Remove CCSO macros

Addresses one task of #468
diff --git a/aom/aom_encoder.h b/aom/aom_encoder.h
index 851319d..eec06f2 100644
--- a/aom/aom_encoder.h
+++ b/aom/aom_encoder.h
@@ -448,12 +448,10 @@
    *
    */
   unsigned int enable_wiener_nonsep;
-#if CONFIG_CCSO
   /*!\brief enable cross-component sample offset
    *
    */
   unsigned int enable_ccso;
-#endif
   /*!\brief enable prediction enhancement filter
    *
    */
diff --git a/apps/aomenc.c b/apps/aomenc.c
index c6d7821..3670d6e 100644
--- a/apps/aomenc.c
+++ b/apps/aomenc.c
@@ -474,9 +474,7 @@
 #if CONFIG_AFFINE_REFINEMENT
   &g_av1_codec_arg_defs.enable_affine_refine,
 #endif  // CONFIG_AFFINE_REFINEMENT
-#if CONFIG_CCSO
   &g_av1_codec_arg_defs.enable_ccso,
-#endif
   &g_av1_codec_arg_defs.enable_pef,
 #if CONFIG_LF_SUB_PU
   &g_av1_codec_arg_defs.enable_lf_sub_pu,
@@ -698,9 +696,7 @@
   config->enable_sgrproj = 1;
   config->enable_pc_wiener = 1;
   config->enable_wiener_nonsep = 1;
-#if CONFIG_CCSO
   config->enable_ccso = 1;
-#endif
 #if CONFIG_LF_SUB_PU
   config->enable_pef = 0;
   config->enable_lf_sub_pu = 1;
@@ -1655,17 +1651,12 @@
 
   fprintf(stdout,
           "Tool setting (Loop filter)     : Deblocking (%d), CDEF (%d), "
-#if CONFIG_CCSO
           "CCSO (%d), "
-#endif
           "LoopRestoration (%d: [%d/%d/%d/%d])\n",
           encoder_cfg->enable_deblocking, encoder_cfg->enable_cdef,
-#if CONFIG_CCSO
-          encoder_cfg->enable_ccso,
-#endif
-          encoder_cfg->enable_restoration, encoder_cfg->enable_wiener,
-          encoder_cfg->enable_sgrproj, encoder_cfg->enable_pc_wiener,
-          encoder_cfg->enable_wiener_nonsep);
+          encoder_cfg->enable_ccso, encoder_cfg->enable_restoration,
+          encoder_cfg->enable_wiener, encoder_cfg->enable_sgrproj,
+          encoder_cfg->enable_pc_wiener, encoder_cfg->enable_wiener_nonsep);
 
   fprintf(stdout,
           "Tool setting (Others)          : Palette (%d), "
diff --git a/av1/arg_defs.c b/av1/arg_defs.c
index f0eeda8..ea88891 100644
--- a/av1/arg_defs.c
+++ b/av1/arg_defs.c
@@ -351,11 +351,9 @@
   .enable_wiener_nonsep = ARG_DEF(NULL, "enable-wiener-nonsep", 1,
                                   "Enable nonsep-wiener lr filter (0: false, "
                                   "1: true (default))"),
-#if CONFIG_CCSO
   .enable_ccso = ARG_DEF(NULL, "enable-ccso", 1,
                          "Enable cross component sample offset (0: false "
                          "1: true)"),
-#endif
   .enable_pef = ARG_DEF(NULL, "enable-pef", 1,
                         "Enable prediction enhancement filter (0: false "
                         "1: true)"),
diff --git a/av1/arg_defs.h b/av1/arg_defs.h
index 5ae03f9..8538acf 100644
--- a/av1/arg_defs.h
+++ b/av1/arg_defs.h
@@ -135,9 +135,7 @@
   arg_def_t enable_sgrproj;
   arg_def_t enable_pc_wiener;
   arg_def_t enable_wiener_nonsep;
-#if CONFIG_CCSO
   arg_def_t enable_ccso;
-#endif
   arg_def_t enable_pef;
 #if CONFIG_LF_SUB_PU
   arg_def_t enable_lf_sub_pu;
diff --git a/av1/av1.cmake b/av1/av1.cmake
index 1b28749..a1e4f9a 100644
--- a/av1/av1.cmake
+++ b/av1/av1.cmake
@@ -117,12 +117,10 @@
   endif()
 endif()
 
-if(CONFIG_CCSO)
-  list(APPEND AOM_AV1_COMMON_SOURCES "${AOM_ROOT}/av1/common/ccso.c"
-       "${AOM_ROOT}/av1/common/ccso.h")
-  list(APPEND AOM_AV1_ENCODER_SOURCES "${AOM_ROOT}/av1/encoder/pickccso.c"
-       "${AOM_ROOT}/av1/encoder/pickccso.h")
-endif()
+list(APPEND AOM_AV1_COMMON_SOURCES "${AOM_ROOT}/av1/common/ccso.c"
+     "${AOM_ROOT}/av1/common/ccso.h")
+list(APPEND AOM_AV1_ENCODER_SOURCES "${AOM_ROOT}/av1/encoder/pickccso.c"
+     "${AOM_ROOT}/av1/encoder/pickccso.h")
 
 list(
   APPEND
diff --git a/av1/av1_cx_iface.c b/av1/av1_cx_iface.c
index 5b1c87f..9ff98bd 100644
--- a/av1/av1_cx_iface.c
+++ b/av1/av1_cx_iface.c
@@ -72,9 +72,7 @@
   unsigned int enable_sgrproj;
   unsigned int enable_pc_wiener;
   unsigned int enable_wiener_nonsep;
-#if CONFIG_CCSO
   unsigned int enable_ccso;
-#endif
   unsigned int enable_pef;
 #if CONFIG_LF_SUB_PU
   unsigned int enable_lf_sub_pu;
@@ -413,9 +411,7 @@
   1,                                         // enable_sgrproj
   1,                                         // enable_pc_wiener
   1,                                         // enable_wiener_nonsep
-#if CONFIG_CCSO
-  1,  // enable_ccso
-#endif
+  1,                                         // enable_ccso
 #if CONFIG_LF_SUB_PU
   0,  // enable_pef
   1,  // enable_lf_sub_pu
@@ -966,9 +962,7 @@
   cfg->enable_sgrproj = extra_cfg->enable_sgrproj;
   cfg->enable_pc_wiener = extra_cfg->enable_pc_wiener;
   cfg->enable_wiener_nonsep = extra_cfg->enable_wiener_nonsep;
-#if CONFIG_CCSO
   cfg->enable_ccso = extra_cfg->enable_ccso;
-#endif
   cfg->enable_pef = extra_cfg->enable_pef;
 #if CONFIG_LF_SUB_PU
   cfg->enable_lf_sub_pu = extra_cfg->enable_lf_sub_pu;
@@ -1094,9 +1088,7 @@
   extra_cfg->enable_sgrproj = cfg->enable_sgrproj;
   extra_cfg->enable_pc_wiener = cfg->enable_pc_wiener;
   extra_cfg->enable_wiener_nonsep = cfg->enable_wiener_nonsep;
-#if CONFIG_CCSO
   extra_cfg->enable_ccso = cfg->enable_ccso;
-#endif
   extra_cfg->enable_pef = cfg->enable_pef;
 #if CONFIG_LF_SUB_PU
   extra_cfg->enable_lf_sub_pu = cfg->enable_lf_sub_pu;
@@ -1405,9 +1397,7 @@
   tool_cfg->enable_restoration &=
       (tool_cfg->enable_wiener | tool_cfg->enable_sgrproj |
        tool_cfg->enable_pc_wiener | tool_cfg->enable_wiener_nonsep);
-#if CONFIG_CCSO
   tool_cfg->enable_ccso = extra_cfg->enable_ccso;
-#endif
   tool_cfg->enable_pef = extra_cfg->enable_pef;
   if (tool_cfg->enable_pef) {
     if (cfg->g_lag_in_frames == 0) {
@@ -3786,11 +3776,9 @@
   } else if (arg_match_helper(&arg, &g_av1_codec_arg_defs.enable_wiener_nonsep,
                               argv, err_string)) {
     extra_cfg.enable_wiener_nonsep = arg_parse_uint_helper(&arg, err_string);
-#if CONFIG_CCSO
   } else if (arg_match_helper(&arg, &g_av1_codec_arg_defs.enable_ccso, argv,
                               err_string)) {
     extra_cfg.enable_ccso = arg_parse_int_helper(&arg, err_string);
-#endif
   } else if (arg_match_helper(&arg, &g_av1_codec_arg_defs.enable_pef, argv,
                               err_string)) {
     extra_cfg.enable_pef = arg_parse_int_helper(&arg, err_string);
@@ -4487,10 +4475,7 @@
 #if CONFIG_DERIVED_MVD_SIGN
         1,
 #endif  // CONFIG_DERIVED_MVD_SIGN
-        1, 1,   1,   1, 1, 1, 1, 1,
-#if CONFIG_CCSO
-        1,
-#endif
+        1, 1,   1,   1, 1, 1, 1, 1, 1,
 #if CONFIG_LF_SUB_PU
         0, 1,
 #else
diff --git a/av1/common/av1_common_int.h b/av1/common/av1_common_int.h
index 8d9305e..82a1dcf 100644
--- a/av1/common/av1_common_int.h
+++ b/av1/common/av1_common_int.h
@@ -375,13 +375,10 @@
   REFINE_ALL = 2,
 } UENUM1BYTE(OPTFLOW_REFINE_TYPE);
 
-#if CONFIG_CCSO
 /** ccso info */
 typedef struct {
-#if CONFIG_CCSO_BO_ONLY_OPTION
   /** ccso band offset only option */
   uint8_t ccso_bo_only[CCSO_NUM_COMPONENTS];
-#endif
 #if CONFIG_D143_CCSO_FM_FLAG
   /** ccso frame flag */
   bool ccso_frame_flag;
@@ -390,20 +387,15 @@
   bool ccso_enable[CCSO_NUM_COMPONENTS];
   /** ccso filter offset */
   int8_t filter_offset[CCSO_NUM_COMPONENTS][CCSO_BAND_NUM * 16];
-#if CONFIG_CCSO_EXT
   /** ccso log2 of max bands */
   int max_band_log2[CCSO_NUM_COMPONENTS];
-#endif
   /** quant index */
   uint8_t quant_idx[CCSO_NUM_COMPONENTS];
   /** extended filter support */
   uint8_t ext_filter_support[CCSO_NUM_COMPONENTS];
-#if CONFIG_CCSO_EDGE_CLF
   /** edge classifier index */
   uint8_t edge_clf[CCSO_NUM_COMPONENTS];
-#endif  // CONFIG_CCSO_EDGE_CLF
 } CcsoInfo;
-#endif
 
 /*!\cond */
 
@@ -546,10 +538,8 @@
   uint8_t enable_cdef;      // To turn on/off CDEF
 
   uint8_t enable_restoration;  // To turn on/off loop restoration
-#if CONFIG_CCSO
-  uint8_t enable_ccso;  // To turn on/off CCSO
-#endif
-  uint8_t enable_pef;  // To turn on/off prediction enhancement filter
+  uint8_t enable_ccso;         // To turn on/off CCSO
+  uint8_t enable_pef;          // To turn on/off prediction enhancement filter
 #if CONFIG_LF_SUB_PU
   uint8_t enable_lf_sub_pu;          // To turn on/off sub-block deblocking
 #endif                               // CONFIG_LF_SUB_PU
@@ -1637,12 +1627,10 @@
   int frame_filter_dictionary_stride;
 #endif  // CONFIG_COMBINE_PC_NS_WIENER
 
-#if CONFIG_CCSO
   /*!
    * CCSO (Cross Component Sample Offset) parameters.
    */
   CcsoInfo ccso_info;
-#endif
 
   /*!
    * Parameters for film grain synthesis.
diff --git a/av1/common/av1_rtcd_defs.pl b/av1/common/av1_rtcd_defs.pl
index 65f5276..8d405a4 100644
--- a/av1/common/av1_rtcd_defs.pl
+++ b/av1/common/av1_rtcd_defs.pl
@@ -571,68 +571,33 @@
 }
 
 # Cross-component Sample Offset
-if (aom_config("CONFIG_CCSO") eq "yes") {
-  if (aom_config("CONFIG_CCSO_EXT") eq "yes") {
-    if (aom_config("CONFIG_CCSO_EDGE_CLF") eq "yes") {
-          if (aom_config("CONFIG_CCSO_BO_ONLY_OPTION") eq "yes") {
-            add_proto qw/void ccso_filter_block_hbd_wo_buf/, "const uint16_t *src_y, uint16_t *dst_yuv, const int x, const int y, const int pic_width, const int pic_height, int *src_cls, const int8_t *offset_buf, const int scaled_ext_stride, const int dst_stride, const int y_uv_hscale, const int y_uv_vscale, const int thr, const int neg_thr, const int *src_loc, const int max_val, const int blk_size, const bool isSingleBand, const uint8_t shift_bits, const int edge_clf, const uint8_t ccso_bo_only";
-          }
-          else{
-            add_proto qw/void ccso_filter_block_hbd_wo_buf/, "const uint16_t *src_y, uint16_t *dst_yuv, const int x, const int y, const int pic_width, const int pic_height, int *src_cls, const int8_t *offset_buf, const int scaled_ext_stride, const int dst_stride, const int y_uv_hscale, const int y_uv_vscale, const int thr, const int neg_thr, const int *src_loc, const int max_val, const int blk_size, const bool isSingleBand, const uint8_t shift_bits, const int edge_clf";
-          }
-    }
-    else{
-      add_proto qw/void ccso_filter_block_hbd_wo_buf/, "const uint16_t *src_y, uint16_t *dst_yuv, const int x, const int y, const int pic_width, const int pic_height, int *src_cls, const int8_t *offset_buf, const int scaled_ext_stride, const int dst_stride, const int y_uv_hscale, const int y_uv_vscale, const int thr, const int neg_thr, const int *src_loc, const int max_val, const int blk_size, const bool isSingleBand, const uint8_t shift_bits";
-    }
-    specialize qw/ccso_filter_block_hbd_wo_buf avx2/;
+add_proto qw/void ccso_filter_block_hbd_wo_buf/, "const uint16_t *src_y, uint16_t *dst_yuv, const int x, const int y, const int pic_width, const int pic_height, int *src_cls, const int8_t *offset_buf, const int scaled_ext_stride, const int dst_stride, const int y_uv_hscale, const int y_uv_vscale, const int thr, const int neg_thr, const int *src_loc, const int max_val, const int blk_size, const bool isSingleBand, const uint8_t shift_bits, const int edge_clf, const uint8_t ccso_bo_only";
+specialize qw/ccso_filter_block_hbd_wo_buf avx2/;
 
-    if (aom_config("CONFIG_AV1_ENCODER") eq "yes") {
-          if (aom_config("CONFIG_CCSO_BO_ONLY_OPTION") eq "yes") {
-            add_proto qw/void ccso_filter_block_hbd_with_buf/, "const uint16_t *src_y, uint16_t *dst_yuv, const uint8_t *src_cls0, const uint8_t *src_cls1,
-            const int src_y_stride, const int dst_stride,
-            const int ccso_stride,
-            const int x, const int y,
-            const int pic_width, const int pic_height,
-            const int8_t *filter_offset, const int blk_size,
-            const int y_uv_hscale,  const int y_uv_vscale,
-            const int max_val, const uint8_t shift_bits,
-            const uint8_t ccso_bo_only";
-          }
-          else{
-            add_proto qw/void ccso_filter_block_hbd_with_buf/, "const uint16_t *src_y, uint16_t *dst_yuv, const uint8_t *src_cls0, const uint8_t *src_cls1,
-            const int src_y_stride, const int dst_stride,
-            const int ccso_stride,
-            const int x, const int y,
-            const int pic_width, const int pic_height,
-            const int8_t *filter_offset, const int blk_size,
-            const int y_uv_hscale,  const int y_uv_vscale,
-            const int max_val, const uint8_t shift_bits";
-          }
-      specialize qw/ccso_filter_block_hbd_with_buf avx2/;
+if (aom_config("CONFIG_AV1_ENCODER") eq "yes") {
+  add_proto qw/void ccso_filter_block_hbd_with_buf/, "const uint16_t *src_y, uint16_t *dst_yuv, const uint8_t *src_cls0, const uint8_t *src_cls1,
+  const int src_y_stride, const int dst_stride,
+  const int ccso_stride,
+  const int x, const int y,
+  const int pic_width, const int pic_height,
+  const int8_t *filter_offset, const int blk_size,
+  const int y_uv_hscale,  const int y_uv_vscale,
+  const int max_val, const uint8_t shift_bits,
+  const uint8_t ccso_bo_only";
+  specialize qw/ccso_filter_block_hbd_with_buf avx2/;
 
-      add_proto qw/uint64_t compute_distortion_block/, "const uint16_t *org, const int org_stride,
-                          const uint16_t *rec16, const int rec_stride, const int x, const int y,
-                          const int log2_filter_unit_size, const int height,
-                          const int width";
-      specialize qw/compute_distortion_block avx2/;
+  add_proto qw/uint64_t compute_distortion_block/, "const uint16_t *org, const int org_stride,
+                      const uint16_t *rec16, const int rec_stride, const int x, const int y,
+                      const int log2_filter_unit_size, const int height,
+                      const int width";
+  specialize qw/compute_distortion_block avx2/;
 
-      if (aom_config("CONFIG_CCSO_EDGE_CLF") eq "yes") {
-        add_proto qw/void ccso_derive_src_block/, "const uint16_t *src_y, uint8_t *const src_cls0,
-                              uint8_t *const src_cls1, const int src_y_stride, const int ccso_stride,
-                              const int x, const int y, const int pic_width, const int pic_height,
-                              const int y_uv_hscale, const int y_uv_vscale, const int qstep,
-                              const int neg_qstep, const int *src_loc, const int blk_size, const int edge_clf";
-      }
-      else {
-        add_proto qw/void ccso_derive_src_block/, "const uint16_t *src_y, uint8_t *const src_cls0,
-                              uint8_t *const src_cls1, const int src_y_stride, const int ccso_stride,
-                              const int x, const int y, const int pic_width, const int pic_height,
-                              const int y_uv_hscale, const int y_uv_vscale, const int qstep,
-                              const int neg_qstep, const int *src_loc, const int blk_size";
-      }
-      specialize qw/ccso_derive_src_block avx2/
-    }
-  }
+  add_proto qw/void ccso_derive_src_block/, "const uint16_t *src_y, uint8_t *const src_cls0,
+                        uint8_t *const src_cls1, const int src_y_stride, const int ccso_stride,
+                        const int x, const int y, const int pic_width, const int pic_height,
+                        const int y_uv_hscale, const int y_uv_vscale, const int qstep,
+                        const int neg_qstep, const int *src_loc, const int blk_size, const int edge_clf";
+  specialize qw/ccso_derive_src_block avx2/
 }
 
