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staylo
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Joined: Apr 06, 2005
Posts: 2
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 Posted: Thu Apr 07, 2005 12:29 am Post subject: BBC traffic news / TPEG |
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| Forgive me if I'm being dense, but a quick search failed to turn up any mention of TPEG on any forum here (as seen at http://www.bbc.co.uk/travelnews/xml/ ). Are there no programs to use this data with TTN? |
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lbendlin
Pocket GPS Staff
Joined: 02/11/2002 22:41:59
Posts: 11878
Location: Massachusetts, USA
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| Posted: Thu Apr 07, 2005 1:03 am Post subject: |
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Don't forget - this is XML data which is very uneconomical on bandwidth (compared to compressed TMC or even plain text) . So there may actually be little interest to implement this as long as other, cheaper alternatives are available.
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staylo
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Joined: Apr 06, 2005
Posts: 2
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| Posted: Thu Apr 07, 2005 10:53 am Post subject: |
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My fault, didn't check the page I'd linked to closely before sending! There's also a binary stream available (halfway down this page: http://www.bbc.co.uk/travelnews/about/tpeg/ ), though on closer inspection it seems to be incomplete ( 'This is a section of a TPEG binary stream containing a single 'turn' of the current TPEG 'carousel' with the appropriate framing structure, messages and components.'' ). That'll teach me to post late at night!
If a complete binary stream is posted (or if that stream has enough information), it looks like TPEG might be one to watch..[/i] |
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Skippy
Pocket GPS Verifier
Joined: 24/06/2003 00:22:12
Posts: 2946
Location: Escaped to the Antipodies! 36.83°S 174.75°E
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| Posted: Thu Apr 07, 2005 1:43 pm Post subject: |
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| lbendlin wrote: | | Don't forget - this is XML data which is very uneconomical on bandwidth (compared to compressed TMC or even plain text) . So there may actually be little interest to implement this as long as other, cheaper alternatives are available. |
Looking at the binary feed, it seems pretty efficient, but you can still compress it by 50% using zip or gzip.
Why don't they just supply the files in zip gz format and be done with it?
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