From owner-freebsd-multimedia Fri Aug 31 13: 0:22 2001 Delivered-To: freebsd-multimedia@freebsd.org Received: from quack.kfu.com (quack.kfu.com [205.178.90.194]) by hub.freebsd.org (Postfix) with ESMTP id 1F1AD37B445 for ; Fri, 31 Aug 2001 13:00:13 -0700 (PDT) Received: from morpheus.kfu.com (morpheus.kfu.com [3ffe:1200:301b:1:2d0:b7ff:fe3f:bdd0]) by quack.kfu.com (8.11.3/8.11.3) with ESMTP id f7VK07t56916 (using TLSv1/SSLv3 with cipher EDH-RSA-DES-CBC3-SHA (168 bits) verified OK) for ; Fri, 31 Aug 2001 13:00:12 -0700 (PDT) (envelope-from nsayer@medusa.kfu.com) Received: by morpheus.kfu.com (8.11.6/8.11.6) id f7VK06d00646 for freebsd-multimedia@freebsd.org; Fri, 31 Aug 2001 13:00:06 -0700 (PDT) (envelope-from nsayer) Message-Id: <200108312000.f7VK06d00646@morpheus.kfu.com> Content-Type: text/plain; charset="iso-8859-15" From: Nick Sayer To: freebsd-multimedia@freebsd.org Subject: Slow DVD? Date: Fri, 31 Aug 2001 13:00:04 -0700 X-Mailer: KMail [version 1.3] MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: owner-freebsd-multimedia@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org I have been disappointed so far with just about all the DVD playback options available, but I believe I have an explanation now. I have a relatively old DVDROM drive. The virtue of it is that it's regionless. Here's what the kernel has to say: cd1 at ahc0 bus 0 target 5 lun 0 cd1: Removable CD-ROM SCSI-2 device cd1: 20.000MB/s transfers (20.000MHz, offset 8) If someone were to "rip" a movie using a particularly naughty piece of software, it turns out that xine and vlc can both play the resulting mpg file perfectly. If someone were to use naughty versions of xine or vlc, one would find that the playback skipped a lot of frames and looked basically crappy, but the CPU is 60% idle. These two circumstances tell me that perhaps the drive itself is the bottleneck. Does anyone know of any magic sysctls I might try on cam to speed things up? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message