First draft of event handling

[mlt] / src / framework / mlt_service.c

diff --git a/src/framework/mlt_service.c b/src/framework/mlt_service.c
index 7a66a577e417b40224d71bd2ce121080a9ddb26e..6df363064cebcd5534d3c38c35bd2fc9002ef665 100644 (file)
--- a/src/framework/mlt_service.c
+++ b/src/framework/mlt_service.c
@@ -53,6 +53,7 @@ mlt_service_base;
 static void mlt_service_disconnect( mlt_service this );
 static void mlt_service_connect( mlt_service this, mlt_service that );
 static int service_get_frame( mlt_service this, mlt_frame_ptr frame, int index );
+static void mlt_service_property_changed( mlt_listener, mlt_properties owner, mlt_service this, void **args );
 
 /** Constructor
 */
@@ -79,11 +80,20 @@ int mlt_service_init( mlt_service this, void *child )
        {
                this->parent.close = ( mlt_destructor )mlt_service_close;
                this->parent.close_object = this;
+
+               mlt_events_init( &this->parent );
+               mlt_events_register( &this->parent, "property-changed", ( mlt_transmitter )mlt_service_property_changed );
        }
 
        return error;
 }
 
+static void mlt_service_property_changed( mlt_listener listener, mlt_properties owner, mlt_service this, void **args )
+{
+       if ( listener != NULL )
+               listener( owner, this, ( char * )args[ 0 ] );
+}
+
 /** Connect a producer service.
        Returns: > 0 warning, == 0 success, < 0 serious error
                         1 = this service does not accept input