Fix warnings reported by -Wshadow: Part2b: more from av1 directory

From code only part of nextgenv2 (and not aomedia)

Change-Id: I21f7478a59d525dff23747efe5238ded16b743d2
diff --git a/av1/av1_cx_iface.c b/av1/av1_cx_iface.c
index d815ca7..fae7d04 100644
--- a/av1/av1_cx_iface.c
+++ b/av1/av1_cx_iface.c
@@ -871,7 +871,6 @@
   index_sz = 2 + (mag + 1) * (ctx->pending_frame_count - 1);
   if (ctx->pending_cx_data_sz + index_sz < ctx->cx_data_sz) {
     uint8_t *x = ctx->pending_cx_data + ctx->pending_cx_data_sz;
-    int i, j;
 #ifdef TEST_SUPPLEMENTAL_SUPERFRAME_DATA
     uint8_t marker_test = 0xc0;
     int mag_test = 2;     // 1 - 4
@@ -890,6 +889,7 @@
     *x++ = marker;
     for (i = 0; i < ctx->pending_frame_count - 1; i++) {
       unsigned int this_sz;
+      int j;
 
       assert(ctx->pending_frame_sizes[i] > 0);
       this_sz = (unsigned int)ctx->pending_frame_sizes[i] - 1;
diff --git a/av1/common/entropymode.c b/av1/common/entropymode.c
index 157f00f..01bcde9 100644
--- a/av1/common/entropymode.c
+++ b/av1/common/entropymode.c
@@ -1483,7 +1483,6 @@
 
 #if CONFIG_SUPERTX
   for (i = 0; i < PARTITION_SUPERTX_CONTEXTS; ++i) {
-    int j;
     for (j = 1; j < TX_SIZES; ++j) {
       fc->supertx_prob[i][j] = av1_mode_mv_merge_probs(
           pre_fc->supertx_prob[i][j], counts->supertx[i][j]);
@@ -1577,7 +1576,6 @@
     }
     for (s = 1; s < EXT_TX_SETS_INTRA; ++s) {
       if (use_intra_ext_tx_for_txsize[s][i]) {
-        int j;
         for (j = 0; j < INTRA_MODES; ++j)
           aom_tree_merge_probs(
               av1_ext_tx_intra_tree[s], pre_fc->intra_ext_tx_prob[s][i][j],
diff --git a/av1/common/reconintra.c b/av1/common/reconintra.c
index d6bd87d..22479b6 100644
--- a/av1/common/reconintra.c
+++ b/av1/common/reconintra.c
@@ -702,7 +702,7 @@
                                          const uint8_t *above,
                                          const uint8_t *left, int mode) {
   int k, r, c;
-  int pred[33][65];
+  int preds[33][65];
   int mean, ipred;
   const TX_SIZE tx_size =
       (bs == 32) ? TX_32X32
@@ -721,20 +721,20 @@
   }
   mean = (mean + bs) / (2 * bs);
 
-  for (r = 0; r < bs; ++r) pred[r + 1][0] = (int)left[r] - mean;
+  for (r = 0; r < bs; ++r) preds[r + 1][0] = (int)left[r] - mean;
 
-  for (c = 0; c < 2 * bs + 1; ++c) pred[0][c] = (int)above[c - 1] - mean;
+  for (c = 0; c < 2 * bs + 1; ++c) preds[0][c] = (int)above[c - 1] - mean;
 
   for (r = 1; r < bs + 1; ++r)
     for (c = 1; c < 2 * bs + 1 - r; ++c) {
-      ipred = c0 * pred[r - 1][c] + c1 * pred[r][c - 1] +
-              c2 * pred[r - 1][c - 1] + c3 * pred[r - 1][c + 1];
-      pred[r][c] = ROUND_POWER_OF_TWO_SIGNED(ipred, FILTER_INTRA_PREC_BITS);
+      ipred = c0 * preds[r - 1][c] + c1 * preds[r][c - 1] +
+              c2 * preds[r - 1][c - 1] + c3 * preds[r - 1][c + 1];
+      preds[r][c] = ROUND_POWER_OF_TWO_SIGNED(ipred, FILTER_INTRA_PREC_BITS);
     }
 
   for (r = 0; r < bs; ++r) {
     for (c = 0; c < bs; ++c) {
-      ipred = pred[r + 1][c + 1] + mean;
+      ipred = preds[r + 1][c + 1] + mean;
       dst[c] = clip_pixel(ipred);
     }
     dst += stride;
@@ -997,7 +997,7 @@
                                                 const uint16_t *left, int mode,
                                                 int bd) {
   int k, r, c;
-  int pred[33][65];
+  int preds[33][65];
   int mean, ipred;
   const TX_SIZE tx_size =
       (bs == 32) ? TX_32X32
@@ -1016,20 +1016,20 @@
   }
   mean = (mean + bs) / (2 * bs);
 
