libvpx: Add VP9 decoder.

source/libvpx/vp9/encoder/vp9_block.h

+/*
+ *  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_BLOCK_H_
+#define VP9_ENCODER_VP9_BLOCK_H_
+
+#include "vp9/common/vp9_onyx.h"
+#include "vp9/common/vp9_entropymv.h"
+#include "vp9/common/vp9_entropy.h"
+#include "vpx_ports/mem.h"
+#include "vp9/common/vp9_onyxc_int.h"
+
+// motion search site
+typedef struct {
+  MV mv;
+  int offset;
+} search_site;
+
+typedef struct block {
+  // 16 Y blocks, 4 U blocks, 4 V blocks each with 16 entries
+  short *src_diff;
+  short *coeff;
+
+  // 16 Y blocks, 4 U blocks, 4 V blocks each with 16 entries
+  short *quant;
+  short *quant_fast;      // fast quant deprecated for now
+  unsigned char *quant_shift;
+  short *zbin;
+  short *zbin_8x8;
+  short *zbin_16x16;
+  short *zrun_zbin_boost;
+  short *zrun_zbin_boost_8x8;
+  short *zrun_zbin_boost_16x16;
+  short *round;
+
+  // Zbin Over Quant value
+  short zbin_extra;
+
+  unsigned char **base_src;
+  unsigned char **base_second_src;
+  int src;
+  int src_stride;
+
+  int eob_max_offset;
+  int eob_max_offset_8x8;
+  int eob_max_offset_16x16;
+} BLOCK;
+
+typedef struct {
+  int count;
+  struct {
+    B_PREDICTION_MODE mode;
+    int_mv mv;
+    int_mv second_mv;
+  } bmi[16];
+} PARTITION_INFO;
+
+// Structure to hold snapshot of coding context during the mode picking process
+// TODO Do we need all of these?
+typedef struct {
+  MODE_INFO mic;
+  PARTITION_INFO partition_info;
+  int_mv best_ref_mv;
+  int_mv second_best_ref_mv;
+  int_mv ref_mvs[MAX_REF_FRAMES][MAX_MV_REFS];
+  int rate;
+  int distortion;
+  int64_t intra_error;
+  int best_mode_index;
+  int rddiv;
+  int rdmult;
+  int hybrid_pred_diff;
+  int comp_pred_diff;
+  int single_pred_diff;
+  int64_t txfm_rd_diff[NB_TXFM_MODES];
+} PICK_MODE_CONTEXT;
+
+typedef struct macroblock {
+  DECLARE_ALIGNED(16, short, src_diff[400]);  // 16x16 Y 8x8 U 8x8 V 4x4 2nd Y
+  DECLARE_ALIGNED(16, short, coeff[400]);     // 16x16 Y 8x8 U 8x8 V 4x4 2nd Y
+#if !CONFIG_SUPERBLOCKS
+  DECLARE_ALIGNED(16, unsigned char, thismb[256]);    // 16x16 Y
+
+  unsigned char *thismb_ptr;
+#endif
+  // 16 Y blocks, 4 U blocks, 4 V blocks,
+  // 1 DC 2nd order block each with 16 entries
+  BLOCK block[25];
+
+  YV12_BUFFER_CONFIG src;
+
+  MACROBLOCKD e_mbd;
+  PARTITION_INFO *partition_info; /* work pointer */
+  PARTITION_INFO *pi;   /* Corresponds to upper left visible macroblock */
+  PARTITION_INFO *pip;  /* Base of allocated array */
+
+  search_site *ss;
+  int ss_count;
+  int searches_per_step;
+
+  int errorperbit;
+  int sadperbit16;
+  int sadperbit4;
+  int rddiv;
+  int rdmult;
+  unsigned int *mb_activity_ptr;
+  int *mb_norm_activity_ptr;
+  signed int act_zbin_adj;
+
+  int nmvjointcost[MV_JOINTS];
+  int nmvcosts[2][MV_VALS];
+  int *nmvcost[2];
+  int nmvcosts_hp[2][MV_VALS];
+  int *nmvcost_hp[2];
+  int **mvcost;
+
+  int nmvjointsadcost[MV_JOINTS];
+  int nmvsadcosts[2][MV_VALS];
+  int *nmvsadcost[2];
+  int nmvsadcosts_hp[2][MV_VALS];
+  int *nmvsadcost_hp[2];
+  int **mvsadcost;
+
+  int mbmode_cost[2][MB_MODE_COUNT];
+  int intra_uv_mode_cost[2][MB_MODE_COUNT];
+  int bmode_costs[VP9_KF_BINTRAMODES][VP9_KF_BINTRAMODES][VP9_KF_BINTRAMODES];
+  int i8x8_mode_costs[MB_MODE_COUNT];
+  int inter_bmode_costs[B_MODE_COUNT];
+  int switchable_interp_costs[VP9_SWITCHABLE_FILTERS + 1]
+                             [VP9_SWITCHABLE_FILTERS];
+
+  // These define limits to motion vector components to prevent them
+  // from extending outside the UMV borders
+  int mv_col_min;
+  int mv_col_max;
+  int mv_row_min;
+  int mv_row_max;
+
+  int skip;
+
+  int encode_breakout;
+
+  // char * gf_active_ptr;
+  signed char *gf_active_ptr;
+
+  unsigned char *active_ptr;
+
+  unsigned int token_costs[TX_SIZE_MAX][BLOCK_TYPES][COEF_BANDS]
+    [PREV_COEF_CONTEXTS][MAX_ENTROPY_TOKENS];
+  unsigned int hybrid_token_costs[TX_SIZE_MAX][BLOCK_TYPES][COEF_BANDS]
+    [PREV_COEF_CONTEXTS][MAX_ENTROPY_TOKENS];
+
+  int optimize;
+
+  // Structure to hold context for each of the 4 MBs within a SB:
+  // when encoded as 4 independent MBs:
+  PICK_MODE_CONTEXT mb_context[4];
+#if CONFIG_SUPERBLOCKS
+  // when 4 MBs share coding parameters:
+  PICK_MODE_CONTEXT sb_context[4];
+#endif
+
+  void (*vp9_short_fdct4x4)(short *input, short *output, int pitch);
+  void (*vp9_short_fdct8x4)(short *input, short *output, int pitch);
+  void (*short_walsh4x4)(short *input, short *output, int pitch);
+  void (*quantize_b_4x4)(BLOCK *b, BLOCKD *d);
+  void (*quantize_b_4x4_pair)(BLOCK *b1, BLOCK *b2, BLOCKD *d0, BLOCKD *d1);
+  void (*vp9_short_fdct8x8)(short *input, short *output, int pitch);
+  void (*vp9_short_fdct16x16)(short *input, short *output, int pitch);
+  void (*short_fhaar2x2)(short *input, short *output, int pitch);
+  void (*quantize_b_16x16)(BLOCK *b, BLOCKD *d);
+  void (*quantize_b_8x8)(BLOCK *b, BLOCKD *d);
+  void (*quantize_b_2x2)(BLOCK *b, BLOCKD *d);
+
+} MACROBLOCK;
+
+
+#endif