Merge commit '6d592fbd0d8e89ecade3fc93b36ea200213dc01c'

* commit '6d592fbd0d8e89ecade3fc93b36ea200213dc01c':
  avconv: split creating and (re-)configuring complex filtergraphs

Conflicts:
	ffmpeg_filter.c
	ffmpeg_opt.c

Merged-by: Michael Niedermayer <michael@niedermayer.cc>

ffmpeg.c

@@ -2765,11 +2765,6 @@ static int transcode_init(void)
                 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
     }
 
-    /* init complex filtergraphs */
-    for (i = 0; i < nb_filtergraphs; i++)
-        if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
-            return ret;
-
     /* for each output stream, we compute the right encoding parameters */
     for (i = 0; i < nb_output_streams; i++) {
         AVCodecContext *enc_ctx;