Combine compile flags for skip mode improve

As described in #227, there are two compile time flags for skip mode improvement. In this MR, these two compile time flags are combined into one compile time flag CONFIG_SKIP_MODE_ENHANCEMENT.
diff --git a/av1/common/blockd.h b/av1/common/blockd.h
index bd2449a..a0a899d 100644
--- a/av1/common/blockd.h
+++ b/av1/common/blockd.h
@@ -1735,7 +1735,7 @@
 } WARP_PARAM_BANK;
 
 #endif  // CONFIG_WARP_REF_LIST
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
 /*! \brief Variables related to mvp list of skip mode.*/
 typedef struct {
   //! MV list
@@ -1753,7 +1753,7 @@
   //! Global mvs
   int_mv global_mvs[2];
 } SKIP_MODE_MVP_LIST;
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
 /*! \brief Variables related to current coding block.
  *
@@ -2073,9 +2073,9 @@
 /*!
  * skip_mvp_candidate_list is the MVP list for skip mode.
  */
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   SKIP_MODE_MVP_LIST skip_mvp_candidate_list;
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
 #if CONFIG_WARP_REF_LIST
   /*!
diff --git a/av1/common/entropy.c b/av1/common/entropy.c
index 3bf9782..111ee13 100644
--- a/av1/common/entropy.c
+++ b/av1/common/entropy.c
@@ -161,9 +161,9 @@
   RESET_CDF_COUNTER(fc->drl_cdf[0], 2);
   RESET_CDF_COUNTER(fc->drl_cdf[1], 2);
   RESET_CDF_COUNTER(fc->drl_cdf[2], 2);
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   RESET_CDF_COUNTER(fc->skip_drl_cdf, 2);
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_OPTFLOW_REFINEMENT
   RESET_CDF_COUNTER(fc->use_optflow_cdf, 2);
   RESET_CDF_COUNTER(fc->inter_compound_mode_cdf, INTER_COMPOUND_REF_TYPES);
diff --git a/av1/common/entropymode.c b/av1/common/entropymode.c
index cff5831..04d839c 100644
--- a/av1/common/entropymode.c
+++ b/av1/common/entropymode.c
@@ -1688,13 +1688,13 @@
     };
 #endif  // CONFIG_IMPROVED_JMVD
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
 static const aom_cdf_prob default_skip_drl_cdf[3][CDF_SIZE(2)] = {
   { AOM_CDF2(24394) },
   { AOM_CDF2(22637) },
   { AOM_CDF2(21474) },
 };
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
 #if CONFIG_C076_INTER_MOD_CTX
 #if CONFIG_OPTFLOW_REFINEMENT
@@ -3307,9 +3307,9 @@
   av1_copy(fc->motion_mode_cdf, default_motion_mode_cdf);
   av1_copy(fc->obmc_cdf, default_obmc_cdf);
 #endif  // CONFIG_EXTENDED_WARP_PREDICTION
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   av1_copy(fc->skip_drl_cdf, default_skip_drl_cdf);
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_BAWP
   av1_copy(fc->bawp_cdf, default_bawp_cdf);
 #endif  // CONFIG_BAWP
diff --git a/av1/common/entropymode.h b/av1/common/entropymode.h
index 0ec8e93..b72678e 100644
--- a/av1/common/entropymode.h
+++ b/av1/common/entropymode.h
@@ -197,9 +197,9 @@
 #endif  // CONFIG_WARPMV
 
   aom_cdf_prob drl_cdf[3][DRL_MODE_CONTEXTS][CDF_SIZE(2)];
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   aom_cdf_prob skip_drl_cdf[3][CDF_SIZE(2)];
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
 #if CONFIG_REFINEMV
   aom_cdf_prob refinemv_flag_cdf[NUM_REFINEMV_CTX]
diff --git a/av1/common/mvref_common.c b/av1/common/mvref_common.c
index 7ac8581..6a94736 100644
--- a/av1/common/mvref_common.c
+++ b/av1/common/mvref_common.c
@@ -194,18 +194,18 @@
     const MV_REFERENCE_FRAME rf[2], CANDIDATE_MV *ref_mv_stack,
     uint16_t *ref_mv_weight, uint8_t *refmv_count,
     CANDIDATE_MV *derived_mv_stack, uint8_t derived_mv_count,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     const MB_MODE_INFO *mbmi, MV_REFERENCE_FRAME *ref_frame_idx0,
     MV_REFERENCE_FRAME *ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
     const int max_ref_mv_count) {
   int index = 0;
   int derived_idx = 0;
 
   if (rf[1] == NONE_FRAME) {
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     assert(!mbmi->skip_mode);
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
     for (derived_idx = 0; derived_idx < derived_mv_count; ++derived_idx) {
       for (index = 0; index < *refmv_count; ++index) {
@@ -236,10 +236,10 @@
              derived_mv_stack[derived_idx].this_mv.as_int) &&
             (ref_mv_stack[index].comp_mv.as_int ==
              derived_mv_stack[derived_idx].comp_mv.as_int)) {
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
           if (!mbmi->skip_mode || (ref_frame_idx0[index] == rf[0] &&
                                    ref_frame_idx1[index] == rf[1]))
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
             break;
         }
       }
@@ -255,12 +255,12 @@
 #if CONFIG_CWP
         ref_mv_stack[index].cwp_idx = derived_mv_stack[derived_idx].cwp_idx;
 #endif  // CONFIG_CWP
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         if (mbmi->skip_mode) {
           ref_frame_idx0[index] = rf[0];
           ref_frame_idx1[index] = rf[1];
         }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
         ref_mv_weight[index] = REF_CAT_LEVEL;
         ++(*refmv_count);
       }
@@ -396,11 +396,11 @@
     uint8_t *ref_match_count, uint8_t *newmv_count, CANDIDATE_MV *ref_mv_stack,
     uint16_t *ref_mv_weight, int_mv *gm_mv_candidates,
     const WarpedMotionParams *gm_params,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     const MB_MODE_INFO *mbmi,
     MV_REFERENCE_FRAME ref_frame_idx0[MAX_REF_MV_STACK_SIZE],
     MV_REFERENCE_FRAME ref_frame_idx1[MAX_REF_MV_STACK_SIZE],
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
     const AV1_COMMON *cm, int add_more_mvs, SINGLE_MV_CANDIDATE *single_mv,
     uint8_t *single_mv_count, CANDIDATE_MV *derived_mv_stack,
@@ -434,7 +434,7 @@
   const TIP *tip_ref = &cm->tip_ref;
 #endif  // CONFIG_TIP
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   if (mbmi->skip_mode) {
 #if CONFIG_TIP
     if (!is_tip_ref_frame(candidate->ref_frame[0]) &&
@@ -482,12 +482,12 @@
     }
     return;
   }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
   if (rf[1] == NONE_FRAME) {
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     assert(!mbmi->skip_mode);
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
     // single reference frame
     for (ref = 0; ref < 2; ++ref) {
@@ -624,9 +624,9 @@
       // compound reference frame
       if (candidate->ref_frame[0] == rf[0] &&
           candidate->ref_frame[1] == rf[1]) {
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         if (mbmi->skip_mode) return;
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
         int_mv this_refmv[2];
 
