Removing Daala-specific deringing code

No point in keeping them in sync now that all the code is reformatted

Change-Id: I8a062253ed6a5f86028cd5a2a922b3c760def6fb

av1/common/dering.c

@@ -116,8 +116,7 @@ void av1_dering_frame(YV12_BUFFER_CONFIG *frame, AV1_COMMON *cm,
                             sbc * bsize[pli] * MAX_MIB_SIZE],
                   stride, nhb, nvb, sbc, sbr, nhsb, nvsb, dec[pli], dir, pli,
                   &bskip[MAX_MIB_SIZE * sbr * cm->mi_cols + MAX_MIB_SIZE * sbc],
-                  cm->mi_cols, threshold, OD_DERING_NO_CHECK_OVERLAP,
-                  coeff_shift);
+                  cm->mi_cols, threshold, coeff_shift);
         for (r = 0; r < bsize[pli] * nvb; ++r) {
           for (c = 0; c < bsize[pli] * nhb; ++c) {
 #if CONFIG_AOM_HIGHBITDEPTH

av1/common/od_dering.c

@@ -35,9 +35,6 @@ const int OD_DIRECTION_OFFSETS_TABLE[8][3] = {
   { 1 * OD_FILT_BSTRIDE + 0, 2 * OD_FILT_BSTRIDE - 1, 3 * OD_FILT_BSTRIDE - 1 },
 };
 
-const double OD_DERING_GAIN_TABLE[OD_DERING_LEVELS] = { 0, 0.5,  0.707,
-                                                        1, 1.41, 2 };
-
 /* Detect direction. 0 means 45-degree up-right, 2 is horizontal, and so on.
    The search minimizes the weighted variance along all the lines in a
    particular direction, i.e. the squared error between the input and a
@@ -252,7 +249,7 @@ void od_dering(const od_dering_opt_vtbl *vtbl, int16_t *y, int ystride,
                int sby, int nhsb, int nvsb, int xdec,
                int dir[OD_DERING_NBLOCKS][OD_DERING_NBLOCKS], int pli,
                unsigned char *bskip, int skip_stride, int threshold,
-               int overlap, int coeff_shift) {
+               int coeff_shift) {
   int i;
   int j;
   int bx;
@@ -299,35 +296,7 @@ void od_dering(const od_dering_opt_vtbl *vtbl, int16_t *y, int ystride,
   }
   for (by = 0; by < nvb; by++) {
     for (bx = 0; bx < nhb; bx++) {
-      int skip;
-#if defined(DAALA_ODINTRIN)
-      int xstart;
-      int ystart;
-      int xend;
-      int yend;
-      xstart = ystart = 0;
-      xend = yend = (2 >> xdec);
-      if (overlap) {
-        xstart -= (sbx != 0);
-        ystart -= (sby != 0);
-        xend += (sbx != nhsb - 1);
-        yend += (sby != nvsb - 1);
-      }
-      skip = 1;
-      /* We look at whether the current block and its 4x4 surrounding (due to
-         lapping) are skipped to avoid filtering the same content multiple
-         times. */
-      for (i = ystart; i < yend; i++) {
-        for (j = xstart; j < xend; j++) {
-          skip = skip && bskip[((by << 1 >> xdec) + i) * skip_stride +
-                               (bx << 1 >> xdec) + j];
-        }
-      }
-#else
-      (void)overlap;
-      skip = bskip[by * skip_stride + bx];
-#endif
-      if (skip) thresh[by][bx] = 0;
+      if (bskip[by * skip_stride + bx]) thresh[by][bx] = 0;
     }
   }
   for (by = 0; by < nvb; by++) {

av1/common/od_dering.h

@@ -21,12 +21,6 @@ typedef int16_t od_dering_in;
 
 #define OD_DERINGSIZES (2)
 
-#define OD_DERING_NO_CHECK_OVERLAP (0)
-#define OD_DERING_CHECK_OVERLAP (1)
-
-#define OD_DERING_LEVELS (6)
-extern const double OD_DERING_GAIN_TABLE[OD_DERING_LEVELS];
-
 #define OD_DERING_NBLOCKS (OD_BSIZE_MAX / 8)
 
 #define OD_FILT_BORDER (3)
@@ -54,7 +48,7 @@ void od_dering(const od_dering_opt_vtbl *vtbl, int16_t *y, int ystride,
                int sby, int nhsb, int nvsb, int xdec,
                int dir[OD_DERING_NBLOCKS][OD_DERING_NBLOCKS], int pli,
                unsigned char *bskip, int skip_stride, int threshold,
-               int overlap, int coeff_shift);
+               int coeff_shift);
 void od_filter_dering_direction_c(int16_t *y, int ystride, const int16_t *in,
                                   int ln, int threshold, int dir);
 void od_filter_dering_orthogonal_c(int16_t *y, int ystride, const int16_t *in,

av1/encoder/pickdering.c

@@ -108,13 +108,13 @@ int av1_dering_search(YV12_BUFFER_CONFIG *frame, const YV12_BUFFER_CONFIG *ref,
         int threshold;
         level = compute_level_from_index(best_level, gi);
         threshold = level << coeff_shift;
-        od_dering(
-            &OD_DERING_VTBL_C, dst, MAX_MIB_SIZE * bsize[0],
-            &src[sbr * stride * bsize[0] * MAX_MIB_SIZE +
-                 sbc * bsize[0] * MAX_MIB_SIZE],
-            cm->mi_cols * bsize[0], nhb, nvb, sbc, sbr, nhsb, nvsb, 0, dir, 0,
-            &bskip[MAX_MIB_SIZE * sbr * cm->mi_cols + MAX_MIB_SIZE * sbc],
-            cm->mi_cols, threshold, OD_DERING_NO_CHECK_OVERLAP, coeff_shift);
+        od_dering(&OD_DERING_VTBL_C, dst, MAX_MIB_SIZE * bsize[0],
+                  &src[sbr * stride * bsize[0] * MAX_MIB_SIZE +
+                       sbc * bsize[0] * MAX_MIB_SIZE],
+                  cm->mi_cols * bsize[0], nhb, nvb, sbc, sbr, nhsb, nvsb, 0,
+                  dir, 0,
+                  &bskip[MAX_MIB_SIZE * sbr * cm->mi_cols + MAX_MIB_SIZE * sbc],
+                  cm->mi_cols, threshold, coeff_shift);
         cur_mse = (int)compute_dist(
             dst, MAX_MIB_SIZE * bsize[0],
             &ref_coeff[sbr * stride * bsize[0] * MAX_MIB_SIZE +