libwebp-0.3.1

third_party/libwebp/utils/filters.c

Index: third_party/libwebp/utils/filters.c
diff --git a/third_party/libwebp/utils/filters.c b/third_party/libwebp/utils/filters.c
index 9486355abcf62204a73af386401a3373f88aa170..eb5bb34f410b653c0ea5e23514ff90c6173e0462 100644
--- a/third_party/libwebp/utils/filters.c
+++ b/third_party/libwebp/utils/filters.c
@@ -1,8 +1,10 @@
 // Copyright 2011 Google Inc. All Rights Reserved.
 //
-// This code is licensed under the same terms as WebM:
-//  Software License Agreement:  http://www.webmproject.org/license/software/
-//  Additional IP Rights Grant:  http://www.webmproject.org/license/additional/
+// Use of this source code is governed by a BSD-style license
+// that can be found in the COPYING file in the root of the source
+// tree. An additional intellectual property rights grant can be found
+// in the file PATENTS. All contributing project authors may
+// be found in the AUTHORS file in the root of the source tree.
 // -----------------------------------------------------------------------------
 //
 // Spatial prediction using various filters
@@ -154,8 +156,7 @@ static void GradientUnfilter(int width, int height, int stride, uint8_t* data) {
 #undef SANITY_CHECK
 
 // -----------------------------------------------------------------------------
-// Quick estimate of a potentially interesting filter mode to try, in addition
-// to the default NONE.
+// Quick estimate of a potentially interesting filter mode to try.
 
 #define SMAX 16
 #define SDIFF(a, b) (abs((a) - (b)) >> 4)   // Scoring diff, in [0..SMAX)
@@ -165,6 +166,7 @@ WEBP_FILTER_TYPE EstimateBestFilter(const uint8_t* data,
   int i, j;
   int bins[WEBP_FILTER_LAST][SMAX];
   memset(bins, 0, sizeof(bins));
+
   // We only sample every other pixels. That's enough.
   for (j = 2; j < height - 1; j += 2) {
     const uint8_t* const p = data + j * stride;