@@ -843,9 +843,9 @@
     CANDIDATE_MV *ref_mv_stack, uint16_t *ref_mv_weight, uint8_t *refmv_count,
     uint8_t *ref_match_count, uint8_t *newmv_count, int_mv *gm_mv_candidates,
     int max_row_offset,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     MV_REFERENCE_FRAME *ref_frame_idx0, MV_REFERENCE_FRAME *ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
     int add_more_mvs, SINGLE_MV_CANDIDATE *single_mv, uint8_t *single_mv_count,
     CANDIDATE_MV *derived_mv_stack, uint16_t *derived_mv_weight,
@@ -950,9 +950,9 @@
 #endif  // CONFIG_C071_SUBBLK_WARPMV
         rf, refmv_count, ref_match_count, newmv_count, ref_mv_stack,
         ref_mv_weight, gm_mv_candidates, cm->global_motion,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         xd->mi[0], ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
         cm, add_more_mvs, single_mv, single_mv_count, derived_mv_stack,
         derived_mv_weight, derived_mv_count,
@@ -1009,9 +1009,9 @@
     const MV_REFERENCE_FRAME rf[2], int col_offset, CANDIDATE_MV *ref_mv_stack,
     uint16_t *ref_mv_weight, uint8_t *refmv_count, uint8_t *ref_match_count,
     uint8_t *newmv_count, int_mv *gm_mv_candidates, int max_col_offset,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     MV_REFERENCE_FRAME *ref_frame_idx0, MV_REFERENCE_FRAME *ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
     int add_more_mvs, SINGLE_MV_CANDIDATE *single_mv, uint8_t *single_mv_count,
     CANDIDATE_MV *derived_mv_stack, uint16_t *derived_mv_weight,
@@ -1113,9 +1113,9 @@
 #endif  // CONFIG_C071_SUBBLK_WARPMV
         rf, refmv_count, ref_match_count, newmv_count, ref_mv_stack,
         ref_mv_weight, gm_mv_candidates, cm->global_motion,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         xd->mi[0], ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
         cm, add_more_mvs, single_mv, single_mv_count, derived_mv_stack,
         derived_mv_weight, derived_mv_count,
@@ -1160,9 +1160,9 @@
     const int mi_col, const MV_REFERENCE_FRAME rf[2], int row_offset,
     int col_offset, CANDIDATE_MV *ref_mv_stack, uint16_t *ref_mv_weight,
     uint8_t *ref_match_count, uint8_t *newmv_count, int_mv *gm_mv_candidates,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     MV_REFERENCE_FRAME *ref_frame_idx0, MV_REFERENCE_FRAME *ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
     int add_more_mvs, SINGLE_MV_CANDIDATE *single_mv, uint8_t *single_mv_count,
     CANDIDATE_MV *derived_mv_stack, uint16_t *derived_mv_weight,
@@ -1224,9 +1224,9 @@
 #endif  // CONFIG_C071_SUBBLK_WARPMV
         rf, refmv_count, ref_match_count, newmv_count, ref_mv_stack,
         ref_mv_weight, gm_mv_candidates, cm->global_motion,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         xd->mi[0], ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
         cm, add_more_mvs, single_mv, single_mv_count, derived_mv_stack,
         derived_mv_weight, derived_mv_count,
@@ -1458,11 +1458,11 @@
 #endif  // CONFIG_MVP_IMPROVEMENT
                           CANDIDATE_MV ref_mv_stack[MAX_REF_MV_STACK_SIZE],
                           uint16_t ref_mv_weight[MAX_REF_MV_STACK_SIZE]
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                           ,
                           MV_REFERENCE_FRAME *ref_frame_idx0,
                           MV_REFERENCE_FRAME *ref_frame_idx1
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if !CONFIG_C076_INTER_MOD_CTX
                           ,
                           int16_t *mode_context
@@ -1543,9 +1543,9 @@
     }
 #endif  // !CONFIG_C076_INTER_MOD_CTX
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     assert(!xd->mi[0]->skip_mode);
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
     for (idx = 0; idx < *refmv_count; ++idx)
       if (this_refmv.as_int == ref_mv_stack[idx].this_mv.as_int) break;
@@ -1599,7 +1599,7 @@
     }
 #endif  // !CONFIG_C076_INTER_MOD_CTX
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     if (xd->mi[0]->skip_mode) {
       for (idx = 0; idx < *refmv_count; ++idx) {
         if (this_refmv.as_int == ref_mv_stack[idx].this_mv.as_int &&
@@ -1625,7 +1625,7 @@
 #endif  // CONFIG_MVP_IMPROVEMENT
       }
     } else {
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
       for (idx = 0; idx < *refmv_count; ++idx) {
         if (this_refmv.as_int == ref_mv_stack[idx].this_mv.as_int &&
             comp_refmv.as_int == ref_mv_stack[idx].comp_mv.as_int)
@@ -1651,9 +1651,9 @@
         ++(*added_tmvp_cnt);
 #endif  // CONFIG_MVP_IMPROVEMENT
       }
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
   }
 
   return 1;
@@ -1821,9 +1821,9 @@
     uint8_t *const refmv_count,
     CANDIDATE_MV ref_mv_stack[MAX_REF_MV_STACK_SIZE],
     uint16_t ref_mv_weight[MAX_REF_MV_STACK_SIZE],
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     MV_REFERENCE_FRAME *ref_frame_idx0, MV_REFERENCE_FRAME *ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
     int_mv mv_ref_list[MAX_MV_REF_CANDIDATES], int_mv *gm_mv_candidates,
     int mi_row, int mi_col
 #if !CONFIG_C076_INTER_MOD_CTX
@@ -1944,9 +1944,9 @@
     scan_blk_mbmi(cm, xd, mi_row, mi_col, rf, (xd->height - 1), -1,
                   ref_mv_stack, ref_mv_weight, &col_match_count, &newmv_count,
                   gm_mv_candidates,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                   ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
                   1, single_mv, &single_mv_count, derived_mv_stack,
                   derived_mv_weight, &derived_mv_count,
@@ -1963,9 +1963,9 @@
     scan_blk_mbmi(cm, xd, mi_row, mi_col, rf, -1, (xd->width - 1), ref_mv_stack,
                   ref_mv_weight, &row_match_count, &newmv_count,
                   gm_mv_candidates,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                   ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
                   1, single_mv, &single_mv_count, derived_mv_stack,
                   derived_mv_weight, &derived_mv_count,
@@ -1980,9 +1980,9 @@
     scan_blk_mbmi(cm, xd, mi_row, mi_col, rf, 0, -1, ref_mv_stack,
                   ref_mv_weight, &col_match_count, &newmv_count,
                   gm_mv_candidates,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                   ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
                   1, single_mv, &single_mv_count, derived_mv_stack,
                   derived_mv_weight, &derived_mv_count,
@@ -1999,9 +1999,9 @@
     scan_blk_mbmi(cm, xd, mi_row, mi_col, rf, -1, 0, ref_mv_stack,
                   ref_mv_weight, &row_match_count, &newmv_count,
                   gm_mv_candidates,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                   ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
                   1, single_mv, &single_mv_count, derived_mv_stack,
                   derived_mv_weight, &derived_mv_count,
@@ -2016,9 +2016,9 @@
     scan_blk_mbmi(cm, xd, mi_row, mi_col, rf, xd->height, -1, ref_mv_stack,
                   ref_mv_weight, &col_match_count, &newmv_count,
                   gm_mv_candidates,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                   ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
                   1, single_mv, &single_mv_count, derived_mv_stack,
                   derived_mv_weight, &derived_mv_count,
@@ -2033,9 +2033,9 @@
     scan_blk_mbmi(cm, xd, mi_row, mi_col, rf, -1, xd->width, ref_mv_stack,
                   ref_mv_weight, &row_match_count, &newmv_count,
                   gm_mv_candidates,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                   ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
                   1, single_mv, &single_mv_count, derived_mv_stack,
                   derived_mv_weight, &derived_mv_count,
@@ -2052,9 +2052,9 @@
     scan_blk_mbmi(cm, xd, mi_row, mi_col, rf, -1, -1, ref_mv_stack,
                   ref_mv_weight, &dummy_ref_match_count, &dummy_new_mv_count,
                   gm_mv_candidates,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                   ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
                   1, single_mv, &single_mv_count, derived_mv_stack,
                   derived_mv_weight, &derived_mv_count,
@@ -2069,9 +2069,9 @@
     scan_blk_mbmi(cm, xd, mi_row, mi_col, rf, (xd->height >> 1), -1,
                   ref_mv_stack, ref_mv_weight, &col_match_count, &newmv_count,
                   gm_mv_candidates,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                   ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
                   1, single_mv, &single_mv_count, derived_mv_stack,
                   derived_mv_weight, &derived_mv_count,
@@ -2088,9 +2088,9 @@
     scan_blk_mbmi(cm, xd, mi_row, mi_col, rf, -1, (xd->width >> 1),
                   ref_mv_stack, ref_mv_weight, &row_match_count, &newmv_count,
                   gm_mv_candidates,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                   ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
                   1, single_mv, &single_mv_count, derived_mv_stack,
                   derived_mv_weight, &derived_mv_count,
@@ -2111,9 +2111,9 @@
                   mi_col, rf, -1, ref_mv_stack, ref_mv_weight, refmv_count,
                   &row_match_count, &newmv_count, gm_mv_candidates,
                   max_row_offset,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                   ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
                   1, single_mv, &single_mv_count, derived_mv_stack,
                   derived_mv_weight, &derived_mv_count,
@@ -2133,9 +2133,9 @@
                   rf, -1, ref_mv_stack, ref_mv_weight, refmv_count,
                   &col_match_count, &newmv_count, gm_mv_candidates,
                   max_col_offset,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                   ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
                   1, single_mv, &single_mv_count, derived_mv_stack,
                   derived_mv_weight, &derived_mv_count,
@@ -2151,9 +2151,9 @@
     scan_blk_mbmi(cm, xd, mi_row, mi_col, rf, -1, xd->width, ref_mv_stack,
                   ref_mv_weight, &row_match_count, &newmv_count,
                   gm_mv_candidates,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                   ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
                   1, single_mv, &single_mv_count, derived_mv_stack,
                   derived_mv_weight, &derived_mv_count,
@@ -2236,10 +2236,10 @@
                            &added_tmvp_cnt,
 #endif  // CONFIG_MVP_IMPROVEMENT
                            ref_mv_stack, ref_mv_weight
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                            ,
                            ref_frame_idx0, ref_frame_idx1
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if !CONFIG_C076_INTER_MOD_CTX
                            ,
                            mode_context
@@ -2269,10 +2269,10 @@
                      gm_mv_candidates,
 #endif  //! CONFIG_C076_INTER_MOD_CTX
                      refmv_count, ref_mv_stack, ref_mv_weight,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                      ref_frame_idx0,
                      ref_frame_idx1
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if !CONFIG_C076_INTER_MOD_CTX
                          mode_context
 #endif  //! CONFIG_C076_INTER_MOD_CTX
@@ -2287,9 +2287,9 @@
   // Scan the second outer area.
   scan_blk_mbmi(cm, xd, mi_row, mi_col, rf, -1, -1, ref_mv_stack, ref_mv_weight,
                 &row_match_count, &dummy_newmv_count, gm_mv_candidates,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                 ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_MVP_IMPROVEMENT
                 0, single_mv, &single_mv_count, derived_mv_stack,
                 derived_mv_weight, &derived_mv_count,
@@ -2313,9 +2313,9 @@
                     rf, col_offset, ref_mv_stack, ref_mv_weight, refmv_count,
                     &col_match_count, &dummy_newmv_count, gm_mv_candidates,
                     max_col_offset,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                     ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
                     0, single_mv, &single_mv_count, derived_mv_stack,
                     derived_mv_weight, &derived_mv_count,
 #if CONFIG_WARP_REF_LIST
@@ -2339,9 +2339,9 @@
                     mi_col, rf, row_offset, ref_mv_stack, ref_mv_weight,
                     refmv_count, &row_match_count, &dummy_newmv_count,
                     gm_mv_candidates, max_row_offset,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                     ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_WARP_REF_LIST
                     warp_param_stack, max_num_of_warp_candidates,
                     valid_num_warp_candidates, ref_frame,
@@ -2358,9 +2358,9 @@
                     rf, col_offset, ref_mv_stack, ref_mv_weight, refmv_count,
                     &col_match_count, &dummy_newmv_count, gm_mv_candidates,
                     max_col_offset,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                     ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_WARP_REF_LIST
                     warp_param_stack, max_num_of_warp_candidates,
                     valid_num_warp_candidates, ref_frame,
@@ -2420,7 +2420,7 @@
         ref_mv_stack[idx] = tmp_mv;
         ref_mv_weight[idx - 1] = ref_mv_weight[idx];
         ref_mv_weight[idx] = tmp_ref_mv_weight;
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         if (xd->mi[0]->skip_mode) {
           const MV_REFERENCE_FRAME temp_ref0 = ref_frame_idx0[idx - 1];
           const MV_REFERENCE_FRAME temp_ref1 = ref_frame_idx1[idx - 1];
@@ -2430,7 +2430,7 @@
           ref_frame_idx1[idx - 1] = ref_frame_idx1[idx];
           ref_frame_idx1[idx] = temp_ref1;
         }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
         nr_len = idx;
       }
     }
@@ -2479,18 +2479,18 @@
            ++idx_bank) {
         const int idx = (start_idx + count - 1 - idx_bank) % REF_MV_BANK_SIZE;
         const CANDIDATE_MV cand_mv = queue[idx];
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         bool rmb_candi_exist =
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
             check_rmb_cand(cand_mv, ref_mv_stack, ref_mv_weight, refmv_count,
                            is_comp, xd->mi_row, xd->mi_col, block_width,
                            block_height, cm->width, cm->height);
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         if (xd->mi[0]->skip_mode && rmb_candi_exist) {
           ref_frame_idx0[*refmv_count - 1] = rf[0];
           ref_frame_idx1[*refmv_count - 1] = rf[1];
         }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
       }
     }
   }
@@ -2500,16 +2500,16 @@
   const int max_ref_mv_count =
       AOMMIN(cm->features.max_drl_bits + 1, MAX_REF_MV_STACK_SIZE);
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   if (xd->mi[0]->skip_mode) derived_mv_count = 0;
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
   if (*refmv_count < max_ref_mv_count && derived_mv_count > 0) {
     fill_mvp_from_derived_smvp(rf, ref_mv_stack, ref_mv_weight, refmv_count,
                                derived_mv_stack, derived_mv_count,
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
                                xd->mi[0], ref_frame_idx0, ref_frame_idx1,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
                                max_ref_mv_count);
   }
 #endif  // CONFIG_MVP_IMPROVEMENT
@@ -2595,12 +2595,12 @@
           ref_mv_stack[*refmv_count].cwp_idx = CWP_EQUAL;
 #endif  // CONFIG_CWP
         }
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         if (xd->mi[0]->skip_mode) {
           ref_frame_idx0[*refmv_count] = rf[0];
           ref_frame_idx1[*refmv_count] = rf[1];
         }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
         ref_mv_weight[*refmv_count] = 2;
         ++*refmv_count;
       } else {
@@ -2614,12 +2614,12 @@
 #if CONFIG_CWP
           ref_mv_stack[*refmv_count].cwp_idx = CWP_EQUAL;
 #endif  // CONFIG_CWP
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
           if (xd->mi[0]->skip_mode) {
             ref_frame_idx0[*refmv_count] = rf[0];
             ref_frame_idx1[*refmv_count] = rf[1];
           }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
           ref_mv_weight[*refmv_count] = 2;
           ++*refmv_count;
         }
@@ -2636,9 +2636,9 @@
     }
   } else {
     // Handle single reference frame extension
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     assert(!xd->mi[0]->skip_mode);
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_IBC_SR_EXT
     if (!xd->mi[0]->use_intrabc[xd->tree_type == CHROMA_PART]) {
 #endif  // CONFIG_IBC_SR_EXT
@@ -2738,18 +2738,18 @@
          ++idx_bank) {
       const int idx = (start_idx + count - 1 - idx_bank) % REF_MV_BANK_SIZE;
       const CANDIDATE_MV cand_mv = queue[idx];
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
       bool rmb_candi_exist =
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
           check_rmb_cand(cand_mv, ref_mv_stack, ref_mv_weight, refmv_count,
                          is_comp, xd->mi_row, xd->mi_col, block_width,
                          block_height, cm->width, cm->height);
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
       if (xd->mi[0]->skip_mode && rmb_candi_exist) {
         ref_frame_idx0[*refmv_count - 1] = rf[0];
         ref_frame_idx1[*refmv_count - 1] = rf[1];
       }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
     }
   }
 #endif  // CONFIG_REF_MV_BANK && !CONFIG_MVP_IMPROVEMENT
@@ -2980,7 +2980,7 @@
   }
 #endif  // CONFIG_WARP_REF_LIST
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   if (mi->skip_mode) {
     SKIP_MODE_MVP_LIST *skip_list =
         (SKIP_MODE_MVP_LIST *)&(xd->skip_mvp_candidate_list);
@@ -3099,7 +3099,7 @@
                     derive_wrl ? &valid_num_warp_candidates[ref_frame] : NULL
 #endif  // CONFIG_WARP_REF_LIST
   );
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 }
 
 #if CONFIG_FLEX_MVRES
diff --git a/av1/decoder/decodemv.c b/av1/decoder/decodemv.c
index 75c72b2..4686ecb 100644
--- a/av1/decoder/decodemv.c
+++ b/av1/decoder/decodemv.c
@@ -332,12 +332,12 @@
                                    ? xd->weight[mbmi->ref_frame[ref]]
                                    : xd->weight[ref_frame_type];
       aom_cdf_prob *drl_cdf =
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
           mbmi->skip_mode ? ec_ctx->skip_drl_cdf[AOMMIN(idx, 2)]
                           : av1_get_drl_cdf(ec_ctx, weight, mode_ctx, idx);
 #else
           av1_get_drl_cdf(ec_ctx, xd->weight[ref_frame_type], mode_ctx, idx);
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
       int drl_idx = aom_read_symbol(r, drl_cdf, 2, ACCT_INFO("drl_idx"));
       mbmi->ref_mv_idx[ref] = idx + drl_idx;
       if (!drl_idx) break;
@@ -351,13 +351,13 @@
 #endif  // CONFIG_SKIP_MODE_ENHANCEMENT
   for (int idx = 0; idx < max_drl_bits; ++idx) {
     aom_cdf_prob *drl_cdf =
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         mbmi->skip_mode ? ec_ctx->skip_drl_cdf[AOMMIN(idx, 2)]
                         : av1_get_drl_cdf(ec_ctx, xd->weight[ref_frame_type],
                                           mode_ctx, idx);
 #else
         av1_get_drl_cdf(ec_ctx, xd->weight[ref_frame_type], mode_ctx, idx);
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
     int drl_idx = aom_read_symbol(r, drl_cdf, 2, ACCT_INFO("drl_idx"));
     mbmi->ref_mv_idx = idx + drl_idx;
     if (!drl_idx) break;
@@ -2884,7 +2884,7 @@
     );
 #endif  // CONFIG_SEP_COMP_DRL
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_SEP_COMP_DRL
     mbmi->ref_frame[0] =
         xd->skip_mvp_candidate_list.ref_frame0[get_ref_mv_idx(mbmi, 0)];
@@ -2896,7 +2896,7 @@
     mbmi->ref_frame[1] =
         xd->skip_mvp_candidate_list.ref_frame1[mbmi->ref_mv_idx];
 #endif
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
 #if CONFIG_REFINEMV && !CONFIG_CWP
     mbmi->refinemv_flag = get_default_refinemv_flag(cm, mbmi);
@@ -3077,7 +3077,7 @@
 #else
     ref_mv[1] = xd->ref_mv_stack[ref_frame][mbmi->ref_mv_idx].comp_mv;
 #endif
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     if (mbmi->skip_mode) {
 #if CONFIG_SEP_COMP_DRL
       ref_mv[0] =
@@ -3093,7 +3093,7 @@
           xd->skip_mvp_candidate_list.ref_mv_stack[mbmi->ref_mv_idx].comp_mv;
 #endif  // CONFIG_SEP_COMP_DRL
     }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
   }
 
   if (mbmi->skip_mode) {
@@ -3292,7 +3292,7 @@
       }
     }
   }
-#if CONFIG_CWP
+#if CONFIG_CWP && CONFIG_SKIP_MODE_ENHANCEMENT
   mbmi->cwp_idx = CWP_EQUAL;
   if (cm->features.enable_cwp) {
     if (is_cwp_allowed(mbmi) && !mbmi->skip_mode)
@@ -3312,8 +3312,8 @@
             ? 1
             : 0;
   }
-#endif
-#endif  // CONFIG_CWP
+#endif  // CONFIG_REFINEMV
+#endif  // CONFIG_CWP && CONFIG_SKIP_MODE_ENHANCEMENT
 
   read_mb_interp_filter(xd, features->interp_filter, cm, mbmi, r);
 
diff --git a/av1/encoder/bitstream.c b/av1/encoder/bitstream.c
index 2b3168d..879ebec 100644
--- a/av1/encoder/bitstream.c
+++ b/av1/encoder/bitstream.c
@@ -152,12 +152,12 @@
       assert(mbmi->mode == NEAR_NEARMV);
   }
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   if (mbmi->skip_mode)
     assert(mbmi->ref_mv_idx[0] <
            mbmi_ext_frame->skip_mvp_candidate_list.ref_mv_count);
   else
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
     assert(mbmi->ref_mv_idx[0] < mbmi_ext_frame->ref_mv_count[0]);
   if (has_second_drl(mbmi))
     assert(mbmi->ref_mv_idx[1] < mbmi_ext_frame->ref_mv_count[1]);
@@ -166,35 +166,35 @@
   for (int ref = 0; ref < 1 + has_second_drl(mbmi); ref++) {
     for (int idx = 0; idx < max_drl_bits; ++idx) {
       aom_cdf_prob *drl_cdf =
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
           mbmi->skip_mode ? ec_ctx->skip_drl_cdf[AOMMIN(idx, 2)]
                           : av1_get_drl_cdf(ec_ctx, mbmi_ext_frame->weight[ref],
                                             mode_ctx, idx);
 #else
           av1_get_drl_cdf(ec_ctx, mbmi_ext_frame->weight[ref], mode_ctx, idx);
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
       aom_write_symbol(w, mbmi->ref_mv_idx[ref] != idx, drl_cdf, 2);
       if (mbmi->ref_mv_idx[ref] == idx) break;
     }
   }
 #else
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   if (mbmi->skip_mode)
     assert(mbmi->ref_mv_idx <
            mbmi_ext_frame->skip_mvp_candidate_list.ref_mv_count);
   else
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
     assert(mbmi->ref_mv_idx < mbmi_ext_frame->ref_mv_count);
   assert(mbmi->ref_mv_idx < max_drl_bits + 1);
   for (int idx = 0; idx < max_drl_bits; ++idx) {
     aom_cdf_prob *drl_cdf =
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         mbmi->skip_mode
             ? ec_ctx->skip_drl_cdf[AOMMIN(idx, 2)]
             : av1_get_drl_cdf(ec_ctx, mbmi_ext_frame->weight, mode_ctx, idx);
 #else
         av1_get_drl_cdf(ec_ctx, mbmi_ext_frame->weight, mode_ctx, idx);
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
     aom_write_symbol(w, mbmi->ref_mv_idx != idx, drl_cdf, 2);
     if (mbmi->ref_mv_idx == idx) break;
   }
diff --git a/av1/encoder/block.h b/av1/encoder/block.h
index 468f0a8..23feb0b 100644
--- a/av1/encoder/block.h
+++ b/av1/encoder/block.h
@@ -260,7 +260,7 @@
   //! Global mvs
   int_mv global_mvs[INTER_REFS_PER_FRAME];
   //! skip_mvp_candidate_list is the MVP list for skip mode.
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   SKIP_MODE_MVP_LIST skip_mvp_candidate_list;
 #endif
 
@@ -300,7 +300,7 @@
   uint8_t ref_mv_count;
 #endif  // CONFIG_SEP_COMP_DRL
   //! skip_mvp_candidate_list is the MVP list for skip mode.
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   SKIP_MODE_MVP_LIST skip_mvp_candidate_list;
 #endif
   // TODO(Ravi/Remya): Reduce the buffer size of global_mvs
@@ -921,10 +921,10 @@
   int pb_block_mv_precision_costs[MV_PREC_DOWN_CONTEXTS][FLEX_MV_COSTS_SIZE]
                                  [NUM_MV_PRECISIONS];
 #endif
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   //! skip_drl_mode_cost
   int skip_drl_mode_cost[3][2];
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
   /**@}*/
 
   /*****************************************************************************
diff --git a/av1/encoder/encodeframe_utils.c b/av1/encoder/encodeframe_utils.c
index 96a4849..0f05979 100644
--- a/av1/encoder/encodeframe_utils.c
+++ b/av1/encoder/encodeframe_utils.c
@@ -1288,9 +1288,9 @@
   AVERAGE_CDF(ctx_left->drl_cdf[0], ctx_tr->drl_cdf[0], 2);
   AVERAGE_CDF(ctx_left->drl_cdf[1], ctx_tr->drl_cdf[1], 2);
   AVERAGE_CDF(ctx_left->drl_cdf[2], ctx_tr->drl_cdf[2], 2);
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   AVERAGE_CDF(ctx_left->skip_drl_cdf, ctx_tr->skip_drl_cdf, 2);
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_OPTFLOW_REFINEMENT
   AVERAGE_CDF(ctx_left->inter_compound_mode_cdf,
               ctx_tr->inter_compound_mode_cdf, INTER_COMPOUND_REF_TYPES);
diff --git a/av1/encoder/encoder.h b/av1/encoder/encoder.h
index b9ae241..d21d927 100644
--- a/av1/encoder/encoder.h
+++ b/av1/encoder/encoder.h
@@ -1347,9 +1347,9 @@
   unsigned int inter_single_mode[INTER_SINGLE_MODE_CONTEXTS]
                                 [INTER_SINGLE_MODES];
   unsigned int drl_mode[3][DRL_MODE_CONTEXTS][2];
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   unsigned int skip_drl_mode[3][2];
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_OPTFLOW_REFINEMENT
   unsigned int use_optflow[INTER_COMPOUND_MODE_CONTEXTS][2];
   unsigned int inter_compound_mode[INTER_COMPOUND_MODE_CONTEXTS]
diff --git a/av1/encoder/partition_search.c b/av1/encoder/partition_search.c
index ef512d2..4718e81 100644
--- a/av1/encoder/partition_search.c
+++ b/av1/encoder/partition_search.c
@@ -1077,7 +1077,7 @@
 #endif  // CONFIG_WARP_REF_LIST
 }
 #endif  // CONFIG_EXTENDED_WARP_PREDICTION
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
 static void update_skip_drl_index_stats(int max_drl_bits, FRAME_CONTEXT *fc,
                                         FRAME_COUNTS *counts,
                                         const MB_MODE_INFO *mbmi) {
@@ -1116,7 +1116,7 @@
 #endif  // CONFIG_SEP_COMP_DRL
   }
 }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
 static void update_stats(const AV1_COMMON *const cm, ThreadData *td) {
   MACROBLOCK *x = &td->mb;
@@ -1294,14 +1294,14 @@
 #if CONFIG_SKIP_MODE_ENHANCEMENT
   if (mbmi->skip_mode && have_drl_index(mbmi->mode)) {
     FRAME_COUNTS *const counts = td->counts;
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     update_skip_drl_index_stats(cm->features.max_drl_bits, fc, counts, mbmi);
 #else
     const int16_t mode_ctx_pristine =
         av1_mode_context_pristine(mbmi_ext->mode_context, mbmi->ref_frame);
     update_drl_index_stats(cm->features.max_drl_bits, mode_ctx_pristine, fc,
                            counts, mbmi, mbmi_ext);
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
   }
 #endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
@@ -2034,9 +2034,9 @@
       assert(!frame_is_intra_only(cm));
       rdc->skip_mode_used_flag = 1;
       if (cm->current_frame.reference_mode == REFERENCE_MODE_SELECT) {
-#if !CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if !CONFIG_SKIP_MODE_ENHANCEMENT
         assert(has_second_ref(mbmi));
-#endif  // !CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // !CONFIG_SKIP_MODE_ENHANCEMENT
         rdc->compound_ref_used_flag = 1;
       }
       set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]);
@@ -2120,7 +2120,7 @@
   // frame level buffer (cpi->mbmi_ext_info.frame_base) will be used during
   // bitstream preparation.
   if (xd->tree_type != CHROMA_PART)
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   {
     if (mbmi->skip_mode) {
       const SkipModeInfo *const skip_mode_info =
@@ -2147,20 +2147,20 @@
       // mbmi_ext->weight[ref_frame][4] inside av1_find_mv_refs.
       av1_copy_usable_ref_mv_stack_and_weight(xd, x->mbmi_ext, ref_frame_type);
     }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
     av1_copy_mbmi_ext_to_mbmi_ext_frame(
         x->mbmi_ext_frame, x->mbmi_ext,
 #if CONFIG_SEP_COMP_DRL
         mbmi,
 #endif  // CONFIG_SEP_COMP_DRL
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         mbmi->skip_mode,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
         av1_ref_frame_type(xd->mi[0]->ref_frame));
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
   x->rdmult = origin_mult;
 }
 
diff --git a/av1/encoder/rd.c b/av1/encoder/rd.c
index 5ddbae1..e230e0f 100644
--- a/av1/encoder/rd.c
+++ b/av1/encoder/rd.c
@@ -541,12 +541,12 @@
                                fc->drl_cdf[2][i], NULL);
     }
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     for (i = 0; i < 3; ++i) {
       av1_cost_tokens_from_cdf(mode_costs->skip_drl_mode_cost[i],
                                fc->skip_drl_cdf[i], NULL);
     }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
 #if CONFIG_OPTFLOW_REFINEMENT
     for (i = 0; i < INTER_COMPOUND_MODE_CONTEXTS; ++i)
diff --git a/av1/encoder/rdopt.c b/av1/encoder/rdopt.c
index 07222dc..a41ab9a 100644
--- a/av1/encoder/rdopt.c
+++ b/av1/encoder/rdopt.c
@@ -789,9 +789,9 @@
 #if CONFIG_SEP_COMP_DRL
         xd->mi[0],
 #endif  // CONFIG_SEP_COMP_DRL
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         xd->mi[0]->skip_mode,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
         av1_ref_frame_type(xd->mi[0]->ref_frame));
   ctx->single_pred_diff = (int)comp_pred_diff[SINGLE_REFERENCE];
   ctx->comp_pred_diff = (int)comp_pred_diff[COMPOUND_REFERENCE];
@@ -829,9 +829,9 @@
     av1_setup_pred_block(xd, yv12_mb[ref_frame_idx], yv12, sf, sf, num_planes);
   }
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   if (mbmi->skip_mode) return;
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
   // Gets an initial list of candidate vectors from neighbours and orders them
   av1_find_mv_refs(
@@ -3057,7 +3057,7 @@
   const MB_MODE_INFO *mbmi = xd->mi[0];
   const int is_comp_pred = has_second_ref(mbmi);
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   if (mbmi->skip_mode) {
     int ret = 1;
 #if CONFIG_SEP_COMP_DRL
@@ -3107,7 +3107,7 @@
 
     return ret;
   }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
   int ret = 1;
   for (int i = 0; i < is_comp_pred + 1; ++i) {
@@ -3211,7 +3211,7 @@
   return cost;
 }
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
 static INLINE int get_skip_drl_cost(int max_drl_bits, const MB_MODE_INFO *mbmi,
                                     const MACROBLOCK *x) {
 #if CONFIG_SEP_COMP_DRL
@@ -3258,7 +3258,7 @@
 #endif
   return cost;
 }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
 static INLINE int is_single_newmv_valid(const HandleInterModeArgs *const args,
                                         const MB_MODE_INFO *const mbmi,
@@ -3317,10 +3317,10 @@
   if (mode == AMVDNEWMV) ref_mv_count = AOMMIN(ref_mv_count, 2);
 #endif  // IMPROVED_AMVD
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   if (x->e_mbd.mi[0]->skip_mode)
     ref_mv_count = mbmi_ext->skip_mvp_candidate_list.ref_mv_count;
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
   return AOMMIN(max_drl_bits + 1, ref_mv_count);
 }
@@ -6746,9 +6746,9 @@
 #if CONFIG_SEP_COMP_DRL
         xd->mi[0],
 #endif
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         mbmi->skip_mode,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
         av1_ref_frame_type(xd->mi[0]->ref_frame));
   av1_copy_array(ctx->tx_type_map, xd->tx_type_map, ctx->num_4x4_blk);
 }
@@ -6834,7 +6834,7 @@
   mbmi->refinemv_flag = 0;
 #endif  // CONFIG_REFINEMV
 
-#if !CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if !CONFIG_SKIP_MODE_ENHANCEMENT
   const uint8_t ref_frame_type = av1_ref_frame_type(mbmi->ref_frame);
   if (x->mbmi_ext->ref_mv_count[ref_frame_type] == UINT8_MAX) {
     if (x->mbmi_ext->ref_mv_count[ref_frame] == UINT8_MAX ||
@@ -6858,7 +6858,7 @@
     // mbmi_ext->weight[ref_frame][4] inside av1_find_mv_refs.
     av1_copy_usable_ref_mv_stack_and_weight(xd, mbmi_ext, ref_frame_type);
   }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
 #if CONFIG_OPTFLOW_REFINEMENT
 #if CONFIG_CWP
@@ -6880,12 +6880,12 @@
   assert(mbmi->mode == NEAR_NEARMV);
 #endif
 
-#if !CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if !CONFIG_SKIP_MODE_ENHANCEMENT
   if (!build_cur_mv(mbmi->mv, this_mode, cm, x, 0)) {
     assert(av1_check_newmv_joint_nonzero(cm, x));
     return;
   }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
   mbmi->fsc_mode[xd->tree_type == CHROMA_PART] = 0;
 #if CONFIG_BAWP
@@ -6926,7 +6926,7 @@
 #endif  // CONFIG_OPTFLOW_REFINEMENT
                              cm->features.interp_filter);
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   const int mi_row = xd->mi_row;
   const int mi_col = xd->mi_col;
 
@@ -7036,7 +7036,7 @@
       orig_dst.plane[i] = xd->plane[i].dst.buf;
       orig_dst.stride[i] = xd->plane[i].dst.stride;
     }
-#else  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#else  // CONFIG_SKIP_MODE_ENHANCEMENT
   set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]);
   for (int i = 0; i < num_planes; i++) {
     xd->plane[i].pre[0] = yv12_mb[mbmi->ref_frame[0]][i];
@@ -7077,7 +7077,7 @@
       assert(av1_check_newmv_joint_nonzero(cm, x));
       continue;
     }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
     av1_enc_build_inter_predictor(cm, xd, mi_row, mi_col, &orig_dst, bsize, 0,
                                   av1_num_planes(cm) - 1);
@@ -7093,11 +7093,11 @@
     // MB_MODE_INFO_EXT *const mbmi_ext = x->mbmi_ext;
     // add ref_mv_idx rate
     const int drl_cost =
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
         get_skip_drl_cost(cpi->common.features.max_drl_bits, mbmi, x);
 #else
         get_drl_cost(cpi->common.features.max_drl_bits, mbmi, mbmi_ext, x);
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
     skip_mode_rd_stats.rate += drl_cost;
 
     // Do transform search
@@ -7244,7 +7244,12 @@
   }
 
   mbmi->mode = this_mode;
+#if CONFIG_SEP_COMP_DRL
+  mbmi->ref_mv_idx[0] = 0;
+  mbmi->ref_mv_idx[1] = 0;
+#else
   mbmi->ref_mv_idx = 0;
+#endif  // CONFIG_SEP_COMP_DRL
   mbmi->uv_mode = UV_DC_PRED;
   mbmi->ref_frame[0] = ref_frame;
   mbmi->ref_frame[1] = second_ref_frame;
@@ -7288,7 +7293,12 @@
   mbmi->comp_group_idx = 0;
   mbmi->interinter_comp.type = COMPOUND_AVERAGE;
   mbmi->motion_mode = SIMPLE_TRANSLATION;
+#if CONFIG_SEP_COMP_DRL
+  mbmi->ref_mv_idx[0] = 0;
+  mbmi->ref_mv_idx[1] = 0;
+#else
   mbmi->ref_mv_idx = 0;
+#endif  // CONFIG_SEP_COMP_DRL
   mbmi->skip_mode = mbmi->skip_txfm[xd->tree_type == CHROMA_PART] = 1;
 
   set_default_interp_filters(mbmi,
@@ -7343,7 +7353,12 @@
     search_state->best_mbmode.ref_frame[1] = mbmi->ref_frame[1];
     search_state->best_mbmode.mv[0].as_int = mbmi->mv[0].as_int;
     search_state->best_mbmode.mv[1].as_int = mbmi->mv[1].as_int;
+#if CONFIG_SEP_COMP_DRL
+    search_state->best_mbmode.ref_mv_idx[0] = 0;
+    search_state->best_mbmode.ref_mv_idx[1] = 0;
+#else
     search_state->best_mbmode.ref_mv_idx = 0;
+#endif
 
 #if CONFIG_FLEX_MVRES
     search_state->best_mbmode.pb_mv_precision = mbmi->max_mv_precision;
diff --git a/av1/encoder/rdopt.h b/av1/encoder/rdopt.h
index 04144b7..3647c7d 100644
--- a/av1/encoder/rdopt.h
+++ b/av1/encoder/rdopt.h
@@ -179,13 +179,13 @@
 static INLINE void av1_copy_usable_ref_mv_stack_and_weight(
     const MACROBLOCKD *xd, MB_MODE_INFO_EXT *const mbmi_ext,
     MV_REFERENCE_FRAME ref_frame) {
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   if (xd->mi[0]->skip_mode) {
     memcpy(&(mbmi_ext->skip_mvp_candidate_list), &(xd->skip_mvp_candidate_list),
            sizeof(xd->skip_mvp_candidate_list));
     return;
   }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 #if CONFIG_SEP_COMP_DRL
   if (has_second_drl(xd->mi[0])) {
     MV_REFERENCE_FRAME rf[2];
@@ -327,19 +327,19 @@
 #if CONFIG_SEP_COMP_DRL
     MB_MODE_INFO *mbmi,
 #endif  // CONFIG_SEP_COMP_DRL
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
     uint8_t skip_mode,
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
     uint8_t ref_frame_type) {
 
-#if CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#if CONFIG_SKIP_MODE_ENHANCEMENT
   if (skip_mode) {
     memcpy(&(mbmi_ext_best->skip_mvp_candidate_list),
            &(mbmi_ext->skip_mvp_candidate_list),
            sizeof(mbmi_ext->skip_mvp_candidate_list));
     return;
   }
-#endif  // CONFIG_SKIP_MODE_DRL_WITH_REF_IDX
+#endif  // CONFIG_SKIP_MODE_ENHANCEMENT
 
 #if CONFIG_SEP_COMP_DRL
   MV_REFERENCE_FRAME rf[2];
diff --git a/build/cmake/aom_config_defaults.cmake b/build/cmake/aom_config_defaults.cmake
index f410fad..5deff84 100644
--- a/build/cmake/aom_config_defaults.cmake
+++ b/build/cmake/aom_config_defaults.cmake
@@ -228,10 +228,7 @@
 set_aom_config_var(CONFIG_SKIP_MODE_SSE_BUG_FIX 1
                    "AV2 experiment flag to fix the SSE calc bug for skip mode.")
 set_aom_config_var(CONFIG_SKIP_MODE_ENHANCEMENT 1
-                   "AV2 experiment flag to enable skip mode enhancement: C019.")
-set_aom_config_var(
-  CONFIG_SKIP_MODE_DRL_WITH_REF_IDX 1
-  "AV2 experiment flag to enable DRL with ref_MV_idx for skip mode.")
+                   "AV2 experiment flag to enable skip mode enhancement.")
 set_aom_config_var(CONFIG_TIP 1 "Enable temporal interpolated prediction (TIP)")
 set_aom_config_var(CONFIG_OUTPUT_FRAME_BASED_ON_ORDER_HINT 0
                    "Enable frame output order derivation from order hint")