 # Prediction enhancement filter
diff --git a/av1/common/blockd.h b/av1/common/blockd.h
index cb09f52..62f864a 100644
--- a/av1/common/blockd.h
+++ b/av1/common/blockd.h
@@ -670,16 +670,12 @@
   int8_t cdef_strength : 4;
   /*! \brief chroma block info for sub-8x8 cases */
   CHROMA_REF_INFO chroma_ref_info;
-#if CONFIG_CCSO
-#if CONFIG_CCSO_EXT
   /*! \brief Whether to use cross-component sample offset for the Y plane. */
   uint8_t ccso_blk_y : 2;
-#endif
   /*! \brief Whether to use cross-component sample offset for the U plane. */
   uint8_t ccso_blk_u : 2;
   /*! \brief Whether to use cross-component sample offset for the V plane. */
   uint8_t ccso_blk_v : 2;
-#endif
   /**@}*/
 
 #if CONFIG_RD_DEBUG
@@ -2626,16 +2622,12 @@
    * Enable IST for current coding block.
    */
   uint8_t enable_ist;
-#if CONFIG_CCSO
-#if CONFIG_CCSO_EXT
   /** ccso blk y */
   uint8_t ccso_blk_y;
-#endif
   /** ccso blk u */
   uint8_t ccso_blk_u;
   /** ccso blk v */
   uint8_t ccso_blk_v;
-#endif
 
 #if CONFIG_CONTEXT_DERIVATION
   /** buffer to store AOM_PLANE_U txfm coefficient signs */
diff --git a/av1/common/ccso.c b/av1/common/ccso.c
index 7234347..e16fb2a 100644
--- a/av1/common/ccso.c
+++ b/av1/common/ccso.c
@@ -47,15 +47,8 @@
  * from the look-up table */
 void cal_filter_support(int *rec_luma_idx, const uint16_t *rec_y,
                         const uint8_t quant_step_size, const int inv_quant_step,
-                        const int *rec_idx
-#if CONFIG_CCSO_EDGE_CLF
-                        ,
-                        const int edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-) {
-#if CONFIG_CCSO_EDGE_CLF
+                        const int *rec_idx, const int edge_clf) {
   if (edge_clf == 0) {
-#endif  // CONFIG_CCSO_EDGE_CLF
     for (int i = 0; i < 2; i++) {
       int d = rec_y[rec_idx[i]] - rec_y[0];
       if (d > quant_step_size)
@@ -65,7 +58,6 @@
       else
         rec_luma_idx[i] = 1;
     }
-#if CONFIG_CCSO_EDGE_CLF
   } else {  // if (edge_clf == 1)
     for (int i = 0; i < 2; i++) {
       int d = rec_y[rec_idx[i]] - rec_y[0];
@@ -75,7 +67,6 @@
         rec_luma_idx[i] = 1;
     }
   }
-#endif  // CONFIG_CCSO_EDGE_CLF
 }
 
 /* Derive sample locations for CCSO */
@@ -112,48 +103,29 @@
   }
 }
 
-#if CONFIG_CCSO_EXT
-
 void ccso_filter_block_hbd_wo_buf_c(
     const uint16_t *src_y, uint16_t *dst_yuv, const int x, const int y,
     const int pic_width, const int pic_height, int *src_cls,
     const int8_t *offset_buf, const int src_y_stride, const int dst_stride,
     const int y_uv_hscale, const int y_uv_vscale, const int thr,
     const int neg_thr, const int *src_loc, const int max_val,
-    const int blk_size, const bool isSingleBand, const uint8_t shift_bits
-#if CONFIG_CCSO_EDGE_CLF
-    ,
-    const int edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_BO_ONLY_OPTION
-    ,
-    const uint8_t ccso_bo_only
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-) {
+    const int blk_size, const bool isSingleBand, const uint8_t shift_bits,
+    const int edge_clf, const uint8_t ccso_bo_only) {
   const int y_end = AOMMIN(pic_height - y, blk_size);
   const int x_end = AOMMIN(pic_width - x, blk_size);
   for (int y_start = 0; y_start < y_end; y_start++) {
     const int y_pos = y_start;
     for (int x_start = 0; x_start < x_end; x_start++) {
       const int x_pos = x + x_start;
-#if CONFIG_CCSO_BO_ONLY_OPTION
       if (!ccso_bo_only) {
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
         cal_filter_support(src_cls,
                            &src_y[(y_pos << y_uv_vscale) * src_y_stride +
                                   (x_pos << y_uv_hscale)],
-                           thr, neg_thr, src_loc
-#if CONFIG_CCSO_EDGE_CLF
-                           ,
-                           edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-        );
-#if CONFIG_CCSO_BO_ONLY_OPTION
+                           thr, neg_thr, src_loc, edge_clf);
       } else {
         src_cls[0] = 0;
         src_cls[1] = 0;
       }
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
       const int band_num = isSingleBand
                                ? 0
                                : src_y[(y_pos << y_uv_vscale) * src_y_stride +
@@ -172,12 +144,8 @@
                                const uint16_t *src_y, uint16_t *dst_yuv,
                                const int dst_stride, const uint8_t thr,
                                const uint8_t filter_sup,
-                               const uint8_t max_band_log2
-#if CONFIG_CCSO_EDGE_CLF
-                               ,
-                               const int edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-) {
+                               const uint8_t max_band_log2,
+                               const int edge_clf) {
   const CommonModeInfoParams *const mi_params = &cm->mi_params;
   const int ccso_ext_stride = xd->plane[0].dst.width + (CCSO_PADDING_SIZE << 1);
   const int pic_height = xd->plane[plane].dst.height;
@@ -200,36 +168,19 @@
               (x >> blk_log2);
       const bool use_ccso = mi_params->mi_grid_base[ccso_blk_idx]->ccso_blk_y;
       if (!use_ccso) continue;
-#if CONFIG_CCSO_BO_ONLY_OPTION
       if (cm->ccso_info.ccso_bo_only[plane]) {
         ccso_filter_block_hbd_wo_buf_c(
             src_y, dst_yuv, x, y, pic_width, pic_height, src_cls,
             cm->ccso_info.filter_offset[plane], ccso_ext_stride, dst_stride, 0,
-            0, thr, neg_thr, src_loc, max_val, blk_size, false, shift_bits
-#if CONFIG_CCSO_EDGE_CLF
-            ,
-            edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-            ,
-            cm->ccso_info.ccso_bo_only[plane]);
+            0, thr, neg_thr, src_loc, max_val, blk_size, false, shift_bits,
+            edge_clf, cm->ccso_info.ccso_bo_only[plane]);
       } else {
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
         ccso_filter_block_hbd_wo_buf(
             src_y, dst_yuv, x, y, pic_width, pic_height, src_cls,
             cm->ccso_info.filter_offset[plane], ccso_ext_stride, dst_stride, 0,
-            0, thr, neg_thr, src_loc, max_val, blk_size, false, shift_bits
-#if CONFIG_CCSO_EDGE_CLF
-            ,
-            edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_BO_ONLY_OPTION
-            ,
-            0
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-        );
-#if CONFIG_CCSO_BO_ONLY_OPTION
+            0, thr, neg_thr, src_loc, max_val, blk_size, false, shift_bits,
+            edge_clf, 0);
       }
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
     }
     dst_yuv += (dst_stride << blk_log2);
     src_y += (ccso_ext_stride << blk_log2);
@@ -241,12 +192,8 @@
                                const uint16_t *src_y, uint16_t *dst_yuv,
                                const int dst_stride, const uint8_t thr,
                                const uint8_t filter_sup,
-                               const uint8_t max_band_log2
-#if CONFIG_CCSO_EDGE_CLF
-                               ,
-                               const int edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-) {
+                               const uint8_t max_band_log2,
+                               const int edge_clf) {
   (void)max_band_log2;
   const CommonModeInfoParams *const mi_params = &cm->mi_params;
   const int ccso_ext_stride = xd->plane[0].dst.width + (CCSO_PADDING_SIZE << 1);
@@ -270,37 +217,19 @@
               (x >> blk_log2);
       const bool use_ccso = mi_params->mi_grid_base[ccso_blk_idx]->ccso_blk_y;
       if (!use_ccso) continue;
-#if CONFIG_CCSO_BO_ONLY_OPTION
       if (cm->ccso_info.ccso_bo_only[plane]) {
         ccso_filter_block_hbd_wo_buf_c(
             src_y, dst_yuv, x, y, pic_width, pic_height, src_cls,
             cm->ccso_info.filter_offset[plane], ccso_ext_stride, dst_stride, 0,
-            0, thr, neg_thr, src_loc, max_val, blk_size, true, shift_bits
-#if CONFIG_CCSO_EDGE_CLF
-            ,
-            edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-
-            ,
-            cm->ccso_info.ccso_bo_only[plane]);
+            0, thr, neg_thr, src_loc, max_val, blk_size, true, shift_bits,
+            edge_clf, cm->ccso_info.ccso_bo_only[plane]);
       } else {
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
         ccso_filter_block_hbd_wo_buf(
             src_y, dst_yuv, x, y, pic_width, pic_height, src_cls,
             cm->ccso_info.filter_offset[plane], ccso_ext_stride, dst_stride, 0,
-            0, thr, neg_thr, src_loc, max_val, blk_size, true, shift_bits
-#if CONFIG_CCSO_EDGE_CLF
-            ,
-            edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_BO_ONLY_OPTION
-            ,
-            0
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-        );
-#if CONFIG_CCSO_BO_ONLY_OPTION
+            0, thr, neg_thr, src_loc, max_val, blk_size, true, shift_bits,
+            edge_clf, 0);
       }
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
     }
     dst_yuv += (dst_stride << blk_log2);
     src_y += (ccso_ext_stride << blk_log2);
@@ -312,12 +241,8 @@
                                  const int plane, const uint16_t *src_y,
                                  uint16_t *dst_yuv, const int dst_stride,
                                  const uint8_t thr, const uint8_t filter_sup,
-                                 const uint8_t max_band_log2
-#if CONFIG_CCSO_EDGE_CLF
-                                 ,
-                                 const int edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-) {
+                                 const uint8_t max_band_log2,
+                                 const int edge_clf) {
   const CommonModeInfoParams *const mi_params = &cm->mi_params;
   const int ccso_ext_stride = xd->plane[0].dst.width + (CCSO_PADDING_SIZE << 1);
   const int pic_height = xd->plane[plane].dst.height;
@@ -344,38 +269,19 @@
           (plane == 1) ? mi_params->mi_grid_base[ccso_blk_idx]->ccso_blk_u
                        : mi_params->mi_grid_base[ccso_blk_idx]->ccso_blk_v;
       if (!use_ccso) continue;
-#if CONFIG_CCSO_BO_ONLY_OPTION
       if (cm->ccso_info.ccso_bo_only[plane]) {
         ccso_filter_block_hbd_wo_buf_c(
             src_y, dst_yuv, x, y, pic_width, pic_height, src_cls,
             cm->ccso_info.filter_offset[plane], ccso_ext_stride, dst_stride,
             y_uv_hscale, y_uv_vscale, thr, neg_thr, src_loc, max_val, blk_size,
-            false, shift_bits
-#if CONFIG_CCSO_EDGE_CLF
-            ,
-            edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-            ,
-            cm->ccso_info.ccso_bo_only[plane]);
+            false, shift_bits, edge_clf, cm->ccso_info.ccso_bo_only[plane]);
       } else {
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
         ccso_filter_block_hbd_wo_buf(
             src_y, dst_yuv, x, y, pic_width, pic_height, src_cls,
             cm->ccso_info.filter_offset[plane], ccso_ext_stride, dst_stride,
             y_uv_hscale, y_uv_vscale, thr, neg_thr, src_loc, max_val, blk_size,
-            false, shift_bits
-#if CONFIG_CCSO_EDGE_CLF
-            ,
-            edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_BO_ONLY_OPTION
-            ,
-            0
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-        );
-#if CONFIG_CCSO_BO_ONLY_OPTION
+            false, shift_bits, edge_clf, 0);
       }
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
     }
     dst_yuv += (dst_stride << blk_log2);
     src_y += (ccso_ext_stride << (blk_log2 + y_uv_vscale));
@@ -387,12 +293,8 @@
                                  const int plane, const uint16_t *src_y,
                                  uint16_t *dst_yuv, const int dst_stride,
                                  const uint8_t thr, const uint8_t filter_sup,
-                                 const uint8_t max_band_log2
-#if CONFIG_CCSO_EDGE_CLF
-                                 ,
-                                 const int edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-) {
+                                 const uint8_t max_band_log2,
+                                 const int edge_clf) {
   (void)max_band_log2;
   const CommonModeInfoParams *const mi_params = &cm->mi_params;
   const int ccso_ext_stride = xd->plane[0].dst.width + (CCSO_PADDING_SIZE << 1);
@@ -420,177 +322,24 @@
           (plane == 1) ? mi_params->mi_grid_base[ccso_blk_idx]->ccso_blk_u
                        : mi_params->mi_grid_base[ccso_blk_idx]->ccso_blk_v;
       if (!use_ccso) continue;
-#if CONFIG_CCSO_BO_ONLY_OPTION
       if (cm->ccso_info.ccso_bo_only[plane]) {
         ccso_filter_block_hbd_wo_buf_c(
             src_y, dst_yuv, x, y, pic_width, pic_height, src_cls,
             cm->ccso_info.filter_offset[plane], ccso_ext_stride, dst_stride,
             y_uv_hscale, y_uv_vscale, thr, neg_thr, src_loc, max_val, blk_size,
-            true, shift_bits
-#if CONFIG_CCSO_EDGE_CLF
-            ,
-            edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-            ,
-            cm->ccso_info.ccso_bo_only[plane]);
+            true, shift_bits, edge_clf, cm->ccso_info.ccso_bo_only[plane]);
       } else {
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
         ccso_filter_block_hbd_wo_buf(
             src_y, dst_yuv, x, y, pic_width, pic_height, src_cls,
             cm->ccso_info.filter_offset[plane], ccso_ext_stride, dst_stride,
             y_uv_hscale, y_uv_vscale, thr, neg_thr, src_loc, max_val, blk_size,
-            true, shift_bits
-#if CONFIG_CCSO_EDGE_CLF
-            ,
-            edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_BO_ONLY_OPTION
-            ,
-            0
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-        );
-#if CONFIG_CCSO_BO_ONLY_OPTION
+            true, shift_bits, edge_clf, 0);
       }
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
     }
     dst_yuv += (dst_stride << blk_log2);
     src_y += (ccso_ext_stride << (blk_log2 + y_uv_vscale));
   }
 }
-#endif  // CONFIG_CCSO_EXT
-
-#if !CONFIG_CCSO_EXT
-/* Apply CCSO for one filtering unit using c code (high bit-depth) */
-void ccso_filter_block_hbd_c(
-    const uint16_t *temp_rec_y_buf, uint16_t *rec_uv_16, const int x,
-    const int y, const int pic_width_c, const int pic_height_c,
-    int *rec_luma_idx, const int8_t *offset_buf,
-#if CONFIG_CCSO_EXT
-    const int shift_bits,
-#endif
-    const int *ccso_stride_idx, const int *dst_stride_idx,
-    const int y_uv_hori_scale, const int y_uv_vert_scale, const int pad_stride,
-    const int quant_step_size, const int inv_quant_step, const int *rec_idx,
-    const int maxval, const int filter_unit_size) {
-  int y_offset;
-  int x_offset;
-  if (y + filter_unit_size >= pic_height_c)
-    y_offset = pic_height_c - y;
-  else
-    y_offset = filter_unit_size;
-
-  if (x + filter_unit_size >= pic_width_c)
-    x_offset = pic_width_c - x;
-  else
-    x_offset = filter_unit_size;
-
-  for (int y_off = 0; y_off < y_offset; y_off++) {
-    for (int x_off = 0; x_off < x_offset; x_off++) {
-#if CONFIG_CCSO_EXT
-      const int band_num =
-          temp_rec_y_buf[((ccso_stride_idx[y_off] << y_uv_vert_scale) +
-                          ((x + x_off) << y_uv_hori_scale)) +
-                         pad_stride] >>
-          shift_bits;
-#endif
-      cal_filter_support(
-          rec_luma_idx,
-          &temp_rec_y_buf[((ccso_stride_idx[y_off] << y_uv_vert_scale) +
-                           ((x + x_off) << y_uv_hori_scale)) +
-                          pad_stride],
-          quant_step_size, inv_quant_step, rec_idx);
-      const int offset_val = offset_buf[
-#if CONFIG_CCSO_EXT
-          (band_num << 4) +
-#endif
-          (rec_luma_idx[0] << 2) + rec_luma_idx[1]];
-      rec_uv_16[dst_stride_idx[y_off] + x + x_off] = clamp(
-          offset_val + rec_uv_16[dst_stride_idx[y_off] + x + x_off], 0, maxval);
-    }
-  }
-}
-
-/* Apply CCSO for one color component (high bit-depth) */
-void apply_ccso_filter_hbd(AV1_COMMON *cm, MACROBLOCKD *xd, const int plane,
-                           const uint16_t *temp_rec_y_buf, uint16_t *rec_uv_16,
-                           const int dst_stride, const int8_t *filter_offset,
-                           const uint8_t quant_step_size,
-                           const uint8_t ext_filter_support) {
-  const CommonModeInfoParams *const mi_params = &cm->mi_params;
-  const int ccso_stride_ext = xd->plane[0].dst.width + (CCSO_PADDING_SIZE << 1);
-  const int pic_height_c = xd->plane[plane].dst.height;
-  const int pic_width_c = xd->plane[plane].dst.width;
-  int rec_luma_idx[2];
-  int inv_quant_step = quant_step_size * -1;
-  int rec_idx[2];
-  const int maxval = (1 << cm->seq_params.bit_depth) - 1;
-#if CONFIG_CCSO_EXT
-  const int shift_bits =
-      cm->seq_params.bit_depth - cm->ccso_info.max_band_log2[plane];
-#endif
-  derive_ccso_sample_pos(rec_idx, ccso_stride_ext, ext_filter_support);
-
-  const int8_t *offset_buf;
-  if (filter_offset == NULL) {
-#if CONFIG_CCSO_EXT
-    offset_buf = cm->ccso_info.filter_offset[plane];
-#else
-    offset_buf = cm->ccso_info.filter_offset[plane - 1];
-#endif
-  } else {
-    offset_buf = filter_offset;
-  }
-  const int log2_filter_unit_size =
-      plane > 0 ? CCSO_BLK_SIZE : CCSO_BLK_SIZE + 1;
-  const int filter_unit_size = 1 << log2_filter_unit_size;
-  int ccso_stride_ext_idx[1 << (CCSO_BLK_SIZE + 1)];
-  int dst_stride_idx[1 << (CCSO_BLK_SIZE + 1)];
-  for (int i = 0; i < filter_unit_size; i++) {
-    ccso_stride_ext_idx[i] = ccso_stride_ext * i;
-    dst_stride_idx[i] = dst_stride * i;
-  }
-  const int pad_stride =
-      CCSO_PADDING_SIZE * ccso_stride_ext + CCSO_PADDING_SIZE;
-  const int y_uv_hori_scale = xd->plane[plane].subsampling_x;
-  const int y_uv_vert_scale = xd->plane[plane].subsampling_y;
-  for (int y = 0; y < pic_height_c; y += filter_unit_size) {
-    for (int x = 0; x < pic_width_c; x += filter_unit_size) {
-      if (filter_offset == NULL) {
-        const int ccso_blk_idx =
-            (filter_unit_size >>
-             (MI_SIZE_LOG2 - xd->plane[plane].subsampling_y)) *
-                (y >> log2_filter_unit_size) * mi_params->mi_stride +
-            (filter_unit_size >>
-             (MI_SIZE_LOG2 - xd->plane[plane].subsampling_x)) *
-                (x >> log2_filter_unit_size);
-
-        const bool use_ccso =
-            (plane == 1) ? mi_params->mi_grid_base[ccso_blk_idx]->ccso_blk_u
-#if CONFIG_CCSO_EXT
-            : (plane == 0) ? mi_params->mi_grid_base[ccso_blk_idx]->ccso_blk_y
-                           : mi_params->mi_grid_base[ccso_blk_idx]->ccso_blk_v;
-#else
-                         : mi_params->mi_grid_base[ccso_blk_idx]->ccso_blk_v;
-#endif
-        if (!use_ccso) continue;
-      }
-
-      ccso_filter_block_hbd(temp_rec_y_buf, rec_uv_16, x, y, pic_width_c,
-                            pic_height_c, rec_luma_idx, offset_buf,
-#if CONFIG_CCSO_EXT
-                            shift_bits,
-#endif
-                            ccso_stride_ext_idx, dst_stride_idx,
-                            y_uv_hori_scale, y_uv_vert_scale, pad_stride,
-                            quant_step_size, inv_quant_step, rec_idx, maxval,
-                            filter_unit_size);
-    }
-    temp_rec_y_buf +=
-        (ccso_stride_ext << (log2_filter_unit_size + y_uv_vert_scale));
-    rec_uv_16 += (dst_stride << log2_filter_unit_size);
-  }
-}
-#endif  // !CONFIG_CCSO_EXT
 