-  for (r = 0; r < bs; ++r) pred[r + 1][0] = (int)left[r] - mean;
+  for (r = 0; r < bs; ++r) preds[r + 1][0] = (int)left[r] - mean;
 
-  for (c = 0; c < 2 * bs + 1; ++c) pred[0][c] = (int)above[c - 1] - mean;
+  for (c = 0; c < 2 * bs + 1; ++c) preds[0][c] = (int)above[c - 1] - mean;
 
   for (r = 1; r < bs + 1; ++r)
     for (c = 1; c < 2 * bs + 1 - r; ++c) {
-      ipred = c0 * pred[r - 1][c] + c1 * pred[r][c - 1] +
-              c2 * pred[r - 1][c - 1] + c3 * pred[r - 1][c + 1];
-      pred[r][c] = ROUND_POWER_OF_TWO_SIGNED(ipred, FILTER_INTRA_PREC_BITS);
+      ipred = c0 * preds[r - 1][c] + c1 * preds[r][c - 1] +
+              c2 * preds[r - 1][c - 1] + c3 * preds[r - 1][c + 1];
+      preds[r][c] = ROUND_POWER_OF_TWO_SIGNED(ipred, FILTER_INTRA_PREC_BITS);
     }
 
   for (r = 0; r < bs; ++r) {
     for (c = 0; c < bs; ++c) {
-      ipred = pred[r + 1][c + 1] + mean;
+      ipred = preds[r + 1][c + 1] + mean;
       dst[c] = clip_pixel_highbd(ipred, bd);
     }
     dst += stride;
@@ -1188,8 +1188,6 @@
   }
 
   if (ext_intra_mode_info->use_ext_intra_mode[plane != 0]) {
-    EXT_INTRA_MODE ext_intra_mode =
-        ext_intra_mode_info->ext_intra_mode[plane != 0];
     need_left = ext_intra_extend_modes[ext_intra_mode] & NEED_LEFT;
     need_above = ext_intra_extend_modes[ext_intra_mode] & NEED_ABOVE;
   }
@@ -1202,7 +1200,6 @@
   assert(n_bottomleft_px >= 0);
 
   if ((!need_above && n_left_px == 0) || (!need_left && n_top_px == 0)) {
-    int i;
     const int val = (n_left_px == 0) ? base + 1 : base - 1;
     for (i = 0; i < bs; ++i) {
       aom_memset16(dst, val, bs);
@@ -1351,8 +1348,6 @@
   }
 
   if (ext_intra_mode_info->use_ext_intra_mode[plane != 0]) {
-    EXT_INTRA_MODE ext_intra_mode =
-        ext_intra_mode_info->ext_intra_mode[plane != 0];
     need_left = ext_intra_extend_modes[ext_intra_mode] & NEED_LEFT;
     need_above = ext_intra_extend_modes[ext_intra_mode] & NEED_ABOVE;
   }
@@ -1373,7 +1368,6 @@
   assert(n_bottomleft_px >= 0);
 
