Remove I411 support, update doc and switch to side by side test

source/convert_to_argb.cc

 /*
  *  Copyright 2011 The LibYuv Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE 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.
  */
 
@@ skipping 49 matching lines @@
       src_width <= 0 || crop_width <= 0 ||
       src_height == 0 || crop_height == 0) {
     return -1;
   }
   if (src_height < 0) {
     inv_crop_height = -inv_crop_height;
   }
 
   if (need_buf) {
     int argb_size = crop_width * 4 * abs_crop_height;
-    rotate_buffer = (uint8*)malloc(argb_size);
+    rotate_buffer = (uint8*)malloc(argb_size);  /* NOLINT */
     if (!rotate_buffer) {
       return 1;  // Out of memory runtime error.
     }
     crop_argb = rotate_buffer;
     argb_stride = crop_width * 4;
   }
 
   switch (format) {
     // Single plane formats
     case FOURCC_YUY2:
@@ skipping 174 matching lines @@
         src_u = sample + src_width * (abs_src_height + crop_y) + crop_x;
         src_v = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x;
       }
       r = I444ToARGB(src_y, src_width,
                      src_u, src_width,
                      src_v, src_width,
                      crop_argb, argb_stride,
                      crop_width, inv_crop_height);
       break;
     }
-    case FOURCC_I411: {
-      int quarterwidth = (src_width + 3) / 4;
-      const uint8* src_y = sample + src_width * crop_y + crop_x;
-      const uint8* src_u = sample + src_width * abs_src_height +
-          quarterwidth * crop_y + crop_x / 4;
-      const uint8* src_v = sample + src_width * abs_src_height +
-          quarterwidth * (abs_src_height + crop_y) + crop_x / 4;
-      r = I411ToARGB(src_y, src_width,
-                     src_u, quarterwidth,
-                     src_v, quarterwidth,
-                     crop_argb, argb_stride,
-                     crop_width, inv_crop_height);
-      break;
-    }
 #ifdef HAVE_JPEG
     case FOURCC_MJPG:
       r = MJPGToARGB(sample, sample_size,
                      crop_argb, argb_stride,
                      src_width, abs_src_height, crop_width, inv_crop_height);
       break;
 #endif
     default:
       r = -1;  // unknown fourcc - return failure code.
   }
 
   if (need_buf) {
     if (!r) {
       r = ARGBRotate(crop_argb, argb_stride,
                      dest_argb, dest_argb_stride,
                      crop_width, abs_crop_height, rotation);
     }
     free(rotate_buffer);
   }
 
   return r;
 }
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif