avfilter/vf_chromanr: fix rounding of final output

2022-03-01 09:22:15 +01:00
parent 316e0ff752
commit 5ffad29d62
1 changed files with 2 additions and 2 deletions
--- a/libavfilter/vf_chromanr.c
+++ b/libavfilter/vf_chromanr.c
@@ -161,8 +161,8 @@ static int distance ## _slice##name(AVFilterContext *ctx, void *arg,
                }                                                                      \
            }                                                                          \
                                                                                       \
-            out_uptr[x] = su / cn;                                                     \
-            out_vptr[x] = sv / cn;                                                     \
+            out_uptr[x] = (su + (cn >> 1)) / cn;                                       \
+            out_vptr[x] = (sv + (cn >> 1)) / cn;                                       \
        }                                                                              \
                                                                                       \
        out_uptr += out_ulinesize / sizeof(type);                                      \