   if ((!need_above && n_left_px == 0) || (!need_left && n_top_px == 0)) {
-    int i;
     const int val = (n_left_px == 0) ? 129 : 127;
     for (i = 0; i < bs; ++i) {
       memset(dst, val, bs);
diff --git a/av1/decoder/decodeframe.c b/av1/decoder/decodeframe.c
index 8a27947..f853866 100644
--- a/av1/decoder/decodeframe.c
+++ b/av1/decoder/decodeframe.c
@@ -1308,8 +1308,8 @@
         const BLOCK_SIZE plane_bsize =
             get_plane_block_size(AOMMAX(bsize, BLOCK_8X8), pd);
         const TX_SIZE max_tx_size = max_txsize_lookup[plane_bsize];
-        int bw = num_4x4_blocks_wide_txsize_lookup[max_tx_size];
-        int bh = num_4x4_blocks_high_txsize_lookup[max_tx_size];
+        const int bw_var_tx = num_4x4_blocks_wide_txsize_lookup[max_tx_size];
+        const int bh_var_tx = num_4x4_blocks_high_txsize_lookup[max_tx_size];
         const int step = num_4x4_blocks_txsize_lookup[max_tx_size];
         int block = 0;
 #if CONFIG_EXT_TX && CONFIG_RECT_TX
@@ -1333,8 +1333,8 @@
                                                   plane, row, col, tx_size);
         } else {
 #endif
-          for (row = 0; row < num_4x4_h; row += bh) {
-            for (col = 0; col < num_4x4_w; col += bw) {
+          for (row = 0; row < num_4x4_h; row += bh_var_tx) {
+            for (col = 0; col < num_4x4_w; col += bw_var_tx) {
               decode_reconstruct_tx(xd, r, mbmi, plane, plane_bsize, block, row,
                                     col, max_tx_size, &eobtotal);
               block += step;
diff --git a/av1/encoder/bitstream.c b/av1/encoder/bitstream.c
index 799cfe4..c361dbf 100644
--- a/av1/encoder/bitstream.c
+++ b/av1/encoder/bitstream.c
@@ -1697,9 +1697,9 @@
 #endif
         const TX_SIZE max_tx_size = max_txsize_lookup[plane_bsize];
         const BLOCK_SIZE txb_size = txsize_to_bsize[max_tx_size];
-        int bw = num_4x4_blocks_wide_lookup[txb_size];
         int block = 0;
         const int step = num_4x4_blocks_txsize_lookup[max_tx_size];
+        bw = num_4x4_blocks_wide_lookup[txb_size];
         for (row = 0; row < num_4x4_h; row += bw) {
           for (col = 0; col < num_4x4_w; col += bw) {
             pack_txb_tokens(w, tok, tok_end, xd, mbmi, plane, plane_bsize,
@@ -1711,8 +1711,8 @@
         TX_SIZE tx = plane ? get_uv_tx_size(&m->mbmi, &xd->plane[plane])
                            : m->mbmi.tx_size;
         BLOCK_SIZE txb_size = txsize_to_bsize[tx];
-        int bw = num_4x4_blocks_wide_lookup[txb_size];
-        int bh = num_4x4_blocks_high_lookup[txb_size];
+        bw = num_4x4_blocks_wide_lookup[txb_size];
+        bh = num_4x4_blocks_high_lookup[txb_size];
 
         for (row = 0; row < num_4x4_h; row += bh)
           for (col = 0; col < num_4x4_w; col += bw)
@@ -2295,7 +2295,6 @@
               for (t = 0; t < entropy_nodes_update; ++t) {
                 aom_prob newp = new_coef_probs[i][j][k][l][t];
                 aom_prob *oldp = old_coef_probs[i][j][k][l] + t;
-                const aom_prob upd = DIFF_UPDATE_PROB;
                 int s;
                 int u = 0;
 
@@ -2418,8 +2417,6 @@
 #if CONFIG_ENTROPY
       if (cm->do_subframe_update &&
           cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_BACKWARD) {
-        unsigned int eob_counts_copy[PLANE_TYPES][REF_TYPES][COEF_BANDS]
-                                    [COEFF_CONTEXTS];
         av1_coeff_count coef_counts_copy[PLANE_TYPES];
         av1_copy(eob_counts_copy, cpi->common.counts.eob_branch[tx_size]);
         av1_copy(coef_counts_copy, cpi->td.rd_counts.coef_counts[tx_size]);
diff --git a/av1/encoder/encodeframe.c b/av1/encoder/encodeframe.c
index 47c173f..297c354 100644
--- a/av1/encoder/encodeframe.c
+++ b/av1/encoder/encodeframe.c
@@ -2705,8 +2705,6 @@
 #if CONFIG_SUPERTX
       int rt_nocoef = 0;
 #endif
-      RD_SEARCH_MACROBLOCK_CONTEXT x_ctx;
-
       if ((mi_row + y_idx >= cm->mi_rows) || (mi_col + x_idx >= cm->mi_cols))
         continue;
 
@@ -3140,12 +3138,12 @@
 #else
   if (sum_rdc.rdcost < best_rdc->rdcost) {
 #endif
-    PICK_MODE_CONTEXT *ctx = &ctxs[0];
-    update_state(cpi, td, ctx, mi_row0, mi_col0, subsize0, 1);
+    PICK_MODE_CONTEXT *ctx_0 = &ctxs[0];
+    update_state(cpi, td, ctx_0, mi_row0, mi_col0, subsize0, 1);
     encode_superblock(cpi, td, tp, DRY_RUN_NORMAL, mi_row0, mi_col0, subsize0,
-                      ctx, NULL);
+                      ctx_0, NULL);
 
-    if (cpi->sf.adaptive_motion_search) load_pred_mv(x, ctx);
+    if (cpi->sf.adaptive_motion_search) load_pred_mv(x, ctx_0);
 
