From owner-freebsd-multimedia Tue Feb 11 11:35:22 2003 Delivered-To: freebsd-multimedia@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7C51237B401 for ; Tue, 11 Feb 2003 11:35:20 -0800 (PST) Received: from carbon.berkeley.netdot.net (carbon.berkeley.netdot.net [216.27.190.205]) by mx1.FreeBSD.org (Postfix) with ESMTP id E0F5043F93 for ; Tue, 11 Feb 2003 11:35:19 -0800 (PST) (envelope-from nick@netdot.net) Received: by carbon.berkeley.netdot.net (Postfix, from userid 101) id 87954F80A; Tue, 11 Feb 2003 11:35:19 -0800 (PST) Date: Tue, 11 Feb 2003 11:35:19 -0800 From: Nicholas Esborn To: Steve O'Hara-Smith Cc: multimedia@FreeBSD.ORG, dhenin@cyclopes.org, jit@wanadoo.fr Subject: Re: CALL FOR TESTERS - ffmpeg TV formats Message-ID: <20030211193519.GA8846@carbon.berkeley.netdot.net> References: <20030206191147.2a820325.steve@sohara.org> <20030208213739.27dc0d40.steve@sohara.org> <20030208232607.GA26250@carbon.berkeley.netdot.net> <20030209084733.33eace3b.steve@sohara.org> <20030210010229.GB26250@carbon.berkeley.netdot.net> <20030210075106.57230761.steve@sohara.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: <20030210075106.57230761.steve@sohara.org> User-Agent: Mutt/1.5.3i 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 On Mon, Feb 10, 2003 at 07:51:06AM +0100, Steve O'Hara-Smith wrote: > On Sun, 9 Feb 2003 17:02:29 -0800 > > /usr/local/bin/bsdbktr_tvtune 792 > Tunes in BBC2 on my UPC feed - it only groks frequency not > channels. I tried using bsdbktr_tvtune, using NTSC frequencies, right before running ffmpeg, but I don't get any signal. I think there's some tuner-related setting on my bktr card (Hauppage, I think) that is extremely finicky. I've tried all sorts of things to set the channel prior to recording. Seth Kingsley wrote a little program that uses the TVTUNER_SETCHNL ioctl. If I use it while fxtv is running, the channel changes properly, and fxtv even notices and updates its display to reflect the new channel. However, if I run it before or during ffmpeg, I get static. The first time I do this, there may be a bit of signal, as though the tuning was close but not great. If I run it a few more times, after the 2nd or third time there is nothing but static. Very strange. The only solution I've been able to make work is a hacked version of fxtv, which exits as soon as it initializes the card. It's a really ugly solution though, it requires an X server to run. I've done a trace on fxtv, and it uses a huge number of meteor and bt848 ioctls repeatedly, so it's hard to tell what's actually relevant. -nick > NE> It would be nice if ffmpeg had some interface to allow drivers to > NE> accept options from the command line. >=20 > Yes it would! >=20 > --=20 > C:>WIN | Directable Mirrors > The computer obeys and wins. |A Better Way To Focus The Sun > You lose and Bill collects. | licenses available - see: > | http://www.sohara.org/ --=20 Nicholas Esborn Unix Systems Administrator Berkeley, California To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message