pad yuv additional 15 bytes to allow 16 pixels at a time to be processed with...

media/base/video_frame.cc

Index: media/base/video_frame.cc
===================================================================
--- media/base/video_frame.cc	(revision 48440)
+++ media/base/video_frame.cc	(working copy)
@@ -130,6 +130,8 @@
   return (NULL != data_[VideoFrame::kRGBPlane]);
 }
 
+static const int kFramePadBytes = 15;  // allows faster SIMD YUV convert
+
 bool VideoFrame::AllocateYUV() {
   DCHECK(format_ == VideoFrame::YV12 ||
          format_ == VideoFrame::YV16);
@@ -150,7 +152,7 @@
   if (format_ == VideoFrame::YV12) {
     uv_bytes /= 2;
   }
-  uint8* data = new uint8[y_bytes + (uv_bytes * 2)];
+  uint8* data = new uint8[y_bytes + (uv_bytes * 2) + kFramePadBytes];
   if (data) {
     planes_ = VideoFrame::kNumYUVPlanes;
     COMPILE_ASSERT(0 == VideoFrame::kYPlane, y_plane_data_must_be_index_0);