 /* Apply CCSO for one frame */
 void ccso_frame(YV12_BUFFER_CONFIG *frame, AV1_COMMON *cm, MACROBLOCKD *xd,
@@ -599,7 +348,6 @@
   av1_setup_dst_planes(xd->plane, frame, 0, 0, 0, num_planes, NULL);
 
   const uint8_t quant_sz[4] = { 16, 8, 32, 64 };
-#if CONFIG_CCSO_EXT
   for (int plane = 0; plane < num_planes; plane++) {
     const int dst_stride = xd->plane[plane].dst.stride;
     const uint8_t quant_step_size = quant_sz[cm->ccso_info.quant_idx[plane]];
@@ -613,23 +361,7 @@
       apply_ccso_filter_func(
           cm, xd, plane, ext_rec_y, &(xd->plane[plane].dst.buf)[0], dst_stride,
           quant_step_size, cm->ccso_info.ext_filter_support[plane],
-          cm->ccso_info.max_band_log2[plane]
-#if CONFIG_CCSO_EDGE_CLF
-          ,
-          cm->ccso_info.edge_clf[plane]
-#endif  // CONFIG_CCSO_EDGE_CLF
-      );
+          cm->ccso_info.max_band_log2[plane], cm->ccso_info.edge_clf[plane]);
     }
-#else
-  for (int plane = 1; plane < 3; plane++) {
-    const int dst_stride = xd->plane[plane].dst.stride;
-    const uint8_t quant_step_size =
-        quant_sz[cm->ccso_info.quant_idx[plane - 1]];
-    if (cm->ccso_info.ccso_enable[plane - 1]) {
-      apply_ccso_filter_hbd(
-          cm, xd, plane, ext_rec_y, &(xd->plane[plane].dst.buf)[0], dst_stride,
-          NULL, quant_step_size, cm->ccso_info.ext_filter_support[plane - 1]);
-    }
-#endif
   }
 }
diff --git a/av1/common/ccso.h b/av1/common/ccso.h
index 1486bd6..2e24ee7 100644
--- a/av1/common/ccso.h
+++ b/av1/common/ccso.h
@@ -24,9 +24,7 @@
 #include "aom_ports/mem.h"
 #include "av1/common/av1_common_int.h"
 
-#if CONFIG_CCSO_EDGE_CLF
 static const int edge_clf_to_edge_interval[2] = { 3, 2 };
-#endif  // CONFIG_CCSO_EDGE_CLF
 
 #ifdef __cplusplus
 extern "C" {
@@ -36,36 +34,18 @@
 
 void cal_filter_support(int *rec_luma_idx, const uint16_t *rec_y,
                         const uint8_t quant_step_size, const int inv_quant_step,
-                        const int *rec_idx
-#if CONFIG_CCSO_EDGE_CLF
-                        ,
-                        const int edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-);
-#if CONFIG_CCSO_EXT
+                        const int *rec_idx, const int edge_clf);
+
 void derive_ccso_sample_pos(int *rec_idx, const int ccso_stride,
                             const uint8_t ext_filter_support);
-#else
 
-void apply_ccso_filter_hbd(AV1_COMMON *cm, MACROBLOCKD *xd, const int plane,
-                           const uint16_t *temp_rec_y_buf, uint16_t *rec_uv_16,
-                           const int dst_stride, const int8_t *filter_offset,
-                           const uint8_t quant_step_size,
-                           const uint8_t ext_filter_support);
-#endif  // CONFIG_CCSO_EXT
-#if CONFIG_CCSO_EXT
 /* Apply CCSO on one color component */
 typedef void (*CCSO_FILTER_FUNC)(AV1_COMMON *cm, MACROBLOCKD *xd,
                                  const int plane, const uint16_t *src_y,
                                  uint16_t *dst_yuv, const int dst_stride,
                                  const uint8_t thr, const uint8_t filter_sup,
-                                 const uint8_t max_band_log2
-#if CONFIG_CCSO_EDGE_CLF
-                                 ,
-                                 const int edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-);
-#endif  // CONFIG_CCSO_EXT
+                                 const uint8_t max_band_log2,
+                                 const int edge_clf);
 
 void ccso_frame(YV12_BUFFER_CONFIG *frame, AV1_COMMON *cm, MACROBLOCKD *xd,
                 uint16_t *ext_rec_y);
diff --git a/av1/common/entropy.c b/av1/common/entropy.c
index 9879ca0..b9a003b 100644
--- a/av1/common/entropy.c
+++ b/av1/common/entropy.c
@@ -345,11 +345,9 @@
   RESET_CDF_COUNTER(fc->filter_intra_mode_cdf, FILTER_INTRA_MODES);
   RESET_CDF_COUNTER(fc->switchable_flex_restore_cdf, 2);
   RESET_CDF_COUNTER(fc->wiener_restore_cdf, 2);
-#if CONFIG_CCSO_EXT
   for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
     RESET_CDF_COUNTER(fc->ccso_cdf[plane], 2);
   }
-#endif
   RESET_CDF_COUNTER(fc->sgrproj_restore_cdf, 2);
   RESET_CDF_COUNTER(fc->wienerns_restore_cdf, 2);
   RESET_CDF_COUNTER(fc->wienerns_length_cdf, 2);
diff --git a/av1/common/entropymode.c b/av1/common/entropymode.c
index a204c62..bbb2868 100644
--- a/av1/common/entropymode.c
+++ b/av1/common/entropymode.c
@@ -7368,7 +7368,6 @@
     11570) };
 #endif  // CONFIG_ENTROPY_PARA
 
-#if CONFIG_CCSO_EXT
 #if CONFIG_ENTROPY_PARA
 static const aom_cdf_prob default_ccso_cdf[3][CDF_SIZE(2)] = {
   { AOM_CDF2(12979), 37 },
@@ -7378,7 +7377,6 @@
 #else
 static const aom_cdf_prob default_ccso_cdf[CDF_SIZE(2)] = { AOM_CDF2(11570) };
 #endif  // CONFIG_ENTROPY_PARA
-#endif
 
 #if CONFIG_ENTROPY_PARA
 static const aom_cdf_prob default_sgrproj_restore_cdf[CDF_SIZE(2)] = {
@@ -8065,7 +8063,6 @@
   av1_copy(fc->switchable_flex_restore_cdf,
            default_switchable_flex_restore_cdf);
   av1_copy(fc->wiener_restore_cdf, default_wiener_restore_cdf);
-#if CONFIG_CCSO_EXT
   for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
 #if CONFIG_ENTROPY_PARA
     av1_copy(fc->ccso_cdf[plane], default_ccso_cdf[plane]);
@@ -8073,7 +8070,6 @@
     av1_copy(fc->ccso_cdf[plane], default_ccso_cdf);
 #endif  // CONFIG_ENTROPY_PARA
   }
-#endif
   av1_copy(fc->sgrproj_restore_cdf, default_sgrproj_restore_cdf);
   av1_copy(fc->wienerns_restore_cdf, default_wienerns_restore_cdf);
   av1_copy(fc->wienerns_length_cdf, default_wienerns_length_cdf);
diff --git a/av1/common/entropymode.h b/av1/common/entropymode.h
index 4e34c93..0b3b24d 100644
--- a/av1/common/entropymode.h
+++ b/av1/common/entropymode.h
@@ -443,9 +443,7 @@
   aom_cdf_prob switchable_flex_restore_cdf[MAX_LR_FLEX_SWITCHABLE_BITS]
                                           [MAX_LR_FLEX_MB_PLANE][CDF_SIZE(2)];
   aom_cdf_prob wiener_restore_cdf[CDF_SIZE(2)];
-#if CONFIG_CCSO_EXT
   aom_cdf_prob ccso_cdf[3][CDF_SIZE(2)];
-#endif
   aom_cdf_prob sgrproj_restore_cdf[CDF_SIZE(2)];
   aom_cdf_prob wienerns_restore_cdf[CDF_SIZE(2)];
   aom_cdf_prob wienerns_length_cdf[2][CDF_SIZE(2)];
diff --git a/av1/common/enums.h b/av1/common/enums.h
index b3015bf..b4c96b6 100644
--- a/av1/common/enums.h
+++ b/av1/common/enums.h
@@ -97,21 +97,10 @@
 #endif  // CONFIG_IBP_WEIGHT
 
 // Cross-Component Sample Offset (CCSO)
-#if CONFIG_CCSO
 #define CCSO_BLK_SIZE 7
 #define CCSO_PADDING_SIZE 5
-#if CONFIG_CCSO_EXT
-#if CONFIG_CCSO_BO_ONLY_OPTION
 #define CCSO_BAND_NUM 128
-#else
-#define CCSO_BAND_NUM 8
-#endif
 #define CCSO_NUM_COMPONENTS 3
-#else
-#define CCSO_BAND_NUM 1
-#define CCSO_NUM_COMPONENTS 2
-#endif
-#endif
 
 #define BUGFIX_AMVD_AMVR 1
 // Supported scale modes for JOINT_NEWMV
diff --git a/av1/common/x86/highbd_ccso_avx2.c b/av1/common/x86/highbd_ccso_avx2.c
index bdc9a52..dffc9fa 100644
--- a/av1/common/x86/highbd_ccso_avx2.c
+++ b/av1/common/x86/highbd_ccso_avx2.c
@@ -15,7 +15,6 @@
 
 #include "av1/common/ccso.h"
 
-#if CONFIG_CCSO_EDGE_CLF
 __m256i cal_filter_support_edge0_avx2(__m256i d, __m256i cmp_thr1,
                                       __m256i cmp_thr2, __m256i all1,
                                       __m256i cmp_idxa, __m256i cmp_idxb,
@@ -42,7 +41,6 @@
   __m256i idx = _mm256_add_epi16(idx_mask1a, idx_mask1b);
   return idx;
 }
-#endif  // CONFIG_CCSO_EDGE_CLF
 
 void ccso_filter_block_hbd_wo_buf_avx2(
     const uint16_t *src_y, uint16_t *dts_yuv, const int x, const int y,
@@ -54,20 +52,9 @@
     // const int pad_stride, no pad size anymore
     const int quant_step_size, const int inv_quant_step, const int *rec_idx,
     const int max_val, const int blk_size, const bool isSingleBand,
-    const uint8_t shift_bits
-#if CONFIG_CCSO_EDGE_CLF
-    ,
-    const int edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_BO_ONLY_OPTION
-    ,
-    const uint8_t ccso_bo_only
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-) {
-#if CONFIG_CCSO_BO_ONLY_OPTION
+    const uint8_t shift_bits, const int edge_clf, const uint8_t ccso_bo_only) {
   assert(ccso_bo_only == 0);
   (void)ccso_bo_only;
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
   __m256i cmp_thr1 = _mm256_set1_epi16(quant_step_size);
   __m256i cmp_thr2 = _mm256_set1_epi16(inv_quant_step);
   __m256i cmp_idxa = _mm256_set1_epi16(2);  // d > quant_step_size
@@ -178,8 +165,6 @@
         rec_cur_final = rec_curlo;
       }
       __m256i dst_rec = _mm256_loadu_si256((const __m256i *)(dst_rec2 + xOff));
-
-#if CONFIG_CCSO_EDGE_CLF
       __m256i idx1, idx2;
       if (edge_clf == 0) {
         idx1 = cal_filter_support_edge0_avx2(d1, cmp_thr1, cmp_thr2, all1,
@@ -192,29 +177,6 @@
         idx2 = cal_filter_support_edge1_avx2(d2, cmp_thr2, all1, cmp_idxb,
                                              cmp_idxc);
       }
-#else
-      __m256i idx_mask1a = _mm256_cmpgt_epi16(d1, cmp_thr1);
-      __m256i idx_mask1b = _mm256_cmpgt_epi16(cmp_thr2, d1);
-      __m256i idx_mask1c = _mm256_xor_si256(idx_mask1a, idx_mask1b);
-      idx_mask1c = _mm256_xor_si256(idx_mask1c, all1);
-      idx_mask1a = _mm256_and_si256(idx_mask1a, cmp_idxa);
-      idx_mask1b = _mm256_and_si256(idx_mask1b, cmp_idxb);
-      idx_mask1c = _mm256_and_si256(idx_mask1c, cmp_idxc);
-
-      __m256i idx1 = _mm256_add_epi16(idx_mask1a, idx_mask1b);
-      idx1 = _mm256_add_epi16(idx1, idx_mask1c);
-
-      __m256i idx_mask2a = _mm256_cmpgt_epi16(d2, cmp_thr1);
-      __m256i idx_mask2b = _mm256_cmpgt_epi16(cmp_thr2, d2);
-      __m256i idx_mask2c = _mm256_xor_si256(idx_mask2a, idx_mask2b);
-      idx_mask2c = _mm256_xor_si256(idx_mask2c, all1);
-      idx_mask2a = _mm256_and_si256(idx_mask2a, cmp_idxa);
-      idx_mask2b = _mm256_and_si256(idx_mask2b, cmp_idxb);
-      idx_mask2c = _mm256_and_si256(idx_mask2c, cmp_idxc);
-
-      __m256i idx2 = _mm256_add_epi16(idx_mask2a, idx_mask2b);
-      idx2 = _mm256_add_epi16(idx2, idx_mask2c);
-#endif  // CONFIG_CCSO_EDGE_CLF
 
       __m256i offset;
       // const int band_num = src_y[x_pos] >> shift_bits;
@@ -262,12 +224,7 @@
       cal_filter_support(rec_luma_idx,
                          &src_y[((yOff << y_uv_vscale) * src_y_stride +
                                  ((x + xOff) << y_uv_hscale))],
-                         quant_step_size, inv_quant_step, rec_idx
-#if CONFIG_CCSO_EDGE_CLF
-                         ,
-                         edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-      );
+                         quant_step_size, inv_quant_step, rec_idx, edge_clf);
       const int band_num = isSingleBand
                                ? 0
                                : src_y[((yOff << y_uv_vscale) * src_y_stride +
@@ -288,12 +245,8 @@
                                 const int pic_width, const int pic_height,
                                 const int y_uv_hscale, const int y_uv_vscale,
                                 const int qstep, const int neg_qstep,
-                                const int *src_loc, const int blk_size
-#if CONFIG_CCSO_EDGE_CLF
-                                ,
-                                const int edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-) {
+                                const int *src_loc, const int blk_size,
+                                const int edge_clf) {
   const int quant_step_size = qstep;
   const int inv_quant_step = neg_qstep;
   __m256i cmp_thr1 = _mm256_set1_epi16(quant_step_size);
@@ -405,7 +358,6 @@
         d2 = _mm256_sub_epi16(rec_tap2lo, rec_curlo);
       }
 
-#if CONFIG_CCSO_EDGE_CLF
       __m256i idx1, idx2;
       if (edge_clf == 0) {
         idx1 = cal_filter_support_edge0_avx2(d1, cmp_thr1, cmp_thr2, all1,
@@ -418,29 +370,6 @@
         idx2 = cal_filter_support_edge1_avx2(d2, cmp_thr2, all1, cmp_idxb,
                                              cmp_idxc);
       }
-#else
-      __m256i idx_mask1a = _mm256_cmpgt_epi16(d1, cmp_thr1);
-      __m256i idx_mask1b = _mm256_cmpgt_epi16(cmp_thr2, d1);
-      __m256i idx_mask1c = _mm256_xor_si256(idx_mask1a, idx_mask1b);
-      idx_mask1c = _mm256_xor_si256(idx_mask1c, all1);
-      idx_mask1a = _mm256_and_si256(idx_mask1a, cmp_idxa);
-      idx_mask1b = _mm256_and_si256(idx_mask1b, cmp_idxb);
-      idx_mask1c = _mm256_and_si256(idx_mask1c, cmp_idxc);
-
-      __m256i idx1 = _mm256_add_epi16(idx_mask1a, idx_mask1b);
-      idx1 = _mm256_add_epi16(idx1, idx_mask1c);
-
-      __m256i idx_mask2a = _mm256_cmpgt_epi16(d2, cmp_thr1);
-      __m256i idx_mask2b = _mm256_cmpgt_epi16(cmp_thr2, d2);
-      __m256i idx_mask2c = _mm256_xor_si256(idx_mask2a, idx_mask2b);
-      idx_mask2c = _mm256_xor_si256(idx_mask2c, all1);
-      idx_mask2a = _mm256_and_si256(idx_mask2a, cmp_idxa);
-      idx_mask2b = _mm256_and_si256(idx_mask2b, cmp_idxb);
-      idx_mask2c = _mm256_and_si256(idx_mask2c, cmp_idxc);
-
-      __m256i idx2 = _mm256_add_epi16(idx_mask2a, idx_mask2b);
-      idx2 = _mm256_add_epi16(idx2, idx_mask2c);
-#endif  // CONFIG_CCSO_EDGE_CLF
 
       idx1 = _mm256_packs_epi16(idx1, idx1);
       idx1 = _mm256_permutevar8x32_epi32(idx1, masksub2);
@@ -479,12 +408,7 @@
       cal_filter_support(src_cls,
                          &src_y[((yOff << y_uv_vscale) * src_y_stride +
                                  ((x + xOff) << y_uv_hscale))],
-                         quant_step_size, inv_quant_step, src_loc
-#if CONFIG_CCSO_EDGE_CLF
-                         ,
-                         edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-      );
+                         quant_step_size, inv_quant_step, src_loc, edge_clf);
       src_cls0[(yOff << y_uv_vscale) * ccso_stride +
                ((x + xOff) << y_uv_hscale)] = src_cls[0];
       src_cls1[(yOff << y_uv_vscale) * ccso_stride +
@@ -499,15 +423,8 @@
     const int ccso_stride, const int x, const int y, const int pic_width,
     const int pic_height, const int8_t *filter_offset, const int blk_size,
     const int y_uv_hscale, const int y_uv_vscale, const int max_val,
-    const uint8_t shift_bits
-#if CONFIG_CCSO_BO_ONLY_OPTION
-    ,
-    const uint8_t ccso_bo_only
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-) {
-#if CONFIG_CCSO_BO_ONLY_OPTION
+    const uint8_t shift_bits, const uint8_t ccso_bo_only) {
   (void)ccso_bo_only;
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
   __m256i all0 = _mm256_set1_epi16(0);
   __m256i allmax = _mm256_set1_epi16(((short)max_val));
   __m128i shufsub =
diff --git a/av1/decoder/decodeframe.c b/av1/decoder/decodeframe.c
index 83921ea..2c40293 100644
--- a/av1/decoder/decodeframe.c
+++ b/av1/decoder/decodeframe.c
@@ -40,9 +40,7 @@
 