 #if CONFIG_SUPERTX
     rd_pick_sb_modes(cpi, tile_data, x, mi_row1, mi_col1, &this_rdc,
@@ -3181,12 +3179,12 @@
 #else
     if (sum_rdc.rdcost < best_rdc->rdcost) {
 #endif
-      PICK_MODE_CONTEXT *ctx = &ctxs[1];
-      update_state(cpi, td, ctx, mi_row1, mi_col1, subsize1, 1);
+      PICK_MODE_CONTEXT *ctx_1 = &ctxs[1];
+      update_state(cpi, td, ctx_1, mi_row1, mi_col1, subsize1, 1);
       encode_superblock(cpi, td, tp, DRY_RUN_NORMAL, mi_row1, mi_col1, subsize1,
-                        ctx, NULL);
+                        ctx_1, NULL);
 
-      if (cpi->sf.adaptive_motion_search) load_pred_mv(x, ctx);
+      if (cpi->sf.adaptive_motion_search) load_pred_mv(x, ctx_1);
 
 #if CONFIG_SUPERTX
       rd_pick_sb_modes(cpi, tile_data, x, mi_row2, mi_col2, &this_rdc,
diff --git a/av1/encoder/mbgraph.c b/av1/encoder/mbgraph.c
index c1ccb95..9bbed2b 100644
--- a/av1/encoder/mbgraph.c
+++ b/av1/encoder/mbgraph.c
@@ -110,7 +110,6 @@
   // If the current best reference mv is not centered on 0,0 then do a 0,0
   // based search as well.
   if (ref_mv->row != 0 || ref_mv->col != 0) {
-    unsigned int tmp_err;
     MV zero_ref_mv = { 0, 0 };
 
     tmp_err = do_16x16_motion_iteration(cpi, &zero_ref_mv, mb_row, mb_col);
diff --git a/av1/encoder/pickrst.c b/av1/encoder/pickrst.c
index 28bdcc3..62303b7 100644
--- a/av1/encoder/pickrst.c
+++ b/av1/encoder/pickrst.c
@@ -351,7 +351,6 @@
   memset(A, 0, sizeof(A));
   memset(B, 0, sizeof(B));
   for (i = 0; i < RESTORATION_WIN; i++) {
-    int j;
     for (j = 0; j < RESTORATION_WIN; ++j) {
       const int jj = wrap_index(j);
       A[jj] += Mc[i][j] * b[i];
@@ -399,7 +398,6 @@
   memset(A, 0, sizeof(A));
   memset(B, 0, sizeof(B));
   for (i = 0; i < RESTORATION_WIN; i++) {
-    int j;
     const int ii = wrap_index(i);
     for (j = 0; j < RESTORATION_WIN; j++) A[ii] += Mc[i][j] * a[j];
   }
diff --git a/av1/encoder/quantize.c b/av1/encoder/quantize.c
index f3de6ad..827e6d8 100644
--- a/av1/encoder/quantize.c
+++ b/av1/encoder/quantize.c
@@ -1115,9 +1115,9 @@
 #if CONFIG_NEW_QUANT
     for (dq = 0; dq < QUANT_PROFILES; dq++) {
       for (i = 0; i < COEF_BANDS; i++) {
-        const int quant = cpi->y_dequant[q][i != 0];
+        const int y_quant = cpi->y_dequant[q][i != 0];
         const int uvquant = cpi->uv_dequant[q][i != 0];
-        av1_get_dequant_val_nuq(quant, i, cpi->y_dequant_val_nuq[dq][q][i],
+        av1_get_dequant_val_nuq(y_quant, i, cpi->y_dequant_val_nuq[dq][q][i],
                                 quants->y_cuml_bins_nuq[dq][q][i], dq);
         av1_get_dequant_val_nuq(uvquant, i, cpi->uv_dequant_val_nuq[dq][q][i],
                                 quants->uv_cuml_bins_nuq[dq][q][i], dq);
diff --git a/av1/encoder/rdopt.c b/av1/encoder/rdopt.c
index 719e75a..2f9c42a 100644
--- a/av1/encoder/rdopt.c
+++ b/av1/encoder/rdopt.c
@@ -1425,7 +1425,7 @@
 #if CONFIG_EXT_TX && CONFIG_RECT_TX
   if (evaluate_rect_tx) {
     const TX_SIZE rect_tx_size = max_txsize_rect_lookup[bs];
-    const int ext_tx_set = get_ext_tx_set(rect_tx_size, bs, 1);
+    ext_tx_set = get_ext_tx_set(rect_tx_size, bs, 1);
     if (ext_tx_used_inter[ext_tx_set][tx_type]) {
       rd = txfm_yrd(cpi, x, &r, &d, &s, &sse, ref_best_rd, bs, tx_type,
                     rect_tx_size);
@@ -2499,7 +2499,7 @@
 
 static void angle_estimation(const uint8_t *src, int src_stride, int rows,
                              int cols, uint8_t *directional_mode_skip_mask) {
-  int i, r, c, index, dx, dy, temp, sn, remd, quot;
+  int i, r, c, dx, dy, temp, sn, remd, quot;
   uint64_t hist[DIRECTIONAL_MODES];
   uint64_t hist_sum = 0;
 
