From owner-freebsd-current Mon May 18 13:07:40 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id NAA18886 for freebsd-current-outgoing; Mon, 18 May 1998 13:07:40 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from sos.freebsd.dk ([212.242.40.180]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id NAA18853; Mon, 18 May 1998 13:07:30 -0700 (PDT) (envelope-from sos@sos.freebsd.dk) Received: (from sos@localhost) by sos.freebsd.dk (8.8.8/8.8.8) id WAA00312; Mon, 18 May 1998 22:06:21 +0200 (CEST) (envelope-from sos) Message-Id: <199805182006.WAA00312@sos.freebsd.dk> Subject: Re: ATAPI CDDA Extraction under FreeBSD In-Reply-To: <199805181805.UAA07728@labinfo.iet.unipi.it> from Luigi Rizzo at "May 18, 98 08:05:55 pm" To: luigi@labinfo.iet.unipi.it (Luigi Rizzo) Date: Mon, 18 May 1998 22:06:21 +0200 (CEST) Cc: sos@FreeBSD.ORG, hasty@rah.star-gate.com, regnauld@deepo.prosa.dk, current@FreeBSD.ORG From: Søren Schmidt Reply-to: sos@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In reply to Luigi Rizzo who wrote: > > It should be possible, at least it seems so from testing... > > Big multi sector transfers post a problem though... > > how big is big ? is it 64K or it can be much larger ? In any case, > it should not be much of a problem given that several atapi drives can > transfer audio faster than 1x, so a small buffer should suffice. No most (if not all) disks I've seen has a max of 16 secs at once ie 8K... > (and in any case, i fail to see why one would want to grab live > digital audio data from a CD to pump it straight into the DAC of > the audio card, when there is a direct analog connection that would > consume zero cpu and zero bus bandwidth...) Exactly... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Søren Schmidt (sos@FreeBSD.org) FreeBSD Core Team Even more code to hack -- will it ever end .. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message