Date: Thu, 6 Nov 1997 23:52:03 +0000 (GMT) From: Andrew Gordon <arg@arg1.demon.co.uk> To: Luigi Rizzo <luigi@labinfo.iet.unipi.it> Cc: multimedia@freebsd.org Subject: Re: Teletext decoding with the Hauppauge... Message-ID: <Pine.BSF.3.91.971106234411.13457D-100000@server.arg.sj.co.uk> In-Reply-To: <199711051701.SAA23167@labinfo.iet.unipi.it>
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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. <snip> > 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.
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