List: linux-video
Subject: Linux DVD
From: Marshall Goldberg < mgoldberg () sdesigns ! com>
Date: 1999-02-25 1:58:46
We still hope to develop Linux drivers this Spring or Summer for one of
our MPEG/DVD decoder boards. No promises or announcements yet, but we're
certainly going to give it a try. I've been lurking on this list for a
while to start understanding what we need to do to support the Linux
community.
Unfortunately, because of the CSS, Macrovision and Regional encryption
schemes, and the Dolby Digital and other licenses, we cannot publish the
source code for DVD playback. We've invested heavily in DVD, and we
don't want Hollywood to cut back on new releases because of their fears
of piracy.
Besides that, I've got a few dozen titles at home now, plus the Dolby
Digital surround set-up, and the player, and I really don't want to see
DVD turn into Betamax.
So, while we can't help anybody crack DVD, we hope to come up with a
really good driver with an API that will let Linux programmers create
useful applications which can control changers, run video walls, and do
other really cool stuff with DVD and Linux. It's possible that we'll
provide only the API and driver, and let the Linux community develop the
DVD player applications.
Marshall Goldberg
Sigma Designs, Inc.
mgoldberg@nospam-sigmadesigns.com
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List: linux-video
Subject: Re: Linux DVD
From: "D. Huseby" <huseby () u ! washington ! edu>
Date: 1999-02-25 22:51:50
On Thu, 25 Feb 1999 jei@zor.hut.fi wrote
> IMHO, desktop video-authoring, editing and encoding into MPEG-2
> is the next *big* thing for PCs. Lets try to bug Intel for resources
> & sponsorship for these. :-)
>
I may have an MPEG2 capture card driver in the works. There have been
proposals at my work of doing an open source MPEG2 driver for the Vision
Tech or Video Tech (I can't remember exactly) MPEG2 capture card. The
manufacturer distributes the SDK for Solaris and Windows with the card. I
think it costs around $1500US which isn't too bad for a full D1 (broadcast
quality) card. If the project gets approved then it should get rolling
sometime before this fall. So not only will I be finishing up the
Broadway driver so that Linux finaly has realtime MPEG1 but I may be
working on MPEG2 for Linux also in the not to distant future. This is
just an FYI.
Dave
LinuxBroadway Project
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List: linux-video
Subject: Re: Linux DVD
From: sticke_m < sticke_m () informatik ! fh-hamburg ! de>
Date: 1999-03-06 1:29:58
I do have an old RealMagic-I Playback board (ISA) from Sigma Designs.
How does Sigma Designs feels about giving some information on
the programming of this board away. I don't need source or any internal
things, only where the board is mapped in the ISA io-area and how
the registers of the chips that are mapped into the ISA-area can
be accessed and how they comunicate and how the MPEG stream work.
Thanks for the interest to support the Linux community.
With special thanks Michael.
PS: May meet at the CeBit in Hanover.
-------------------------------------------------------------------------
Michael Stickel
Student of Software science at FH-Hamburg (Germany)
email: michael@cubic.org
sticke_m@informatik.fh-hamburg.de
On Wed, 24 Feb 1999, Marshall Goldberg wrote:
> We still hope to develop Linux drivers this Spring or Summer for one of
> our MPEG/DVD decoder boards. No promises or announcements yet, but we're
> certainly going to give it a try. I've been lurking on this list for a
> while to start understanding what we need to do to support the Linux
> community.
>
> Unfortunately, because of the CSS, Macrovision and Regional encryption
> schemes, and the Dolby Digital and other licenses, we cannot publish the
> source code for DVD playback. We've invested heavily in DVD, and we
> don't want Hollywood to cut back on new releases because of their fears
> of piracy.
>
> Besides that, I've got a few dozen titles at home now, plus the Dolby
> Digital surround set-up, and the player, and I really don't want to see
> DVD turn into Betamax.
>
> So, while we can't help anybody crack DVD, we hope to come up with a
> really good driver with an API that will let Linux programmers create
> useful applications which can control changers, run video walls, and do
> other really cool stuff with DVD and Linux. It's possible that we'll
> provide only the API and driver, and let the Linux community develop the
> DVD player applications.
>
> Marshall Goldberg
> Sigma Designs, Inc.
> mgoldberg@nospam-sigmadesigns.com
>
>
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> To unsubscribe: mail video4linux-list-request@redhat.com with
> "unsubscribe" as the Subject.
>
>
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List: linux-video
Subject: Re: linux dvd
From: Nathan <laredo () gnu ! org>
Date: 1999-04-08 20:18:28
> I am still trying to get the guys at openprojexts.net to give me space,
> for the linuxdvd project. I plan on extending my project to include other
> chipsets, in an effort to pool resources and come to consensus on (if any)
> changes to V4L2, players, libs, etc.
Fyi, guys, i've already been decoding unencrypted dvds in linux for over
half a year, both in software and in hardware. The mpeg2 decoder
hardware I'm using comes from a company called stradis (www.stradis.com),
but it's priced for the professional market and they don't want to
sell singles (priced at about $1000 for a single), basically because
they don't want to get into the business of end user support. It's
designed for studio use basically.
As for dvd encryption, I'm working on a deal with matsushita currently.
According to the terms of the CSS licence agreement, the data path from
the dvdrom to the decoder must be secure in that the data cannot be
intercepted in encrypted or unencrypted form. This complicates matters
somewhat for a system like linux. It scares the movie studios to no end.
> open source. This is, of course, all just if someone wanted to
> *hypothetically* reverse engineer the format.
This project is ongoing, I would imagine the person who does this will
make every effort towards a wide open source distribution from outside
the united states. I cannot say who is working on this, but just that
it is being actively persued. There are reports of success by some
asian hackers. There are many people in the US working towards this end.
I must also mention that the CSS licence is free, but the process to
obtain it is rather lengthy. The DVD specification is $5k.
There is some useful information in DVD Demystified, but nothing
especially enlightening. The DVD that is included with that book
is unencrypted, as is the Clinton Testimony DVD. Both of these
play perfectly on my software and hardware decoder in linux.
-- Nathan Laredo
laredo@gnu.org
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