YUY2ToI422 coalesce rows for small images

source/planar_functions.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 429 matching lines @@
   // Negative height means invert the image.
   if (height < 0) {
     height = -height;
     src_yuy2 = src_yuy2 + (height - 1) * src_stride_yuy2;
     src_stride_yuy2 = -src_stride_yuy2;
   }
   // Coalesce rows.
   if (src_stride_yuy2 == width * 2 &&
       dst_stride_y == width &&
       dst_stride_u * 2 == width &&
-      dst_stride_v * 2 == width) {
+      dst_stride_v * 2 == width &&
+      width * height <= 32768) {
     width *= height;
     height = 1;
     src_stride_yuy2 = dst_stride_y = dst_stride_u = dst_stride_v = 0;
   }
 #if defined(HAS_YUY2TOYROW_SSE2)
   if (TestCpuFlag(kCpuHasSSE2)) {
     YUY2ToUV422Row = YUY2ToUV422Row_Any_SSE2;
     YUY2ToYRow = YUY2ToYRow_Any_SSE2;
     if (IS_ALIGNED(width, 16)) {
       YUY2ToUV422Row = YUY2ToUV422Row_SSE2;
@@ skipping 63 matching lines @@
   // Negative height means invert the image.
   if (height < 0) {
     height = -height;
     src_uyvy = src_uyvy + (height - 1) * src_stride_uyvy;
     src_stride_uyvy = -src_stride_uyvy;
   }
   // Coalesce rows.
   if (src_stride_uyvy == width * 2 &&
       dst_stride_y == width &&
       dst_stride_u * 2 == width &&
-      dst_stride_v * 2 == width) {
+      dst_stride_v * 2 == width &&
+      width * height <= 32768) {
     width *= height;
     height = 1;
     src_stride_uyvy = dst_stride_y = dst_stride_u = dst_stride_v = 0;
   }
 #if defined(HAS_UYVYTOYROW_SSE2)
   if (TestCpuFlag(kCpuHasSSE2)) {
     UYVYToUV422Row = UYVYToUV422Row_Any_SSE2;
     UYVYToYRow = UYVYToYRow_Any_SSE2;
     if (IS_ALIGNED(width, 16)) {
       UYVYToUV422Row = UYVYToUV422Row_SSE2;
@@ skipping 2416 matching lines @@
     }
     free_aligned_buffer_64(rows);
   }
   return 0;
 }
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif