video_filter: fix warnings

[vlc] / modules / video_filter / gradient.c

diff --git a/modules/video_filter/gradient.c b/modules/video_filter/gradient.c
index b57797137e987dc497f9a5b1b573077e97824d9d..300fb8bc556e8b6d7b5145392977715e150ce54d 100644 (file)
--- a/modules/video_filter/gradient.c
+++ b/modules/video_filter/gradient.c
@@ -746,6 +746,7 @@ static int GradientCallback( vlc_object_t *p_this, char const *psz_var,
                              vlc_value_t oldval, vlc_value_t newval,
                              void *p_data )
 {
+    VLC_UNUSED(oldval);
     filter_sys_t *p_sys = (filter_sys_t *)p_data;
     if( !strcmp( psz_var, FILTER_PREFIX "mode" ) )
     {