libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_aq_cyclicrefresh.h

 /*
  *  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
 
+// The segment ids used in cyclic refresh: from base (no boost) to increasing
+// boost (higher delta-qp).
+#define CR_SEGMENT_ID_BASE    0
+#define CR_SEGMENT_ID_BOOST1  1
+#define CR_SEGMENT_ID_BOOST2  2
+
+// Maximum rate target ratio for setting segment delta-qp.
+#define CR_MAX_RATE_TARGET_RATIO 4.0
+
+// Boost factor for rate target ratio, for segment CR_SEGMENT_ID_BOOST2.
+#define CR_BOOST2_FAC 1.7
+
 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);
 
 // Estimate the bits, incorporating the delta-q from segment 1, after encoding
 // the frame.
 int vp9_cyclic_refresh_estimate_bits_at_q(const struct VP9_COMP *cpi,
                                           double correction_factor);
 
 // Estimate the bits per mb, for a given q = i and a corresponding delta-q
 // (for segment 1), prior to encoding the frame.
 int vp9_cyclic_refresh_rc_bits_per_mb(const struct VP9_COMP *cpi, int i,
                                       double correction_factor);
 
 // 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,
-                                       int64_t rate_sb);
+                                       int mi_row, int mi_col, BLOCK_SIZE bsize,
+                                       int64_t rate, int64_t dist);
 
 // Update the segmentation map, and related quantities: cyclic refresh map,
 // refresh sb_index, and target number of blocks to be refreshed.
 void vp9_cyclic_refresh_update__map(struct VP9_COMP *const cpi);
 
 // Update the actual number of blocks that were applied the segment delta q.
 void vp9_cyclic_refresh_update_actual_count(struct VP9_COMP *const cpi);
 
 // Set/update global/frame level refresh parameters.
 void vp9_cyclic_refresh_update_parameters(struct VP9_COMP *const cpi);
 
 // Setup cyclic background refresh: set delta q and segmentation map.
 void vp9_cyclic_refresh_setup(struct VP9_COMP *const cpi);
 
 int vp9_cyclic_refresh_get_rdmult(const CYCLIC_REFRESH *cr);
 
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif  // VP9_ENCODER_VP9_AQ_CYCLICREFRESH_H_