@@ -2507,6 +2507,7 @@
   src += src_stride;
   for (r = 1; r < rows; ++r) {
     for (c = 1; c < cols; ++c) {
+      uint8_t index;
       dx = src[c] - src[c - 1];
       dy = src[c] - src[c - src_stride];
       temp = dx * dx + dy * dy;
@@ -2529,7 +2530,7 @@
   for (i = 0; i < DIRECTIONAL_MODES; ++i) hist_sum += hist[i];
   for (i = 0; i < INTRA_MODES; ++i) {
     if (i != DC_PRED && i != TM_PRED) {
-      int index = mode_to_angle_bin[i];
+      const uint8_t index = mode_to_angle_bin[i];
       uint64_t score = 2 * hist[index];
       int weight = 2;
       if (index > 0) {
@@ -2550,7 +2551,7 @@
 static void highbd_angle_estimation(const uint8_t *src8, int src_stride,
                                     int rows, int cols,
                                     uint8_t *directional_mode_skip_mask) {
-  int i, r, c, index, dx, dy, temp, sn, remd, quot;
+  int i, r, c, dx, dy, temp, sn, remd, quot;
   uint64_t hist[DIRECTIONAL_MODES];
   uint64_t hist_sum = 0;
   uint16_t *src = CONVERT_TO_SHORTPTR(src8);
@@ -2559,6 +2560,7 @@
   src += src_stride;
   for (r = 1; r < rows; ++r) {
     for (c = 1; c < cols; ++c) {
+      uint8_t index;
       dx = src[c] - src[c - 1];
       dy = src[c] - src[c - src_stride];
       temp = dx * dx + dy * dy;
@@ -2581,7 +2583,7 @@
   for (i = 0; i < DIRECTIONAL_MODES; ++i) hist_sum += hist[i];
   for (i = 0; i < INTRA_MODES; ++i) {
     if (i != DC_PRED && i != TM_PRED) {
-      int index = mode_to_angle_bin[i];
+      const uint8_t index = mode_to_angle_bin[i];
       uint64_t score = 2 * hist[index];
       int weight = 2;
       if (index > 0) {
@@ -3111,7 +3113,6 @@
     BLOCK_SIZE bsize = txsize_to_bsize[tx_size];
     int bsl = b_height_log2_lookup[bsize];
     int sub_step = num_4x4_blocks_txsize_lookup[tx_size - 1];
-    int i;
     int this_rate;
     int64_t this_dist;
     int64_t this_bsse;
@@ -3250,7 +3251,7 @@
 #if CONFIG_EXT_TX && CONFIG_RECT_TX
   if (is_rect_tx_allowed(xd, mbmi)) {
     int rate_rect_tx, skippable_rect_tx = 0;
-    int64_t dist_rect_tx, sse_rect_tx, rd, rd_rect_tx;
+    int64_t dist_rect_tx, sse_rect_tx, rd_rect_tx;
     int tx_size_cat = inter_tx_size_cat_lookup[bsize];
     TX_SIZE tx_size = max_txsize_rect_lookup[bsize];
     TX_SIZE var_tx_size = mbmi->tx_size;
@@ -3531,7 +3532,6 @@
 #endif  // CONFIG_EXT_TX && CONFIG_RECT_TX
 
   if (is_inter_block(mbmi) && is_cost_valid) {
-    int plane;
     for (plane = 1; plane < MAX_MB_PLANE; ++plane)
       av1_subtract_plane(x, bsize, plane);
   }
@@ -6099,6 +6099,7 @@
 
   const YV12_BUFFER_CONFIG *scaled_ref_frame =
       av1_get_scaled_ref_frame(cpi, ref);
+  int i;
 
   MV pred_mv[3];
   pred_mv[0] = x->mbmi_ext->ref_mvs[ref][0].as_mv;
@@ -6110,7 +6111,6 @@
 #endif
 
   if (scaled_ref_frame) {
-    int i;
     // Swap out the reference frame for a version that's been scaled to
     // match the resolution of the current frame, allowing the existing
     // motion search code to be used without additional modifications.
@@ -6152,7 +6152,6 @@
 
