diff -r 000000000000 -r 6474c204b198 media/libvpx/vp8/encoder/arm/neon/picklpf_arm.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/media/libvpx/vp8/encoder/arm/neon/picklpf_arm.c	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,46 @@
+/*
+ *  Copyright (c) 2010 The WebM 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.
+ */
+
+#include "vp8/common/loopfilter.h"
+#include "vpx_scale/yv12config.h"
+
+extern void vp8_memcpy_partial_neon(unsigned char *dst_ptr,
+                                    unsigned char *src_ptr,
+                                    int sz);
+
+
+void vp8_yv12_copy_partial_frame_neon(YV12_BUFFER_CONFIG *src_ybc,
+                                      YV12_BUFFER_CONFIG *dst_ybc)
+{
+    unsigned char *src_y, *dst_y;
+    int yheight;
+    int ystride;
+    int yoffset;
+    int linestocopy;
+
+    yheight  = src_ybc->y_height;
+    ystride  = src_ybc->y_stride;
+
+    /* number of MB rows to use in partial filtering */
+    linestocopy = (yheight >> 4) / PARTIAL_FRAME_FRACTION;
+    linestocopy = linestocopy ? linestocopy << 4 : 16;     /* 16 lines per MB */
+
+    /* Copy extra 4 so that full filter context is available if filtering done
+     * on the copied partial frame and not original. Partial filter does mb
+     * filtering for top row also, which can modify3 pixels above.
+     */
+    linestocopy += 4;
+    /* partial image starts at ~middle of frame (macroblock border) */
+    yoffset  = ystride * (((yheight >> 5) * 16) - 4);
+    src_y = src_ybc->y_buffer + yoffset;
+    dst_y = dst_ybc->y_buffer + yoffset;
+
+    vp8_memcpy_partial_neon(dst_y, src_y, ystride * linestocopy);
+}