[opendtv] Re: Digital Tracking to Protect On-Demand TV
- From: "Kon Wilms" <kon@xxxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Wed, 9 Nov 2005 19:20:51 -0500
They could put a pre-ingest box at each MSO to watermark the content as
it is delivered. But it would have to be cheap, and process the files
pretty rapidly at that.
So that leads me to believe that such a system would use a relatively
simplistic watermarking algorithm. I would be curious to see how it
fares in terms of retaining the watermark when the video is rotated 3
degrees, cropped, run through some color-space filters, downrezzed and
re-encoded at a low bitrate. That is the real test, and I notice that no
content watermarking company ever releases data on how their
watermarking fares against simple video manipulation tricks. Security
through obscurity, I guess.
Once again this is a doom and gloom conditional access scenario
overshadowed by the ever-recurring fact that the average consumer just
doesn't care to copy content.
Cheers
Kon
> Since TVN uses satellite pitcher/catcher systems to distribute all of the
> VOD content to all MSOs at once, I don't quite understand how they would
> watermark content individually for eahc MSO. Uplink time isn't cheap
and it
> doesn't seem like it would make economic sense to spend money on a current
> non-problem.
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