libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_aq_cyclicrefresh.h

Index: source/libvpx/vp9/encoder/vp9_aq_cyclicrefresh.h
===================================================================
--- source/libvpx/vp9/encoder/vp9_aq_cyclicrefresh.h	(revision 0)
+++ source/libvpx/vp9/encoder/vp9_aq_cyclicrefresh.h	(revision 0)
@@ -0,0 +1,50 @@
+/*
+ *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP9_ENCODER_VP9_AQ_CYCLICREFRESH_H_
+#define VP9_ENCODER_VP9_AQ_CYCLICREFRESH_H_
+
+#include "vp9/common/vp9_blockd.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct VP9_COMP;
+
+struct CYCLIC_REFRESH;
+typedef struct CYCLIC_REFRESH CYCLIC_REFRESH;
+
+CYCLIC_REFRESH *vp9_cyclic_refresh_alloc(int mi_rows, int mi_cols);
+
+void vp9_cyclic_refresh_free(CYCLIC_REFRESH *cr);
+
+// Prior to coding a given prediction block, of size bsize at (mi_row, mi_col),
+// check if we should reset the segment_id, and update the cyclic_refresh map
+// and segmentation map.
+void vp9_cyclic_refresh_update_segment(struct VP9_COMP *const cpi,
+                                       MB_MODE_INFO *const mbmi,
+                                       int mi_row, int mi_col,
+                                       BLOCK_SIZE bsize, int use_rd);
+
+// Setup cyclic background refresh: set delta q and segmentation map.
+void vp9_cyclic_refresh_setup(struct VP9_COMP *const cpi);
+
+void vp9_cyclic_refresh_set_rate_and_dist_sb(CYCLIC_REFRESH *cr,
+                                             int64_t rate_sb, int64_t dist_sb);
+
+int vp9_cyclic_refresh_get_rdmult(const CYCLIC_REFRESH *cr);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP9_ENCODER_VP9_AQ_CYCLICREFRESH_H_