* ssa-retime : refactor loglevel usage

bin/ssa-retime

@@ -55,6 +55,7 @@ sub add_point {
   my $err = $p->parse($val);
   die "$err\n" if $err;
   push @points, $p;
+  @points = sort { $a->time <=> $b->time } @points;
 }
 
 ########### init ###################
@@ -100,7 +101,7 @@ if ($mode eq 'framerate') {
 $opts{infile}
   or die "No input file\n";
 
-my $ssa = Subtitle::Format::SSA->new(debug => !!$opts{loglevel});
+my $ssa = Subtitle::Format::SSA->new(debug => ($opts{loglevel} >= 2 ? 1 : 0));
 unless ($ssa->from_file($opts{infile})) {
   foreach my $line (@{ $ssa->{log} }) {
     print $line, "\n";
@@ -108,10 +109,6 @@ unless ($ssa->from_file($opts{infile})) {
   exit 1;
 }
 
-if (@points) {
-  @points = sort { $a->time <=> $b->time } @points;
-}
-
 if ($mode eq 'framerate') {
   my $mod = $opts{inrate} / $opts{outrate};
   foreach my $e (@{ $ssa->events }) {
@@ -125,8 +122,8 @@ if ($mode eq 'framerate') {
         next if $p->time > $e->t_start;
         $e->t_start($e->t_start + $p->shift);
         $e->t_end  ($e->t_end   + $p->shift);
-      } # foreach
-    } # while
+      } # foreach @events
+    } # while @points
   } elsif ($opts{amode} eq 'rst') {
     while (my $p = shift @points) {
       # use time of next point as upper limit for current
@@ -136,8 +133,8 @@ if ($mode eq 'framerate') {
         next if $end and $end <= $e->t_start; # too late
         $e->t_start($e->t_start + $p->shift);
         $e->t_end  ($e->t_end   + $p->shift);
-      } # foreach
-    } # while
+      } # foreach @events
+    } # while @points
   }
 } elsif ($mode eq 'drift') {
   if ($points[0]->time >= 0.2) {
@@ -155,18 +152,22 @@ if ($mode eq 'framerate') {
     my $p = Subtitle::TimePoint->new(time => $maxtime, shift => 0.0);
     push @points, $p;
   }
+  if ($opts{loglevel} >= 1) {
     # dump points list
     print "Final points list:\n";
     foreach my $p (@points) {
       printf "- %d:%02d:%02d.%03d ~ %.3f\n", make_timing($p->time), $p->shift;
     }
     print "-" x 30, "\n";
+  }
   # real retime
   $ssa->sort_events;
   foreach my $e (@{ $ssa->events }) {
     while ($points[1]->time <= $e->t_start) {
+      if ($opts{loglevel} >= 2) {
         printf "move timepoints: %d:%02d:%02d.%03d (endpoint) <= %d:%02d:%02d.%03d (event)\n",
           make_timing($points[1]->time), make_timing($e->t_start);
+      }
       shift @points;
     }
     my ($a, $b) = @points;
@@ -179,6 +180,7 @@ if ($mode eq 'framerate') {
             : ($a->shift + $abs * $pct);
     $e->t_start($e->t_start + $mod);
     $e->t_end  ($e->t_end   + $mod);
+    next unless $opts{loglevel} >= 2;
     printf "- %d:%02d:%02d.%03d ~ %.3f\n", make_timing($e->t_start), $mod;
   }
 }