From: Dan Zhu <zxdan@google.com>
Date: Fri, 28 Jun 2019 21:07:44 +0000 (-0700)
Subject: add flags for empty blocks
X-Git-Tag: v1.8.2~177
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ee097c75ce15cbcf6603e1a47a7da36ce16185ce;p=libvpx

add flags for empty blocks

Change-Id: Iedf3bdd87d203db5163d3cc47fcbef1fd002218f
---

diff --git a/tools/3D-Reconstruction/sketch_3D_reconstruction/MotionField.pde b/tools/3D-Reconstruction/sketch_3D_reconstruction/MotionField.pde
index 883a8f831..a5e04b6a9 100644
--- a/tools/3D-Reconstruction/sketch_3D_reconstruction/MotionField.pde
+++ b/tools/3D-Reconstruction/sketch_3D_reconstruction/MotionField.pde
@@ -61,6 +61,9 @@ class MotionField {
       PVector mv = motion_field.get(i);
       if (mv.z > 0) {
         motion_field.set(i, new PVector(mv.x / mv.z, mv.y / mv.z, 0));
+      } else  // there is nothing in the block, use -1 to mark it.
+      {
+        motion_field.set(i, new PVector(0.0, 0.0, -1));
       }
     }
   }
@@ -85,7 +88,12 @@ class MotionField {
       mvs[i] = "";
       for (int j = 0; j < c_num; j++) {
         PVector mv = motion_field.get(i * c_num + j);
-        mvs[i] += str(mv.x) + "," + str(mv.y);
+        if (mv.z != -1) {
+          mvs[i] += str(mv.x) + "," + str(mv.y);
+        } else  // there is nothing
+        {
+          mvs[i] += "-,-";
+        }
         if (j != c_num - 1) mvs[i] += ";";
       }
     }