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# DVB-T Roznava (Roznava, Slovak Republic)
# Created from http://www.dvbt.towercom.sk/odbornici.php
# T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy

# 2.st multiplex (commercial) - on channel 27
T 522000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE

# 3.st multiplex (public) - on channel 54
T 738000000 8MHz 2/3 NONE QAM64 8k 1/4 NONE
e.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
#!/usr/bin/perl

use strict;
use vars qw ($file $DELAY);
########## CONFIG
  $file = "lcd4linux"; # .png is appended
  $DELAY = 0;          # delay in seconds
                       # if delay is zero, file is sent when modified.
#################

use CGI qw/:push -nph/;
$| = 1;
my ($mtime, $nmtime, $size, $nsize);
(undef, undef, undef, undef, undef, undef, undef, $size, undef,
   $mtime) = stat "$file.png";
print multipart_init(-boundary=>'----------------here we go!');
while (1) {
  print multipart_start(-type=>'image/png');
  undef $/;
  open(IN, "$file.png") or die("Can't read '$file.png'");
  $_ = <IN>;
  print $_;
  close(IN);
  print multipart_end;
  if ($DELAY) {
    sleep $DELAY;
  }  
  else {
    W: while (1) {
  #    sleep(1);
      (undef, undef, undef, undef, undef, undef, undef, $nsize, undef,
         $nmtime) = stat "$file.png";
      if($mtime != $nmtime || $size != $nsize) {	 
        $mtime = $nmtime;
	$size = $nsize;
	last W;
      }	
    }	 
  }	
}