 #include "av1/common/alloccommon.h"
 #include "av1/common/cdef.h"
-#if CONFIG_CCSO
 #include "av1/common/ccso.h"
-#endif
 #include "av1/common/cfl.h"
 #if CONFIG_INSPECTION
 #include "av1/decoder/inspection.h"
@@ -3625,8 +3623,6 @@
   }
 }
 
-#if CONFIG_CCSO
-#if CONFIG_CCSO_EDGE_CLF
 // read offset idx using truncated unary coding
 static AOM_INLINE int read_ccso_offset_idx(struct aom_read_bit_buffer *rb) {
   int offset_idx = 0;
@@ -3637,32 +3633,22 @@
   }
   return offset_idx;
 }
-#endif  // CONFIG_CCSO_EDGE_CLF
 static AOM_INLINE void setup_ccso(AV1_COMMON *cm,
                                   struct aom_read_bit_buffer *rb) {
   if (is_global_intrabc_allowed(cm)) return;
-#if CONFIG_CCSO_EXT
   const int ccso_offset[8] = { 0, 1, -1, 3, -3, 7, -7, -10 };
 #if CONFIG_D143_CCSO_FM_FLAG
   cm->ccso_info.ccso_frame_flag = aom_rb_read_literal(rb, 1);
   if (cm->ccso_info.ccso_frame_flag) {
 #endif  // CONFIG_D143_CCSO_FM_FLAG
     for (int plane = 0; plane < av1_num_planes(cm); plane++) {
-#else
-  const int ccso_offset[8] = { 0, 1, -1, 3, -3, 5, -5, -7 };
-  for (int plane = 0; plane < 2; plane++) {
-#endif
       cm->ccso_info.ccso_enable[plane] = aom_rb_read_literal(rb, 1);
       if (cm->ccso_info.ccso_enable[plane]) {
-#if CONFIG_CCSO_BO_ONLY_OPTION
         cm->ccso_info.ccso_bo_only[plane] = aom_rb_read_literal(rb, 1);
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
 #if !CONFIG_CCSO_SIGFIX
         cm->ccso_info.quant_idx[plane] = aom_rb_read_literal(rb, 2);
         cm->ccso_info.ext_filter_support[plane] = aom_rb_read_literal(rb, 3);
 #endif  // !CONFIG_CCSO_SIGFIX
-#if CONFIG_CCSO_EXT
-#if CONFIG_CCSO_BO_ONLY_OPTION
         if (cm->ccso_info.ccso_bo_only[plane]) {
 #if CONFIG_CCSO_SIGFIX
           cm->ccso_info.quant_idx[plane] = 0;
@@ -3678,60 +3664,34 @@
 #endif  // CONFIG_CCSO_SIGFIX
           cm->ccso_info.max_band_log2[plane] = aom_rb_read_literal(rb, 2);
         }
-#else
-      cm->ccso_info.max_band_log2[plane] = aom_rb_read_literal(rb, 2);
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
         const int max_band = 1 << cm->ccso_info.max_band_log2[plane];
-#endif
-#if CONFIG_CCSO_EDGE_CLF
 #if !CONFIG_CCSO_SIGFIX
         cm->ccso_info.edge_clf[plane] = aom_rb_read_bit(rb);
 #endif  // !CONFIG_CCSO_SIGFIX
         const int edge_clf = cm->ccso_info.edge_clf[plane];
         const int max_edge_interval = edge_clf_to_edge_interval[edge_clf];
-#if CONFIG_CCSO_BO_ONLY_OPTION
         const int num_edge_offset_intervals =
             cm->ccso_info.ccso_bo_only[plane] ? 1 : max_edge_interval;
         for (int d0 = 0; d0 < num_edge_offset_intervals; d0++) {
           for (int d1 = 0; d1 < num_edge_offset_intervals; d1++) {
-#else
-      for (int d0 = 0; d0 < max_edge_interval; d0++) {
-        for (int d1 = 0; d1 < max_edge_interval; d1++) {
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-#else
-      for (int d0 = 0; d0 < CCSO_INPUT_INTERVAL; d0++) {
-        for (int d1 = 0; d1 < CCSO_INPUT_INTERVAL; d1++) {
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if !CONFIG_CCSO_EXT
-            const int lut_idx_ext = (d0 << 2) + d1;
-#else
-          for (int band_num = 0; band_num < max_band; band_num++) {
-            const int lut_idx_ext = (band_num << 4) + (d0 << 2) + d1;
-#endif
-#if CONFIG_CCSO_EDGE_CLF
-            const int offset_idx = read_ccso_offset_idx(rb);
-#else
-            const int offset_idx = aom_rb_read_literal(rb, 3);
-#endif  // CONFIG_CCSO_EDGE_CLF
-            cm->ccso_info.filter_offset[plane][lut_idx_ext] =
-                ccso_offset[offset_idx];
+            for (int band_num = 0; band_num < max_band; band_num++) {
+              const int lut_idx_ext = (band_num << 4) + (d0 << 2) + d1;
+              const int offset_idx = read_ccso_offset_idx(rb);
+              cm->ccso_info.filter_offset[plane][lut_idx_ext] =
+                  ccso_offset[offset_idx];
+            }
           }
-#if CONFIG_CCSO_EXT
         }
-#endif
       }
     }
-  }
 #if CONFIG_D143_CCSO_FM_FLAG
-}
-else {
-  cm->ccso_info.ccso_enable[0] = 0;
-  cm->ccso_info.ccso_enable[1] = 0;
-  cm->ccso_info.ccso_enable[2] = 0;
-}
+  } else {
+    cm->ccso_info.ccso_enable[0] = 0;
+    cm->ccso_info.ccso_enable[1] = 0;
+    cm->ccso_info.ccso_enable[2] = 0;
+  }
 #endif  // CONFIG_D143_CCSO_FM_FLAG
 }
-#endif
 
 static INLINE int read_delta_q(struct aom_read_bit_buffer *rb) {
   return aom_rb_read_bit(rb) ? aom_rb_read_inv_signed_literal(rb, 6) : 0;
@@ -5597,7 +5557,7 @@
 #if CONFIG_THROUGHPUT_ANALYSIS
     aom_accounting_cal_total(pbi);
 #else
-      aom_accounting_dump(&pbi->accounting);
+    aom_accounting_dump(&pbi->accounting);
 #endif  // CONFIG_THROUGHPUT_ANALYSIS
     aom_accounting_reset(&pbi->accounting);
   }
@@ -6504,9 +6464,7 @@
   seq_params->enable_imp_msk_bld = aom_rb_read_bit(rb);
 #endif  // CONFIG_D071_IMP_MSK_BLD
   seq_params->enable_fsc = aom_rb_read_bit(rb);
-#if CONFIG_CCSO
   seq_params->enable_ccso = aom_rb_read_bit(rb);
-#endif
   seq_params->enable_pef = aom_rb_read_bit(rb);
 #if CONFIG_LF_SUB_PU
   seq_params->enable_lf_sub_pu = aom_rb_read_bit(rb);
@@ -6516,7 +6474,7 @@
 #if CONFIG_LF_SUB_PU
       seq_params->enable_lf_sub_pu
 #else
-        seq_params->enable_pef
+      seq_params->enable_pef
 #endif  // CONFIG_LF_SUB_PU
   ) {
     seq_params->enable_tip_explicit_qp = aom_rb_read_bit(rb);
@@ -6695,8 +6653,8 @@
       const int our_ref_order_hint = buf->display_order_hint;
       const int their_ref_order_hint = buf->ref_display_order_hint[their_ref];
 #else
-        const int our_ref_order_hint = buf->order_hint;
-        const int their_ref_order_hint = buf->ref_order_hints[their_ref];
+      const int our_ref_order_hint = buf->order_hint;
+      const int their_ref_order_hint = buf->ref_order_hints[their_ref];
 #endif  // CONFIG_EXPLICIT_TEMPORAL_DIST_CALC
       cm->base_global_motion_model = buf->global_motion[their_ref];
       cm->base_global_motion_distance =
@@ -6715,8 +6673,8 @@
       const int ref_order_hint = ref_buf->display_order_hint;
       const int cur_order_hint = cm->cur_frame->display_order_hint;
 #else
-        const int ref_order_hint = ref_buf->order_hint;
-        const int cur_order_hint = cm->cur_frame->order_hint;
+      const int ref_order_hint = ref_buf->order_hint;
+      const int cur_order_hint = cm->cur_frame->order_hint;
 #endif  // CONFIG_EXPLICIT_TEMPORAL_DIST_CALC
       temporal_distance = get_relative_dist(&seq_params->order_hint_info,
                                             cur_order_hint, ref_order_hint);
@@ -8020,11 +7978,9 @@
   if (!features->all_lossless && seq_params->enable_restoration) {
     decode_restoration_mode(cm, rb);
   }
-#if CONFIG_CCSO
   if (!features->coded_lossless && seq_params->enable_ccso) {
     setup_ccso(cm, rb);
   }
-#endif
 
   if (features->coded_lossless || !cm->seq_params.enable_parity_hiding)
     features->allow_parity_hiding = false;
@@ -8368,14 +8324,10 @@
       }
     }
 
-#if CONFIG_CCSO
     const int use_ccso =
         !pbi->skip_loop_filter && !cm->features.coded_lossless &&
-        (cm->ccso_info.ccso_enable[0] || cm->ccso_info.ccso_enable[1]
-#if CONFIG_CCSO_EXT
-         || cm->ccso_info.ccso_enable[2]
-#endif
-        );
+        (cm->ccso_info.ccso_enable[0] || cm->ccso_info.ccso_enable[1] ||
+         cm->ccso_info.ccso_enable[2]);
     uint16_t *ext_rec_y;
     if (use_ccso) {
       av1_setup_dst_planes(xd->plane, &cm->cur_frame->buf, 0, 0, 0, num_planes,
@@ -8390,33 +8342,20 @@
         int pic_height = xd->plane[pli].dst.height;
         int pic_width = xd->plane[pli].dst.width;
         const int dst_stride = xd->plane[pli].dst.stride;
-#if CONFIG_CCSO_EXT
         ext_rec_y += CCSO_PADDING_SIZE * ccso_stride_ext + CCSO_PADDING_SIZE;
-#endif
         for (int r = 0; r < pic_height; ++r) {
           for (int c = 0; c < pic_width; ++c) {
-#if CONFIG_CCSO_EXT
             ext_rec_y[c] = xd->plane[pli].dst.buf[c];
-#else
-              ext_rec_y[(r + CCSO_PADDING_SIZE) * ccso_stride_ext + c +
-                        CCSO_PADDING_SIZE] =
-                  xd->plane[pli].dst.buf[r * dst_stride + c];
-#endif
           }
-#if CONFIG_CCSO_EXT
           ext_rec_y += ccso_stride_ext;
           xd->plane[0].dst.buf += dst_stride;
         }
         ext_rec_y -= CCSO_PADDING_SIZE * ccso_stride_ext + CCSO_PADDING_SIZE;
         ext_rec_y -= pic_height * ccso_stride_ext;
         xd->plane[0].dst.buf -= pic_height * ccso_stride_ext;
-#else
-          }
-#endif
       }
       extend_ccso_border(ext_rec_y, CCSO_PADDING_SIZE, xd);
     }
-#endif
 
     const int do_loop_restoration =
         cm->rst_info[0].frame_restoration_type != RESTORE_NONE ||
@@ -8434,10 +8373,7 @@
     const int do_superres = av1_superres_scaled(cm);
 
     const int optimized_loop_restoration =
-#if CONFIG_CCSO
-        !use_ccso &&
-#endif
-        !do_cdef && !do_superres;
+        !use_ccso && !do_cdef && !do_superres;
 
     if (!optimized_loop_restoration) {
       if (do_loop_restoration)
@@ -8448,12 +8384,10 @@
         av1_cdef_frame(&pbi->common.cur_frame->buf, cm, &pbi->dcb.xd);
       }
 
-#if CONFIG_CCSO
       if (use_ccso) {
         ccso_frame(&cm->cur_frame->buf, cm, xd, ext_rec_y);
         aom_free(ext_rec_y);
       }
-#endif
 
       superres_post_decode(pbi);
 
diff --git a/av1/decoder/decodemv.c b/av1/decoder/decodemv.c
index 69589e6..f4ec8ab 100644
--- a/av1/decoder/decodemv.c
+++ b/av1/decoder/decodemv.c
@@ -90,7 +90,6 @@
   }
 }
 
-#if CONFIG_CCSO
 static void read_ccso(AV1_COMMON *cm, aom_reader *r, MACROBLOCKD *const xd) {
   if (cm->features.coded_lossless) return;
   if (is_global_intrabc_allowed(cm)) return;
@@ -102,7 +101,6 @@
   const int blk_size_x =
       (1 << (CCSO_BLK_SIZE + xd->plane[1].subsampling_x - MI_SIZE_LOG2)) - 1;
 
-#if CONFIG_CCSO_EXT
   if (!(mi_row & blk_size_y) && !(mi_col & blk_size_x) &&
       cm->ccso_info.ccso_enable[0]) {
     const int blk_idc =
@@ -113,17 +111,11 @@
                        (mi_col & ~blk_size_x)]
         ->ccso_blk_y = blk_idc;
   }
-#endif
 
   if (!(mi_row & blk_size_y) && !(mi_col & blk_size_x) &&
-#if CONFIG_CCSO_EXT
       cm->ccso_info.ccso_enable[1]) {
     const int blk_idc =
         aom_read_symbol(r, xd->tile_ctx->ccso_cdf[1], 2, ACCT_INFO("blk_idc"));
-#else
-      cm->ccso_info.ccso_enable[0]) {
-    const int blk_idc = aom_read_bit(r, ACCT_INFO("blk_idc"));
-#endif
     xd->ccso_blk_u = blk_idc;
     mi_params
         ->mi_grid_base[(mi_row & ~blk_size_y) * mi_params->mi_stride +
@@ -132,14 +124,9 @@
   }
 
   if (!(mi_row & blk_size_y) && !(mi_col & blk_size_x) &&
-#if CONFIG_CCSO_EXT
       cm->ccso_info.ccso_enable[2]) {
     const int blk_idc =
         aom_read_symbol(r, xd->tile_ctx->ccso_cdf[2], 2, ACCT_INFO("blk_idc"));
-#else
-      cm->ccso_info.ccso_enable[1]) {
-    const int blk_idc = aom_read_bit(r, ACCT_INFO("blk_idc"));
-#endif
     xd->ccso_blk_v = blk_idc;
     mi_params
         ->mi_grid_base[(mi_row & ~blk_size_y) * mi_params->mi_stride +
@@ -147,7 +134,6 @@
         ->ccso_blk_v = blk_idc;
   }
 }
-#endif
 
 static int read_delta_qindex(AV1_COMMON *cm, const MACROBLOCKD *xd,
                              aom_reader *r, MB_MODE_INFO *const mbmi) {
@@ -2018,16 +2004,8 @@
 
   if (xd->tree_type != CHROMA_PART) read_cdef(cm, r, xd);
 
-#if CONFIG_CCSO
-  if (cm->seq_params.enable_ccso
-#if CONFIG_CCSO_EXT
-      && xd->tree_type != CHROMA_PART
-#else
-      && xd->tree_type != LUMA_PART
-#endif
-  )
+  if (cm->seq_params.enable_ccso && xd->tree_type != CHROMA_PART)
     read_ccso(cm, r, xd);
-#endif
 
   read_delta_q_params(cm, xd, r);
 
@@ -4509,9 +4487,7 @@
 
   read_cdef(cm, r, xd);
 
-#if CONFIG_CCSO
   if (cm->seq_params.enable_ccso) read_ccso(cm, r, xd);
-#endif
 
   read_delta_q_params(cm, xd, r);
 
diff --git a/av1/encoder/bitstream.c b/av1/encoder/bitstream.c
index 2b30928..8fde4d8 100644
--- a/av1/encoder/bitstream.c
+++ b/av1/encoder/bitstream.c
@@ -34,9 +34,7 @@
 
 #include "av1/common/blockd.h"
 #include "av1/common/cdef.h"
-#if CONFIG_CCSO
 #include "av1/common/ccso.h"
-#endif
 #include "av1/common/cfl.h"
 #include "av1/common/entropy.h"
 #include "av1/common/entropymode.h"
@@ -1892,7 +1890,6 @@
   }
 }
 
-#if CONFIG_CCSO
 static AOM_INLINE void write_ccso(AV1_COMMON *cm, MACROBLOCKD *const xd,
                                   aom_writer *w) {
   if (cm->features.coded_lossless) return;
@@ -1908,40 +1905,27 @@
       mi_params->mi_grid_base[(mi_row & ~blk_size_y) * mi_params->mi_stride +
                               (mi_col & ~blk_size_x)];
 
-#if CONFIG_CCSO_EXT
   if (!(mi_row & blk_size_y) && !(mi_col & blk_size_x) &&
       cm->ccso_info.ccso_enable[0]) {
     aom_write_symbol(w, mbmi->ccso_blk_y == 0 ? 0 : 1,
                      xd->tile_ctx->ccso_cdf[0], 2);
     xd->ccso_blk_y = mbmi->ccso_blk_y;
   }
-#endif
 
   if (!(mi_row & blk_size_y) && !(mi_col & blk_size_x) &&
-#if CONFIG_CCSO_EXT
       cm->ccso_info.ccso_enable[1]) {
     aom_write_symbol(w, mbmi->ccso_blk_u == 0 ? 0 : 1,
                      xd->tile_ctx->ccso_cdf[1], 2);
-#else
-      cm->ccso_info.ccso_enable[0]) {
-    aom_write_bit(w, mbmi->ccso_blk_u == 0 ? 0 : 1);
-#endif
     xd->ccso_blk_u = mbmi->ccso_blk_u;
   }
 
   if (!(mi_row & blk_size_y) && !(mi_col & blk_size_x) &&
-#if CONFIG_CCSO_EXT
       cm->ccso_info.ccso_enable[2]) {
     aom_write_symbol(w, mbmi->ccso_blk_v == 0 ? 0 : 1,
                      xd->tile_ctx->ccso_cdf[2], 2);
-#else
-      cm->ccso_info.ccso_enable[1]) {
-    aom_write_bit(w, mbmi->ccso_blk_v == 0 ? 0 : 1);
-#endif
     xd->ccso_blk_v = mbmi->ccso_blk_v;
   }
 }
-#endif
 
 static AOM_INLINE void write_inter_segment_id(
     AV1_COMP *cpi, aom_writer *w, const struct segmentation *const seg,
@@ -2460,9 +2444,7 @@
 
   write_cdef(cm, xd, w, skip);
 