     // prev_mv_sad is not setup for dynamically scaled frames.
     if (cpi->oxcf.resize_mode != RESIZE_DYNAMIC) {
-      int i;
       for (i = LAST_FRAME; i <= ALTREF_FRAME && cm->show_frame; ++i) {
         if ((x->pred_mv_sad[ref] >> 3) > x->pred_mv_sad[i]) {
           x->pred_mv[ref].row = 0;
@@ -6160,9 +6159,9 @@
           tmp_mv->as_int = INVALID_MV;
 
           if (scaled_ref_frame) {
-            int i;
-            for (i = 0; i < MAX_MB_PLANE; ++i)
-              xd->plane[i].pre[ref_idx] = backup_yv12[i];
+            int j;
+            for (j = 0; j < MAX_MB_PLANE; ++j)
+              xd->plane[j].pre[ref_idx] = backup_yv12[j];
           }
           return;
         }
@@ -6201,7 +6200,6 @@
     x->pred_mv[ref] = tmp_mv->as_mv;
 
   if (scaled_ref_frame) {
-    int i;
     for (i = 0; i < MAX_MB_PLANE; i++)
       xd->plane[i].pre[ref_idx] = backup_yv12[i];
   }
@@ -7121,21 +7119,21 @@
 #endif  // CONFIG_MOTION_VAR
 
   if (is_comp_pred && is_interinter_wedge_used(bsize)) {
-    int rate_sum, rs;
+    int rate_sum, rs2;
     int64_t dist_sum;
     int64_t best_rd_nowedge = INT64_MAX;
     int64_t best_rd_wedge = INT64_MAX;
     int tmp_skip_txfm_sb;
     int64_t tmp_skip_sse_sb;
 
-    rs = av1_cost_bit(cm->fc->wedge_interinter_prob[bsize], 0);
+    rs2 = av1_cost_bit(cm->fc->wedge_interinter_prob[bsize], 0);
     mbmi->use_wedge_interinter = 0;
     av1_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
     av1_subtract_plane(x, bsize, 0);
     rd = estimate_yrd_for_sb(cpi, bsize, x, &rate_sum, &dist_sum,
                              &tmp_skip_txfm_sb, &tmp_skip_sse_sb, INT64_MAX);
     if (rd != INT64_MAX)
-      rd = RDCOST(x->rdmult, x->rddiv, rs + rate_mv + rate_sum, dist_sum);
+      rd = RDCOST(x->rdmult, x->rddiv, rs2 + rate_mv + rate_sum, dist_sum);
     best_rd_nowedge = rd;
 
     // Disbale wedge search if source variance is small
@@ -7148,8 +7146,8 @@
       int strides[1] = { bw };
 
       mbmi->use_wedge_interinter = 1;
-      rs = av1_cost_literal(get_interinter_wedge_bits(bsize)) +
-           av1_cost_bit(cm->fc->wedge_interinter_prob[bsize], 1);
+      rs2 = av1_cost_literal(get_interinter_wedge_bits(bsize)) +
+            av1_cost_bit(cm->fc->wedge_interinter_prob[bsize], 1);
 
       av1_build_inter_predictors_for_planes_single_buf(
           xd, bsize, 0, 0, mi_row, mi_col, 0, preds0, strides);
@@ -7158,7 +7156,7 @@
 
       // Choose the best wedge
       best_rd_wedge = pick_interinter_wedge(cpi, x, bsize, pred0, pred1);
-      best_rd_wedge += RDCOST(x->rdmult, x->rddiv, rs + rate_mv, 0);
+      best_rd_wedge += RDCOST(x->rdmult, x->rddiv, rs2 + rate_mv, 0);
 
       if (have_newmv_in_inter_mode(this_mode)) {
         int_mv tmp_mv[2];
@@ -7189,7 +7187,8 @@
         av1_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
         model_rd_for_sb(cpi, bsize, x, xd, 0, 0, &rate_sum, &dist_sum,
                         &tmp_skip_txfm_sb, &tmp_skip_sse_sb);
-        rd = RDCOST(x->rdmult, x->rddiv, rs + tmp_rate_mv + rate_sum, dist_sum);
+        rd =
+            RDCOST(x->rdmult, x->rddiv, rs2 + tmp_rate_mv + rate_sum, dist_sum);
         if (rd < best_rd_wedge) {
           best_rd_wedge = rd;
         } else {
@@ -7204,7 +7203,7 @@
             estimate_yrd_for_sb(cpi, bsize, x, &rate_sum, &dist_sum,
                                 &tmp_skip_txfm_sb, &tmp_skip_sse_sb, INT64_MAX);
         if (rd != INT64_MAX)
-          rd = RDCOST(x->rdmult, x->rddiv, rs + tmp_rate_mv + rate_sum,
+          rd = RDCOST(x->rdmult, x->rddiv, rs2 + tmp_rate_mv + rate_sum,
                       dist_sum);
         best_rd_wedge = rd;
 
@@ -7229,7 +7228,7 @@
             estimate_yrd_for_sb(cpi, bsize, x, &rate_sum, &dist_sum,
                                 &tmp_skip_txfm_sb, &tmp_skip_sse_sb, INT64_MAX);
         if (rd != INT64_MAX)
-          rd = RDCOST(x->rdmult, x->rddiv, rs + rate_mv + rate_sum, dist_sum);
+          rd = RDCOST(x->rdmult, x->rddiv, rs2 + rate_mv + rate_sum, dist_sum);
         best_rd_wedge = rd;
         if (best_rd_wedge < best_rd_nowedge) {
           mbmi->use_wedge_interinter = 1;
@@ -7477,7 +7476,6 @@
   for (mbmi->motion_mode = SIMPLE_TRANSLATION;
        mbmi->motion_mode < (allow_motvar ? MOTION_MODES : 1);
        mbmi->motion_mode++) {
-    int64_t tmp_rd;
 #if CONFIG_EXT_INTER
     int tmp_rate2 = mbmi->motion_mode != SIMPLE_TRANSLATION ? rate2_bmc_nocoeff
                                                             : rate2_nocoeff;
@@ -8215,8 +8213,8 @@
   unsigned int best_pred_sse = UINT_MAX;
   PREDICTION_MODE best_intra_mode = DC_PRED;
   int rate_uv_intra[TX_SIZES], rate_uv_tokenonly[TX_SIZES];
-  int64_t dist_uv[TX_SIZES];
-  int skip_uv[TX_SIZES];
+  int64_t dist_uvs[TX_SIZES];
+  int skip_uvs[TX_SIZES];
   PREDICTION_MODE mode_uv[TX_SIZES];
 #if CONFIG_PALETTE
   PALETTE_MODE_INFO pmi_uv[TX_SIZES];
@@ -8536,7 +8534,6 @@
     int rate2 = 0, rate_y = 0, rate_uv = 0;
     int64_t distortion2 = 0, distortion_y = 0, distortion_uv = 0;
     int skippable = 0;
-    int i;
     int this_skip2 = 0;
     int64_t total_sse = INT64_MAX;
 #if CONFIG_REF_MV
@@ -8767,8 +8764,8 @@
                               [pd->subsampling_y];
       if (rate_uv_intra[uv_tx] == INT_MAX) {
         choose_intra_uv_mode(cpi, x, ctx, bsize, uv_tx, &rate_uv_intra[uv_tx],
-                             &rate_uv_tokenonly[uv_tx], &dist_uv[uv_tx],
-                             &skip_uv[uv_tx], &mode_uv[uv_tx]);
+                             &rate_uv_tokenonly[uv_tx], &dist_uvs[uv_tx],
+                             &skip_uvs[uv_tx], &mode_uv[uv_tx]);
 #if CONFIG_PALETTE
         if (cm->allow_screen_content_tools) pmi_uv[uv_tx] = *pmi;
 #endif  // CONFIG_PALETTE
@@ -8780,8 +8777,8 @@
       }
 
       rate_uv = rate_uv_tokenonly[uv_tx];
-      distortion_uv = dist_uv[uv_tx];
-      skippable = skippable && skip_uv[uv_tx];
+      distortion_uv = dist_uvs[uv_tx];
+      skippable = skippable && skip_uvs[uv_tx];
       mbmi->uv_mode = mode_uv[uv_tx];
 #if CONFIG_PALETTE
       if (cm->allow_screen_content_tools) {
@@ -8999,7 +8996,6 @@
                                                   };
             int dummy_single_skippable[MB_MODE_COUNT]
                                       [TOTAL_REFS_PER_FRAME] = { { 0 } };
-            int dummy_disable_skip = 0;
 #if CONFIG_EXT_INTER
             int_mv dummy_single_newmvs[2][TOTAL_REFS_PER_FRAME] = { { { 0 } },
                                                                     { { 0 } } };
@@ -9418,8 +9414,8 @@
                             [xd->plane[1].subsampling_y];
     if (rate_uv_intra[uv_tx] == INT_MAX) {
       choose_intra_uv_mode(cpi, x, ctx, bsize, uv_tx, &rate_uv_intra[uv_tx],
-                           &rate_uv_tokenonly[uv_tx], &dist_uv[uv_tx],
-                           &skip_uv[uv_tx], &mode_uv[uv_tx]);
+                           &rate_uv_tokenonly[uv_tx], &dist_uvs[uv_tx],
+                           &skip_uvs[uv_tx], &mode_uv[uv_tx]);
       pmi_uv[uv_tx] = *pmi;
 #if CONFIG_EXT_INTRA
       ext_intra_mode_info_uv[uv_tx] = mbmi->ext_intra_mode_info;
@@ -9441,8 +9437,8 @@
           ext_intra_mode_info_uv[uv_tx].ext_intra_mode[1];
     }
 #endif  // CONFIG_EXT_INTRA
-    skippable = skippable && skip_uv[uv_tx];
-    distortion2 = distortion_y + dist_uv[uv_tx];
+    skippable = skippable && skip_uvs[uv_tx];
+    distortion2 = distortion_y + dist_uvs[uv_tx];
     rate2 = rate_y + rate_overhead + rate_uv_intra[uv_tx];
     rate2 += ref_costs_single[INTRA_FRAME];
 
