RE: Video codec for H.323 Annex I

22 Feb 2001


      Hi, Simao,
Thank you very much for your email. That would be a great idea. Enclosed is
the document that discribed the detailed simulation scenario condition. Time
seems to be quite tight for the document deadline of this meeting now.
I think most of the issues in the testing condition documents are settled
now. We have both agreed on use H.263 profile 3 and 4, generating bitstream
with packets fits the MTU, and ploting the rate distortion curve. If there
is any details in this document that Mr. Baese would like to discuss, he is
very welcome to bring it up.
See you in Tasmania.
Adam
----------
Adam H. Li
Image Communication Lab                    (310) 825-5178 (Lab)
University of California, Los Angeles      (310) 825-7928 (Fax)
...
-----Original Message-----
From: Simao Campos-Neto [mailto:simao.campos@labs.comsat.com]
Sent: Wednesday, February 21, 2001 2:20 AM
To: Adam Li
Cc: ITU-SG16@mailbag.cps.INTEL.COM
Subject: Re: Video codec for H.323 Annex I
Just a thought:
would it be possible to use a common implementation of H.263+,
e.g. by a third-party company that could volunteer to provide
encoded streams for parties implementing the H.323-I simulations
and decoding transmission-disturbed bitstreams provided back to
it? This would circumvent the unavailability of a common,
publicly available H.263 implementation and provide that the same
H.263 implementation is used by all parties.
Another option would be that one company provides e.g. an
executable version of H.263 (under a specific NDA for this
particular purpose) to the parties simulating H.323-I. This would
accomplish the same purpose.
All in support of a good spirit of cooperation!
Best regards,
Simao
--
=========
Simao Ferraz de Campos Neto, Scientist *All comments are strictly my own*
LMGT/COMSAT Laboratories               Tel:    +1-301-428-4516
22300 Comsat Drive                     Fax:    +1-301-428-9287
Clarksburg MD 20871 - USA              E-mail:
simao.campos@labs.comsat.com
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