8 Jun
2006
8 Jun
'06
2:09 p.m.
I need to order a video-server PC (running on The OS), so I would like
to have your advice concerning the best graphical card to play videos in
High Definition and perfect quality on Linux. Aside from that, it should
deliver the signal in S-Video or anything else that can be carried some
tens of meters away.
Thank you.
--
Brent Frère
Private e-mail: Brent(a)BFrere.net
Postal address: 58, rue d'Esch
L-3720 Rumelange
Grand-Duchy of Luxembourg
European Union
Mobile: +352-021/29.05.98
Fax: +352-26.30.05.96
Home: +352-307.341
URL: http://BFrere.net
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8 Jun
8 Jun
2:29 p.m.
Hi Brent,
On Thu, Jun 08, 2006 at 04:09:07PM +0200, Brent Frere wrote:
I need to order a video-server PC (running on The OS),
Which kind? Does it need to be receiver for classic analog TV, DVB (-C, -T, -S)?
Or is it simply needed for streaming existing videos to some clients?
so I would like
to have your advice concerning the best graphical card to play videos in
High Definition and perfect quality on Linux.
Shouldn't about any graphics card be able to do so? Ok, depending on the
card, you'll get different signal qualities, especially high-res VGA can
be a problem. Therefore the question: which kind of device will be used
for visualization, CRT, TFT, Beamer, ...?
For good quality VGA signals, Matrox used to be a reference, from my
personal experience cheap NVidia-based cards won't do.
Aside from that, it should
deliver the signal in S-Video or anything else that can be carried some
tens of meters away.
... or stream via vlc or somesuch via network? Again, depends on the needs.
Long VGA cables exist, but must also be of good quality, so streaming via
network to another box can be a real alternative (remember Tux-Industries,
we used one "beamer-box" with several instances of X11, each one with a
VNC connection to one of the desktops, and switched around - saved a lot
on video hardware troubles).
Pierre may have some knowledge to share regarding vlc, some people at
the CRP have played with DVB etc., so if you can be more specific...
Greetings, Eric
3:09 p.m.
Source is local files or local DVDs. Destination is professional cinema
beamer.
"Long distance" is the distance between the computer room and the
projection room, ~10 meters, no more.
No point to use a streaming technology on LAN: the idea is to have a
dedicated video server aside the beamer (but maybe not _just_ aside
because projection rooms are often crowded with argentic films related
hardware.
I think it is important to have a card that is well supported from Linux
(3D ?) so that it would be possible to deliver a 1600x1200 image at the
rate of 25 frames a second without glitches during a whole film
projection. This is for the New Ariston Cinema (Esch) that re-opens on
the 22 june after having been completely refurbished, so the screen is
~25 meters diagonal. We don't speak about my livingroom here ! :-)
I though N-Vidia would be ok. Are Matrox well supported ?
Thank you for your help.
Eric Dondelinger wrote:
Hi Brent,
On Thu, Jun 08, 2006 at 04:09:07PM +0200, Brent Frere wrote:
--
Brent Frère
Private e-mail: Brent(a)BFrere.net
Postal address: 58, rue d'Esch
L-3720 Rumelange
Grand-Duchy of Luxembourg
European Union
Mobile: +352-021/29.05.98
Fax: +352-26.30.05.96
Home: +352-307.341
URL: http://BFrere.net
This e-mail signature can be checked if you have the CaCERT certificate installed.
Check http://www.CaCERT.org for details.
I need to order a video-server PC (running on The
OS),
Which kind? Does it need to be receiver for classic analog TV, DVB (-C, -T, -S)?
Or is it simply needed for streaming existing videos to some clients?
so I would like
to have your advice concerning the best graphical card to play videos in
High Definition and perfect quality on Linux.
Shouldn't about any graphics card be able to do so? Ok, depending on the
card, you'll get different signal qualities, especially high-res VGA can
be a problem. Therefore the question: which kind of device will be used
for visualization, CRT, TFT, Beamer, ...?
For good quality VGA signals, Matrox used to be a reference, from my
personal experience cheap NVidia-based cards won't do.
Aside from that, it should
deliver the signal in S-Video or anything else that can be carried some
tens of meters away.
... or stream via vlc or somesuch via network? Again, depends on the needs.
Long VGA cables exist, but must also be of good quality, so streaming via
network to another box can be a real alternative (remember Tux-Industries,
we used one "beamer-box" with several instances of X11, each one with a
VNC connection to one of the desktops, and switched around - saved a lot
on video hardware troubles).
Pierre may have some knowledge to share regarding vlc, some people at
the CRP have played with DVB etc., so if you can be more specific...
Greetings, Eric
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9 Jun
9 Jun
7:15 a.m.
Hi Brent,
On Thu, Jun 08, 2006 at 05:09:15PM +0200, Brent Frere wrote:
Source is local files or local DVDs. Destination is
professional cinema
beamer.
Ok, that's making things much simpler.
"Long distance" is the distance between the
computer room and the
projection room, ~10 meters, no more.
Ok. At the CRP we've used 10 or 15m VGA cables with success, but IIRC
the resolutions used were not quite as high as what you've specified
here (I did use 1400x1050 though, the problem there being the VGA
signal quality on my notebook).
I don't yet know sources for pro-quality long-distance VGA cables,
I'll ask our "service technique" where they got theirs.
No point to use a streaming technology on LAN: the
idea is to have a
dedicated video server aside the beamer (but maybe not _just_ aside
because projection rooms are often crowded with argentic films related
hardware.
Ok.
Does that beamer by any chance accept DVI (or whatever the digital output
is called that's used for TFTs)? If so, you could avoid VGA-related
problems. I only don't know if such long cables exist for DVI.
I think it is important to have a card that is well
supported from Linux
(3D ?)
Nope, for pure video display, you only need good 2D (which is often
"forgotten" these days).
so that it would be possible to deliver a 1600x1200
image at the
rate of 25 frames a second without glitches during a whole film
projection.
... most CPUs today should be able to properly decode stuff quickly
enough to avoid glitches. I've only read about MPEG-1 or MPEG-2
hardware-supported decoding, so I don't know about MPEG-4 or such.
This is for the New Ariston Cinema (Esch) that
re-opens on
the 22 june after having been completely refurbished, so the screen is
~25 meters diagonal. We don't speak about my livingroom here ! :-)
:-) There aren't many people with a real cinema at home, indeed ;-)
I though N-Vidia would be ok. Are Matrox well
supported ?
IIRC the classic Matrox cards had good 2D-support in XFree.
The NVidia drivers are of good quality, the trouble there would be
to find a good card with acceptable VGA signal quality.
Can't give you much more input there, not enough experience with
the subject...
Greetings, Eric
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3 comments
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Brent Frere -
Eric Dondelinger