Fix possible typos in RGB->YUV conversion

media/base/yuv_convert_c.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/base/yuv_convert.h"
 #include "media/base/yuv_convert_internal.h"
 
 namespace media {
 
 static int clip_byte(int x) {
@@ skipping 17 matching lines @@
   for (int i = 0; i < height; ++i) {
     for (int j = 0; j < width; ++j) {
       // Since the input pixel format is RGB32, there are 4 bytes per pixel.
       const uint8* pixel = rgbframe + 4 * j;
       yplane[j] = clip_byte(((pixel[2] * 66 + pixel[1] * 129 +
                              pixel[0] * 25 + 128) >> 8) + 16);
       if (i % 2 == 0 && j % 2 == 0) {
         uplane[j / 2] = clip_byte(((pixel[2] * -38 + pixel[1] * -74 +
                                    pixel[0] * 112 + 128) >> 8) + 128);
         vplane[j / 2] = clip_byte(((pixel[2] * 112 + pixel[1] * -94 +
-                                    pixel[1] * -18 + 128) >> 8) + 128);
+                                    pixel[0] * -18 + 128) >> 8) + 128);
       }
     }
 
     rgbframe += rgbstride;
     yplane += ystride;
     if (i % 2 == 0) {
       uplane += uvstride;
       vplane += uvstride;
     }
   }
@@ skipping 11 matching lines @@
   for (int i = 0; i < height; ++i) {
     for (int j = 0; j < width; ++j) {
       // Since the input pixel format is RGB24, there are 3 bytes per pixel.
       const uint8* pixel = rgbframe + 3 * j;
       yplane[j] = clip_byte(((pixel[2] * 66 + pixel[1] * 129 +
                               pixel[0] * 25 + 128) >> 8) + 16);
       if (i % 2 == 0 && j % 2 == 0) {
         uplane[j / 2] = clip_byte(((pixel[2] * -38 + pixel[1] * -74 +
                                     pixel[0] * 112 + 128) >> 8) + 128);
         vplane[j / 2] = clip_byte(((pixel[2] * 112 + pixel[1] * -94 +
-                                    pixel[1] * -18 + 128) >> 8) + 128);
+                                    pixel[0] * -18 + 128) >> 8) + 128);
       }
     }
 
     rgbframe += rgbstride;
     yplane += ystride;
     if (i % 2 == 0) {
       uplane += uvstride;
       vplane += uvstride;
     }
   }
@@ skipping 19 matching lines @@
     for (int j = 0; j < (width / 2); ++j) {
       yplane[0] = src[0];
       yplane[1] = src[2];
       src += 4;
       yplane += 2;
     }
   }
 }
 
 }  // namespace media