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- Xref: sparky rec.video:15263 alt.sources.d:1641
- Path: sparky!uunet!gatech!rpi!zaphod.mps.ohio-state.edu!cs.utexas.edu!rutgers!uwvax!ssec.wisc.edu!dws
- From: dws@ssec.wisc.edu (DaviD W. Sanderson)
- Newsgroups: rec.video,alt.sources.d
- Subject: Re: HERE IS VCR Plus source code
- Message-ID: <1992Dec31.175629.6976@cs.wisc.edu>
- Date: 31 Dec 92 17:56:29 GMT
- References: <9212311600.AA03824@procyon.cis.ksu.edu>
- Sender: news@cs.wisc.edu (The News)
- Organization: UW-Madison Space Science and Engineering Center
- Lines: 49
-
- In article <9212311600.AA03824@procyon.cis.ksu.edu> ojs@cougar.fluxor.com writes:
- >Source code in "C" that implements the decoding AND the encoding
- >algorythms of VCR PLUS, is presented below. Please use it for
- >research and educational purposes only.
-
- I tried replying by Email, but neither my host nor any other host I
- tried can resolve the domain name 'cougar.fluxor.com'.
-
- Anyway, the file readme.txt has a semantics problem. It says:
-
- : 3. Both programs ask for today's date. They should
- : instead get this from the computer itself but that is
- : too much involved with O/S details.
-
- The programs do NOT need today's date; they need the date of the
- television program. This is something you couldn't get from the
- computer automatically, since it doesn't know the date of the
- television program. To decode a vcrplus code meaningfully you must
- give the decode program not only the code but the date associated with
- the code. (I.e. a given code has different meanings on different
- dates.)
-
- For example, in this example in readme.txt:
-
- : Example 4: decode 1 2 93 19297
- : On January 2nd of 1993 you have asked a question. You
- : want to know "what show does the VCRPLUS code 19297
- : represent?" The program answers back
- : Code= 19297 1 4 93 Mapped_channel= 5 Start_time= 0900 Length= 30
-
- I tried out the program like this:
-
- decode 12 31 92 19297
-
- (since I asked the question today, 31 Dec 1992) and it gave me a
- completely different result - what the code means when associated with
- today's date, instead of the date meaningfully associated with the
- code.
-
- Similarly, to create a vcrplus code you must give the encode program
- the date the time slot begins, not the date you ran the encode program.
-
- Note, I am NOT a vcrplus code expert. I'm simply relaying my
- observations after figuring out how to use the programs.
-
- DaviD W. Sanderson (dws@ssec.wisc.edu)
-
- "The Noah Webster of smileys is David Sanderson"
- - The Wall Street Journal, 15 Sep 1992
-