From owner-freebsd-arch Mon Jun 24 14:45:25 2002 Delivered-To: freebsd-arch@freebsd.org Received: from mta03-svc.ntlworld.com (mta03-svc.ntlworld.com [62.253.162.43]) by hub.freebsd.org (Postfix) with ESMTP id 54AE637B400 for ; Mon, 24 Jun 2002 14:45:19 -0700 (PDT) Received: from ntlworld.com ([213.104.146.54]) by mta03-svc.ntlworld.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with ESMTP id <20020624214518.XGZY295.mta03-svc.ntlworld.com@ntlworld.com>; Mon, 24 Jun 2002 22:45:18 +0100 Message-ID: <3D17925C.5060106@ntlworld.com> Date: Mon, 24 Jun 2002 22:42:52 +0100 From: Antony T Curtis User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.0.0) Gecko/20020611 X-Accept-Language: en-gb, en-us, en MIME-Version: 1.0 To: Harti Brandt Cc: freebsd-arch@freebsd.org Subject: Re: video capture References: <20020624172059.Q367-100000@beagle.fokus.gmd.de> Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Harti Brandt wrote: > On Mon, 24 Jun 2002, Antony T Curtis wrote: > > ATC>Is there an analogous specification for FreeBSD as Linux's V4L? > ATC> > ATC>Is there interest (except of myself) for such a beast? > > There is no such thing. It would be nice to have one (but not so broken by > design as V4L). I'm open to suggestions.... In a past life, I messed about with MMOS/2 (OS/2's multimedia subsystem) but that doesn't qualify me for such a task. As to how such a thing be implemented - does it sound reasonable to create a CAM-like abstraction of which all the video devices may be connected to? It would be great to have something in place which is not so device specific. > ATC>I'm messing about writing a KLD for a OV511 based USB capture device and > ATC>it would be nice if there was some generic interface for all such > ATC>devices. All I can see in STABLE is the bktr device for capturing. > > The bktr more or less works. There are a number of issues, where the chip > documentation seems to be wrong, but you can easily get 25 fps without > much cpu usage. I have two old video capture boards which are not in use... One is a "Black Widow" branded ISA board (which I have some DOS source code to drive it) and the other is a PCI board with a "Zoran" chip on it. -- Antony T Curtis BSc Unix Analyst Programmer http://homepage.ntlworld.com/antony.t.curtis/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message