open my $fh, "<", $infile or die "error opening '$infile':$?";

[download]

The $? variable is not relevant in this context.    You should be using either $! or $^E. 


    if ( m/^(\d{2}:\d{2}:\d{2},\d+)\s\-\-\>\s(\d{2}:\d{2}:\d{2},\d+)/g
+ ) {

[download]

You are using the /g global option in a scalar context, which would make sense in a while loop, but the value of $_ changes each time you test it so it makes no sense to use it there. 


    my @elems = split(':', $time);
    my $seconds = pop @elems;
    my $minutes = pop @elems;
    my $hours   = pop @elems;

[download]

Why not just: 

    my ( $hours, $minutes, $seconds ) = split /:/, $time;

[download]

    # force to numerical
    $hours += 0; $minutes += 0; $seconds += 0;

[download]

An unnecessary step as the numbers are already numerical. 


    my $seconds = sprintf( "%02.3f", ( ( $sectime - ( $hours * 3600 ) 
+) - ( $minutes * 60 )) );

[download]

The number before the period in the format string for floating point is the total width.    So if you want the result to look like '12.345' then you need a format string of '%06.3f' because it has a total width of six characters.


In reply to Re: re-syncing these subtitles by jwkrahn
in thread re-syncing these subtitles by wazoox

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