Run time type identification

[melted] / mlt++ / src / MltProducer.cpp

diff --git a/mlt++/src/MltProducer.cpp b/mlt++/src/MltProducer.cpp
index a12c1da..96d9017 100644 (file)
--- a/mlt++/src/MltProducer.cpp
+++ b/mlt++/src/MltProducer.cpp
@@ -36,6 +36,18 @@ Producer::Producer( char *id, char *service ) :
                instance = mlt_factory_producer( "fezzik", id != NULL ? id : service );
 }
 
+Producer::Producer( Service &producer ) :
+       instance( NULL )
+{
+       service_type type = producer.type( );
+       if ( type == producer_type || type == playlist_type || 
+                type == tractor_type || type == multitrack_type )
+       {
+               instance = ( mlt_producer )producer.get_service( );
+               inc_ref( );
+       }
+}
+
 Producer::Producer( mlt_producer producer ) :
        instance( producer )
 {