diff --git a/trunk/init_sql.pl b/trunk/init_sql.pl
index 75e6daf..a5dac66 100644
--- a/trunk/init_sql.pl
+++ b/trunk/init_sql.pl
@@ -75,10 +75,10 @@ $dbh->do(qq{create table
         coverage        varchar(255)        not null,
         rights          varchar(255)        not null,
         license         varchar(255)        not null,
-        filesize        int                 not null,
-        duration        int                 not null,
-        width           smallint            not null,
-        height          smallint            not null,
+        filesize        int                 default -1,
+        duration        int                 default -1,
+        width           smallint            default -1,
+        height          smallint            default -1,
         fps             float               not null,
         hash            char(64)            not null,
         primary key     (id)
diff --git a/trunk/tools/daemon.pl b/trunk/tools/daemon.pl
index fbf6c3c..0bdf81f 100755
--- a/trunk/tools/daemon.pl
+++ b/trunk/tools/daemon.pl
@@ -43,7 +43,7 @@ while(1)
 {
     #get fresh video id from db
     my $sth = $dbh->prepare(qq{select id, filesize, duration, width, height, fps, hash
-        from uploaded where duration != 0 and width != 0 and height != 0 limit 1}) or interrupt $dbh->errstr;
+        from uploaded where filesize != -1 and duration != -1 and width != -1 and height != -1 limit 1}) or interrupt $dbh->errstr;
         
     $sth->execute() or interrupt $dbh->errstr;
     my ($id,$filesize, $duration, $width, $height, $fps, $sha) = $sth->fetchrow_array();