shithub: libvpx

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Adding get_block_variance_fn() function.

Change-Id: I67d934b6af899ffd4bcad2d913a650685fa64abd

--- a/vp9/encoder/vp9_firstpass.c

+++ b/vp9/encoder/vp9_firstpass.c

@@ -364,6 +364,19 @@

   output_stats(cpi, cpi->output_pkt_list, &cpi->twopass.total_stats);

 }

+static vp9_variance_fn_t get_block_variance_fn(BLOCK_SIZE bsize) {

+  switch (bsize) {

+    case BLOCK_8X8:

+      return vp9_mse8x8;

+    case BLOCK_16X8:

+      return vp9_mse16x8;

+    case BLOCK_8X16:

+      return vp9_mse8x16;

+    default:

+      return vp9_mse16x16;

+  }

+}

+

 static unsigned int zz_motion_search(VP9_COMP *cpi, MACROBLOCK *x,

                                      YV12_BUFFER_CONFIG *recon_buffer,

                                      int recon_yoffset) {

@@ -375,20 +388,8 @@

   const int ref_stride = xd->plane[0].pre[0].stride;

   unsigned int sse;

-  switch (xd->mi_8x8[0]->mbmi.sb_type) {

-    case BLOCK_8X8:

-      vp9_mse8x8(src, src_stride, ref, ref_stride, &sse);

-      break;

-    case BLOCK_16X8:

-      vp9_mse16x8(src, src_stride, ref, ref_stride, &sse);

-      break;

-    case BLOCK_8X16:

-      vp9_mse8x16(src, src_stride, ref, ref_stride, &sse);

-      break;

-    default:

-      vp9_mse16x16(src, src_stride, ref, ref_stride, &sse);

-      break;

-  }

+  vp9_variance_fn_t fn = get_block_variance_fn(xd->mi_8x8[0]->mbmi.sb_type);

+  fn(src, src_stride, ref, ref_stride, &sse);

   return sse;

 }

@@ -421,20 +422,7 @@

   further_steps -= sr;

   // override the default variance function to use MSE

-  switch (xd->mi_8x8[0]->mbmi.sb_type) {

-    case BLOCK_8X8:

-      v_fn_ptr.vf = vp9_mse8x8;

-      break;

-    case BLOCK_16X8:

-      v_fn_ptr.vf = vp9_mse16x8;

-      break;

-    case BLOCK_8X16:

-      v_fn_ptr.vf = vp9_mse8x16;

-      break;

-    default:

-      v_fn_ptr.vf = vp9_mse16x16;

-      break;

-  }

+  v_fn_ptr.vf = get_block_variance_fn(xd->mi_8x8[0]->mbmi.sb_type);

   // Set up pointers for this macro block recon buffer

   xd->plane[0].pre[0].buf = recon_buffer->y_buffer + recon_yoffset;

-- 

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