av1/encoder add missing license blocks
BUG=chromium:795297
Change-Id: If5b1d3906652ff196297428cd884548eca3a5215
diff --git a/av1/encoder/dwt.c b/av1/encoder/dwt.c
index 0a57ebc..04088b2 100644
--- a/av1/encoder/dwt.c
+++ b/av1/encoder/dwt.c
@@ -1,3 +1,14 @@
+/*
+ * Copyright (c) 2018, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
#include <assert.h>
#include <stdlib.h>
#include <math.h>
