@@ -192,9 +192,9 @@ static int config_props(AVFilterLink *inlink)

     fade->alpha = fade->alpha ? ff_fmt_is_in(inlink->format, alpha_pix_fmts) : 0;

     fade->is_packed_rgb = ff_fill_rgba_map(fade->rgba_map, inlink->format) >= 0;

-    /* CCIR601/709 black level unless input is RGB or has alpha */

+    /* use CCIR601/709 black level for studio-level pixel non-alpha components */

     fade->black_level =

-            ff_fmt_is_in(inlink->format, studio_level_pix_fmts) || fade->alpha ? 0 : 16;

+            ff_fmt_is_in(inlink->format, studio_level_pix_fmts) && !fade->alpha ? 16 : 0;

     /* 32768 = 1 << 15, it is an integer representation

      * of 0.5 and is for rounding. */

     fade->black_level_scaled = (fade->black_level << 16) + 32768;