docs: Update GESTimelineTestSource documentation

diff --git a/ges/ges-timeline-test-source.c b/ges/ges-timeline-test-source.c
index 5032e7f..f02a95d 100644 (file)
--- a/ges/ges-timeline-test-source.c
+++ b/ges/ges-timeline-test-source.c
@@ -22,9 +22,11 @@
  * SECTION:ges-timeline-test-source
  * @short_description: Render video and audio test patterns in a
  * #GESTimelineLayer
- * 
- * Useful for testing purposes or for filling gaps between media in
- * a #GESTimelineLayer.
+ *
+ * Useful for testing purposes.
+ *
+ * You can use the ges_asset_request_simple API to create a Asset
+ * capable of extractinf GESTimelineTestSource-s
  */
 
 #include "ges-internal.h"