Date: Fri, 15 May 1998 06:12:12 +0200 (MET DST) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: rhh@ct.picker.com (Randall Hopper) Cc: dnelson@slip.net, multimedia@FreeBSD.ORG, msh@FreeBSD.ORG, freebsd-multimedia@FreeBSD.ORG Subject: Re: BT848 and VBI data Message-ID: <199805150412.GAA01895@labinfo.iet.unipi.it> In-Reply-To: <19980514171530.B18554@ct.picker.com> from "Randall Hopper" at May 14, 98 05:15:11 pm
next in thread | previous in thread | raw e-mail | index | archive | help
Since i just looked at it... www.norpak.ca has more info on the topic of VBI and intercast, and reading their pages makes me believe that intercast info might be embedded in the standard teletext format, so that decoding can be at least partially supported by the hardware. A description of the FEC algorithms used is not available from the norpak pages, but it might be the same one documented in some internet draft discussing the transmission of IP-over-VBI which should be available at www.ietf.org I'd be glad to do some experiments on this but i don't think i am reached by any intercast signal at the moment... cheers luigi -----------------------------+-------------------------------------- Luigi Rizzo | Dip. di Ingegneria dell'Informazione email: luigi@iet.unipi.it | Universita' di Pisa tel: +39-50-568533 | via Diotisalvi 2, 56126 PISA (Italy) fax: +39-50-568522 | http://www.iet.unipi.it/~luigi/ _____________________________|______________________________________ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199805150412.GAA01895>