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RE: Adaptation field use in ULE / MPG2-TS specification
There
is no limitations agreed, But when there is a time slot to push off your data
into the traffic bust, will you be waiting for more sections to get packed(
say you have only one icmp message right now with 64 bytes) or
you just push the section so far you have in hand.
Otherwise, you have some timer for which you wait for
sections and push the traffic into bust.
Though
it is more of implemenation, i believe there is no standard, how to do section
packing as such.
Best
Regards,
William.
NOTE: all sections are for a
particular/single PID.
There is no limitations on the number of sectinos in each MPG for MPE
either. An implementation may of course limit this.
--Tor
"Marie-Jose Montpetit"
<mariejose.montpetit@verizon.net>
Sent by: owner-ip-dvb@erg.abdn.ac.uk
15.04.2004 22:25
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Subject
| Re: Adaptation field
use in ULE / MPG2-TS specification |
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We used section packing for MPE since it would have not been
fair... However
ULE had not limitations in the number of segments we could
pack.
Marie-Jose
----- Original Message -----
From: "Patrick
Cipiere" <Patrick.Cipiere@udcast.com>
To:
<ip-dvb@erg.abdn.ac.uk>
Sent: Thursday, April 15, 2004 3:24
PM
Subject: Re: Adaptation field use in ULE / MPG2-TS
specification
> Marie-Jose said
> ----------
> So I
do believe we could use ULE in RCS. Actually in a recent study
>
sponsored by ESA we showed that for traffic with a lot of ACK bursts
>
(http: for example) ULE was very efficient because of it's packing
>
capability.
> ----------
>
> Section packing is not specific
to ULE.
> It is a feature shared by the mpeg2 layer: thanks to the PUSI
bit,
> and the section layer: thanks to the embedded length included in
the
> section header.
> It is up to the encapsulator do decide
doing or not section packing.
> Section packing can be done with any
kind of section, and works fine
> with MPE.
>
>
Patrick.
> --
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