-#if CONFIG_CCSO
   if (cm->seq_params.enable_ccso) write_ccso(cm, xd, w);
-#endif
 
   write_delta_q_params(cpi, skip, w);
 
@@ -3153,16 +3135,8 @@
 
   if (xd->tree_type != CHROMA_PART) write_cdef(cm, xd, w, skip);
 
-#if CONFIG_CCSO
-  if (cm->seq_params.enable_ccso
-#if CONFIG_CCSO_EXT
-      && xd->tree_type != CHROMA_PART
-#else
-      && xd->tree_type != LUMA_PART
-#endif
-  )
+  if (cm->seq_params.enable_ccso && xd->tree_type != CHROMA_PART)
     write_ccso(cm, xd, w);
-#endif
 
   write_delta_q_params(cpi, skip, w);
   if (av1_allow_intrabc(cm, xd
@@ -4796,8 +4770,6 @@
   }
 }
 
-#if CONFIG_CCSO
-#if CONFIG_CCSO_EDGE_CLF
 // write CCSO offset idx using truncated unary coding
 static AOM_INLINE void write_ccso_offset_idx(struct aom_write_bit_buffer *wb,
                                              int offset_idx) {
@@ -4806,32 +4778,22 @@
     if (offset_idx == idx) break;
   }
 }
-#endif  // CONFIG_CCSO_EDGE_CLF
 static AOM_INLINE void encode_ccso(const AV1_COMMON *cm,
                                    struct aom_write_bit_buffer *wb) {
   if (is_global_intrabc_allowed(cm)) return;
-#if CONFIG_CCSO_EXT
   const int ccso_offset[8] = { 0, 1, -1, 3, -3, 7, -7, -10 };
 #if CONFIG_D143_CCSO_FM_FLAG
   aom_wb_write_literal(wb, cm->ccso_info.ccso_frame_flag, 1);
   if (cm->ccso_info.ccso_frame_flag) {
 #endif  // CONFIG_D143_CCSO_FM_FLAG
     for (int plane = 0; plane < av1_num_planes(cm); plane++) {
-#else
-  const int ccso_offset[8] = { 0, 1, -1, 3, -3, 5, -5, -7 };
-  for (int plane = 0; plane < 2; plane++) {
-#endif
       aom_wb_write_literal(wb, cm->ccso_info.ccso_enable[plane], 1);
       if (cm->ccso_info.ccso_enable[plane]) {
-#if CONFIG_CCSO_BO_ONLY_OPTION
         aom_wb_write_literal(wb, cm->ccso_info.ccso_bo_only[plane], 1);
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
 #if !CONFIG_CCSO_SIGFIX
         aom_wb_write_literal(wb, cm->ccso_info.quant_idx[plane], 2);
         aom_wb_write_literal(wb, cm->ccso_info.ext_filter_support[plane], 3);
 #endif  // !CONFIG_CCSO_SIGFIX
-#if CONFIG_CCSO_EXT
-#if CONFIG_CCSO_BO_ONLY_OPTION
         if (cm->ccso_info.ccso_bo_only[plane]) {
           aom_wb_write_literal(wb, cm->ccso_info.max_band_log2[plane], 3);
         } else {
@@ -4842,59 +4804,34 @@
 #endif  // CONFIG_CCSO_SIGFIX
           aom_wb_write_literal(wb, cm->ccso_info.max_band_log2[plane], 2);
         }
-#else
-      aom_wb_write_literal(wb, cm->ccso_info.max_band_log2[plane], 2);
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
         const int max_band = 1 << cm->ccso_info.max_band_log2[plane];
-#endif
-#if CONFIG_CCSO_EDGE_CLF
         const int edge_clf = cm->ccso_info.edge_clf[plane];
 #if !CONFIG_CCSO_SIGFIX
         aom_wb_write_bit(wb, edge_clf);
 #endif  // !CONFIG_CCSO_SIGFIX
         const int max_edge_interval = edge_clf_to_edge_interval[edge_clf];
-#if CONFIG_CCSO_BO_ONLY_OPTION
         const int num_edge_offset_intervals =
             cm->ccso_info.ccso_bo_only[plane] ? 1 : max_edge_interval;
         for (int d0 = 0; d0 < num_edge_offset_intervals; d0++) {
           for (int d1 = 0; d1 < num_edge_offset_intervals; d1++) {
-#else
-      for (int d0 = 0; d0 < max_edge_interval; d0++) {
-        for (int d1 = 0; d1 < max_edge_interval; d1++) {
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-#else
-      for (int d0 = 0; d0 < CCSO_INPUT_INTERVAL; d0++) {
-        for (int d1 = 0; d1 < CCSO_INPUT_INTERVAL; d1++) {
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if !CONFIG_CCSO_EXT
-            const int lut_idx_ext = (d0 << 2) + d1;
-#else
-          for (int band_num = 0; band_num < max_band; band_num++) {
-            const int lut_idx_ext = (band_num << 4) + (d0 << 2) + d1;
-#endif
-            for (int offset_idx = 0; offset_idx < 8; offset_idx++) {
-              if (cm->ccso_info.filter_offset[plane][lut_idx_ext] ==
-                  ccso_offset[offset_idx]) {
-#if CONFIG_CCSO_EDGE_CLF
-                write_ccso_offset_idx(wb, offset_idx);
-#else
-                aom_wb_write_literal(wb, offset_idx, 3);
-#endif  // CONFIG_CCSO_EDGE_CLF
-                break;
+            for (int band_num = 0; band_num < max_band; band_num++) {
+              const int lut_idx_ext = (band_num << 4) + (d0 << 2) + d1;
+              for (int offset_idx = 0; offset_idx < 8; offset_idx++) {
+                if (cm->ccso_info.filter_offset[plane][lut_idx_ext] ==
+                    ccso_offset[offset_idx]) {
+                  write_ccso_offset_idx(wb, offset_idx);
+                  break;
+                }
               }
             }
-#if CONFIG_CCSO_EXT
           }
-#endif
         }
       }
     }
-  }
 #if CONFIG_D143_CCSO_FM_FLAG
-}
+  }
 #endif  // CONFIG_D143_CCSO_FM_FLAG
 }
-#endif
 
 static AOM_INLINE void write_delta_q(struct aom_write_bit_buffer *wb,
                                      int delta_q) {
@@ -5609,9 +5546,7 @@
   aom_wb_write_bit(wb, seq_params->enable_imp_msk_bld);
 #endif  // CONFIG_D071_IMP_MSK_BLD
   aom_wb_write_bit(wb, seq_params->enable_fsc);
-#if CONFIG_CCSO
   aom_wb_write_bit(wb, seq_params->enable_ccso);
-#endif
   aom_wb_write_bit(wb, seq_params->enable_pef);
 #if CONFIG_LF_SUB_PU
   aom_wb_write_bit(wb, seq_params->enable_lf_sub_pu);
@@ -5621,7 +5556,7 @@
 #if CONFIG_LF_SUB_PU
       seq_params->enable_lf_sub_pu
 #else
-        seq_params->enable_pef
+      seq_params->enable_pef
 #endif  // CONFIG_LF_SUB_PU
   ) {
     aom_wb_write_bit(wb, seq_params->enable_tip_explicit_qp);
@@ -5801,8 +5736,8 @@
       const int ref_order_hint = ref_buf->display_order_hint;
       const int cur_order_hint = cm->cur_frame->display_order_hint;
 #else
-        const int ref_order_hint = ref_buf->order_hint;
-        const int cur_order_hint = cm->cur_frame->order_hint;
+      const int ref_order_hint = ref_buf->order_hint;
+      const int cur_order_hint = cm->cur_frame->order_hint;
 #endif  // CONFIG_EXPLICIT_TEMPORAL_DIST_CALC
       temporal_distance = get_relative_dist(&seq_params->order_hint_info,
                                             cur_order_hint, ref_order_hint);
@@ -6360,11 +6295,9 @@
       encode_cdef(cm, wb);
     }
     encode_restoration_mode(cm, wb);
-#if CONFIG_CCSO
     if (!features->coded_lossless && cm->seq_params.enable_ccso) {
       encode_ccso(cm, wb);
     }
-#endif
   }
 
   if (features->coded_lossless || !cm->seq_params.enable_parity_hiding) {
diff --git a/av1/encoder/encodeframe_utils.c b/av1/encoder/encodeframe_utils.c
index f2aaae0..6068c93 100644
--- a/av1/encoder/encodeframe_utils.c
+++ b/av1/encoder/encodeframe_utils.c
@@ -1643,11 +1643,9 @@
   AVERAGE_CDF(ctx_left->switchable_flex_restore_cdf,
               ctx_tr->switchable_flex_restore_cdf, 2);
   AVERAGE_CDF(ctx_left->wiener_restore_cdf, ctx_tr->wiener_restore_cdf, 2);
-#if CONFIG_CCSO_EXT
   for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
     AVERAGE_CDF(ctx_left->ccso_cdf[plane], ctx_tr->ccso_cdf[plane], 2);
   }
-#endif
   AVERAGE_CDF(ctx_left->sgrproj_restore_cdf, ctx_tr->sgrproj_restore_cdf, 2);
   AVERAGE_CDF(ctx_left->wienerns_restore_cdf, ctx_tr->wienerns_restore_cdf, 2);
   AVERAGE_CDF(ctx_left->wienerns_length_cdf, ctx_tr->wienerns_length_cdf, 2);
diff --git a/av1/encoder/encoder.c b/av1/encoder/encoder.c
index f18b681..39b6712 100644
--- a/av1/encoder/encoder.c
+++ b/av1/encoder/encoder.c
@@ -70,9 +70,7 @@
 #include "av1/encoder/mv_prec.h"
 #include "av1/encoder/pass2_strategy.h"
 #include "av1/encoder/pickcdef.h"
-#if CONFIG_CCSO
 #include "av1/encoder/pickccso.h"
-#endif
 #include "av1/encoder/picklpf.h"
 #include "av1/encoder/pickrst.h"
 #include "av1/encoder/random.h"
@@ -413,9 +411,7 @@
   seq->enable_superres = oxcf->superres_cfg.enable_superres;
   seq->enable_cdef = tool_cfg->enable_cdef;
   seq->enable_restoration = tool_cfg->enable_restoration;
-#if CONFIG_CCSO
   seq->enable_ccso = tool_cfg->enable_ccso;
-#endif
   seq->enable_pef = tool_cfg->enable_pef;
 #if CONFIG_LF_SUB_PU
   seq->enable_lf_sub_pu = tool_cfg->enable_lf_sub_pu;
@@ -2270,7 +2266,6 @@
 static void cdef_restoration_frame(AV1_COMP *cpi, AV1_COMMON *cm,
                                    MACROBLOCKD *xd, int use_restoration,
                                    int use_cdef) {
-#if CONFIG_CCSO
   uint16_t *rec_uv[CCSO_NUM_COMPONENTS];
   uint16_t *org_uv[CCSO_NUM_COMPONENTS];
   uint16_t *ext_rec_y = NULL;
@@ -2310,7 +2305,6 @@
     }
     extend_ccso_border(ext_rec_y, CCSO_PADDING_SIZE, xd);
   }
-#endif
 
   MultiThreadInfo *const mt_info = &cpi->mt_info;
   const int num_workers = mt_info->num_workers;
@@ -2345,16 +2339,11 @@
 #endif  // CONFIG_FIX_CDEF_SYNTAX
   }
 
-#if CONFIG_CCSO
   if (use_ccso) {
     av1_setup_dst_planes(xd->plane, &cm->cur_frame->buf, 0, 0, 0, num_planes,
                          NULL);
     // Reading original and reconstructed chroma samples as input
-#if CONFIG_CCSO_EXT
     for (int pli = 0; pli < num_planes; pli++) {
-#else
-    for (int pli = 1; pli < num_planes; pli++) {
-#endif
       const int pic_height = xd->plane[pli].dst.height;
       const int pic_width = xd->plane[pli].dst.width;
       const int dst_stride = xd->plane[pli].dst.stride;
@@ -2385,15 +2374,10 @@
     ccso_frame(&cm->cur_frame->buf, cm, xd, ext_rec_y);
     aom_free(ext_rec_y);
   }
-#if CONFIG_CCSO_EXT
   for (int pli = 0; pli < num_planes; pli++) {
-#else
-  for (int pli = 1; pli < num_planes; pli++) {
-#endif
     aom_free(rec_uv[pli]);
     aom_free(org_uv[pli]);
   }
-#endif
 
   av1_superres_post_encode(cpi);
 
diff --git a/av1/encoder/encoder.h b/av1/encoder/encoder.h
index bd6ce1c..b55468b 100644
--- a/av1/encoder/encoder.h
+++ b/av1/encoder/encoder.h
@@ -851,10 +851,8 @@
   bool enable_pc_wiener;
   // Indicates if nonsep wiener in loop restoration filter should be enabled.
   bool enable_wiener_nonsep;
-#if CONFIG_CCSO
   // Indicates if ccso should be enabled.
   bool enable_ccso;
-#endif
   // Indicates if prediction enhancement filter should be enabled.
   bool enable_pef;
 #if CONFIG_LF_SUB_PU
@@ -1662,9 +1660,7 @@
   unsigned int switchable_flex_restore_cnts[MAX_LR_FLEX_SWITCHABLE_BITS]
                                            [MAX_MB_PLANE][2];  // placeholder
 
-#if CONFIG_CCSO_EXT
   unsigned int default_ccso_cnts[3][2];
-#endif
 
   unsigned int inter_ext_tx[EXT_TX_SETS_INTER][EOB_TX_CTXS][EXT_TX_SIZES]
                            [TX_TYPES];
diff --git a/av1/encoder/pickccso.c b/av1/encoder/pickccso.c
index f4de50e..9a1d320 100644
--- a/av1/encoder/pickccso.c
+++ b/av1/encoder/pickccso.c
@@ -24,29 +24,21 @@
 #include "av1/encoder/encoder.h"
 #include "av1/encoder/pickccso.h"
 
-#if CONFIG_CCSO_EXT
 uint8_t final_band_log2;
-#endif
 int8_t best_filter_offset[CCSO_NUM_COMPONENTS][CCSO_BAND_NUM * 16] = { { 0 } };
 int8_t final_filter_offset[CCSO_NUM_COMPONENTS][CCSO_BAND_NUM * 16] = { { 0 } };
 bool best_filter_enabled[CCSO_NUM_COMPONENTS];
 bool final_filter_enabled[CCSO_NUM_COMPONENTS];
 uint8_t final_ext_filter_support[CCSO_NUM_COMPONENTS];
 uint8_t final_quant_idx[CCSO_NUM_COMPONENTS];
-#if CONFIG_CCSO_BO_ONLY_OPTION
 uint8_t final_ccso_bo_only[CCSO_NUM_COMPONENTS];
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
 
 int chroma_error[CCSO_BAND_NUM * 16] = { 0 };
 int chroma_count[CCSO_BAND_NUM * 16] = { 0 };
-#if CONFIG_CCSO_EXT
 int *total_class_err[CCSO_INPUT_INTERVAL][CCSO_INPUT_INTERVAL][CCSO_BAND_NUM];
 int *total_class_cnt[CCSO_INPUT_INTERVAL][CCSO_INPUT_INTERVAL][CCSO_BAND_NUM];
-#endif
-#if CONFIG_CCSO_BO_ONLY_OPTION
 int *total_class_err_bo[CCSO_BAND_NUM];
 int *total_class_cnt_bo[CCSO_BAND_NUM];
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
 int ccso_stride;
 int ccso_stride_ext;
 bool *filter_control;
@@ -57,27 +49,17 @@
 uint64_t *unfiltered_dist_block;
 uint64_t *training_dist_block;
 
-#if CONFIG_CCSO_EXT
 const int ccso_offset[8] = { -10, -7, -3, -1, 0, 1, 3, 7 };
-#else
-const int ccso_offset[8] = { -7, -5, -3, -1, 0, 1, 3, 5 };
-#endif  // CONFIG_CCSO_EXT
 const uint8_t quant_sz[4] = { 16, 8, 32, 64 };
 
-#if CONFIG_CCSO_EXT
-
 void ccso_derive_src_block_c(const uint16_t *src_y, uint8_t *const src_cls0,
                              uint8_t *const src_cls1, const int src_y_stride,
                              const int src_cls_stride, const int x, const int y,
                              const int pic_width, const int pic_height,
                              const int y_uv_hscale, const int y_uv_vscale,
                              const int qstep, const int neg_qstep,
-                             const int *src_loc, const int blk_size
-#if CONFIG_CCSO_EDGE_CLF
-                             ,
-                             const int edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-) {
+                             const int *src_loc, const int blk_size,
+                             const int edge_clf) {
   int src_cls[2];
   const int y_end = AOMMIN(pic_height - y, blk_size);
   const int x_end = AOMMIN(pic_width - x, blk_size);
@@ -88,12 +70,7 @@
       cal_filter_support(src_cls,
                          &src_y[(y_pos << y_uv_vscale) * src_y_stride +
                                 (x_pos << y_uv_hscale)],
-                         qstep, neg_qstep, src_loc
-#if CONFIG_CCSO_EDGE_CLF
-                         ,
-                         edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-      );
+                         qstep, neg_qstep, src_loc, edge_clf);
       src_cls0[(y_pos << y_uv_vscale) * src_cls_stride +
                (x_pos << y_uv_hscale)] = src_cls[0];
       src_cls1[(y_pos << y_uv_vscale) * src_cls_stride +
@@ -106,12 +83,7 @@
 void ccso_derive_src_info(MACROBLOCKD *xd, const int plane,
                           const uint16_t *src_y, const uint8_t qstep,
                           const uint8_t filter_sup, uint8_t *src_cls0,
-                          uint8_t *src_cls1
-#if CONFIG_CCSO_EDGE_CLF
-                          ,
-                          int edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-) {
+                          uint8_t *src_cls1, int edge_clf) {
   const int pic_height = xd->plane[plane].dst.height;
   const int pic_width = xd->plane[plane].dst.width;
   const int y_uv_hscale = xd->plane[plane].subsampling_x;
@@ -127,12 +99,7 @@
       ccso_derive_src_block(src_y, src_cls0, src_cls1, ccso_stride_ext,
                             ccso_stride, x, y, pic_width, pic_height,
                             y_uv_hscale, y_uv_vscale, qstep, neg_qstep, src_loc,
-                            blk_size
-#if CONFIG_CCSO_EDGE_CLF
-                            ,
-                            edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-      );
+                            blk_size, edge_clf);
     }
     src_y += (ccso_stride_ext << (blk_log2 + y_uv_vscale));
     src_cls0 += (ccso_stride << (blk_log2 + y_uv_vscale));
@@ -193,7 +160,6 @@
   }
 }
 
