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diff --git a/media/libaom/src/av1/encoder/dwt.h b/media/libaom/src/av1/encoder/dwt.h
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+/*
+ * 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.
+ */
+
+#ifndef AOM_AV1_ENCODER_DWT_H_
+#define AOM_AV1_ENCODER_DWT_H_
+
+#include "av1/common/common.h"
+#include "av1/common/enums.h"
+
+#define DWT_MAX_LENGTH 64
+
+void av1_fdwt8x8(tran_low_t *input, tran_low_t *output, int stride);
+void av1_fdwt8x8_uint8_input_c(uint8_t *input, tran_low_t *output, int stride,
+ int hbd);
+int av1_haar_ac_sad_8x8_uint8_input(uint8_t *input, int stride, int hbd);
+
+#endif // AOM_AV1_ENCODER_DWT_H_