shithub: libvpx

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ref: d04112d27f12613381611dc870807e7f39c7b8b7
parent: 903801f1ef7ac8d13d4f57571d048b604e8aaafd
author: James Zern <jzern@google.com>
date: Fri Jan 31 10:49:17 EST 2014 

vpxenc: cosmetics

find_mismatch() / compare_img(): const, whitespace

Change-Id: I1c65c2aac378535001720aca31e7437ee5492739


--- a/vpxenc.c
+++ b/vpxenc.c
@@ -474,7 +474,8 @@
 }
 
 #define mmin(a, b)  ((a) < (b) ? (a) : (b))
-static void find_mismatch(vpx_image_t *img1, vpx_image_t *img2,
+static void find_mismatch(const vpx_image_t *const img1,
+                          const vpx_image_t *const img2,
                           int yloc[4], int uloc[4], int vloc[4]) {
   const unsigned int bsize = 64;
   const unsigned int bsizey = bsize >> img1->y_chroma_shift;
@@ -487,10 +488,10 @@
   for (i = 0, match = 1; match && i < img1->d_h; i += bsize) {
     for (j = 0; match && j < img1->d_w; j += bsize) {
       int k, l;
-      int si = mmin(i + bsize, img1->d_h) - i;
-      int sj = mmin(j + bsize, img1->d_w) - j;
-      for (k = 0; match && k < si; k++)
-        for (l = 0; match && l < sj; l++) {
+      const int si = mmin(i + bsize, img1->d_h) - i;
+      const int sj = mmin(j + bsize, img1->d_w) - j;
+      for (k = 0; match && k < si; ++k) {
+        for (l = 0; match && l < sj; ++l) {
           if (*(img1->planes[VPX_PLANE_Y] +
                 (i + k) * img1->stride[VPX_PLANE_Y] + j + l) !=
               *(img2->planes[VPX_PLANE_Y] +
@@ -505,6 +506,7 @@
             break;
           }
         }
+      }
     }
   }
 
@@ -512,10 +514,10 @@
   for (i = 0, match = 1; match && i < c_h; i += bsizey) {
     for (j = 0; match && j < c_w; j += bsizex) {
       int k, l;
-      int si = mmin(i + bsizey, c_h - i);
-      int sj = mmin(j + bsizex, c_w - j);
-      for (k = 0; match && k < si; k++)
-        for (l = 0; match && l < sj; l++) {
+      const int si = mmin(i + bsizey, c_h - i);
+      const int sj = mmin(j + bsizex, c_w - j);
+      for (k = 0; match && k < si; ++k) {
+        for (l = 0; match && l < sj; ++l) {
           if (*(img1->planes[VPX_PLANE_U] +
                 (i + k) * img1->stride[VPX_PLANE_U] + j + l) !=
               *(img2->planes[VPX_PLANE_U] +
@@ -525,11 +527,12 @@
             uloc[2] = *(img1->planes[VPX_PLANE_U] +
                         (i + k) * img1->stride[VPX_PLANE_U] + j + l);
             uloc[3] = *(img2->planes[VPX_PLANE_U] +
-                        (i + k) * img2->stride[VPX_PLANE_V] + j + l);
+                        (i + k) * img2->stride[VPX_PLANE_U] + j + l);
             match = 0;
             break;
           }
         }
+      }
     }
   }
   vloc[0] = vloc[1] = vloc[2] = vloc[3] = -1;
@@ -536,10 +539,10 @@
   for (i = 0, match = 1; match && i < c_h; i += bsizey) {
     for (j = 0; match && j < c_w; j += bsizex) {
       int k, l;
-      int si = mmin(i + bsizey, c_h - i);
-      int sj = mmin(j + bsizex, c_w - j);
-      for (k = 0; match && k < si; k++)
-        for (l = 0; match && l < sj; l++) {
+      const int si = mmin(i + bsizey, c_h - i);
+      const int sj = mmin(j + bsizex, c_w - j);
+      for (k = 0; match && k < si; ++k) {
+        for (l = 0; match && l < sj; ++l) {
           if (*(img1->planes[VPX_PLANE_V] +
                 (i + k) * img1->stride[VPX_PLANE_V] + j + l) !=
               *(img2->planes[VPX_PLANE_V] +
@@ -554,12 +557,13 @@
             break;
           }
         }
+      }
     }
   }
 }
 
-static int compare_img(vpx_image_t *img1, vpx_image_t *img2)
-{
+static int compare_img(const vpx_image_t *const img1,
+                       const vpx_image_t *const img2) {
   const int c_w = (img1->d_w + img1->x_chroma_shift) >> img1->x_chroma_shift;
   const int c_h = (img1->d_h + img1->y_chroma_shift) >> img1->y_chroma_shift;
   int match = 1;
@@ -569,19 +573,19 @@
   match &= (img1->d_w == img2->d_w);
   match &= (img1->d_h == img2->d_h);
 
-  for (i = 0; i < img1->d_h; i++)
-    match &= (memcmp(img1->planes[VPX_PLANE_Y]+i*img1->stride[VPX_PLANE_Y],
-                     img2->planes[VPX_PLANE_Y]+i*img2->stride[VPX_PLANE_Y],
+  for (i = 0; i < img1->d_h; ++i)
+    match &= (memcmp(img1->planes[VPX_PLANE_Y] + i * img1->stride[VPX_PLANE_Y],
+                     img2->planes[VPX_PLANE_Y] + i * img2->stride[VPX_PLANE_Y],
                      img1->d_w) == 0);
 
-  for (i = 0; i < c_h; i++)
-    match &= (memcmp(img1->planes[VPX_PLANE_U]+i*img1->stride[VPX_PLANE_U],
-                     img2->planes[VPX_PLANE_U]+i*img2->stride[VPX_PLANE_U],
+  for (i = 0; i < c_h; ++i)
+    match &= (memcmp(img1->planes[VPX_PLANE_U] + i * img1->stride[VPX_PLANE_U],
+                     img2->planes[VPX_PLANE_U] + i * img2->stride[VPX_PLANE_U],
                      c_w) == 0);
 
-  for (i = 0; i < c_h; i++)
-    match &= (memcmp(img1->planes[VPX_PLANE_V]+i*img1->stride[VPX_PLANE_U],
-                     img2->planes[VPX_PLANE_V]+i*img2->stride[VPX_PLANE_U],
+  for (i = 0; i < c_h; ++i)
+    match &= (memcmp(img1->planes[VPX_PLANE_V] + i * img1->stride[VPX_PLANE_V],
+                     img2->planes[VPX_PLANE_V] + i * img2->stride[VPX_PLANE_V],
                      c_w) == 0);
 
   return match;
-- 
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