video_filter: fix warnings

[vlc] / modules / video_filter / extract.c

diff --git a/modules/video_filter/extract.c b/modules/video_filter/extract.c
index b3d21fe808f2f5673fc89197e94dbd228fd3ae7a..020c3de6b7fe281283237a8b936927fe3322c5f2 100644 (file)
--- a/modules/video_filter/extract.c
+++ b/modules/video_filter/extract.c
@@ -771,6 +771,7 @@ static int ExtractCallback( 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 "component" ) )