-#if CONFIG_CCSO_BO_ONLY_OPTION
 void ccso_pre_compute_class_err_bo(MACROBLOCKD *xd, const int plane,
                                    const uint16_t *src_y, const uint16_t *ref,
                                    const uint16_t *dst,
@@ -232,7 +198,6 @@
     src_y += (ccso_stride_ext << (blk_log2 + y_uv_vscale));
   }
 }
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
 
 void ccso_filter_block_hbd_with_buf_c(
     const uint16_t *src_y, uint16_t *dst_yuv, const uint8_t *src_cls0,
@@ -240,18 +205,11 @@
     const int src_cls_stride, const int x, const int y, const int pic_width,
     const int pic_height, const int8_t *filter_offset, const int blk_size,
     const int y_uv_hscale, const int y_uv_vscale, const int max_val,
-    const uint8_t shift_bits
-#if CONFIG_CCSO_BO_ONLY_OPTION
-    ,
-    const uint8_t ccso_bo_only
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-) {
-#if CONFIG_CCSO_BO_ONLY_OPTION
+    const uint8_t shift_bits, const uint8_t ccso_bo_only) {
   if (ccso_bo_only) {
     (void)src_cls0;
     (void)src_cls1;
   }
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
   int cur_src_cls0;
   int cur_src_cls1;
   const int y_end = AOMMIN(pic_height - y, blk_size);
@@ -260,19 +218,15 @@
     const int y_pos = y_start;
     for (int x_start = 0; x_start < x_end; x_start++) {
       const int x_pos = x + x_start;
-#if CONFIG_CCSO_BO_ONLY_OPTION
       if (!ccso_bo_only) {
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
         cur_src_cls0 = src_cls0[(y_pos << y_uv_vscale) * src_cls_stride +
                                 (x_pos << y_uv_hscale)];
         cur_src_cls1 = src_cls1[(y_pos << y_uv_vscale) * src_cls_stride +
                                 (x_pos << y_uv_hscale)];
-#if CONFIG_CCSO_BO_ONLY_OPTION
       } else {
         cur_src_cls0 = 0;
         cur_src_cls1 = 0;
       }
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
       const int band_num = src_y[(y_pos << y_uv_vscale) * src_y_stride +
                                  (x_pos << y_uv_hscale)] >>
                            shift_bits;
@@ -289,12 +243,8 @@
                           const uint16_t *src_y, uint16_t *dst_yuv,
                           const int dst_stride, const int8_t *filter_offset,
                           uint8_t *src_cls0, uint8_t *src_cls1,
-                          const uint8_t shift_bits
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                          ,
-                          const uint8_t ccso_bo_only
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-) {
+                          const uint8_t shift_bits,
+                          const uint8_t ccso_bo_only) {
   const int pic_height = xd->plane[plane].dst.height;
   const int pic_width = xd->plane[plane].dst.width;
   const int max_val = (1 << cm->seq_params.bit_depth) - 1;
@@ -303,7 +253,6 @@
   src_y += CCSO_PADDING_SIZE * ccso_stride_ext + CCSO_PADDING_SIZE;
   for (int y = 0; y < pic_height; y += blk_size) {
     for (int x = 0; x < pic_width; x += blk_size) {
-#if CONFIG_CCSO_BO_ONLY_OPTION
       if (ccso_bo_only) {
         ccso_filter_block_hbd_with_buf_c(
             src_y, dst_yuv, src_cls0, src_cls1, ccso_stride_ext, dst_stride,
@@ -311,20 +260,12 @@
             // y_uv_scale in h and v shall be zero
             0, 0, max_val, shift_bits, ccso_bo_only);
       } else {
-#endif
         ccso_filter_block_hbd_with_buf(
             src_y, dst_yuv, src_cls0, src_cls1, ccso_stride_ext, dst_stride,
             ccso_stride, x, y, pic_width, pic_height, filter_offset, blk_size,
             // y_uv_scale in h and v shall be zero
-            0, 0, max_val, shift_bits
-#if CONFIG_CCSO_BO_ONLY_OPTION
-            ,
-            0
-#endif
-        );
-#if CONFIG_CCSO_BO_ONLY_OPTION
+            0, 0, max_val, shift_bits, 0);
       }
-#endif
     }
     dst_yuv += (dst_stride << blk_log2);
     src_y += (ccso_stride_ext << blk_log2);
@@ -338,12 +279,8 @@
                             const uint16_t *src_y, uint16_t *dst_yuv,
                             const int dst_stride, const int8_t *filter_offset,
                             uint8_t *src_cls0, uint8_t *src_cls1,
-                            const uint8_t shift_bits
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                            ,
-                            const uint8_t ccso_bo_only
-#endif
-) {
+                            const uint8_t shift_bits,
+                            const uint8_t ccso_bo_only) {
   const int pic_height = xd->plane[plane].dst.height;
   const int pic_width = xd->plane[plane].dst.width;
   const int y_uv_hscale = xd->plane[plane].subsampling_x;
@@ -354,26 +291,17 @@
   src_y += CCSO_PADDING_SIZE * ccso_stride_ext + CCSO_PADDING_SIZE;
   for (int y = 0; y < pic_height; y += blk_size) {
     for (int x = 0; x < pic_width; x += blk_size) {
-#if CONFIG_CCSO_BO_ONLY_OPTION
       if (ccso_bo_only) {
         ccso_filter_block_hbd_with_buf_c(
             src_y, dst_yuv, src_cls0, src_cls1, ccso_stride_ext, dst_stride,
             ccso_stride, x, y, pic_width, pic_height, filter_offset, blk_size,
             y_uv_hscale, y_uv_vscale, max_val, shift_bits, ccso_bo_only);
       } else {
-#endif
         ccso_filter_block_hbd_with_buf(
             src_y, dst_yuv, src_cls0, src_cls1, ccso_stride_ext, dst_stride,
             ccso_stride, x, y, pic_width, pic_height, filter_offset, blk_size,
-            y_uv_hscale, y_uv_vscale, max_val, shift_bits
-#if CONFIG_CCSO_BO_ONLY_OPTION
-            ,
-            0
-#endif
-        );
-#if CONFIG_CCSO_BO_ONLY_OPTION
+            y_uv_hscale, y_uv_vscale, max_val, shift_bits, 0);
       }
-#endif
     }
     dst_yuv += (dst_stride << blk_log2);
     src_y += (ccso_stride_ext << (blk_log2 + y_uv_vscale));
@@ -381,7 +309,6 @@
     src_cls1 += (ccso_stride << (blk_log2 + y_uv_vscale));
   }
 }
-#endif  // CONFIG_CCSO_EXT
 
 uint64_t compute_distortion_block_c(const uint16_t *org, const int org_stride,
                                     const uint16_t *rec16, const int rec_stride,
@@ -438,17 +365,10 @@
                    const uint64_t *unfiltered_dist,
                    const uint64_t *training_dist, bool *m_filter_control,
                    uint64_t *cur_total_dist, int *cur_total_rate,
-                   bool *filter_enable
-#if !CONFIG_CCSO_EDGE_CLF
-                   ,
-                   const int rdmult
-#endif  // !CONFIG_CCSO_EDGE_CLF
-) {
-#if CONFIG_CCSO_EXT
+                   bool *filter_enable) {
   aom_cdf_prob ccso_cdf[CDF_SIZE(2)];
   static const aom_cdf_prob default_ccso_cdf[CDF_SIZE(2)] = { AOM_CDF2(11570) };
   av1_copy(ccso_cdf, default_ccso_cdf);
-#endif
   const int log2_filter_unit_size =
       plane > 0 ? CCSO_BLK_SIZE : CCSO_BLK_SIZE + 1;
   const CommonModeInfoParams *const mi_params = &cm->mi_params;
@@ -462,22 +382,14 @@
       (1 << log2_filter_unit_size >> 2);
   bool cur_filter_enabled = false;
   int sb_idx = 0;
-#if !CONFIG_CCSO_EXT
-  const int rate = av1_cost_literal(1);
-#endif
   for (int y_sb = 0; y_sb < ccso_nvfb; y_sb++) {
     for (int x_sb = 0; x_sb < ccso_nhfb; x_sb++) {
       uint64_t ssd;
       uint64_t best_ssd = UINT64_MAX;
       int best_rate = INT_MAX;
-#if !CONFIG_CCSO_EDGE_CLF
-      uint64_t best_cost = UINT64_MAX;
-#endif  // !CONFIG_CCSO_EDGE_CLF
       uint8_t cur_best_filter_control = 0;
-#if CONFIG_CCSO_EXT
       int cost_from_cdf[2];
       av1_cost_tokens_from_cdf(cost_from_cdf, ccso_cdf, NULL);
-#endif
       for (int cur_filter_control = 0; cur_filter_control < 2;
            cur_filter_control++) {
         if (!(*filter_enable)) {
@@ -488,31 +400,14 @@
         } else {
           ssd = training_dist[sb_idx];
         }
-#if !CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_EXT
-        const uint64_t rd_cost =
-            RDCOST(rdmult, cost_from_cdf[cur_filter_control], ssd * 16);
-#else
-        const uint64_t rd_cost = RDCOST(rdmult, rate, ssd * 16);
-#endif
-        if (rd_cost < best_cost) {
-          best_cost = rd_cost;
-#else
         if (ssd < best_ssd) {
-#endif  // !CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_EXT
           best_rate = cost_from_cdf[cur_filter_control];
-#else
-          best_rate = rate;
-#endif
           best_ssd = ssd;
           cur_best_filter_control = cur_filter_control;
           m_filter_control[sb_idx] = cur_filter_control;
         }
       }
-#if CONFIG_CCSO_EXT
       update_cdf(ccso_cdf, cur_best_filter_control, 2);
-#endif
       if (cur_best_filter_control != 0) {
         cur_filter_enabled = true;
       }
@@ -530,16 +425,8 @@
                          const int plane, const uint16_t *org_chroma,
                          const uint16_t *rec_uv_16,
                          const uint8_t quant_step_size,
-                         const uint8_t ext_filter_support
-#if CONFIG_CCSO_EXT
-                         ,
-                         const int shift_bits
-#endif
-#if CONFIG_CCSO_EDGE_CLF
-                         ,
-                         int edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-) {
+                         const uint8_t ext_filter_support, const int shift_bits,
+                         int edge_clf) {
   const int log2_filter_unit_size =
       plane > 0 ? CCSO_BLK_SIZE : CCSO_BLK_SIZE + 1;
   const int pic_height_c = xd->plane[plane].dst.height;
@@ -596,36 +483,23 @@
 
       for (int y_off = 0; y_off < y_offset; y_off++) {
         for (int x_off = 0; x_off < x_offset; x_off++) {
-#if CONFIG_CCSO_EXT
           const int band_num =
               ext_rec_luma[((ccso_stride_ext_idx[y_off] << y_uv_vert_scale) +
                             ((x + x_off) << y_uv_hori_scale)) +
                            pad_stride] >>
               shift_bits;
-#endif
           cal_filter_support(
               rec_luma_idx,
               &ext_rec_luma[((ccso_stride_ext_idx[y_off] << y_uv_vert_scale) +
                              ((x + x_off) << y_uv_hori_scale)) +
                             pad_stride],
-              quant_step_size, inv_quant_step, rec_idx
-#if CONFIG_CCSO_EDGE_CLF
-              ,
-              edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-          );
-          chroma_error[
-#if CONFIG_CCSO_EXT
-              (band_num << 4) +
-#endif
-              (rec_luma_idx[0] << 2) + rec_luma_idx[1]] +=
+              quant_step_size, inv_quant_step, rec_idx, edge_clf);
+          chroma_error[(band_num << 4) + (rec_luma_idx[0] << 2) +
+                       rec_luma_idx[1]] +=
               org_chroma[ccso_stride_idx[y_off] + x + x_off] -
               rec_uv_16[ccso_stride_idx[y_off] + x + x_off];
-          chroma_count[
-#if CONFIG_CCSO_EXT
-              (band_num << 4) +
-#endif
-              (rec_luma_idx[0] << 2) + rec_luma_idx[1]]++;
+          chroma_count[(band_num << 4) + (rec_luma_idx[0] << 2) +
+                       rec_luma_idx[1]]++;
         }
       }
     }
@@ -636,21 +510,13 @@
   }
 }
 
-#if CONFIG_CCSO_EXT
 /* Compute the residual for each entry of the LUT using CCSO enabled filter
  * blocks
  */
 void ccso_compute_class_err(AV1_COMMON *cm, const int plane, MACROBLOCKD *xd,
-                            const int max_band_log2
-#if CONFIG_CCSO_EDGE_CLF
-                            ,
-                            const int max_edge_interval
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                            ,
-                            const uint8_t ccso_bo_only
-#endif
-) {
+                            const int max_band_log2,
+                            const int max_edge_interval,
+                            const uint8_t ccso_bo_only) {
   const CommonModeInfoParams *const mi_params = &cm->mi_params;
   const int blk_log2 = plane > 0 ? CCSO_BLK_SIZE : CCSO_BLK_SIZE + 1;
   const int nvfb = ((mi_params->mi_rows >> xd->plane[plane].subsampling_y) +
@@ -662,7 +528,6 @@
   const int fb_count = nvfb * nhfb;
   for (int fb_idx = 0; fb_idx < fb_count; fb_idx++) {
     if (!filter_control[fb_idx]) continue;
-#if CONFIG_CCSO_BO_ONLY_OPTION
     if (ccso_bo_only) {
       int d0 = 0;
       int d1 = 0;
@@ -672,14 +537,8 @@
         chroma_count[lut_idx_ext] += total_class_cnt_bo[band_num][fb_idx];
       }
     } else {
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-#if CONFIG_CCSO_EDGE_CLF
       for (int d0 = 0; d0 < max_edge_interval; d0++) {
         for (int d1 = 0; d1 < max_edge_interval; d1++) {
-#else
-    for (int d0 = 0; d0 < CCSO_INPUT_INTERVAL; d0++) {
-      for (int d1 = 0; d1 < CCSO_INPUT_INTERVAL; d1++) {
-#endif  // CONFIG_CCSO_EDGE_CLF
           for (int band_num = 0; band_num < (1 << max_band_log2); band_num++) {
             const int lut_idx_ext = (band_num << 4) + (d0 << 2) + d1;
             chroma_error[lut_idx_ext] +=
@@ -689,108 +548,50 @@
           }
         }
       }
-#if CONFIG_CCSO_BO_ONLY_OPTION
     }
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
   }
 }
-#endif
 
-#if CONFIG_CCSO_EDGE_CLF
 /* Count the bits for signaling the offset index */
-static INLINE int count_lut_bits(int8_t *temp_filter_offset
-#if CONFIG_CCSO_EXT
-                                 ,
-                                 const int max_band_log2
-#endif
-                                 ,
-                                 const int max_edge_interval
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                                 ,
-                                 const uint8_t ccso_bo_only
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-) {
-#if CONFIG_CCSO_EXT
+static INLINE int count_lut_bits(int8_t *temp_filter_offset,
+                                 const int max_band_log2,
+                                 const int max_edge_interval,
+                                 const uint8_t ccso_bo_only) {
   const int ccso_offset_reordered[8] = { 0, 1, -1, 3, -3, 7, -7, -10 };
-#else
-  const int ccso_offset_reordered[8] = { 0, 1, -1, 3, -3, 5, -5, -7 };
-#endif  // CONFIG_CCSO_EXT
   int temp_bits = 0;
-#if CONFIG_CCSO_BO_ONLY_OPTION
   int num_edge_offset_intervals = ccso_bo_only ? 1 : max_edge_interval;
   for (int d0 = 0; d0 < num_edge_offset_intervals; d0++) {
     for (int d1 = 0; d1 < num_edge_offset_intervals; d1++) {
-#else
-  for (int d0 = 0; d0 < max_edge_interval; d0++) {
-    for (int d1 = 0; d1 < max_edge_interval; d1++) {
-#endif
-#if CONFIG_CCSO_EXT
       for (int band_num = 0; band_num < (1 << max_band_log2); band_num++) {
         const int lut_idx_ext = (band_num << 4) + (d0 << 2) + d1;
-#else
-      const int lut_idx_ext = (d0 << 2) + d1;
-#endif
         for (int idx = 0; idx < 7; ++idx) {
           temp_bits++;
           if (ccso_offset_reordered[idx] == temp_filter_offset[lut_idx_ext])
             break;
         }
-#if CONFIG_CCSO_EXT
       }
-#endif
     }
   }
   return temp_bits;
 }
-#endif  // CONFIG_CCSO_EDGE_CLF
 
