diff --git a/trunk/src/core/srs_core_encoder.cpp b/trunk/src/core/srs_core_encoder.cpp
index 765027142..c42763e5e 100644
--- a/trunk/src/core/srs_core_encoder.cpp
+++ b/trunk/src/core/srs_core_encoder.cpp
@@ -548,6 +548,8 @@ int SrsEncoder::cycle()
 		}
 	}
 	
+	// TODO: cycle all processes.
+	
 	return ret;
 }