FORMAL METHODS IN MULTIMEDIA SYNCHRONIZATION (SUMMARY of RESPONSES)

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2 total messages Started by Ajit K. Jena Thu, 17 Dec 1992 09:38

#410

Author: Ajit K. Jena
Date: Thu, 17 Dec 1992 09:38

59 lines
2674 bytes

HI,

The response to my query on MULTIMEDIA SYNCH was very poor. The number
of people interested in the summary far exceeded the number of responses
Anyway, here is the summary of whatever little I got.

--ajit

-------------------------------------SUMMARY------------------------------
Dan Frankowski (dfrankow@cs.umn.edu) writes :

>Delay Jitter Control Scheme for Packet-Switching Internetworks,
>D. Ferrari, Computer Communications, Vol. 15, No. 6, July/August 1992,
>pages 367-373.

>Meta-Scheduling for Distributed Continuous Meda, D. Anderson,
>Report No. UCB/CSD 90/599, October 1990, Computer Science Division
>(EECS), University of California, Berkeley, CA.

My Comments :

The above two are very good schemes for controlling real-time
packet delay and jitter. But they do not deal with MULTIMEDIA 
SYNCHRONIZATION at a process interaction under a FORMAL SEMANTIC 
model.

Scott R. Swix (swix@prism.gatech.edu) writes :

>Try to obtain a copy of the IBM OS/2 MMPM/2 (Multimedia Presentation 
>Manager/2) documentation for programmers.  MMPM includes quite a bit
>of synchronization support, based upon the current industry methods 
>such as master/slave devices, pre-roll (deterministic and non-deterministic)
>etc.  
           
>I also recommend you try to find information about the VideoMedia V-LAN
>system, which provides even more complex and powerful synchronization
>functions.

My Comments :

I dont have access to these. Can anybody please give me any pointers
to its availability ?

Frank Dawson (FDAWSON@DALHQIC2.VNET.IBM.COM) says :

>If you haven't yet, you may want to look at the HyTime international standard.
>You can get a copy from your national standards body representatives.  It is
>numbered ISO 10744-1992.

My Comments :

Have not yet received the above document. Cant comment on its usefulness.

-------------------------------------SUMMARY END------------------------------
-- 
------------------------------------------------------------------------------
Ajit K. Jena                                 Email: ajit@gateway.iitb.ernet.in
Software Engineer                            Voice: +91-22-5783177
Computer Centre                                     +91-22-5782545 (x 2750)

Re: FORMAL METHODS IN MULTIMEDIA SYNCHRONIZATION (SUMMARY of RESPONSES)

#413

Author: Max Elliot
Date: Fri, 18 Dec 1992 00:47

16 lines
1204 bytes

From article <1992Dec17.093853.20398@iitb.ernet.in>, by ajit@iitb.ernet.in (Ajit K. Jena):
> HI,
> 
> The response to my query on MULTIMEDIA SYNCH was very poor. The number
> of people interested in the summary far exceeded the number of responses
> Anyway, here is the summary of whatever little I got.
> 
> --ajit

  Someone responded 'HyTime' and I concur. If you are interested in a 
  high level semantic description of synchronous media, HyTime is your
  document. I don't have a copy any more but I'm sure it is out there
  on an ftp site. It's an ISO standard associated loosely with SGML so
  if you know where to find SGML docs, you'll probably find HyTime as
  well.
-Max

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