Merge commit '00d7369d'

* commit '00d7369d':
  vf_fieldorder: log when processing is skipped
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavfilter/vf_fieldorder.c

@@ -84,8 +84,13 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
     AVFrame *out;
 
     if (!frame->interlaced_frame ||
-        frame->top_field_first == s->dst_tff)
+        frame->top_field_first == s->dst_tff) {
+        av_log(ctx, AV_LOG_VERBOSE,
+               "Skipping %s.\n",
+               frame->interlaced_frame ?
+               "frame with same field order" : "progressive frame");
         return ff_filter_frame(outlink, frame);
+    }
 
     if (av_frame_is_writable(frame)) {
         out = frame;