diff --git a/libavcodec/qpeldsp.c b/libavcodec/qpeldsp.c
index 0beeab801a..62ebcaa480 100644
--- a/libavcodec/qpeldsp.c
+++ b/libavcodec/qpeldsp.c
@@ -1,5 +1,7 @@
 /*
  * quarterpel DSP functions
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
  *
  * This file is part of FFmpeg.
  *