From owner-freebsd-multimedia@FreeBSD.ORG Thu Mar 20 16:51:18 2008 Return-Path: Delivered-To: multimedia@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B7E72106564A for ; Thu, 20 Mar 2008 16:51:18 +0000 (UTC) (envelope-from usleepless@gmail.com) Received: from nf-out-0910.google.com (nf-out-0910.google.com [64.233.182.186]) by mx1.freebsd.org (Postfix) with ESMTP id 501DD8FC1F for ; Thu, 20 Mar 2008 16:51:18 +0000 (UTC) (envelope-from usleepless@gmail.com) Received: by nf-out-0910.google.com with SMTP id b2so592462nfb.33 for ; Thu, 20 Mar 2008 09:51:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=rg151vXP1nsejhB5AKSIEiznxeqZ93EI/fYGY11onmg=; b=JGaZVs4KD6++qiRwXuyO6KcqWG27l82YH5foR+vr9m0XD5dId9op0uojQeRcivVJ6gGhBZ0DQBY5H94l2BTXxzoHKulOnYTNOZuM9JTaByQXKHNTLvd6M6mmlhI4woZh2fpYEUEq8ZK4jQH/KhAdPiQt29/6JE7NZFVuaWzB9FI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=QI+xFhOr+MHU7Af4UnEaWJEiDvvTSnN4DLCg98R0f1qzkwA1Lid80A5K7EXmjwC8pNvNJY8vt7/tyzfOjf10GP1LL+tzn5lw13K/sBz4eoY2pR87nPCfnWKaE5PW9jcoGGL3S6Ge/ErIpFAtWtOzlMEIWG1z+TO1gbIOPRCJBSA= Received: by 10.142.229.4 with SMTP id b4mr1459320wfh.125.1206031875799; Thu, 20 Mar 2008 09:51:15 -0700 (PDT) Received: by 10.142.13.10 with HTTP; Thu, 20 Mar 2008 09:51:15 -0700 (PDT) Message-ID: Date: Thu, 20 Mar 2008 17:51:15 +0100 From: usleepless@gmail.com To: "Luigi Rizzo" In-Reply-To: <20080320082100.GA5947@onelab2.iet.unipi.it> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <47E20F35.4060102@elischer.org> <20080320082100.GA5947@onelab2.iet.unipi.it> Cc: Julian Elischer , multimedia@freebsd.org Subject: Re: webcam video capture X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Mar 2008 16:51:18 -0000 On Thu, Mar 20, 2008 at 9:21 AM, Luigi Rizzo wrote: > On Thu, Mar 20, 2008 at 12:16:05AM -0700, Julian Elischer wrote: > > does anyone have anything that can capture video > > from the webcams that we have support for? > > > > I have been able to get still shots but I would like to be able to > > write a stream to a file.. > > > > > > I could do it with firewire, but I need to do it with cheap > > hardware.. > > if you look at the pwcview application that is in the linux-kmod-compat > or linux-kmod-gspca, that one has support for writing raw or jpg > frames to disk. The source code is small and relatively simple > to modif, and it can run in headless mode. > > Note though that for many of the webcams, the gspca driver does not > have good support for controlling brightness or contrast, which > basically means that outdoor pictures tend to come coimpletely > white. i observed the same with my Pixart-chipset webcam, and have patches for this problem. i will try to get the patches applied upstream ( still messing about with the agc ). if anyone is interested right now, make yourself heard. regards, usleep