@@ -28,6 +28,7 @@ version next:

 - rv34: frame-level multi-threading

 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec

 - Improved PGS subtitle decoder

+- dumpgraph option to lavfi device

 version 0.9:

@@ -41,6 +41,7 @@

 typedef struct {

     AVClass *class;          ///< class for private options

     char          *graph_str;

+    char          *dump_graph;

     AVFilterGraph *graph;

     AVFilterContext **sinks;

     int *sink_stream_map;

@@ -230,6 +231,13 @@ av_cold static int lavfi_read_header(AVFormatContext *avctx,

     if ((ret = avfilter_graph_config(lavfi->graph, avctx)) < 0)

         FAIL(ret);

+    if (lavfi->dump_graph) {

+        char *dump = avfilter_graph_dump(lavfi->graph, lavfi->dump_graph);

+        fputs(dump, stderr);

+        fflush(stderr);

+        av_free(dump);

+    }

+

     /* fill each stream with the information in the corresponding sink */

     for (i = 0; i < avctx->nb_streams; i++) {

         AVFilterLink *link = lavfi->sinks[lavfi->stream_sink_map[i]]->inputs[0];

@@ -329,6 +337,7 @@ static int lavfi_read_packet(AVFormatContext *avctx, AVPacket *pkt)

 static const AVOption options[] = {

     { "graph", "Libavfilter graph", OFFSET(graph_str),  AV_OPT_TYPE_STRING, {.str = NULL }, 0,  0, DEC },

+    { "dumpgraph", "Dump graph to stderr", OFFSET(dump_graph), AV_OPT_TYPE_STRING, {.str = NULL}, 0,  0, DEC },

     { NULL },

 };