shithub: libvpx

Download patch

ref: 077144d2064edbd5dcd13ac677bfef87e807da6a
parent: 94103308937ec7118cce82bbd776f282b0eca584
author: Yaowu Xu <[email protected]>
date: Fri May 23 08:23:29 EDT 2014

Use extreme values for input in convovle tests

The intepolation filter functions can be better tested withe extreme
values, especially given the optimization functions are prone to
overflow signed 16 bit intermediate value when operation order is
wrong.

Change-Id: I712142b0bc1e5969c692c0486a57ffa37c9742b5

--- a/test/convolve_test.cc

+++ b/test/convolve_test.cc

@@ -221,8 +221,12 @@

     }

     ::libvpx_test::ACMRandom prng;

-    for (int i = 0; i < kInputBufferSize; ++i)

-      input_[i] = prng.Rand8Extremes();

+    for (int i = 0; i < kInputBufferSize; ++i) {

+      if (i & 1)

+        input_[i] = 255;

+      else

+        input_[i] = prng.Rand8Extremes();

+    }

   }

   void SetConstantInput(int value) {