Fix scan chan.pl
From MythTV Official Wiki
Revision as of 07:23, 13 September 2010 by Wagnerrp (talk | contribs) (adjust categories - the Perl Scripts category is intended for scripts using the perl bindings for database/proto access)
| Author | Bob |
| Description | Perl script to reformat channel numbers from linux-dvb scan program |
| Supports |
fix_scan_chan.pl
This script will take the output from the linux-dvb scan program and reformat for easier reading by the user.
Command line usage
perl fix_scan_chan.pl < scan.log > scan.conf
The Code
fix_scan_chan.pl
#!/usr/bin/perl
# Version 1.0 - Aug 7, 2009
use strict;
my(@cols, $freqid);
# ChannelName:Frequency:Modulation:VID:AID:PID
while(<STDIN>) {
chomp $_;
@cols = split /:/, $_;
$freqid = sprintf "%03d", freq2freqid($cols[1]);
$cols[0] = 'C' . $freqid . '-' . $cols[5];
print join(':', @cols) . "\n";
}
exit;
sub freqid2freq($) {
my $id = shift;
my @freqs = ( undef,
undef,
57000000,
63000000,
69000000,
79000000,
85000000,
177000000,
183000000,
189000000,
195000000,
201000000,
207000000,
213000000,
123012500,
129012500,
135012500,
141000000,
147000000,
153000000,
159000000,
165000000,
171000000,
219000000,
225000000,
231012500,
237012500,
243012500,
249012500,
255012500,
261012500,
267012500,
273012500,
279012500,
285012500,
291012500,
297012500,
303012500,
309012500,
315012500,
321012500,
327012500,
333025000,
339012500,
345012500,
351012500,
357012500,
363012500,
369012500,
375012500,
381012500,
387012500,
393012500,
399012500,
405000000,
411000000,
417000000,
423000000,
429000000,
435000000,
441000000,
447000000,
453000000,
459000000,
465000000,
471000000,
477000000,
483000000,
489000000,
495000000,
501000000,
507000000,
513000000,
519000000,
525000000,
531000000,
537000000,
543000000,
549000000,
555000000,
561000000,
567000000,
573000000,
579000000,
585000000,
591000000,
597000000,
603000000,
609000000,
615000000,
621000000,
627000000,
633000000,
639000000,
645000000,
93000000,
99000000,
105000000,
111025000,
117025000,
651000000,
657000000,
663000000,
669000000,
675000000,
681000000,
687000000,
693000000,
699000000,
705000000,
711000000,
717000000,
723000000,
729000000,
735000000,
741000000,
747000000,
753000000,
759000000,
765000000,
771000000,
777000000,
783000000,
789000000,
795000000,
801000000 );
return(undef) if($id > scalar(@freqs) - 1);
return($freqs[$id]);
}
sub freq2freqid($) {
my($freq, $i, $h, $f);
$freq = shift;
for($f = 0, $i = 2; $i < 127; $i++) {
$h = freqid2freq($i);
if($h == $freq) {
$f = 1;
last;
}
}
if(!$f) {
return(undef);
}
return($i);
}
