From owner-freebsd-multimedia@FreeBSD.ORG Fri Apr 8 11:21:27 2005 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 77F8316A4CE for ; Fri, 8 Apr 2005 11:21:27 +0000 (GMT) Received: from sohara.org (sohara.org [192.220.64.179]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5183943D48 for ; Fri, 8 Apr 2005 11:21:27 +0000 (GMT) (envelope-from steve@sohara.org) Received: (qmail 36328 invoked by uid 16563); 8 Apr 2005 11:21:26 -0000 Received: from unknown (HELO SOHARA) ([217.12.14.240]) (envelope-sender ) by 192.220.64.179 (qmail-ldap-1.03) with SMTP for ; 8 Apr 2005 11:21:26 -0000 Date: Fri, 8 Apr 2005 12:23:19 +0100 From: Steve O'Hara-Smith To: Tim Aslat Message-Id: <20050408122319.7caff82a.steve@sohara.org> In-Reply-To: <20050408150804.17bd5411@bofh.spyderweb.com.au> References: <20050408140100.1d4fee0e@bofh.spyderweb.com.au> <20050408052607.GC7739@puff.jakemsr.gom> <20050408150804.17bd5411@bofh.spyderweb.com.au> X-Mailer: Sylpheed version 1.9.6 (GTK+ 2.4.1; i586-pc-interix3) X-Face: %]+HVL}K`P8>+8ZcY-WGHP6j@&mxMo9JH6_WdgIgUGH)JX/usO0%jy7T~IVgqjumD^OBqX,Kv^-GM6mlw(fI^$"QRKyZ$?xx/ Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit cc: freebsd-multimedia@freebsd.org Subject: Re: DVD burning 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, 08 Apr 2005 11:21:27 -0000 On Fri, 8 Apr 2005 15:08:04 +0930 Tim Aslat wrote: > I'm thinking that I might be able to pipe the stream straight to the > recording process, but I'm worried about "buffer underrun" errors > causing problems with this. Piping into growisofs should work if the data is generated at least as fast as the minimum supported burn speed of the drive. If the rate varies too much then piping it through buffer (in the ports) should smooth things out nicely (the original use of buffer was to keep QIC02 tape drives streaming on backups). If the data rate is too slow on average for the burn process then you will need to spool it through a disc buffer. I'm pretty sure that making a DVD-Video compliant disc on the fly is not going to work - if you do find a way then please post details. -- C:>WIN | Directable Mirror Arrays The computer obeys and wins. | A better way to focus the sun You lose and Bill collects. | licences available see | http://www.sohara.org/