 /* Derive the offset value in the look-up table */
-void derive_lut_offset(int8_t *temp_filter_offset
-#if CONFIG_CCSO_EXT
-                       ,
-                       const int max_band_log2
-#endif
-#if CONFIG_CCSO_EDGE_CLF
-                       ,
-                       const int max_edge_interval
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                       ,
-                       const uint8_t ccso_bo_only
-#endif
-) {
+void derive_lut_offset(int8_t *temp_filter_offset, const int max_band_log2,
+                       const int max_edge_interval,
+                       const uint8_t ccso_bo_only) {
   float temp_offset = 0;
-#if CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_BO_ONLY_OPTION
   int num_edge_offset_intervals = ccso_bo_only ? 1 : max_edge_interval;
   for (int d0 = 0; d0 < num_edge_offset_intervals; d0++) {
     for (int d1 = 0; d1 < num_edge_offset_intervals; d1++) {
-#else
-  for (int d0 = 0; d0 < max_edge_interval; d0++) {
-    for (int d1 = 0; d1 < max_edge_interval; d1++) {
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-#else
-  for (int d0 = 0; d0 < CCSO_INPUT_INTERVAL; d0++) {
-    for (int d1 = 0; d1 < CCSO_INPUT_INTERVAL; d1++) {
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_EXT
       for (int band_num = 0; band_num < (1 << max_band_log2); band_num++) {
         const int lut_idx_ext = (band_num << 4) + (d0 << 2) + d1;
-#else
-      const int lut_idx_ext = (d0 << 2) + d1;
-#endif
         if (chroma_count[lut_idx_ext]) {
           temp_offset =
               (float)chroma_error[lut_idx_ext] / chroma_count[lut_idx_ext];
-#if CONFIG_CCSO_EXT
           if ((temp_offset < ccso_offset[0]) ||
               (temp_offset >= ccso_offset[7])) {
             temp_filter_offset[lut_idx_ext] =
                 clamp((int)temp_offset, ccso_offset[0], ccso_offset[7]);
-#else
-        if ((temp_offset < -7) || (temp_offset >= 5)) {
-          temp_filter_offset[lut_idx_ext] = clamp((int)temp_offset, -7, 5);
-#endif
           } else {
             for (int offset_idx = 0; offset_idx < 7; offset_idx++) {
               if ((temp_offset >= ccso_offset[offset_idx]) &&
@@ -806,9 +607,7 @@
             }
           }
         }
-#if CONFIG_CCSO_EXT
       }
-#endif
     }
   }
 }
@@ -846,7 +645,6 @@
   memset(final_filter_control, 0, sizeof(*final_filter_control) * sb_count);
   temp_rec_uv_buf = aom_malloc(sizeof(*temp_rec_uv_buf) *
                                xd->plane[0].dst.height * ccso_stride);
-#if CONFIG_CCSO_EXT
   for (int d0 = 0; d0 < CCSO_INPUT_INTERVAL; d0++) {
     for (int d1 = 0; d1 < CCSO_INPUT_INTERVAL; d1++) {
       for (int band_num = 0; band_num < CCSO_BAND_NUM; band_num++) {
@@ -857,19 +655,15 @@
       }
     }
   }
-#endif
-#if CONFIG_CCSO_BO_ONLY_OPTION
   for (int band_num = 0; band_num < CCSO_BAND_NUM; band_num++) {
     total_class_err_bo[band_num] =
         aom_malloc(sizeof(*total_class_err_bo[band_num]) * sb_count);
     total_class_cnt_bo[band_num] =
         aom_malloc(sizeof(*total_class_cnt_bo[band_num]) * sb_count);
   }
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
   compute_distortion(org_uv, ccso_stride, rec_uv, ccso_stride,
                      log2_filter_unit_size, pic_height_c, pic_width_c,
                      unfiltered_dist_block, ccso_nhfb, &unfiltered_dist_frame);
-#if CONFIG_CCSO_EDGE_CLF
   const double best_unfiltered_cost = RDCOST_DBL_WITH_NATIVE_BD_DIST(
       rdmult, 1, unfiltered_dist_frame, cm->seq_params.bit_depth);
   double best_filtered_cost;
@@ -877,26 +671,10 @@
   uint8_t best_edge_classifier = 0;
   uint8_t final_edge_classifier = 0;
   const int total_edge_classifier = 2;
-#else
-  const uint64_t best_unfiltered_cost =
-      RDCOST(rdmult, av1_cost_literal(1), unfiltered_dist_frame * 16);
-  uint64_t best_filtered_cost;
-  uint64_t final_filtered_cost = UINT64_MAX;
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_EXT
-#if CONFIG_CCSO_BO_ONLY_OPTION
   int8_t filter_offset[CCSO_BAND_NUM * 16];
-#else
-  int8_t filter_offset[8 * 16];
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-#else
-  int8_t filter_offset[16];
-#endif
   const int total_filter_support = 6;
   const int total_quant_idx = 4;
-#if CONFIG_CCSO_EXT
   const int total_band_log2_plus1 = 4;
-#endif
   uint8_t frame_bits = 1;
 #if CONFIG_CCSO_SIGFIX
   uint8_t frame_bits_bo_only = 1;  // enabling flag
@@ -905,11 +683,8 @@
 #endif                             // CONFIG_CCSO_SIGFIX
   frame_bits += 2;                 // quant step size
   frame_bits += 3;                 // filter support index
-#if CONFIG_CCSO_EDGE_CLF
-  frame_bits += 1;  // edge_clf
-#endif              // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_EXT
-  frame_bits += 2;  // band number log2
+  frame_bits += 1;                 // edge_clf
+  frame_bits += 2;                 // band number log2
 #if CONFIG_CCSO_SIGFIX
   frame_bits_bo_only += 3;  // band number log2
 #endif                      // CONFIG_CCSO_SIGFIX
@@ -923,69 +698,39 @@
          sizeof(*src_cls0) * xd->plane[0].dst.height * xd->plane[0].dst.width);
   memset(src_cls1, 0,
          sizeof(*src_cls1) * xd->plane[0].dst.height * xd->plane[0].dst.width);
-#endif
-#if CONFIG_CCSO_BO_ONLY_OPTION
   for (uint8_t ccso_bo_only = 0; ccso_bo_only < 2; ccso_bo_only++) {
-#endif
 #if CONFIG_CCSO_SIGFIX
     int num_filter_iter = ccso_bo_only ? 1 : total_filter_support;
     int num_quant_iter = ccso_bo_only ? 1 : total_quant_idx;
     int num_edge_clf_iter = ccso_bo_only ? 1 : total_edge_classifier;
 #else
-  int num_filter_iter = total_filter_support;
-  int num_quant_iter = total_quant_idx;
-  int num_edge_clf_iter = total_edge_classifier;
+    int num_filter_iter = total_filter_support;
+    int num_quant_iter = total_quant_idx;
+    int num_edge_clf_iter = total_edge_classifier;
 #endif  // CONFIG_CCSO_SIGFIX
     for (int ext_filter_support = 0; ext_filter_support < num_filter_iter;
          ext_filter_support++) {
       for (int quant_idx = 0; quant_idx < num_quant_iter; quant_idx++) {
-#if CONFIG_CCSO_EDGE_CLF
         for (int edge_clf = 0; edge_clf < num_edge_clf_iter; edge_clf++) {
           const int max_edge_interval = edge_clf_to_edge_interval[edge_clf];
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_EXT
-#if CONFIG_CCSO_BO_ONLY_OPTION
           if (!ccso_bo_only) {
-#endif
             ccso_derive_src_info(xd, plane, ext_rec_y, quant_sz[quant_idx],
-                                 ext_filter_support, src_cls0, src_cls1
-#if CONFIG_CCSO_EDGE_CLF
-                                 ,
-                                 edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-            );
-#if CONFIG_CCSO_BO_ONLY_OPTION
+                                 ext_filter_support, src_cls0, src_cls1,
+                                 edge_clf);
           }
-#endif
-#if CONFIG_CCSO_BO_ONLY_OPTION
           int num_band_iter = total_band_log2_plus1;
           if (ccso_bo_only) {
             num_band_iter = total_band_log2_plus1 + 4;
           }
           for (int max_band_log2 = 0; max_band_log2 < num_band_iter;
                max_band_log2++) {
-#else
-          for (int max_band_log2 = 0; max_band_log2 < total_band_log2_plus1;
-               max_band_log2++) {
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
             const int shift_bits = cm->seq_params.bit_depth - max_band_log2;
-#if CONFIG_CCSO_EDGE_CLF
             const int max_band = 1 << max_band_log2;
-#endif  // CONFIG_CCSO_EDGE_CLF
-#endif
-#if CONFIG_CCSO_EDGE_CLF
             best_filtered_cost = DBL_MAX;
-#else
-      best_filtered_cost = UINT64_MAX;
-#endif  // CONFIG_CCSO_EDGE_CLF
             bool ccso_enable = true;
             bool keep_training = true;
             bool improvement = false;
-#if CONFIG_CCSO_EDGE_CLF
             double prev_total_cost = DBL_MAX;
-#else
-      uint64_t prev_total_cost = UINT64_MAX;
-#endif  // CONFIG_CCSO_EDGE_CLF
             int control_idx = 0;
             for (int y = 0; y < ccso_nvfb; y++) {
               for (int x = 0; x < ccso_nhfb; x++) {
@@ -993,8 +738,6 @@
                 control_idx++;
               }
             }
-#if CONFIG_CCSO_EXT
-#if CONFIG_CCSO_BO_ONLY_OPTION
             if (ccso_bo_only) {
               for (int band_num = 0; band_num < CCSO_BAND_NUM; band_num++) {
                 memset(total_class_err_bo[band_num], 0,
@@ -1005,16 +748,9 @@
               ccso_pre_compute_class_err_bo(xd, plane, ext_rec_y, org_uv,
                                             rec_uv, shift_bits);
             } else {
-#endif
-#if CONFIG_CCSO_EDGE_CLF
               for (int d0 = 0; d0 < max_edge_interval; d0++) {
                 for (int d1 = 0; d1 < max_edge_interval; d1++) {
                   for (int band_num = 0; band_num < max_band; band_num++) {
-#else
-            for (int d0 = 0; d0 < CCSO_INPUT_INTERVAL; d0++) {
-              for (int d1 = 0; d1 < CCSO_INPUT_INTERVAL; d1++) {
-                for (int band_num = 0; band_num < CCSO_BAND_NUM; band_num++) {
-#endif  // CONFIG_CCSO_EDGE_CLF
                     memset(
                         total_class_err[d0][d1][band_num], 0,
                         sizeof(*total_class_err[d0][d1][band_num]) * sb_count);
@@ -1026,10 +762,7 @@
               }
               ccso_pre_compute_class_err(xd, plane, ext_rec_y, org_uv, rec_uv,
                                          src_cls0, src_cls1, shift_bits);
-#if CONFIG_CCSO_BO_ONLY_OPTION
             }
-#endif
-#endif
             int training_iter_count = 0;
             while (keep_training) {
               improvement = false;
@@ -1040,72 +773,23 @@
                 memcpy(temp_rec_uv_buf, rec_uv,
                        sizeof(*temp_rec_uv_buf) * xd->plane[0].dst.height *
                            ccso_stride);
-#if CONFIG_CCSO_EXT
-                ccso_compute_class_err(cm, plane, xd, max_band_log2
-#if CONFIG_CCSO_EDGE_CLF
-                                       ,
-                                       max_edge_interval
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                                       ,
-                                       ccso_bo_only
-#endif
-                );
-#else
-          compute_total_error(xd, ext_rec_y, plane, org_uv, temp_rec_uv_buf,
-                              quant_sz[quant_idx], ext_filter_support
-#if CONFIG_CCSO_EXT
-                              ,
-                              shift_bits
-#endif
-#if CONFIG_CCSO_EDGE_CLF
-                              ,
-                              edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-          );
-#endif
-                derive_lut_offset(filter_offset
-#if CONFIG_CCSO_EXT
-                                  ,
-                                  max_band_log2
-#endif
-#if CONFIG_CCSO_EDGE_CLF
-                                  ,
-                                  max_edge_interval
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                                  ,
-                                  ccso_bo_only
-#endif
-                );
+                ccso_compute_class_err(cm, plane, xd, max_band_log2,
+                                       max_edge_interval, ccso_bo_only);
+                derive_lut_offset(filter_offset, max_band_log2,
+                                  max_edge_interval, ccso_bo_only);
               }
               memcpy(temp_rec_uv_buf, rec_uv,
                      sizeof(*temp_rec_uv_buf) * xd->plane[0].dst.height *
                          ccso_stride);
-#if CONFIG_CCSO_EXT
               if (plane > 0)
-                ccso_try_chroma_filter(
-                    cm, xd, plane, ext_rec_y, temp_rec_uv_buf, ccso_stride,
-                    filter_offset, src_cls0, src_cls1, shift_bits
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                    ,
-                    ccso_bo_only
-#endif
-                );
+                ccso_try_chroma_filter(cm, xd, plane, ext_rec_y,
+                                       temp_rec_uv_buf, ccso_stride,
+                                       filter_offset, src_cls0, src_cls1,
+                                       shift_bits, ccso_bo_only);
               else
                 ccso_try_luma_filter(cm, xd, plane, ext_rec_y, temp_rec_uv_buf,
                                      ccso_stride, filter_offset, src_cls0,
-                                     src_cls1, shift_bits
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                                     ,
-                                     ccso_bo_only
-#endif
-                );
-#else
-        apply_ccso_filter_hbd(cm, xd, plane, ext_rec_y, temp_rec_uv_buf,
-                              ccso_stride, filter_offset, quant_sz[quant_idx],
-                              ext_filter_support);
-#endif
+                                     src_cls1, shift_bits, ccso_bo_only);
               filtered_dist_frame = 0;
               compute_distortion(org_uv, ccso_stride, temp_rec_uv_buf,
                                  ccso_stride, log2_filter_unit_size,
@@ -1115,21 +799,11 @@
               int cur_total_rate = 0;
               derive_blk_md(cm, xd, plane, unfiltered_dist_block,
                             training_dist_block, filter_control,
-                            &cur_total_dist, &cur_total_rate, &ccso_enable
-#if !CONFIG_CCSO_EDGE_CLF
-                            ,
-                            rdmult
-#endif  // !CONFIG_CCSO_EDGE_CLF
-              );
+                            &cur_total_dist, &cur_total_rate, &ccso_enable);
               if (ccso_enable) {
-#if CONFIG_CCSO_EDGE_CLF
-                const int lut_bits = count_lut_bits(
-                    filter_offset, max_band_log2, max_edge_interval
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                    ,
-                    ccso_bo_only
-#endif  // CONFIG_CCSO_BO_ONLY_OPTION
-                );
+                const int lut_bits =
+                    count_lut_bits(filter_offset, max_band_log2,
+                                   max_edge_interval, ccso_bo_only);
                 const int cur_total_bits =
                     lut_bits +
                     (
@@ -1141,39 +815,16 @@
                 const double cur_total_cost = RDCOST_DBL_WITH_NATIVE_BD_DIST(
                     rdmult, cur_total_bits, cur_total_dist,
                     cm->seq_params.bit_depth);
-#else
-#if CONFIG_CCSO_EXT
-          const int lut_bits = (1 << max_band_log2) * 9;
-#else
-          const int lut_bits = 9;
-#endif
-          cur_total_rate += av1_cost_literal(lut_bits * 3) +
-                            av1_cost_literal(
-#if CONFIG_CCSO_SIGFIX
-                                ccso_bo_only ? frame_bits_bo_only :
-#endif  // CONFIG_CCSO_SIGFIX
-                                             frame_bits);
-          const uint64_t cur_total_cost =
-              RDCOST(rdmult, cur_total_rate, cur_total_dist * 16);
-#endif  // CONFIG_CCSO_EDGE_CLF
                 if (cur_total_cost < prev_total_cost) {
                   prev_total_cost = cur_total_cost;
                   improvement = true;
                 }
                 if (cur_total_cost < best_filtered_cost) {
                   best_filtered_cost = cur_total_cost;
-#if CONFIG_CCSO_EXT
                   best_filter_enabled[plane] = ccso_enable;
                   memcpy(best_filter_offset[plane], filter_offset,
                          sizeof(filter_offset));
-#else
-            best_filter_enabled[plane - 1] = ccso_enable;
-            memcpy(best_filter_offset[plane - 1], filter_offset,
-                   sizeof(filter_offset));
-#endif
-#if CONFIG_CCSO_EDGE_CLF
                   best_edge_classifier = edge_clf;
-#endif  // CONFIG_CCSO_EDGE_CLF
                   memcpy(best_filter_control, filter_control,
                          sizeof(*filter_control) * sb_count);
                 }
@@ -1186,67 +837,32 @@
 
             if (best_filtered_cost < final_filtered_cost) {
               final_filtered_cost = best_filtered_cost;
-#if CONFIG_CCSO_EXT
               final_filter_enabled[plane] = best_filter_enabled[plane];
               final_quant_idx[plane] = quant_idx;
               final_ext_filter_support[plane] = ext_filter_support;
-#if CONFIG_CCSO_BO_ONLY_OPTION
               final_ccso_bo_only[plane] = ccso_bo_only;
-#endif
               memcpy(final_filter_offset[plane], best_filter_offset[plane],
                      sizeof(best_filter_offset[plane]));
               final_band_log2 = max_band_log2;
-#else
-        final_filter_enabled[plane - 1] = best_filter_enabled[plane - 1];
-        final_quant_idx[plane - 1] = quant_idx;
-        final_ext_filter_support[plane - 1] = ext_filter_support;
-        memcpy(final_filter_offset[plane - 1], best_filter_offset[plane - 1],
-               sizeof(best_filter_offset[plane - 1]));
-#endif
-#if CONFIG_CCSO_EDGE_CLF
               final_edge_classifier = best_edge_classifier;
-#endif  // CONFIG_CCSO_EDGE_CLF
               memcpy(final_filter_control, best_filter_control,
                      sizeof(*best_filter_control) * sb_count);
             }
-#if CONFIG_CCSO_EXT
           }
-#endif
-#if CONFIG_CCSO_EDGE_CLF
         }
-#endif  // CONFIG_CCSO_EDGE_CLF
       }
     }
-#if CONFIG_CCSO_BO_ONLY_OPTION
-  }  // end bo only
-#endif
+  }
 
   if (best_unfiltered_cost < final_filtered_cost) {
     memset(final_filter_control, 0, sizeof(*final_filter_control) * sb_count);
-#if CONFIG_CCSO_EXT
     cm->ccso_info.ccso_enable[plane] = false;
   } else {
     cm->ccso_info.ccso_enable[plane] = true;
-#endif
   }
-#if CONFIG_CCSO_EXT
   if (cm->ccso_info.ccso_enable[plane]) {
-#else
-  bool at_least_one_sb_use_ccso = false;
-  for (int control_idx2 = 0;
-       final_filter_enabled[plane - 1] && control_idx2 < sb_count;
-       control_idx2++) {
-    if (final_filter_control[control_idx2]) {
-      at_least_one_sb_use_ccso = true;
-      break;
-    }
-  }
-  cm->ccso_info.ccso_enable[plane - 1] = at_least_one_sb_use_ccso;
-  if (at_least_one_sb_use_ccso) {
-#endif
     for (int y_sb = 0; y_sb < ccso_nvfb; y_sb++) {
       for (int x_sb = 0; x_sb < ccso_nhfb; x_sb++) {
-#if CONFIG_CCSO_EXT
         if (plane == AOM_PLANE_Y) {
           mi_params
               ->mi_grid_base[(1 << CCSO_BLK_SIZE >>
@@ -1256,9 +872,7 @@
                               (MI_SIZE_LOG2 - xd->plane[1].subsampling_x)) *
                                  x_sb]
               ->ccso_blk_y = final_filter_control[y_sb * ccso_nhfb + x_sb];
-        } else
-#endif
-            if (plane == AOM_PLANE_U) {
+        } else if (plane == AOM_PLANE_U) {
           mi_params
               ->mi_grid_base[(1 << CCSO_BLK_SIZE >>
                               (MI_SIZE_LOG2 - xd->plane[1].subsampling_y)) *
@@ -1279,26 +893,13 @@
         }
       }
     }
-#if CONFIG_CCSO_EXT
     memcpy(cm->ccso_info.filter_offset[plane], final_filter_offset[plane],
            sizeof(final_filter_offset[plane]));
     cm->ccso_info.quant_idx[plane] = final_quant_idx[plane];
     cm->ccso_info.ext_filter_support[plane] = final_ext_filter_support[plane];
-#if CONFIG_CCSO_BO_ONLY_OPTION
     cm->ccso_info.ccso_bo_only[plane] = final_ccso_bo_only[plane];
-#endif
     cm->ccso_info.max_band_log2[plane] = final_band_log2;
-#else
-    memcpy(cm->ccso_info.filter_offset[plane - 1],
-           final_filter_offset[plane - 1],
-           sizeof(final_filter_offset[plane - 1]));
-    cm->ccso_info.quant_idx[plane - 1] = final_quant_idx[plane - 1];
-    cm->ccso_info.ext_filter_support[plane - 1] =
-        final_ext_filter_support[plane - 1];
-#endif
-#if CONFIG_CCSO_EDGE_CLF
     cm->ccso_info.edge_clf[plane] = final_edge_classifier;
-#endif  // CONFIG_CCSO_EDGE_CLF
   }
   aom_free(unfiltered_dist_block);
   aom_free(training_dist_block);
@@ -1306,7 +907,6 @@
   aom_free(final_filter_control);
   aom_free(temp_rec_uv_buf);
   aom_free(best_filter_control);
-#if CONFIG_CCSO_EXT
   aom_free(src_cls0);
   aom_free(src_cls1);
   for (int d0 = 0; d0 < CCSO_INPUT_INTERVAL; d0++) {
@@ -1317,43 +917,32 @@
       }
     }
   }
-#endif
-#if CONFIG_CCSO_BO_ONLY_OPTION
   for (int band_num = 0; band_num < CCSO_BAND_NUM; band_num++) {
     aom_free(total_class_err_bo[band_num]);
     aom_free(total_class_cnt_bo[band_num]);
   }
-#endif
 }
 
