Introduce some more civilized ways to copy properties.

[melted] / src / framework / mlt_property.c

diff --git a/src/framework/mlt_property.c b/src/framework/mlt_property.c
index 016ea91..d057f0c 100644 (file)
--- a/src/framework/mlt_property.c
+++ b/src/framework/mlt_property.c
@@ -310,4 +310,31 @@ void mlt_property_close( mlt_property this )
        free( this );
 }
 
+/** Pass the property 'that' to 'this'.
+* Who to blame: Zach <zachary.drew@gmail.com>
+*/
+void mlt_property_pass( mlt_property this, mlt_property that )
+{
+       mlt_property_clear( this );
+
+       this->types = that->types;
 
+       if ( this->types & mlt_prop_int64 )
+               this->prop_int64 = that->prop_int64;
+       else if ( this->types & mlt_prop_int )
+               this->prop_int = that->prop_int;
+       else if ( this->types & mlt_prop_double )
+               this->prop_double = that->prop_double;
+       else if ( this->types & mlt_prop_position )
+               this->prop_position = that->prop_position;
+       else if ( this->types & mlt_prop_string )
+       {
+               if ( that->prop_string != NULL )
+                       this->prop_string = strdup( that->prop_string );
+       }
+       else if ( this->types & mlt_prop_data && this->serialiser != NULL )
+       {
+               this->types = mlt_prop_string;
+               this->prop_string = this->serialiser( this->data, this->length );       
+       }
+}