firstpass.c: fix an UBSAN/IOC error

Change-Id: I579286e6741b689ae4281a35beb7b8f95c3ffce5

firstpass.c: fix an UBSAN/IOC error
Change-Id: I579286e6741b689ae4281a35beb7b8f95c3ffce5
fd500f95 · Yaowu Xu · 6382727d · fd500f95
Commit fd500f95 authored May 31, 2016 by Yaowu Xu
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vp8/encoder/firstpass.c vp8/encoder/firstpass.c +2 -1

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--- a/vp8/encoder/firstpass.c
+++ b/vp8/encoder/firstpass.c
@@ -2808,7 +2808,8 @@ static void find_next_key_frame(VP8_COMP *cpi, FIRSTPASS_STATS *this_frame)
             * static scene.
             */
            if ( detect_transition_to_still( cpi, i,
-                                             (cpi->key_frame_frequency-i),
+                                             ((int)(cpi->key_frame_frequency) -
+                                              (int)i),
                                             loop_decay_rate,
                                             decay_accumulator ) )
            {