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diff --git a/third_party/aom/av1/encoder/aq_variance.h b/third_party/aom/av1/encoder/aq_variance.h
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+/*
+ * Copyright (c) 2016, 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_AQ_VARIANCE_H_
+#define AOM_AV1_ENCODER_AQ_VARIANCE_H_
+
+#include "av1/encoder/encoder.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void av1_vaq_frame_setup(AV1_COMP *cpi);
+
+int av1_log_block_var(const AV1_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bs);
+int av1_compute_deltaq_from_energy_level(const AV1_COMP *const cpi,
+ int block_var_level);
+int av1_block_wavelet_energy_level(const AV1_COMP *cpi, MACROBLOCK *x,
+ BLOCK_SIZE bs);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // AOM_AV1_ENCODER_AQ_VARIANCE_H_