mlt_properties_set( watermark_properties, "producer.olcolour", mlt_properties_get( my_properties, "olcolour" ) );
mlt_properties_set( watermark_properties, "producer.pad", mlt_properties_get( my_properties, "pad" ) );
mlt_properties_set( watermark_properties, "producer.outline", mlt_properties_get( my_properties, "outline" ) );
mlt_properties_set( watermark_properties, "producer.olcolour", mlt_properties_get( my_properties, "olcolour" ) );
mlt_properties_set( watermark_properties, "producer.pad", mlt_properties_get( my_properties, "pad" ) );
mlt_properties_set( watermark_properties, "producer.outline", mlt_properties_get( my_properties, "outline" ) );