[linux-dvb] bug in szap-utility

Uwe Bugla uwe.bugla at gmx.de
Fri Mar 9 14:58:10 CET 2007


-------- Original-Nachricht --------
Datum: Fri, 9 Mar 2007 13:52:07 +0100
Von: Marcel Siegert <mws at linuxtv.org>
An: linux-dvb at linuxtv.org
CC: "Uwe Bugla" <uwe.bugla at gmx.de>
Betreff: Re: [linux-dvb] bug in szap-utility

> On Friday 09 March 2007, Uwe Bugla wrote:
> > 
> > -------- Original-Nachricht --------
> > Datum: Tue, 06 Mar 2007 20:14:16 +0100
> > Von: Michel Verbraak <michel at verbraak.org>
> > An: linux-dvb at linuxtv.org
> > CC: 
> > Betreff: Re: [linux-dvb] bug in szap-utility
> > 
> > > Uwe Bugla schreef:
> > > > Hi folks,
> > > > as part of the Debain package dvb-utils 1.1.1-2 the szap utility has
> the
> > > following bug:
> > > >
> > > > 1. The start transponder file of Eutelsat Hotbird13.0E contains a
> "H" as
> > > description of the polarization.
> > > >
> > > > 2. Unfortunately this "H" is being interpreted as "V".
> > > >
> > > > 3. So if you try to produce a transponder list with the start
> > > transponder you are trapped as nothing works!
> > > >
> > > > To see the error yourself, try the following example in the console:
> > > > szap -r -a0 -c trapz.txt -n1
> > > >
> > > > where trapz.txt looks like this:
> > > > Hotbird-13.0E:12539:H:1:27500::::
> > > >
> > > >   
> > > With which program did you create the trapz.txt file?
> > Salut Michel,
> > with a program called "pere" which is a new revolutionary development as
> it scans a lot of more accurate as "scan" or "dvbscan" ever did!
> > But please ignore that and see the szap bug instead. The error only
> happens with "H", not with "V", OK?
> > > My scan or scandvb program creates only lower cases polarization 
> > > characters (v or h).
> > > I think the szap program only recognizes lowercase by design.
> > > 
> > > > In the console you will see the right frequency and the right symbol
> > > rate.
> > > > But the polarization will be printed out as "V" (vertical) instead
> of
> > > "H" (horizontal).
> > > >
> > > > In other words: The bug is: szap cannot set equal the letter "h"
> with
> > > the letter "H"
> > > >
> > > > Regards
> > > >
> > > > Uwe
> > > >
> > > > P. S.: I solved the problem by a TCL-TK workaround, but it rather
> should
> > > be solved in the sourcecode,
> > > > shouldn't it? So can someone reading this please fix that bug in the
> > > source code?
> > > >
> > > >   
> > > 
> > > 
> > > 
> > > _______________________________________________
> > > linux-dvb mailing list
> > > linux-dvb at linuxtv.org
> > > http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
> > 
> > Regards
> > Uwe
> > 
> 
> hi uwe,
> 
> yes, your predication is correct on the "is does not happen at v or V" for
> polarization.
> 
> if you have a look at the sources, and also at my proposed patch - i am
> still waiting for your answer -
> 
> szap just check[s|ed] for the h and if that is NOT present is assumes v.
> 
> so everything else than a "h" or (with my patch applied) "H" will be
> treated as vertical.
> 
> regards
> marcel

Marcel, again: Thanks for your help.

But please give me some time, OK? I aint no robot, OK?
No sweat please, take it slow, OK?

Regards

Uwe

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