shithub: libvpx

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Trap divide by 0.

Trap divide by 0 that could occur with a 0 rate target
in aq mode COMPLEXITY_AQ.

Change-Id: I034514f512b2a0db470ae8d37ea395278bf473cf

--- a/vp9/encoder/vp9_encodeframe.c

+++ b/vp9/encoder/vp9_encodeframe.c

@@ -380,8 +380,10 @@

       segment = 0;

     }

-    complexity_metric =

-      clamp((int)((projected_rate * 64) / target_rate), 16, 255);

+    if (target_rate > 0) {

+      complexity_metric =

+        clamp((int)((projected_rate * 64) / target_rate), 16, 255);

+    }

   }

   // Fill in the entires in the segment map corresponding to this SB64