X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fframework%2Fmlt_properties.c;h=a774ca1d06727cfc5640d394f14fc6cf3b543547;hb=0ef075de03b447797a8530585815c8c86aae5178;hp=d830e44f7df3a3c7723ec69c664ad8343a5572af;hpb=0b288164cbeb9a3c98107d439d86844be13ba910;p=melted

diff --git a/src/framework/mlt_properties.c b/src/framework/mlt_properties.c
index d830e44..a774ca1 100644
--- a/src/framework/mlt_properties.c
+++ b/src/framework/mlt_properties.c
@@ -105,18 +105,40 @@ void mlt_properties_mirror( mlt_properties this, mlt_properties that )
 int mlt_properties_inherit( mlt_properties this, mlt_properties that )
 {
 	int count = mlt_properties_count( that );
-	while ( count -- )
+	int i = 0;
+	for ( i = 0; i < count; i ++ )
 	{
-		char *value = mlt_properties_get_value( that, count );
+		char *value = mlt_properties_get_value( that, i );
 		if ( value != NULL )
 		{
-			char *name = mlt_properties_get_name( that, count );
+			char *name = mlt_properties_get_name( that, i );
 			mlt_properties_set( this, name, value );
 		}
 	}
 	return 0;
 }
 
+/** Pass all properties from 'that' that match the prefix to 'this' (excluding the prefix).
+*/
+
+int mlt_properties_pass( mlt_properties this, mlt_properties that, char *prefix )
+{
+	int count = mlt_properties_count( that );
+	int length = strlen( prefix );
+	int i = 0;
+	for ( i = 0; i < count; i ++ )
+	{
+		char *name = mlt_properties_get_name( that, i );
+		if ( !strncmp( name, prefix, length ) )
+		{
+			char *value = mlt_properties_get_value( that, i );
+			if ( value != NULL )
+				mlt_properties_set( this, name + length, value );
+		}
+	}
+	return 0;
+}
+
 /** Locate a property by name
 */