From owner-freebsd-multimedia Thu Nov 6 15:45:18 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id PAA22533 for multimedia-outgoing; Thu, 6 Nov 1997 15:45:18 -0800 (PST) (envelope-from owner-freebsd-multimedia) Received: from arg1.demon.co.uk (arg1.demon.co.uk [194.222.34.166]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id PAA22527 for ; Thu, 6 Nov 1997 15:45:06 -0800 (PST) (envelope-from arg@arg1.demon.co.uk) Received: (from arg@localhost) by arg1.demon.co.uk (8.8.5/8.8.5) id XAA13798; Thu, 6 Nov 1997 23:52:04 GMT Date: Thu, 6 Nov 1997 23:52:03 +0000 (GMT) From: Andrew Gordon X-Sender: arg@server.arg.sj.co.uk To: Luigi Rizzo cc: multimedia@freebsd.org Subject: Re: Teletext decoding with the Hauppauge... In-Reply-To: <199711051701.SAA23167@labinfo.iet.unipi.it> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-multimedia@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Wed, 5 Nov 1997, Luigi Rizzo wrote: > Enclosed is a very primitive program, which, together with the Bt848 > patches that I submitted a few days ago allow you to capture teletext > data. > to capture page 120, etc. -- when a page is done it is displayed on > stdout. Fancy user interfaces will come next year... I am currently working on a teletext system (using some rather better hardware that allows the complete page database to be maintained in RAM/on disk rather than waiting for individual pages). My plan for user interface is to make a CGI that serves web pages. Most of what I am doing won't be directly applicable, but I can let you have a teletext page -> .gif file conversion utility if you want it. > I am not sure if the card can only capture teletext, or also > close-captioning or other "extended" services available around the > world. As an example, it _might_ be able to capture Intercast data > (but decoding them is a completely different issue...) in the > locations where this service is available. The chip is farirly hard-wired to the teletext system. In some places, (such as the UK) closed-caption is just teletext pages using the 'box' control characters; but AFAIK the closed-caption system used in the USA is completely different and incompatible.