SDIFF             175 3rdparty/libwebp/utils/filters.c       const int diff0 = SDIFF(p[i], mean);
SDIFF             176 3rdparty/libwebp/utils/filters.c       const int diff1 = SDIFF(p[i], p[i - 1]);
SDIFF             177 3rdparty/libwebp/utils/filters.c       const int diff2 = SDIFF(p[i], p[i - width]);
SDIFF             180 3rdparty/libwebp/utils/filters.c       const int diff3 = SDIFF(p[i], grad_pred);