1 files changed, 4 insertions, 0 deletions
diff --git a/libavfilter/vf_lut3d.c b/libavfilter/vf_lut3d.c
index 05318f8fc8..3c1b482d4e 100644
--- a/libavfilter/vf_lut3d.c
+++ b/libavfilter/vf_lut3d.c
@@ -656,10 +656,14 @@ static void update_clut(LUT3DContext *lut3d, const AVFrame *frame)
 static int config_output(AVFilterLink *outlink)
 {
     AVFilterContext *ctx = outlink->src;
+    LUT3DContext *lut3d = ctx->priv;
+    int ret;
 
     outlink->w = ctx->inputs[0]->w;
     outlink->h = ctx->inputs[0]->h;
     outlink->time_base = ctx->inputs[0]->time_base;
+    if ((ret = ff_dualinput_init(ctx, &lut3d->dinput)) < 0)
+        return ret;
     return 0;
 }