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diff --git a/media/libaom/src/av1/encoder/gop_structure.h b/media/libaom/src/av1/encoder/gop_structure.h
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+++ b/media/libaom/src/av1/encoder/gop_structure.h
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+/*
+ * Copyright (c) 2019, 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_GOP_STRUCTURE_H_
+#define AOM_AV1_ENCODER_GOP_STRUCTURE_H_
+
+#include "av1/common/av1_common_int.h"
+#include "av1/encoder/ratectrl.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct AV1_COMP;
+struct EncodeFrameParams;
+
+#define MIN_ARF_GF_BOOST 240
+#define NORMAL_BOOST 100
+
+// Set up the Group-Of-Pictures structure for this GF_GROUP.  This involves
+// deciding where to place the various FRAME_UPDATE_TYPEs in the group.  It does
+// this primarily by setting the contents of
+// cpi->twopass.gf_group.update_type[].
+void av1_gop_setup_structure(
+    struct AV1_COMP *cpi, const struct EncodeFrameParams *const frame_params);
+
+int av1_calc_arf_boost(const TWO_PASS *twopass, const RATE_CONTROL *rc,
+                       FRAME_INFO *frame_info, int offset, int f_frames,
+                       int b_frames, int *num_fpstats_used,
+                       int *num_fpstats_required);
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // AOM_AV1_ENCODER_GOP_STRUCTURE_H_