@@ -27,6 +27,7 @@

 typedef struct MaskedMergeContext {

     const AVClass *class;

     int width[4], height[4];

+    int linesize[4];

     int nb_planes;

     int planes;

     int half, depth;

@@ -91,7 +91,7 @@ static int process_frame(FFFrameSync *fs)

         for (p = 0; p < s->nb_planes; p++) {

             if (!((1 << p) & s->planes)) {

                 av_image_copy_plane(out->data[p], out->linesize[p], base->data[p], base->linesize[p],

-                                    s->width[p], s->height[p]);

+                                    s->linesize[p], s->height[p]);

                 continue;

             }

@@ -229,6 +229,9 @@ static int config_output(AVFilterLink *outlink)

     outlink->sample_aspect_ratio = base->sample_aspect_ratio;

     outlink->frame_rate = base->frame_rate;

+    if ((ret = av_image_fill_linesizes(s->linesize, outlink->format, outlink->w)) < 0)

+        return ret;

+

     if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0)

         return ret;