Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 13 Mar 2003 09:53:27 +0100 (CET)
From:      Harti Brandt <brandt@fokus.fraunhofer.de>
To:        Dan Nelson <dnelson@allantgroup.com>
Cc:        Yury Tarasievich <grog@grsu.by>, freebsd-hackers@FreeBSD.ORG
Subject:   Re: Are there any on-going projects on v4l porting?
Message-ID:  <20030313095141.C641@beagle.fokus.fraunhofer.de>
In-Reply-To: <20030312194736.GM34322@dan.emsphone.com>
References:  <20030308015609.R680@kushnir1.kiev.ua> <3E6F74AD.3000306@grsu.by> <20030312194736.GM34322@dan.emsphone.com>

next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, 12 Mar 2003, Dan Nelson wrote:

DN>In the last episode (Mar 12), Yury Tarasievich said:
DN>> At http://freebsddvb.narod.ru, there exists an adequately up-to-date
DN>> port of linux DVB drivers, seemingly supporting DVB adapters up to
DN>> rev.1.5.
DN>>
DN>> Regarding porting of V4L. I may be utterly wrong, but isn't the whole
DN>> V4L/V4L2/V4L2-whatever thing rather made ad hoc, not really designed?
DN>> Could something reincarnating BeOS (or even OS/2) multimedia
DN>> subsystem be better?
DN>
DN>I like the idea of putting this into the Xfree86 drivers and using the
DN>XVideo extension to drive everything.  that doesn't require kernel
DN>mods.  It does mean that you need to start X up to capture video,
DN>though.

The problem with this is probably the number of context switches and
copies or IPC you need to get a frame. With > 25 fps this is a problem.

harti
-- 
harti brandt,
http://www.fokus.fraunhofer.de/research/cc/cats/employees/hartmut.brandt/private
brandt@fokus.fraunhofer.de, harti@freebsd.org

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030313095141.C641>