From: Roger Oberholtzer <roger@opq.se>
To: "Charlie X. Liu" <charlie@sensoray.com>
Cc: video4linux-list@redhat.com
Subject: RE: SUGGESTION FOR A Linux based Card
Date: Fri, 09 Jul 2010 23:54:48 +0200 [thread overview]
Message-ID: <1278712488.24682.6.camel@manta.site> (raw)
In-Reply-To: <000001cb1f84$0feb8af0$2fc2a0d0$@com>
On Fri, 2010-07-09 at 09:30 -0700, Charlie X. Liu wrote:
> Is it a BT878-based or SAA7134-based? If you are looking for a better quality capture card, considering a SAA7134-based is very important, since BT878 is too old and SAA713x is a newer generation one that uses more advanced technologies including using the adaptive comb filter and adaptive anti-alias filtering techniques which make big difference on image/video quality.
They have a few different cards. BT878 is not lower quality (in my
opinion when using these cards in systems to capture images for
high-speed image processing). The difference is that it does no
compression in hardware. But I thought the original poster mentioned
using ffmpeg.
We also use a 4-channel card that compresses to jpeg-2000 in hardware.
Great linux support.
It is a mistake to confuse age with quality. In this area, new sometimes
means cheaper to make, or additional features (like compression) that do
not effect the basic image capture quality.
YMMV.
--
Roger Oberholtzer
Ramböll RST/OPQ
Ramböll Sverige AB
Krukmakargatan 21
P.O. Box 17009
SE-104 62 Stockholm, Sweden
Office: Int +46 10-615 60 20
Mobile: Int +46 70-815 1696
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next prev parent reply other threads:[~2010-07-09 21:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-08 13:13 SUGGESTION FOR A Linux based Card Akhilesh Soni
2010-07-08 19:37 ` Charlie X. Liu
2010-07-09 6:26 ` Roger Oberholtzer
2010-07-09 16:30 ` Charlie X. Liu
2010-07-09 21:54 ` Roger Oberholtzer [this message]
2010-07-09 23:05 ` Charlie X. Liu
2010-07-11 16:53 ` Daniel Glöckner
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