@@ -28,6 +28,7 @@

 #include "libavutil/avstring.h"

 #include "libavutil/bprint.h"

 #include "libavutil/channel_layout.h"

+#include "libavutil/opt.h"

 #include "libavutil/pixdesc.h"

 #include "libavutil/pixfmt.h"

 #include "libavutil/imgutils.h"

@@ -724,6 +725,15 @@ int configure_filtergraph(FilterGraph *fg)

         char args[255];

         snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);

         fg->graph->scale_sws_opts = av_strdup(args);

+

+        args[0] = 0;

+        if (ost->swr_dither_method)

+            av_strlcatf(args, sizeof(args), "dither_method=%d:", (int)ost->swr_dither_method);

+        if (ost->swr_dither_scale != 1.0)

+            av_strlcatf(args, sizeof(args), "dither_scale=%f:", ost->swr_dither_scale);

+        if (strlen(args))

+            args[strlen(args)-1] = 0;

+        av_opt_set(fg->graph, "aresample_swr_opts", args, 0);

     }

     if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)