Add m-esr52 at 52.6.0

1 files changed, 226 insertions, 0 deletions

diff --git a/media/libvpx/vp9/decoder/vp9_detokenize.c b/media/libvpx/vp9/decoder/vp9_detokenize.c
new file mode 100644
index 000000000..3304e64b2
--- /dev/null
+++ b/media/libvpx/vp9/decoder/vp9_detokenize.c
@@ -0,0 +1,226 @@
+/*
+ *  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.
+ */
+
+#include "vpx_mem/vpx_mem.h"
+#include "vpx_ports/mem.h"
+
+#include "vp9/common/vp9_blockd.h"
+#include "vp9/common/vp9_common.h"
+#include "vp9/common/vp9_entropy.h"
+#if CONFIG_COEFFICIENT_RANGE_CHECKING
+#include "vp9/common/vp9_idct.h"
+#endif
+#include "vp9/common/vp9_scan.h"
+
+#include "vp9/decoder/vp9_detokenize.h"
+
+#define EOB_CONTEXT_NODE            0
+#define ZERO_CONTEXT_NODE           1
+#define ONE_CONTEXT_NODE            2
+#define LOW_VAL_CONTEXT_NODE        0
+#define TWO_CONTEXT_NODE            1
+#define THREE_CONTEXT_NODE          2
+#define HIGH_LOW_CONTEXT_NODE       3
+#define CAT_ONE_CONTEXT_NODE        4
+#define CAT_THREEFOUR_CONTEXT_NODE  5
+#define CAT_THREE_CONTEXT_NODE      6
+#define CAT_FIVE_CONTEXT_NODE       7
+
+#define INCREMENT_COUNT(token)                              \
+  do {                                                      \
+     if (counts)                                            \
+       ++coef_counts[band][ctx][token];                     \
+  } while (0)
+
+static INLINE int read_coeff(const vp9_prob *probs, int n, vp9_reader *r) {
+  int i, val = 0;
+  for (i = 0; i < n; ++i)
+    val = (val << 1) | vp9_read(r, probs[i]);
+  return val;
+}
+
+static int decode_coefs(const MACROBLOCKD *xd,
+                        PLANE_TYPE type,
+                        tran_low_t *dqcoeff, TX_SIZE tx_size, const int16_t *dq,
+                        int ctx, const int16_t *scan, const int16_t *nb,
+                        vp9_reader *r) {
+  FRAME_COUNTS *counts = xd->counts;
+  const int max_eob = 16 << (tx_size << 1);
+  const FRAME_CONTEXT *const fc = xd->fc;
+  const int ref = is_inter_block(&xd->mi[0]->mbmi);
+  int band, c = 0;
+  const vp9_prob (*coef_probs)[COEFF_CONTEXTS][UNCONSTRAINED_NODES] =
+      fc->coef_probs[tx_size][type][ref];
+  const vp9_prob *prob;
+  unsigned int (*coef_counts)[COEFF_CONTEXTS][UNCONSTRAINED_NODES + 1];
+  unsigned int (*eob_branch_count)[COEFF_CONTEXTS];
+  uint8_t token_cache[32 * 32];
+  const uint8_t *band_translate = get_band_translate(tx_size);
+  const int dq_shift = (tx_size == TX_32X32);
+  int v, token;
+  int16_t dqv = dq[0];
+  const uint8_t *cat1_prob;
+  const uint8_t *cat2_prob;
+  const uint8_t *cat3_prob;
+  const uint8_t *cat4_prob;
+  const uint8_t *cat5_prob;
+  const uint8_t *cat6_prob;
+
+  if (counts) {
+    coef_counts = counts->coef[tx_size][type][ref];
+    eob_branch_count = counts->eob_branch[tx_size][type][ref];
+  }
+
+#if CONFIG_VP9_HIGHBITDEPTH
+  if (xd->bd > VPX_BITS_8) {
+    if (xd->bd == VPX_BITS_10) {
+      cat1_prob = vp9_cat1_prob_high10;
+      cat2_prob = vp9_cat2_prob_high10;
+      cat3_prob = vp9_cat3_prob_high10;
+      cat4_prob = vp9_cat4_prob_high10;
+      cat5_prob = vp9_cat5_prob_high10;
+      cat6_prob = vp9_cat6_prob_high10;
+    } else {
+      cat1_prob = vp9_cat1_prob_high12;
+      cat2_prob = vp9_cat2_prob_high12;
+      cat3_prob = vp9_cat3_prob_high12;
+      cat4_prob = vp9_cat4_prob_high12;
+      cat5_prob = vp9_cat5_prob_high12;
+      cat6_prob = vp9_cat6_prob_high12;
+    }
+  } else {
+    cat1_prob = vp9_cat1_prob;
+    cat2_prob = vp9_cat2_prob;
+    cat3_prob = vp9_cat3_prob;
+    cat4_prob = vp9_cat4_prob;
+    cat5_prob = vp9_cat5_prob;
+    cat6_prob = vp9_cat6_prob;
+  }
+#else
+  cat1_prob = vp9_cat1_prob;
+  cat2_prob = vp9_cat2_prob;
+  cat3_prob = vp9_cat3_prob;
+  cat4_prob = vp9_cat4_prob;
+  cat5_prob = vp9_cat5_prob;
