don't re-create slides from video all the time

diff --git a/bin/mplayer.pl b/bin/mplayer.pl
index f996636..a21793c 100755 (executable)
--- a/bin/mplayer.pl
+++ b/bin/mplayer.pl
@@ -194,7 +194,7 @@ sub html5tv {
                                push @videos, [ @$s, $video ];
                        }
                } elsif ( $s->[2] =~ m{slide:(\d+)\s+shot:(\d+\.\d+)} ) {
-                       push @frames, [ $2, $1 ];
+                       push @frames, [ $2, $1 ] unless -e "$media_dir/hires/f$1.jpg";
                        next;
                }