shithub: libvpx

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ref: ca67339901f21e25ce7c7c1b9c935c08a07e00eb
parent: b60b15bc1189aa512c48b94766e25e933205e31b
parent: 3461e8ce64739f8e70a9bcb8b062382e23a09cf9
author: Ronald S. Bultje <[email protected]>
date: Thu Oct 8 14:50:39 EDT 2015

Merge "vp10: skip unreachable cat6 token extrabits."

--- a/vp10/decoder/detokenize.c
+++ b/vp10/decoder/detokenize.c
@@ -163,17 +163,23 @@
         case CATEGORY5_TOKEN:
           val = CAT5_MIN_VAL + read_coeff(cat5_prob, 5, r);
           break;
-        case CATEGORY6_TOKEN:
+        case CATEGORY6_TOKEN: {
+#if CONFIG_MISC_FIXES
+          const int skip_bits = TX_SIZES - 1 - tx_size;
+#else
+          const int skip_bits = 0;
+#endif
+          const uint8_t *cat6p = cat6_prob + skip_bits;
 #if CONFIG_VP9_HIGHBITDEPTH
           switch (xd->bd) {
             case VPX_BITS_8:
-              val = CAT6_MIN_VAL + read_coeff(cat6_prob, 14, r);
+              val = CAT6_MIN_VAL + read_coeff(cat6p, 14 - skip_bits, r);
               break;
             case VPX_BITS_10:
-              val = CAT6_MIN_VAL + read_coeff(cat6_prob, 16, r);
+              val = CAT6_MIN_VAL + read_coeff(cat6p, 16 - skip_bits, r);
               break;
             case VPX_BITS_12:
-              val = CAT6_MIN_VAL + read_coeff(cat6_prob, 18, r);
+              val = CAT6_MIN_VAL + read_coeff(cat6p, 18 - skip_bits, r);
               break;
             default:
               assert(0);
@@ -180,9 +186,10 @@
               return -1;
           }
 #else
-          val = CAT6_MIN_VAL + read_coeff(cat6_prob, 14, r);
+          val = CAT6_MIN_VAL + read_coeff(cat6p, 14 - skip_bits, r);
 #endif
           break;
+        }
       }
     }
     v = (val * dqv) >> dq_shift;
--- a/vp10/encoder/bitstream.c
+++ b/vp10/encoder/bitstream.c
@@ -122,8 +122,11 @@
 
 static void pack_mb_tokens(vpx_writer *w,
                            TOKENEXTRA **tp, const TOKENEXTRA *const stop,
-                           vpx_bit_depth_t bit_depth) {
+                           vpx_bit_depth_t bit_depth, const TX_SIZE tx) {
   TOKENEXTRA *p = *tp;
+#if !CONFIG_MISC_FIXES
+  (void) tx;
+#endif
 
   while (p < stop && p->token != EOSB_TOKEN) {
     const int t = p->token;
@@ -171,6 +174,12 @@
 
     if (b->base_val) {
       const int e = p->extra, l = b->len;
+#if CONFIG_MISC_FIXES
+      int skip_bits =
+          (b->base_val == CAT6_MIN_VAL) ? TX_SIZES - 1 - tx : 0;
+#else
+      int skip_bits = 0;
+#endif
 
       if (l) {
         const unsigned char *pb = b->prob;
@@ -180,7 +189,12 @@
 
         do {
           const int bb = (v >> --n) & 1;
-          vpx_write(w, bb, pb[i >> 1]);
+          if (skip_bits) {
+            skip_bits--;
+            assert(!bb);
+          } else {
+            vpx_write(w, bb, pb[i >> 1]);
+          }
           i = b->tree[i + bb];
         } while (n);
       }
@@ -190,7 +204,7 @@
     ++p;
   }
 
-  *tp = p + (p->token == EOSB_TOKEN);
+  *tp = p;
 }
 
 static void write_segment_id(vpx_writer *w, const struct segmentation *seg,
@@ -382,6 +396,7 @@
   const VP10_COMMON *const cm = &cpi->common;
   MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
   MODE_INFO *m;
+  int plane;
 
   xd->mi = cm->mi_grid_visible + (mi_row * cm->mi_stride + mi_col);
   m = xd->mi[0];
@@ -398,8 +413,16 @@
     pack_inter_mode_mvs(cpi, m, w);
   }
 
-  assert(*tok < tok_end);
-  pack_mb_tokens(w, tok, tok_end, cm->bit_depth);
+  if (!m->mbmi.skip) {
+    assert(*tok < tok_end);
+    for (plane = 0; plane < MAX_MB_PLANE; ++plane) {
+      TX_SIZE tx = plane ? get_uv_tx_size(&m->mbmi, &xd->plane[plane])
+                         : m->mbmi.tx_size;
+      pack_mb_tokens(w, tok, tok_end, cm->bit_depth, tx);
+      assert(*tok < tok_end && (*tok)->token == EOSB_TOKEN);
+      (*tok)++;
+    }
+  }
 }
 
 static void write_partition(const VP10_COMMON *const cm,
--- a/vp10/encoder/encodeframe.c
+++ b/vp10/encoder/encodeframe.c
@@ -1356,9 +1356,6 @@
 
   if (output_enabled) {
     update_stats(&cpi->common, td);
-
-    (*tp)->token = EOSB_TOKEN;
-    (*tp)++;
   }
 }
 
--- a/vp10/encoder/tokenize.c
+++ b/vp10/encoder/tokenize.c
@@ -628,8 +628,16 @@
   }
 
   if (!dry_run) {
+    int plane;
+
     td->counts->skip[ctx][0] += skip_inc;
-    vp10_foreach_transformed_block(xd, bsize, tokenize_b, &arg);
+
+    for (plane = 0; plane < MAX_MB_PLANE; ++plane) {
+      vp10_foreach_transformed_block_in_plane(xd, bsize, plane, tokenize_b,
+                                              &arg);
+      (*t)->token = EOSB_TOKEN;
+      (*t)++;
+    }
   } else {
     vp10_foreach_transformed_block(xd, bsize, set_entropy_context_b, &arg);
   }