[vdr] Re: Proposal: cutting out advertising automatically

["Rene Bartsch" <vdr@bartschnet.de>]

----- Original Message -----
From: "Matthias Schniedermeyer" <ms@citd.de>
To: <vdr@linuxtv.org>
Sent: Tuesday, October 22, 2002 1:37 PM
Subject: [vdr] Re: Proposal: cutting out advertising automatically


> On Tue, Oct 22, 2002 at 12:49:52PM +0200, Christian Pesch wrote:
> > Matthias Schniedermeyer wrote:
> >
> > >I-Frame
> > >B-Frame
> > >P-Frame [..]
> > >
> > I think, you've missed, that the frame types do no
> > matter: At the end, they produce 25 images per second.
> > And then you might compare them to find out, if two
> > images nearly look the same.
>
> But for this you would have to "decode" the frames to pictures.
>
> For "only" decoding an mpeg-stream to pictures you need about the power
> of an PII/III 500Mhz to do that in real-time. Now you have to add the
> time/power you need to analyze the picture.
>
> OK. Decoding could be done by the DVB-S card but i don't think that you
> can watch via TV-Set and at the same time DMA the picture into the
> memory of the computer.

KVDR does this. It copies from the V4L-device into the graphic-card and it's
also running deinterlacers.
But the finger-printing will need a lot of horsepowers and well force the
broadcasters to PIP-advertisement ...

Rene



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