[opendtv] Re: re-encoding

  • From: <tjharvey@xxxxxxx>
  • To: <opendtv@xxxxxxxxxxxxx>
  • Date: Sat, 14 May 2005 20:48:42 -0400

Snell and Wilcox demonstrated 'Mole' in the late '90's which did just this.

Have a look at the URL:

http://www.broadcastpapers.com/sigdis/Snell&WilcoxMoleTechnology08.htm

The idea was that the least two significant bits in the serial digital SMPTE 
259M interface would carry decode information which would subsequently be used 
in the next re-encode.

It seems to have died....

Terry Harvey
> 
> From: Doug McDonald <mcdonald@xxxxxxxxxxxx>
> Date: 2005/05/13 Fri PM 05:52:03 EDT
> To: opendtv@xxxxxxxxxxxxx
> Subject: [opendtv] re-encoding
> 
> Has anybody designed, or tried to design, an MPEG
> encoder that, knowing that it is receiving a signal
> (be it digital or analog) that was previously MPEG
> encoded (at the format sent to it), tries to replicate
> the exact previous encoding, so that succeeding generations
> will remain lossless (compared to the first encoded generation)?
> 
> This would be a great boon to the consumer .... if it
> will run on say a Pentium 4 or Pentium 5. Especially
> thanks to a certain district court.
> 
> Doug McDonald
> 
> 
>  
>  
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