.ca>;
h323plus@lists.packetizer.com<br>Sent: Thursday, July 3, 2008 7:59:42
PM<br>Subject: RE: [h323plus] OpenMCU 4CIF Issues<br><br><style type="text/css">DIV {
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</style> <div><span class="125355501-04072008"><font size="2" color="#0000ff" face="Arial">Adrien</font></span></div><div><span class="125355501-04072008"><font size="2" color="#0000ff" face="Arial"></font></span> </div><div><span class="125355501-04072008"><font size="2" color="#0000ff" face="Arial">There are known outstanding issues with h323plus H.263 and
Polycom PVX and VS7000. </font></span></div><div><span class="125355501-04072008"><font size="2" color="#0000ff" face="Arial">If
anyone can assist in resolving these issues, a contribution would be greatly
appreciated. </font></span></div><div><span class="125355501-04072008"><font size="2" color="#0000ff" face="Arial"></font></span> </div><div><span class="125355501-04072008"><span class="125355501-04072008"><font size="2" color="#0000ff" face="Arial">You can try using PacPhone it supports 4CIF
and is built off h323plus.</font></span></span></div><div><span class="125355501-04072008"><font size="2" color="#0000ff" face="Arial"></font></span> </div><div><span class="125355501-04072008"><font size="2" color="#0000ff" face="Arial">Simon</font></span></div><blockquote style="border-left: 2px solid rgb(0, 0, 255); padding-left: 5px; margin-left: 5px;"><div class="OutlookMessageHeader" dir="ltr" align="left"><font size="2" face="Tahoma">-----Original Message-----<br><b>From:</b>
h323plus-bounces@lists.packetizer.com
[mailto:h323plus-bounces@lists.packetizer.com]<b>On Behalf Of </b>Adrien
Rudulier<br><b>Sent:</b> Friday, 4 July 2008 6:36 AM<br><b>To:</b>
h323plus@lists.packetizer.com<br><b>Subject:</b> [h323plus] OpenMCU 4CIF
Issues<br><br></font></div><div style="font-size: 12pt; font-family: times new roman,new york,times,serif;"><div>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.<br><br>Adrien Rudulier<br></div></div><br><hr size="1">
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