RE: DTV and ATSC URL proposal from GI

From: Koenen, R.H. (R.H.Koenen@research.kpn.com)
Date: Sat, Nov 07 1998


Date: Sat, 07 Nov 1998 15:02:14 +0100
From: "Koenen, R.H." <R.H.Koenen@research.kpn.com>
To: "'Jan van der Meer'" <jan.vandermeer@ehv.ce.philips.com>
Cc: Henning Timcke <henning.timcke@werft22.com>, "'Peterka, Petr (SD-EX)'" <PPeterka@gi.com>, "'www-tv@w3.org'" <www-tv@w3.org>
Message-id: <802140B1D018D2118EB000A02461E5B67A6759@ntl11.research.kpn.com>
Subject: RE: DTV and ATSC URL proposal from GI

Jan, 

you are fully right of course. What I meant to say is that
MPEG-4 will specify a file format that has added functionality,
in the sense that it is much more than a stored representation
of the elementary streams. The 'MPEG file' that was referred to
was not an MPEG standardized format - that was my message.

Rob

----------------
Rob Koenen, Multimedia Technology Group, KPN Research
PO Box 421, 2260 AK  Leidschendam The Netherlands
tel +31 70 332 5310    fax  +31 70 332 5567
GSM +31 653 815 686   


> -----Original Message-----
> From: Jan van der Meer [mailto:jan.vandermeer@ehv.ce.philips.com]
> Sent: Friday, November 06, 1998 3:36 PM
> To: Koenen, R.H.
> Cc: Henning Timcke; 'Peterka, Petr (SD-EX)'; 'www-tv@w3.org'
> Subject: RE: DTV and ATSC URL proposal from GI
> 
> 
> Rob,
> 
> Perhaps we are speaking different languages (we generally 
> don't), but the 
> way I read your statement, I have to disagree strongly. 
> MPEG-1 and MPEG-2 
> are fully self-contained and media independent streams that can be 
> transmitted in real time, but which can also be stored in 
> memory as one big 
> file with its own format, e.g. for playback at any time. I 
> know MPEG-4 also 
> has a file format, probably with a lot more functionality, 
> but still you 
> can consider MPEG-1 and MPEG-2 streams as being a simple file 
> format. Which 
> may not meet all MPEG-4 requirements of course.
> 
> Kind regards,
> 
> Jan van der Meer
> 
> ----------
> From: 	Koenen, R.H.[SMTP:R.H.Koenen@research.kpn.com]
> Sent: 	06 November 1998 10:28
> To: 	Henning Timcke; 'Peterka, Petr (SD-EX)'; 'www-tv@w3.org'
> Subject: 	RE: DTV and ATSC URL proposal from GI
> 
> > From: Henning Timcke [mailto:henning.timcke@werft22.com]
> > MPEG has some content relevant informations: at the end of 
> the file !
> 
> MPEG does not specify file formats for MPEG-1 and MPEG-2.
> There will be a file format for MPEG-4 that does this right.
> 
> Rob Koenen
> 
>