Add service locks for parallelism.

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

diff --git a/src/modules/core/filter_data_show.c b/src/modules/core/filter_data_show.c
index 54c3511193db4d965b5e24405a36d2197d140abc..73d7d778f243fcc6c599be29da3e8258de637955 100644 (file)
--- a/src/modules/core/filter_data_show.c
+++ b/src/modules/core/filter_data_show.c
@@ -300,12 +300,16 @@ static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format
        // Get the frame properties
        mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
 
+       mlt_service_lock( MLT_FILTER_SERVICE( filter ) );
+
        // Track specific
        process_queue( mlt_properties_get_data( frame_properties, "data_queue", NULL ), frame, filter );
 
        // Global
        process_queue( mlt_properties_get_data( frame_properties, "global_queue", NULL ), frame, filter );
 
+       mlt_service_unlock( MLT_FILTER_SERVICE( filter ) );
+
        // Need to get the image
        return mlt_frame_get_image( frame, image, format, width, height, 1 );
 }