libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_rd.h

Index: source/libvpx/vp9/encoder/vp9_rd.h
===================================================================
--- source/libvpx/vp9/encoder/vp9_rd.h	(revision 0)
+++ source/libvpx/vp9/encoder/vp9_rd.h	(revision 0)
@@ -0,0 +1,165 @@
+/*
+ *  Copyright (c) 2010 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_RD_H_
+#define VP9_ENCODER_VP9_RD_H_
+
+#include <limits.h>
+
+#include "vp9/common/vp9_blockd.h"
+
+#include "vp9/encoder/vp9_block.h"
+#include "vp9/encoder/vp9_context_tree.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define RDDIV_BITS          7
+
+#define RDCOST(RM, DM, R, D) \
+  (((128 + ((int64_t)R) * (RM)) >> 8) + (D << DM))
+#define QIDX_SKIP_THRESH     115
+
+#define MV_COST_WEIGHT      108
+#define MV_COST_WEIGHT_SUB  120
+
+#define INVALID_MV 0x80008000
+
+#define MAX_MODES 30
+#define MAX_REFS  6
+
+// This enumerator type needs to be kept aligned with the mode order in
+// const MODE_DEFINITION vp9_mode_order[MAX_MODES] used in the rd code.
+typedef enum {
+  THR_NEARESTMV,
+  THR_NEARESTA,
+  THR_NEARESTG,
+
+  THR_DC,
+
+  THR_NEWMV,
+  THR_NEWA,
+  THR_NEWG,
+
+  THR_NEARMV,
+  THR_NEARA,
+  THR_COMP_NEARESTLA,
+  THR_COMP_NEARESTGA,
+
+  THR_TM,
+
+  THR_COMP_NEARLA,
+  THR_COMP_NEWLA,
+  THR_NEARG,
+  THR_COMP_NEARGA,
+  THR_COMP_NEWGA,
+
+  THR_ZEROMV,
+  THR_ZEROG,
+  THR_ZEROA,
+  THR_COMP_ZEROLA,
+  THR_COMP_ZEROGA,
+
+  THR_H_PRED,
+  THR_V_PRED,
+  THR_D135_PRED,
+  THR_D207_PRED,
+  THR_D153_PRED,
+  THR_D63_PRED,
+  THR_D117_PRED,
+  THR_D45_PRED,
+} THR_MODES;
+
+typedef enum {
+  THR_LAST,
+  THR_GOLD,
+  THR_ALTR,
+  THR_COMP_LA,
+  THR_COMP_GA,
+  THR_INTRA,
+} THR_MODES_SUB8X8;
+
+typedef struct RD_OPT {
+  // Thresh_mult is used to set a threshold for the rd score. A higher value
+  // means that we will accept the best mode so far more often. This number
+  // is used in combination with the current block size, and thresh_freq_fact
+  // to pick a threshold.
+  int thresh_mult[MAX_MODES];
+  int thresh_mult_sub8x8[MAX_REFS];
+
+  int threshes[MAX_SEGMENTS][BLOCK_SIZES][MAX_MODES];
+  int thresh_freq_fact[BLOCK_SIZES][MAX_MODES];
+
+  int64_t comp_pred_diff[REFERENCE_MODES];
+  int64_t prediction_type_threshes[MAX_REF_FRAMES][REFERENCE_MODES];
+  int64_t tx_select_diff[TX_MODES];
+  // TODO(agrange): can this overflow?
+  int tx_select_threshes[MAX_REF_FRAMES][TX_MODES];
+
+  int64_t filter_diff[SWITCHABLE_FILTER_CONTEXTS];
+  int64_t filter_threshes[MAX_REF_FRAMES][SWITCHABLE_FILTER_CONTEXTS];
+  int64_t filter_cache[SWITCHABLE_FILTER_CONTEXTS];
+  int64_t mask_filter;
+
+  int RDMULT;
+  int RDDIV;
+} RD_OPT;
+
+struct TileInfo;
+struct VP9_COMP;
+struct macroblock;
+
+int vp9_compute_rd_mult(const struct VP9_COMP *cpi, int qindex);
+
+void vp9_initialize_rd_consts(struct VP9_COMP *cpi);
+
+void vp9_initialize_me_consts(struct VP9_COMP *cpi, int qindex);
+
+void vp9_model_rd_from_var_lapndz(unsigned int var, unsigned int n,
+                                  unsigned int qstep, int *rate,
+                                  int64_t *dist);
+
+int vp9_get_switchable_rate(const struct VP9_COMP *cpi);
+
+const YV12_BUFFER_CONFIG *vp9_get_scaled_ref_frame(const struct VP9_COMP *cpi,
+                                                   int ref_frame);
+
+void vp9_init_me_luts();
+
+void vp9_get_entropy_contexts(BLOCK_SIZE bsize, TX_SIZE tx_size,
+                              const struct macroblockd_plane *pd,
+                              ENTROPY_CONTEXT t_above[16],
+                              ENTROPY_CONTEXT t_left[16]);
+
+void vp9_set_rd_speed_thresholds(struct VP9_COMP *cpi);
+
+void vp9_set_rd_speed_thresholds_sub8x8(struct VP9_COMP *cpi);
+
+static INLINE int rd_less_than_thresh(int64_t best_rd, int thresh,
+                                      int thresh_fact) {
+    return best_rd < ((int64_t)thresh * thresh_fact >> 5) || thresh == INT_MAX;
+}
+
+void vp9_mv_pred(struct VP9_COMP *cpi, MACROBLOCK *x,
+                 uint8_t *ref_y_buffer, int ref_y_stride,
+                 int ref_frame, BLOCK_SIZE block_size);
+
+void vp9_setup_pred_block(const MACROBLOCKD *xd,
+                          struct buf_2d dst[MAX_MB_PLANE],
+                          const YV12_BUFFER_CONFIG *src,
+                          int mi_row, int mi_col,
+                          const struct scale_factors *scale,
+                          const struct scale_factors *scale_uv);
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP9_ENCODER_VP9_RD_H_