Prefer the API over setting property.

diff --git a/src/framework/mlt_multitrack.c b/src/framework/mlt_multitrack.c
index a98d4120e5fe7e3a0950f779499707b3ad81e9a0..8bc2e403f4ca46dd2da1b3c61380f9ef7388e863 100644 (file)
--- a/src/framework/mlt_multitrack.c
+++ b/src/framework/mlt_multitrack.c
@@ -455,7 +455,7 @@ static int producer_get_frame( mlt_producer parent, mlt_frame_ptr frame, int ind
                // Indicate speed of this producer
                mlt_properties properties = MLT_FRAME_PROPERTIES( *frame );
                mlt_properties_set_double( properties, "_speed", speed );
-               mlt_properties_set_position( properties, "_position", position );
+               mlt_frame_set_position( *frame, position );
                mlt_properties_set_int( properties, "hide", hide );
        }
        else