From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mk-outboundfilter-6.mail.uk.tiscali.com ([212.74.114.14]:59767 "EHLO mk-outboundfilter-6.mail.uk.tiscali.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933399Ab0BQAPB (ORCPT ); Tue, 16 Feb 2010 19:15:01 -0500 From: Adam Baker To: Hans de Goede Subject: Re: pac207: problem with Trust USB webcam Date: Wed, 17 Feb 2010 00:04:51 +0000 Cc: Frans Pop , linux-media@vger.kernel.org References: <201002150038.03060.elendil@planet.nl> <4B7B089A.4060504@redhat.com> In-Reply-To: <4B7B089A.4060504@redhat.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201002170004.51883.linux@baker-net.org.uk> Sender: linux-media-owner@vger.kernel.org List-ID: On Tuesday 16 Feb 2010, Hans de Goede wrote: > Hi, > > You need to use libv4l and have your apps patched > to use libv4l or use the LD_PRELOAD wrapper. > > Here is the latest libv4l: > http://people.fedoraproject.org/~jwrdegoede/libv4l-0.6.5-test.tar.gz > > And here are install instructions: > http://hansdegoede.livejournal.com/7622.html > Hi, libv4l is already packaged by lenny but doing LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so xawtv results in either a plain green screen or a mostly green screen with some picture visible behind it. IIRC this is due to a bug in older versions of xawtv. I didn't try vlc as it wanted to install too many dependencies but I did try cheese which also wouldn't work. I did find I could capture single frames with LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so vgrabbj -d /dev/video0 >grab.jpg or LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so fswebcam --save grab2.jpg which suggests that the packaged libv4l is fine and it is just the apps that are an issue. Adam Baker