From owner-freebsd-multimedia@FreeBSD.ORG Fri Jul 11 09:11:17 2003 Return-Path: Delivered-To: freebsd-multimedia@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1CEB537B401 for ; Fri, 11 Jul 2003 09:11:17 -0700 (PDT) Received: from mailout11.sul.t-online.com (mailout11.sul.t-online.com [194.25.134.85]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2D9E043F93 for ; Fri, 11 Jul 2003 09:11:16 -0700 (PDT) (envelope-from Alexander@Leidinger.net) Received: from fwd07.aul.t-online.de by mailout11.sul.t-online.com with smtp id 19b0U1-0007bn-03; Fri, 11 Jul 2003 18:10:53 +0200 Received: from Andro-Beta.Leidinger.net (EY04qYZ6Qe+C0c72JkrvIsAH3UfTzdZGl2doGn8d8g1x1QFcvZ6k8Z@[80.131.119.42]) by fmrl07.sul.t-online.com with esmtp id 19b0Tk-17n7bc0; Fri, 11 Jul 2003 18:10:36 +0200 Received: from Magelan.Leidinger.net (Magelan [192.168.1.1]) h6BGAZQA024573; Fri, 11 Jul 2003 18:10:35 +0200 (CEST) (envelope-from Alexander@Leidinger.net) Received: from Magelan.Leidinger.net (netchild@localhost [127.0.0.1]) by Magelan.Leidinger.net (8.12.9/8.12.9) with SMTP id h6BGAYo7016512; Fri, 11 Jul 2003 18:10:34 +0200 (CEST) (envelope-from Alexander@Leidinger.net) Date: Fri, 11 Jul 2003 18:10:34 +0200 From: Alexander Leidinger To: Sean_Welch@alum.wofford.org Message-Id: <20030711181034.546fa93a.Alexander@Leidinger.net> In-Reply-To: <4339238.1057932704927.JavaMail.nobody@kermit.psp.pas.earthlink.net> References: <4339238.1057932704927.JavaMail.nobody@kermit.psp.pas.earthlink.net> X-Mailer: Sylpheed version 0.8.10claws (GTK+ 1.2.10; i386-portbld-freebsd5.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Seen: false X-ID: EY04qYZ6Qe+C0c72JkrvIsAH3UfTzdZGl2doGn8d8g1x1QFcvZ6k8Z@t-dialin.net cc: gurney_j@efn.org cc: multimedia@freebsd.org cc: welchsm@earthlink.net Subject: Re: BSD video capture emulation question X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Jul 2003 16:11:17 -0000 On Fri, 11 Jul 2003 07:11:42 -0500 (GMT) Sean Welch wrote: > That's a lot of acronyms -- anyone care to explain to me what > IOMMU, PIP, DTRT, and ISTM are? And what is a video sink? PIP: Picture In Picture DTRT: Do The Right Thing ISTM: It Seems That Maybe (guessed!) IOMMU: Input/Output Memory Management Unit (guessed!) video sink: a "target" which consumes video data (opposed to: video source, a "thing" which creates video data) > John-Mark, could you clarify your concept of the kernel/ > userland split for a new video API? More particularly, what > parts would be handled by the kernel and how do you envision > the userland interacting with that part? Are we talking about > creating a new device node (a la v4l) or a new way of interacting > with existing device nodes? As I understand the topic: he thinks about something like v4l/v4l2, but better (and more generic which maybe can be named video4unix...). The interaction with the device nodes is part of the userland. Bye, Alexander. -- Reboot America. http://www.Leidinger.net Alexander @ Leidinger.net GPG fingerprint = C518 BC70 E67F 143F BE91 3365 79E2 9C60 B006 3FE7