 /* Derive the look-up table for a frame */
 void ccso_search(AV1_COMMON *cm, MACROBLOCKD *xd, int rdmult,
                  const uint16_t *ext_rec_y, uint16_t *rec_uv[3],
                  uint16_t *org_uv[3]) {
-#if CONFIG_CCSO_EDGE_CLF
   int rdmult_weight = clamp(cm->quant_params.base_qindex >> 3, 1, 37);
-#else
-  double rdmult_weight =
-      clamp_dbl(0.012 * pow(2, 0.0456 * cm->quant_params.base_qindex), 1, 37);
-#endif  // CONFIG_CCSO_EDGE_CLF
   int64_t rdmult_temp = (int64_t)rdmult * (int64_t)rdmult_weight;
-  if (rdmult_temp < INT_MAX) rdmult = (int)rdmult_temp;
-#if CONFIG_CCSO_EXT
+  if (rdmult_temp < INT_MAX)
+    rdmult = (int)rdmult_temp;
   else
     return;
-#endif
   const int num_planes = av1_num_planes(cm);
   av1_setup_dst_planes(xd->plane, &cm->cur_frame->buf, 0, 0, 0, num_planes,
                        NULL);
   ccso_stride = xd->plane[0].dst.width;
   ccso_stride_ext = xd->plane[0].dst.width + (CCSO_PADDING_SIZE << 1);
-#if CONFIG_CCSO_EXT
   derive_ccso_filter(cm, AOM_PLANE_Y, xd, org_uv[AOM_PLANE_Y], ext_rec_y,
                      rec_uv[AOM_PLANE_Y], rdmult);
 #if CONFIG_D143_CCSO_FM_FLAG
   cm->ccso_info.ccso_frame_flag = cm->ccso_info.ccso_enable[0];
 #endif  // CONFIG_D143_CCSO_FM_FLAG
-#endif
   if (num_planes > 1) {
     derive_ccso_filter(cm, AOM_PLANE_U, xd, org_uv[AOM_PLANE_U], ext_rec_y,
                        rec_uv[AOM_PLANE_U], rdmult);
diff --git a/av1/encoder/pickccso.h b/av1/encoder/pickccso.h
index 9d4b164..a47b603 100644
--- a/av1/encoder/pickccso.h
+++ b/av1/encoder/pickccso.h
@@ -29,39 +29,26 @@
 void ccso_search(AV1_COMMON *cm, MACROBLOCKD *xd, int rdmult,
                  const uint16_t *ext_rec_y, uint16_t *rec_uv[3],
                  uint16_t *org_uv[3]);
-#if CONFIG_CCSO_EXT
 void ccso_pre_compute_class_err(MACROBLOCKD *xd, const int plane,
                                 const uint16_t *src_y, const uint16_t *ref,
                                 const uint16_t *dst, uint8_t *src_cls0,
                                 uint8_t *src_cls1, const uint8_t shift_bits);
-#if CONFIG_CCSO_BO_ONLY_OPTION
 // pre compute classes for band offset only option
 void ccso_pre_compute_class_err_bo(MACROBLOCKD *xd, const int plane,
                                    const uint16_t *src_y, const uint16_t *ref,
                                    const uint16_t *dst,
                                    const uint8_t shift_bits);
-#endif
 void ccso_try_luma_filter(AV1_COMMON *cm, MACROBLOCKD *xd, const int plane,
                           const uint16_t *src_y, uint16_t *dst_yuv,
                           const int dst_stride, const int8_t *filter_offset,
                           uint8_t *src_cls0, uint8_t *src_cls1,
-                          const uint8_t shift_bits
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                          ,
-                          const uint8_t ccso_bo_only
-#endif
-);
+                          const uint8_t shift_bits, const uint8_t ccso_bo_only);
 void ccso_try_chroma_filter(AV1_COMMON *cm, MACROBLOCKD *xd, const int plane,
                             const uint16_t *src_y, uint16_t *dst_yuv,
                             const int dst_stride, const int8_t *filter_offset,
                             uint8_t *src_cls0, uint8_t *src_cls1,
-                            const uint8_t shift_bits
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                            ,
-                            const uint8_t ccso_bo_only
-#endif
-);
-#endif
+                            const uint8_t shift_bits,
+                            const uint8_t ccso_bo_only);
 
 void derive_ccso_filter(AV1_COMMON *cm, const int plane, MACROBLOCKD *xd,
                         const uint16_t *org_uv, const uint16_t *ext_rec_y,
@@ -71,54 +58,21 @@
                    const uint64_t *unfiltered_dist,
                    const uint64_t *training_dist, bool *m_filter_control,
                    uint64_t *cur_total_dist, int *cur_total_rate,
-                   bool *filter_enable
-#if !CONFIG_CCSO_EDGE_CLF
-                   ,
-                   const int rdmult
-#endif  // !CONFIG_CCSO_EDGE_CLF
-);
+                   bool *filter_enable);
 
 void compute_total_error(MACROBLOCKD *xd, const uint16_t *ext_rec_luma,
                          const int plane, const uint16_t *org_chroma,
                          const uint16_t *rec_uv_16, const uint8_t quanStep,
-                         const uint8_t ext_filter_support
-#if CONFIG_CCSO_EXT
-                         ,
-                         const int shift_bits
-#endif
-#if CONFIG_CCSO_EDGE_CLF
-                         ,
-                         int edge_clf
-#endif  // CONFIG_CCSO_EDGE_CLF
-);
-#if CONFIG_CCSO_EXT
-void ccso_compute_class_err(AV1_COMMON *cm, const int plane, MACROBLOCKD *xd,
-                            const int max_band_log2
-#if CONFIG_CCSO_EDGE_CLF
-                            ,
-                            const int max_edge_interval
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                            ,
-                            const uint8_t ccso_bo_only
-#endif
-);
-#endif
+                         const uint8_t ext_filter_support, const int shift_bits,
+                         int edge_clf);
 
-void derive_lut_offset(int8_t *temp_filter_offset
-#if CONFIG_CCSO_EXT
-                       ,
-                       const int max_band_log2
-#endif
-#if CONFIG_CCSO_EDGE_CLF
-                       ,
-                       const int max_edge_interval
-#endif  // CONFIG_CCSO_EDGE_CLF
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                       ,
-                       const uint8_t ccso_bo_only
-#endif
-);
+void ccso_compute_class_err(AV1_COMMON *cm, const int plane, MACROBLOCKD *xd,
+                            const int max_band_log2,
+                            const int max_edge_interval,
+                            const uint8_t ccso_bo_only);
+
+void derive_lut_offset(int8_t *temp_filter_offset, const int max_band_log2,
+                       const int max_edge_interval, const uint8_t ccso_bo_only);
 
 #ifdef __cplusplus
 }  // extern "C"
diff --git a/build/cmake/aom_config_defaults.cmake b/build/cmake/aom_config_defaults.cmake
index 8258b2d..7f68173 100644
--- a/build/cmake/aom_config_defaults.cmake
+++ b/build/cmake/aom_config_defaults.cmake
@@ -178,10 +178,6 @@
                    "AV2 experiment flag to disable ORIP for non-DC modes.")
 set_aom_config_var(CONFIG_MVP_IMPROVEMENT 1 "Enable MVP improvement")
 set_aom_config_var(
-  CONFIG_CCSO 1 "AV2 experiment flag to enable cross component sample offset.")
-set_aom_config_var(CONFIG_CCSO_EDGE_CLF 1
-                   "Enable adaptive edge classifier for CCSO.")
-set_aom_config_var(
   CONFIG_IBP_DC 1
   "AV2 experiment flag to enable intra bi-prediction for DC mode.")
 set_aom_config_var(CONFIG_AIMC 1 "AV2 adaptive intra mode coding flag.")
@@ -226,8 +222,6 @@
                    "Enables BV improvements for IBC")
 set_aom_config_var(CONFIG_IBC_MAX_DRL 1
                    "Enables Max DRL index signaling for IntraBC")
-set_aom_config_var(CONFIG_CCSO_EXT 1
-                   "AV2 experiment flag to enable extended CCSO.")
 set_aom_config_var(
   CONFIG_PALETTE_IMPROVEMENTS
   1
@@ -385,9 +379,6 @@
 set_aom_config_var(CONFIG_D143_CCSO_FM_FLAG 1
                    "Enable CCSO frame level joint flag.")
 
-set_aom_config_var(CONFIG_CCSO_BO_ONLY_OPTION 1
-                   "Enable CCSO band offset only option.")
-
 set_aom_config_var(
   CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX 1
   "CWG-D086: Context modeling for transform block zero flag signaling")
diff --git a/build/cmake/aom_experiment_deps.cmake b/build/cmake/aom_experiment_deps.cmake
index 4e8c66c..dee2d62 100644
--- a/build/cmake/aom_experiment_deps.cmake
+++ b/build/cmake/aom_experiment_deps.cmake
@@ -40,12 +40,6 @@
     change_config_and_warn(CONFIG_THROUGHPUT_ANALYSIS 0 !CONFIG_ACCOUNTING)
   endif()
 
-  # CONFIG_CCSO_EXT is dependent on CONFIG_CCSO. If CONFIG_CCSO is off,
-  # CONFIG_CCSO_EXT needs to be turned off.
-  if(NOT CONFIG_CCSO AND CONFIG_CCSO_EXT)
-    change_config_and_warn(CONFIG_CCSO_EXT 0 !CONFIG_CCSO)
-  endif()
-
   # CONFIG_EXPLICIT_BAWP is dependent on CONFIG_BAWP. If CONFIG_BAWP is off,
   # CONFIG_EXPLICIT_BAWP needs to be turned off.
   if(NOT CONFIG_BAWP AND CONFIG_EXPLICIT_BAWP)
@@ -141,11 +135,6 @@
     change_config_and_warn(CONFIG_TMVP_IMPROVE 0 !CONFIG_MVP_IMPROVEMENT)
   endif()
 
-  # CONFIG_CCSO_SIGFIX depends on CONFIG_CCSO_BO_ONLY_OPTION
-  if(NOT CONFIG_CCSO_BO_ONLY_OPTION AND CONFIG_CCSO_SIGFIX)
-    change_config_and_warn(CONFIG_CCSO_SIGFIX 0 !CONFIG_CCSO_BO_ONLY_OPTION)
-  endif()
-
   if(CONFIG_ML_PART_SPLIT)
     change_config_and_warn(CONFIG_TENSORFLOW_LITE 1 CONFIG_ML_PART_SPLIT)
   endif()
diff --git a/common/args.c b/common/args.c
index e911792..6318b67 100644
--- a/common/args.c
+++ b/common/args.c
@@ -130,9 +130,7 @@
     GET_PARAMS(enable_deblocking);
     GET_PARAMS(enable_cdef);
     GET_PARAMS(enable_restoration);
-#if CONFIG_CCSO
     GET_PARAMS(enable_ccso);
-#endif
     GET_PARAMS(enable_pef);
 #if CONFIG_LF_SUB_PU
     GET_PARAMS(enable_lf_sub_pu);
diff --git a/common/av1_config.c b/common/av1_config.c
index d2fe7e7..4cd6a9f 100644
--- a/common/av1_config.c
+++ b/common/av1_config.c
@@ -272,9 +272,7 @@
   AV1C_READ_BIT_OR_RETURN_ERROR(enable_imp_msk_bld);
 #endif  // CONFIG_D071_IMP_MSK_BLD
   AV1C_READ_BIT_OR_RETURN_ERROR(enable_fsc);
-#if CONFIG_CCSO
   AV1C_READ_BIT_OR_RETURN_ERROR(enable_ccso);
-#endif
   AV1C_READ_BIT_OR_RETURN_ERROR(enable_pef);
 #if CONFIG_LF_SUB_PU
   AV1C_READ_BIT_OR_RETURN_ERROR(enable_lf_sub_pu);
diff --git a/test/av1_ccso_simd_cmp.cc b/test/av1_ccso_simd_cmp.cc
index ff96c7a..479746a 100644
--- a/test/av1_ccso_simd_cmp.cc
+++ b/test/av1_ccso_simd_cmp.cc
@@ -42,16 +42,8 @@
                             const int y_uv_vscale, const int thr,
                             const int neg_thr, const int *src_loc,
                             const int max_val, const int blk_size,
-                            const bool isSingleBand, const uint8_t shift_bits
-#if CONFIG_CCSO_EDGE_CLF
-                            ,
-                            const int edge_clf
-#endif
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                            ,
-                            const uint8_t ccso_bo_only
-#endif
-);
+                            const bool isSingleBand, const uint8_t shift_bits,
+                            const int edge_clf, const uint8_t ccso_bo_only);
 typedef libaom_test::FuncParam<CCSO_WO_BUF> TestFuncsCCSO_WO_BUF;
 
 template <typename F>
@@ -121,9 +113,7 @@
   int max_val_;
   bool isSingleBand_;
   uint8_t shift_bits_;
-#if CONFIG_CCSO_EDGE_CLF
   int edge_clf_;
-#endif
 };
 
 class CCSOWOBUFTest : public CCSOFilterTest<CCSO_WO_BUF> {
@@ -132,30 +122,13 @@
     params_.ref_func(src_y_, dst_ref_, 0, 0, pic_width_, pic_height_, src_cls_,
                      offset_buf_, src_y_stride_, dst_stride_, y_uv_hscale_,
                      y_uv_vscale_, thr_, neg_thr_, src_loc_, max_val_,
-                     blk_size_, isSingleBand_, shift_bits_
-#if CONFIG_CCSO_EDGE_CLF
-                     ,
-                     edge_clf_
-#endif
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                     ,
-                     0
-#endif
-    );
+                     blk_size_, isSingleBand_, shift_bits_, edge_clf_, 0);
 
     ASM_REGISTER_STATE_CHECK(params_.tst_func(
         src_y_, dst_tst_, 0, 0, pic_width_, pic_height_, src_cls_, offset_buf_,
         src_y_stride_, dst_stride_, y_uv_hscale_, y_uv_vscale_, thr_, neg_thr_,
-        src_loc_, max_val_, blk_size_, isSingleBand_, shift_bits_
-#if CONFIG_CCSO_EDGE_CLF
-        ,
-        edge_clf_
-#endif
-#if CONFIG_CCSO_EDGE_CLF
-        ,
-        0
-#endif
-        ));
+        src_loc_, max_val_, blk_size_, isSingleBand_, shift_bits_, edge_clf_,
+        0));
 
     for (int r = 0; r < blk_size_; ++r) {
       for (int c = 0; c < blk_size_; ++c) {
@@ -193,12 +166,8 @@
                               const int pic_width, const int pic_height,
                               const int8_t *offset_buf, const int blk_size,
                               const int y_uv_hscale, const int y_uv_vscale,
-                              const int max_val, const uint8_t shift_bits
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                              ,
-                              const uint8_t ccso_bo_only
-#endif
-);
+                              const int max_val, const uint8_t shift_bits,
+                              const uint8_t ccso_bo_only);
 typedef libaom_test::FuncParam<CCSO_With_BUF> TestFuncsCCSO_With_BUF;
 
 class CCSOWITHBUFTest : public CCSOFilterTest<CCSO_With_BUF> {
@@ -208,22 +177,12 @@
     params_.ref_func(src_y_, dst_ref_, src_cls0_, src_cls1_, src_y_stride_,
                      dst_stride_, ccso_stride_, 0, 0, pic_width_, pic_height_,
                      offset_buf_, blk_size_, y_uv_hscale_, y_uv_vscale_,
-                     max_val_, shift_bits_
-#if CONFIG_CCSO_BO_ONLY_OPTION
-                     ,
-                     0
-#endif
-    );
+                     max_val_, shift_bits_, 0);
 
     ASM_REGISTER_STATE_CHECK(params_.tst_func(
         src_y_, dst_tst_, src_cls0_, src_cls1_, src_y_stride_, dst_stride_,
         ccso_stride_, 0, 0, pic_width_, pic_height_, offset_buf_, blk_size_,
-        y_uv_hscale_, y_uv_vscale_, max_val_, shift_bits_
-#if CONFIG_CCSO_BO_ONLY_OPTION
-        ,
-        0
-#endif
-        ));
+        y_uv_hscale_, y_uv_vscale_, max_val_, shift_bits_, 0));
 
     for (int r = 0; r < blk_size_; ++r) {
       for (int c = 0; c < blk_size_; ++c) {
@@ -264,12 +223,8 @@
                                 const int pic_width, const int pic_height,
                                 const int y_uv_hscale, const int y_uv_vscale,
                                 const int thr, const int neg_thr,
-                                const int *src_loc, const int blk_size
-#if CONFIG_CCSO_EDGE_CLF
-                                ,
-                                const int edge_clf
-#endif
-);
+                                const int *src_loc, const int blk_size,
+                                const int edge_clf);
 typedef libaom_test::FuncParam<CCSO_Derive_Src> TestFuncsCCSO_Derive_Src;
 
 class CCSODeriveSrcTest : public CCSOFilterTest<CCSO_Derive_Src> {
@@ -278,22 +233,13 @@
     ccso_stride_ = src_y_stride_ - (CCSO_PADDING_SIZE << 1);
     params_.ref_func(src_y_, src_cls0_ref, src_cls1_ref, src_y_stride_,
                      ccso_stride_, 0, 0, pic_width_, pic_height_, y_uv_hscale_,
-                     y_uv_vscale_, thr_, neg_thr_, src_loc_, blk_size_
-#if CONFIG_CCSO_EDGE_CLF
-                     ,
-                     edge_clf_
-#endif
-    );
+                     y_uv_vscale_, thr_, neg_thr_, src_loc_, blk_size_,
+                     edge_clf_);
 
     ASM_REGISTER_STATE_CHECK(params_.tst_func(
         src_y_, src_cls0_tst, src_cls1_tst, src_y_stride_, ccso_stride_, 0, 0,
         pic_width_, pic_height_, y_uv_hscale_, y_uv_vscale_, thr_, neg_thr_,
-        src_loc_, blk_size_
-#if CONFIG_CCSO_EDGE_CLF
-        ,
-        edge_clf_
-#endif
-        ));
+        src_loc_, blk_size_, edge_clf_));
 
     for (int r = 0; r < blk_size_; ++r) {
       for (int c = 0; c < blk_size_; ++c) {
diff --git a/tools/aom_entropy_optimizer.c b/tools/aom_entropy_optimizer.c
index 65a8e36..87721d2 100644
--- a/tools/aom_entropy_optimizer.c
+++ b/tools/aom_entropy_optimizer.c
@@ -1779,7 +1779,6 @@
       "default_filter_intra_mode_cdf[CDF_SIZE(FILTER_INTRA_MODES)]",
       0, &total_count, 0, mem_wanted, "Intra");
 
-#if CONFIG_CCSO_EXT
 #if CONFIG_ENTROPY_PARA
   cts_each_dim[0] = 3;
   cts_each_dim[1] = 2;
@@ -1794,7 +1793,6 @@
                      "default_ccso_cdf[2]",
                      0, &total_count, 0, mem_wanted, "Intra");
 #endif
-#endif
 
   cts_each_dim[0] = MAX_LR_FLEX_SWITCHABLE_BITS;
   cts_each_dim[1] = MAX_MB_PLANE;