@@ -9487,8 +9483,8 @@
       !dc_skipped && best_mode_index >= 0 &&
       best_intra_rd < (best_rd + (best_rd >> 3))) {
     pick_ext_intra_interframe(
-        cpi, x, ctx, bsize, rate_uv_intra, rate_uv_tokenonly, dist_uv, skip_uv,
-        mode_uv, ext_intra_mode_info_uv, uv_angle_delta,
+        cpi, x, ctx, bsize, rate_uv_intra, rate_uv_tokenonly, dist_uvs,
+        skip_uvs, mode_uv, ext_intra_mode_info_uv, uv_angle_delta,
 #if CONFIG_PALETTE
         pmi_uv, palette_ctx,
 #endif  // CONFIG_PALETTE
@@ -9526,7 +9522,6 @@
 #endif  // CONFIG_GLOBAL_MOTION
 #if CONFIG_REF_MV
     if (!comp_pred_mode) {
-      int i;
       int ref_set = (mbmi_ext->ref_mv_count[rf_type] >= 2)
                         ? AOMMIN(2, mbmi_ext->ref_mv_count[rf_type] - 2)
                         : INT_MAX;
@@ -10011,7 +10006,6 @@
     int rate2 = 0, rate_y = 0, rate_uv = 0;
     int64_t distortion2 = 0, distortion_y = 0, distortion_uv = 0;
     int skippable = 0;
-    int i;
     int this_skip2 = 0;
     int64_t total_sse = INT_MAX;
 
diff --git a/av1/encoder/tokenize.c b/av1/encoder/tokenize.c
index 4e16d92..e95e52b 100644
--- a/av1/encoder/tokenize.c
+++ b/av1/encoder/tokenize.c
@@ -613,8 +613,7 @@
             : mbmi->inter_tx_size[tx_row][tx_col];
 
   if (tx_size == plane_tx_size) {
-    const struct macroblockd_plane *const pd = &xd->plane[plane];
-    BLOCK_SIZE plane_bsize = get_plane_block_size(mbmi->sb_type, pd);
+    plane_bsize = get_plane_block_size(mbmi->sb_type, pd);
     if (!dry_run)
       tokenize_b(plane, block, blk_row, blk_col, plane_bsize, tx_size, arg);
     else if (dry_run == DRY_RUN_NORMAL)
diff --git a/av1/encoder/variance_tree.h b/av1/encoder/variance_tree.h
index 728d7f4..6397084 100644
--- a/av1/encoder/variance_tree.h
+++ b/av1/encoder/variance_tree.h
@@ -31,12 +31,12 @@
   int64_t sum_error;
   int log2_count;
   int variance;
-} var;
+} VAR;
 
 typedef struct {
-  var none;
-  var horz[2];
-  var vert[2];
+  VAR none;
+  VAR horz[2];
+  VAR vert[2];
 } partition_variance;
 
 typedef struct VAR_TREE {
@@ -59,7 +59,7 @@
 void av1_free_var_tree(struct ThreadData *td);
 
 // Set variance values given sum square error, sum error, count.
-static INLINE void fill_variance(int64_t s2, int64_t s, int c, var *v) {
+static INLINE void fill_variance(int64_t s2, int64_t s, int c, VAR *v) {
   v->sum_square_error = s2;
   v->sum_error = s;
   v->log2_count = c;
@@ -69,7 +69,7 @@
             v->log2_count);
 }
 
-static INLINE void sum_2_variances(const var *a, const var *b, var *r) {
+static INLINE void sum_2_variances(const VAR *a, const VAR *b, VAR *r) {
   assert(a->log2_count == b->log2_count);
   fill_variance(a->sum_square_error + b->sum_square_error,
                 a->sum_error + b->sum_error, a->log2_count + 1, r);