From owner-freebsd-multimedia@FreeBSD.ORG Wed Oct 22 04:22:35 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 F375816A4B3 for ; Wed, 22 Oct 2003 04:22:34 -0700 (PDT) Received: from mail1.panix.com (mail1.panix.com [166.84.1.72]) by mx1.FreeBSD.org (Postfix) with ESMTP id C65B343FD7 for ; Wed, 22 Oct 2003 04:22:33 -0700 (PDT) (envelope-from stanb@panix.com) Received: from panix.com (brillig.panix.com [166.84.1.76]) by mail1.panix.com (Postfix) with ESMTP id 20D5F4886B for ; Wed, 22 Oct 2003 07:22:33 -0400 (EDT) Received: from teddy.fas.com (pcp01010374pcs.mplsnt01.sc.comcast.net [68.58.176.69]) by panix.com (Postfix) with ESMTP id DE87D2AA48 for ; Wed, 22 Oct 2003 07:22:32 -0400 (EDT) Received: from stan by teddy.fas.com with local (Exim 3.36 #1 (Debian)) id 1ACH4S-0003Dd-00 for ; Wed, 22 Oct 2003 07:22:32 -0400 Date: Wed, 22 Oct 2003 07:22:32 -0400 From: stan To: freebsd-multimedia@freebsd.org Message-ID: <20031022112232.GA12252@teddy.fas.com> Mail-Followup-To: freebsd-multimedia@freebsd.org References: <20031021193549.GC21626@teddy.fas.com> <20031022074854.0aae52e3.steve@sohara.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20031022074854.0aae52e3.steve@sohara.org> X-Editor: gVim X-Operating-System: Debian GNU/Linux X-Kernel-Version: 2.4.21 X-Uptime: 07:18:30 up 69 days, 16 min, 2 users, load average: 0.10, 0.05, 0.01 User-Agent: Mutt/1.5.4i Sender: Stan Brown Subject: Re: FW: still image capture from video stream 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: Wed, 22 Oct 2003 11:22:35 -0000 On Wed, Oct 22, 2003 at 07:48:54AM +0200, Steve O'Hara-Smith wrote: > On Tue, 21 Oct 2003 15:35:49 -0400 > stan wrote: > > S> I'm thinking I can do this with a video capture borad, right? Which > S> ones are well supported under FreeBSD? I don't need ultra high > > Almost any BT8[47][89] based card, and almost nothing else. > > There's a very simple program to capture a jpeg from the bktr > interface called bktr2jpeg that should do the job - a search should find > the code quickly enough (it's a single C file very simple code, the > meteor man page has enough information to rewrite it). Thanks, that sounds usefule. I'll search for it. > > You could also set ffmpeg to run at 4 frames per second and emit > an MJPEG, AVI or MPEG stream. Did I mention that there were 4 different cameras? I'm either goging to have to use 4 cards, or something like the Inpact series of cards. Is switiching between the sources supported? How quick can U switch? > > S> resolutin, as a matter of fact, gien the number of images that I'll be > S> accumulating (4/per second * 60 seconds * 60 minutes * 24 hours * > S> number of days I need to keep) small image size is very important. > > You can set that down to quarter resolution (160x120 for NTSC). That will help. > > S> So, how about some pointers to docs on this? And some advice on > S> hardware would be welcome also. > > man bktr > man meteor > Thanks for the feedback! -- "They that would give up essential liberty for temporary safety deserve neither liberty nor safety." -- Benjamin Franklin