Fixes: runtime error: left shift of negative value -3
Fixes: 4524/clusterfuzz-testcase-minimized-6055590120914944

Found-by: continuous fuzzing process 
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
 libavcodec/hevcdsp_template.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/hevcdsp_template.c b/libavcodec/hevcdsp_template.c
index 0623cfad89..4017af8eb0 100644
--- a/libavcodec/hevcdsp_template.c
+++ b/libavcodec/hevcdsp_template.c
@@ -1051,7 +1051,7 @@ static void FUNC(put_hevc_qpel_bi_w_hv)(uint8_t *_dst, 
ptrdiff_t _dststride, uin
     for (y = 0; y < height; y++) {
         for (x = 0; x < width; x++)
             dst[x] = av_clip_pixel(((QPEL_FILTER(tmp, MAX_PB_SIZE) >> 6) * wx1 
+ src2[x] * wx0 +
-                                    ((ox0 + ox1 + 1) << log2Wd)) >> (log2Wd + 
1));
+                                    ((ox0 + ox1 + 1) * (1 << log2Wd))) >> 
(log2Wd + 1));
         tmp  += MAX_PB_SIZE;
         dst  += dststride;
         src2 += MAX_PB_SIZE;
-- 
2.15.1

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