From owner-freebsd-hackers Thu Mar 13 0:53:35 2003 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6904D37B401 for ; Thu, 13 Mar 2003 00:53:34 -0800 (PST) Received: from mailhub.fokus.fraunhofer.de (mailhub.fokus.fraunhofer.de [193.174.154.14]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6514843F3F for ; Thu, 13 Mar 2003 00:53:33 -0800 (PST) (envelope-from brandt@fokus.fraunhofer.de) Received: from beagle (beagle [193.175.132.100]) by mailhub.fokus.fraunhofer.de (8.11.6/8.11.6) with ESMTP id h2D8rRM21554; Thu, 13 Mar 2003 09:53:27 +0100 (MET) Date: Thu, 13 Mar 2003 09:53:27 +0100 (CET) From: Harti Brandt To: Dan Nelson Cc: Yury Tarasievich , freebsd-hackers@FreeBSD.ORG Subject: Re: Are there any on-going projects on v4l porting? In-Reply-To: <20030312194736.GM34322@dan.emsphone.com> Message-ID: <20030313095141.C641@beagle.fokus.fraunhofer.de> References: <20030308015609.R680@kushnir1.kiev.ua> <3E6F74AD.3000306@grsu.by> <20030312194736.GM34322@dan.emsphone.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG 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