The meaning of "mode" in the H.323 Recommendation?

[Mike Nilsson]

Frank, Paul,

Mode is defined in H.245 as:

Mode: A mode is a set of elementary streams that a terminal is transmitting,
intends to transmit, or would like to receive.

and elementary stream is defined as:

Elementary Stream: Elementary Stream is a generic term for a coded video,
coded audio or other coded bitstream.


Best regards

Mike

--------------------
Mike Nilsson
Advanced Video Services
B81 Room 102 pp14
BT Advanced Communications Technology Centre
Adastral Park, Martlesham Heath, Ipswich, IP5 3RE, UK
Tel:    +44 1473 645413
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Email:  mike.nilsson at bt.com


> -----Original Message-----
> From: Frank Derks [SMTP:frank.derks at PHILIPS.COM]
> Sent: Friday, January 26, 2001 1:04 PM
> To:   ITU-SG16 at MAILBAG.INTEL.COM
> Subject:      Re: The meaning of "mode" in the H.323 Recommendation?
>
> Paul,
>
> the sections I was referring to are the following:
>
> - 6.2.8.1, 5th paragraph: "The transmitting terminal assigns each
> individual mode ..."
> - 6.2.8.1, 6th paragraph: "... audio modes ..."
> - 6.2.8.1, 7th paragraph: "... indicates a set of modes ..."
> - 6.2.8.1, 1st paragraph after the notes: "... dependencies between
> operating modes ...", "...different sets of modes ..."
> - 6.2.8.2,  3rd paragraph: "... certain symmetrical modes ...", " ...
> using a particular mode ..."
>
> Undoubtedly it appears in more places.
>
> Something else that struck as strange, was section 6.2.8.6. It mentions
> H.225.0 logical signalling procedures and
> H.225.0 logical channels. I would assume that these should read "H.245".
>
> Frank
>
>
>
>
>
> paulej at PACKETIZER.COM@SMTP at MAILBAG.INTEL.COM on 26-01-2001 11:03:30
> Please respond to paulej at PACKETIZER.COM@SMTP
> Sent by:        ITU-SG16 at MAILBAG.INTEL.COM
> To:     ITU-SG16 at MAILBAG.INTEL.COM@SMTP
> cc:
> Subject:        Re: The meaning of "mode" in the H.323 Recommendation?
> Classification:
>
> Frank,
>
> I would need to look at the particular section of text or sections :-),
> but
> I if it isn't clear, I'd agree that it should be clarified.
> Unfortunately,
> it's too late to get such text into H.323 version 4.
>
> If it is a short list of sections, post them here and I suspect folks will
> be able to get an answer to you before I get back into the office (I'm
> currently on the road).  If the list is lengthy, just send it to me and
> I'll
> look at the sections when I get a chance.  Do you think this is something
> that needs clarification in the implementers guide or something to try to
> get into v5?
>
> Paul
>
> ----- Original Message -----
> From: "Frank Derks" <frank.derks at PHILIPS.COM>
> To: <ITU-SG16 at mailbag.cps.intel.com>
> Sent: Tuesday, January 23, 2001 7:33 AM
> Subject: The meaning of "mode" in the H.323 Recommendation?
>
>
> > Paul,
> >
> > as I was reading through the latest draft of H.323v4, I came across
> something that has
> > been in the recommendation for a long time, but that I never quite
> grasped: "mode".
> > The recommendation talks about "mode" and there is a (H.245) message to
> request
> > a terminal to use a certain "mode" (requestMode), but there is no
> explanation of what
> > "mode" actually means. Shouldn't there be a definition of "mode" in the
> Definitions
> > section?
> >
> > Regards,
> >
> > Frank
> >
> > -----------------------------------------------------
> > Frank Derks                    |Tel  +31 35 6893238 |
> > Advanced Development           |Fax  +31 35 6891030 |
> > Philips Business Communications|P.O. Box 32         |
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> >                                |The Netherlands     |
> > ----------------------------------------------------|
> > E-mail: mailto:frank.derks at philips.com              |
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> > -----------------------------------------------------
> >
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