Add service locks for parallelism.

[mlt] / src / modules / core / filter_luma.c

diff --git a/src/modules/core/filter_luma.c b/src/modules/core/filter_luma.c
index 28b2d6ee6573d5f17d74dfd041f7f82d23060253..0a146bebfce49d5aeba678f190a5b4abe70efe6f 100644 (file)
--- a/src/modules/core/filter_luma.c
+++ b/src/modules/core/filter_luma.c
@@ -37,6 +37,9 @@ static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format *
        int error = 0;
        mlt_filter filter = mlt_frame_pop_service( this );
        mlt_properties properties = MLT_FILTER_PROPERTIES( filter );
+
+       mlt_service_lock( MLT_FILTER_SERVICE( filter ) );
+
        mlt_transition luma = mlt_properties_get_data( properties, "luma", NULL );
        mlt_frame b_frame = mlt_properties_get_data( properties, "frame", NULL );
        mlt_properties b_frame_props = b_frame ? MLT_FRAME_PROPERTIES( b_frame ) : NULL;
@@ -111,6 +114,8 @@ static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format *
                }
        }
 
+       mlt_service_unlock( MLT_FILTER_SERVICE( filter ) );
+
        return error;
 }