@@ -228,8 +228,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)

         av_frame_free(&in);

         return AVERROR(ENOMEM);

     }

-

-    out->pts = in->pts;

+    av_frame_copy_props(out, in);

     if (in->sample_aspect_ratio.num == 0) {

         out->sample_aspect_ratio = in->sample_aspect_ratio;