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[mpeg2] Re: Driver project: a new 4-channel MPEG decoder card
- To: LinuxTV MPEG-2 Mailing List <mpeg2@linuxtv.org>
- Subject: [mpeg2] Re: Driver project: a new 4-channel MPEG decoder card
- From: Allan Jacobsen <allan@image.dk>
- Date: Mon, 14 May 2001 23:40:51 +0200
Warren Young wrote:
>
> Allan Jacobsen wrote:
> >
> > Warren Young wrote:
> > >
> > > I said that Sigma already has a 1-channel decoder with a Linux driver.
> >
> > Well, the Sigma driver for their NetStream2000 card is
> > not open source, and they will not release it outside
> > their company.
>
> The _driver_ is open source. Only the user-mode library necessary to
> completely talk to the driver is closed. I don't know how much of a
> problem that is. I suppose the user-mode side could have critical
> things like microcode in it... The user-mode library almost certainly
> also has things like the CSS decryptor, but my projects don't need
> De-CSS functionality.
OK, you are right, but the driver without the library is completely
useless.
It does not contain anything about: bitrate, resolution, Mpeg1/2 data,
program stream/transport stream, audio ac3/mpeg 2, audio bitrate,
audio sampling freq. etc.....
--
MVH / Best Regards
Allan Jacobsen, AJ17-DK
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