From owner-freebsd-hackers Thu Apr 17 19:56:55 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id TAA27244 for hackers-outgoing; Thu, 17 Apr 1997 19:56:55 -0700 (PDT) Received: from genesis.atrad.adelaide.edu.au (genesis.atrad.adelaide.edu.au [129.127.96.120]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id TAA27239 for ; Thu, 17 Apr 1997 19:56:52 -0700 (PDT) Received: (from msmith@localhost) by genesis.atrad.adelaide.edu.au (8.8.5/8.7.3) id MAA21055; Fri, 18 Apr 1997 12:25:42 +0930 (CST) From: Michael Smith Message-Id: <199704180255.MAA21055@genesis.atrad.adelaide.edu.au> Subject: Re: video capture driver interface to file system? In-Reply-To: <199704172335.QAA02492@rah.star-gate.com> from Amancio Hasty at "Apr 17, 97 04:35:04 pm" To: hasty@rah.star-gate.com (Amancio Hasty) Date: Fri, 18 Apr 1997 12:25:42 +0930 (CST) Cc: terry@lambert.org, freebsd-hackers@freebsd.org X-Mailer: ELM [version 2.4ME+ PL28 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Amancio Hasty stands accused of saying: > > If you guys are still interested in technical stuff. We need a very > fast mechanism to store images to disk. Suggestions? >From where? ie. where is the source of the data? A device driver, or an application? > fxtv is a nice multimedia app which basically turns your PC to a TV. If you want to use files in a filesystem, write() is pretty good 8) If that's too slow, try using a disk partition (ie. write a userspace filesystem with just the primitives you need). Make sure you experiment with both the raw and cooked disk interfaces to see which works best for you. > Amancio -- ]] Mike Smith, Software Engineer msmith@gsoft.com.au [[ ]] Genesis Software genesis@gsoft.com.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control. (ph) +61-8-8267-3493 [[ ]] Unix hardware collector. "Where are your PEZ?" The Tick [[