[FFmpeg-devel] [PATCH 2/2] lavfi/vf_thumbnail_cuda: fix operator precedence bug

Rodger Combs rodger.combs at gmail.com
Tue Jul 30 10:51:43 EEST 2019


Discovered via a warning when building with clang
---
 libavfilter/vf_thumbnail_cuda.cu | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/vf_thumbnail_cuda.cu b/libavfilter/vf_thumbnail_cuda.cu
index c73e49fbc6..d4d4d791f6 100644
--- a/libavfilter/vf_thumbnail_cuda.cu
+++ b/libavfilter/vf_thumbnail_cuda.cu
@@ -71,7 +71,7 @@ __global__ void Thumbnail_ushort2(cudaTextureObject_t ushort2_tex,
     {
         ushort2 pixel = tex2D<ushort2>(ushort2_tex, x, y);
         atomicAdd(&histogram[(pixel.x + 128) >> 8], 1);
-        atomicAdd(&histogram[256 + (pixel.y + 128) >> 8], 1);
+        atomicAdd(&histogram[256 + ((pixel.y + 128) >> 8)], 1);
     }
 }
 
-- 
2.21.0



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