shithub: libvpx

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Remove unused is_background function

Change-Id: Ia540eac5f066ae95280c2f898370eddf0110c279

--- a/vp9/encoder/vp9_encodeframe.c

+++ b/vp9/encoder/vp9_encodeframe.c

@@ -1282,36 +1282,6 @@

   }

 }

-static int is_background(const VP9_COMP *cpi, const TileInfo *const tile,

-                         int mi_row, int mi_col) {

-  // This assumes the input source frames are of the same dimension.

-  const int row8x8_remaining = tile->mi_row_end - mi_row;

-  const int col8x8_remaining = tile->mi_col_end - mi_col;

-  const int x = mi_col * MI_SIZE;

-  const int y = mi_row * MI_SIZE;

-  const int src_stride = cpi->Source->y_stride;

-  const uint8_t *const src = &cpi->Source->y_buffer[y * src_stride + x];

-  const int pre_stride = cpi->Last_Source->y_stride;

-  const uint8_t *const pre = &cpi->Last_Source->y_buffer[y * pre_stride + x];

-  int this_sad = 0;

-  int threshold = 0;

-

-  if (row8x8_remaining >= MI_BLOCK_SIZE &&

-      col8x8_remaining >= MI_BLOCK_SIZE) {

-    this_sad = cpi->fn_ptr[BLOCK_64X64].sdf(src, src_stride, pre, pre_stride);

-    threshold = (1 << 12);

-  } else {

-    int r, c;

-    for (r = 0; r < row8x8_remaining; r += 2)

-      for (c = 0; c < col8x8_remaining; c += 2)

-        this_sad += cpi->fn_ptr[BLOCK_16X16].sdf(src, src_stride,

-                                                 pre, pre_stride);

-    threshold = (row8x8_remaining * col8x8_remaining) << 6;

-  }

-

-  return this_sad < 2 * threshold;

-}

-

 static void update_state_rt(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx,

                             int mi_row, int mi_col, int bsize) {

   VP9_COMMON *const cm = &cpi->common;