+  cat6_prob = vp9_cat6_prob;
+#endif
+
+  while (c < max_eob) {
+    int val = -1;
+    band = *band_translate++;
+    prob = coef_probs[band][ctx];
+    if (counts)
+      ++eob_branch_count[band][ctx];
+    if (!vp9_read(r, prob[EOB_CONTEXT_NODE])) {
+      INCREMENT_COUNT(EOB_MODEL_TOKEN);
+      break;
+    }
+
+    while (!vp9_read(r, prob[ZERO_CONTEXT_NODE])) {
+      INCREMENT_COUNT(ZERO_TOKEN);
+      dqv = dq[1];
+      token_cache[scan[c]] = 0;
+      ++c;
+      if (c >= max_eob)
+        return c;  // zero tokens at the end (no eob token)
+      ctx = get_coef_context(nb, token_cache, c);
+      band = *band_translate++;
+      prob = coef_probs[band][ctx];
+    }
+
+    if (!vp9_read(r, prob[ONE_CONTEXT_NODE])) {
+      INCREMENT_COUNT(ONE_TOKEN);
+      token = ONE_TOKEN;
+      val = 1;
+    } else {
+      INCREMENT_COUNT(TWO_TOKEN);
+      token = vp9_read_tree(r, vp9_coef_con_tree,
+                            vp9_pareto8_full[prob[PIVOT_NODE] - 1]);
+      switch (token) {
+        case TWO_TOKEN:
+        case THREE_TOKEN:
+        case FOUR_TOKEN:
+          val = token;
+          break;
+        case CATEGORY1_TOKEN:
+          val = CAT1_MIN_VAL + read_coeff(cat1_prob, 1, r);
+          break;
+        case CATEGORY2_TOKEN:
+          val = CAT2_MIN_VAL + read_coeff(cat2_prob, 2, r);
+          break;
+        case CATEGORY3_TOKEN:
+          val = CAT3_MIN_VAL + read_coeff(cat3_prob, 3, r);
+          break;
+        case CATEGORY4_TOKEN:
+          val = CAT4_MIN_VAL + read_coeff(cat4_prob, 4, r);
+          break;
+        case CATEGORY5_TOKEN:
+          val = CAT5_MIN_VAL + read_coeff(cat5_prob, 5, r);
+          break;
+        case CATEGORY6_TOKEN:
+#if CONFIG_VP9_HIGHBITDEPTH
+          switch (xd->bd) {
+            case VPX_BITS_8:
+              val = CAT6_MIN_VAL + read_coeff(cat6_prob, 14, r);
+              break;
+            case VPX_BITS_10:
+              val = CAT6_MIN_VAL + read_coeff(cat6_prob, 16, r);
+              break;
+            case VPX_BITS_12:
+              val = CAT6_MIN_VAL + read_coeff(cat6_prob, 18, r);
+              break;
+            default:
+              assert(0);
+              return -1;
+          }
+#else
+          val = CAT6_MIN_VAL + read_coeff(cat6_prob, 14, r);
+#endif
+          break;
+      }
+    }
+    v = (val * dqv) >> dq_shift;
+#if CONFIG_COEFFICIENT_RANGE_CHECKING
+#if CONFIG_VP9_HIGHBITDEPTH
+    dqcoeff[scan[c]] = highbd_check_range((vp9_read_bit(r) ? -v : v),
+                                          xd->bd);
+#else
+    dqcoeff[scan[c]] = check_range(vp9_read_bit(r) ? -v : v);
+#endif  // CONFIG_VP9_HIGHBITDEPTH
+#else
+    dqcoeff[scan[c]] = vp9_read_bit(r) ? -v : v;
+#endif  // CONFIG_COEFFICIENT_RANGE_CHECKING
+    token_cache[scan[c]] = vp9_pt_energy_class[token];
+    ++c;
+    ctx = get_coef_context(nb, token_cache, c);
+    dqv = dq[1];
+  }
+
+  return c;
+}
+
+int vp9_decode_block_tokens(MACROBLOCKD *xd,
+                            int plane, int block,
+                            BLOCK_SIZE plane_bsize, int x, int y,
+                            TX_SIZE tx_size, vp9_reader *r,
+                            int seg_id) {
+  struct macroblockd_plane *const pd = &xd->plane[plane];
+  const int16_t *const dequant = pd->seg_dequant[seg_id];
+  const int ctx = get_entropy_context(tx_size, pd->above_context + x,
+                                               pd->left_context + y);
+  const scan_order *so = get_scan(xd, tx_size, pd->plane_type, block);
+  const int eob = decode_coefs(xd, pd->plane_type,
+                               BLOCK_OFFSET(pd->dqcoeff, block), tx_size,
+                               dequant, ctx, so->scan, so->neighbors, r);
+  vp9_set_contexts(xd, pd, plane_bsize, tx_size, eob > 0, x, y);
+  return eob;
+}
+
+