shithub: libvpx

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Revert "Correct the inter prediction coordinate..."

Change in 92b199061a13173d29247257f4ef906d38b012bf leads to frame parallel
decode failure in extreme case.

addresses issue #1010

Change-Id: I4fa488dac8e8c584f5eef4cae1640a579130d387

--- a/vp9/decoder/vp9_decodeframe.c

+++ b/vp9/decoder/vp9_decodeframe.c

@@ -575,10 +575,10 @@

   // width/height is not a multiple of 8 pixels.

   if (is_scaled || scaled_mv.col || scaled_mv.row ||

       (frame_width & 0x7) || (frame_height & 0x7)) {

-    int y1 = (y0_16 + (h - 1) * ys) >> SUBPEL_BITS;

+    int y1 = ((y0_16 + (h - 1) * ys) >> SUBPEL_BITS) + 1;

     // Get reference block bottom right horizontal coordinate.

-    int x1 = (x0_16 + (w - 1) * xs) >> SUBPEL_BITS;

+    int x1 = ((x0_16 + (w - 1) * xs) >> SUBPEL_BITS) + 1;

     int x_pad = 0, y_pad = 0;

     if (subpel_x || (sf->x_step_q4 != SUBPEL_SHIFTS)) {