X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fframework%2Fmlt_service.c;h=f15ec46af90ff7d087d0ceb775b8d589dd2c7b09;hb=944559b0832cfc93a52e2b9483042bfefd36c985;hp=bfcc91349870699a4cc030ac88e25862f60c8c44;hpb=2d328408132825439fc69462865e78659170efdc;p=mlt

diff --git a/src/framework/mlt_service.c b/src/framework/mlt_service.c
index bfcc9134..f15ec46a 100644
--- a/src/framework/mlt_service.c
+++ b/src/framework/mlt_service.c
@@ -87,7 +87,7 @@ int mlt_service_init( mlt_service self, void *child )
 	self->child = child;
 
 	// Generate local space
-	self->local = calloc( sizeof( mlt_service_base ), 1 );
+	self->local = calloc( 1, sizeof( mlt_service_base ) );
 
 	// Associate the methods
 	self->get_frame = service_get_frame;
@@ -618,7 +618,66 @@ int mlt_service_detach( mlt_service self, mlt_filter filter )
 	return error;
 }
 
-/** Retrieve a filter.
+/** Get the number of filters attached.
+ *
+ * \public \memberof mlt_service_s
+ * \param self a service
+ * \return the number of attached filters or -1 if there was an error
+ */
+
+int mlt_service_filter_count( mlt_service self )
+{
+	int result = -1;
+	if ( self )
+	{
+		mlt_service_base *base = self->local;
+		result = base->filter_count;
+	}
+	return result;
+}
+
+/** Reorder the attached filters.
+ *
+ * \public \memberof mlt_service_s
+ * \param self a service
+ * \param from the current index value of the filter to move
+ * \param to the new index value for the filter specified in \p from
+ * \return true if there was an error
+ */
+
+int mlt_service_move_filter( mlt_service self, int from, int to )
+{
+	int error = -1;
+	if ( self )
+	{
+		mlt_service_base *base = self->local;
+		if ( from < 0 ) from = 0;
+		if ( from >= base->filter_count ) from = base->filter_count - 1;
+		if ( to < 0 ) to = 0;
+		if ( to >= base->filter_count ) to = base->filter_count - 1;
+		if ( from != to && base->filter_count > 1 )
+		{
+			mlt_filter filter = base->filters[from];
+			int i;
+			if ( from > to )
+			{
+				for ( i = from; i > to; i-- )
+					base->filters[i] = base->filters[i - 1];
+			}
+			else
+			{
+				for ( i = from; i < to; i++ )
+					base->filters[i] = base->filters[i + 1];
+			}
+			base->filters[to] = filter;
+			mlt_events_fire( MLT_SERVICE_PROPERTIES(self), "service-changed", NULL );
+			error = 0;
+		}
+	}
+	return error;
+}
+
+/** Retrieve an attached filter.
  *
  * \public \memberof mlt_service_s
  * \param self a service
@@ -650,6 +709,18 @@ mlt_profile mlt_service_profile( mlt_service self )
 	return self? mlt_properties_get_data( MLT_SERVICE_PROPERTIES( self ), "_profile", NULL ) : NULL;
 }
 
+/** Set the profile for a service.
+ *
+ * \public \memberof mlt_service_s
+ * \param self a service
+ * \param profile the profile to set onto the service
+ */
+
+void mlt_service_set_profile( mlt_service self, mlt_profile profile )
+{
+    mlt_properties_set_data( MLT_SERVICE_PROPERTIES( self ), "_profile", profile, 0, NULL, NULL );
+}
+
 /** Destroy a service.
  *
  * \public \memberof mlt_service_s