Add avfilter_graph_config().

Originally committed as revision 25502 to svn://svn.ffmpeg.org/ffmpeg/trunk

doc/APIchanges

@@ -13,6 +13,9 @@ libavutil:   2009-03-08
 
 API changes, most recent first:
 
+2010-10-16 - r25502 - lavfi 1.52.0 - avfilter_graph_config()
+  Add the function avfilter_graph_config() in avfiltergraph.h.
+
 2010-10-15 - r25493 - lavf 52.83.0 - metadata API
   Change demuxers to export metadata in generic format and
   muxers to accept generic format. Deprecate the public

ffmpeg.c

@@ -452,12 +452,7 @@ static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
             return ret;
     }
 
-    /* configure all the filter links */
-    if ((ret = avfilter_graph_check_validity(graph, NULL)) < 0)
-        return ret;
-    if ((ret = avfilter_graph_config_formats(graph, NULL)) < 0)
-        return ret;
-    if ((ret = avfilter_graph_config_links(graph, NULL)) < 0)
+    if ((ret = avfilter_graph_config(graph, NULL)) < 0)
         return ret;
 
     codec->width  = ist->output_video_filter->inputs[0]->w;

ffplay.c

@@ -1849,9 +1849,8 @@ static int video_thread(void *arg)
     avfilter_graph_add_filter(graph, filt_src);
     avfilter_graph_add_filter(graph, filt_out);
 
-    if(avfilter_graph_check_validity(graph, NULL))           goto the_end;
-    if(avfilter_graph_config_formats(graph, NULL))           goto the_end;
-    if(avfilter_graph_config_links(graph, NULL))             goto the_end;
+    if (avfilter_graph_config(graph, NULL) < 0)
+        goto the_end;
 
     is->out_video_filter = filt_out;
 #endif

libavfilter/avfilter.h

@@ -25,8 +25,8 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFILTER_VERSION_MAJOR  1
-#define LIBAVFILTER_VERSION_MINOR 51
-#define LIBAVFILTER_VERSION_MICRO  1
+#define LIBAVFILTER_VERSION_MINOR 52
+#define LIBAVFILTER_VERSION_MICRO  0
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
                                                LIBAVFILTER_VERSION_MINOR, \

libavfilter/avfiltergraph.c

@@ -202,3 +202,16 @@ int avfilter_graph_config_formats(AVFilterGraph *graph, AVClass *log_ctx)
     return 0;
 }
 
+int avfilter_graph_config(AVFilterGraph *graphctx, AVClass *log_ctx)
+{
+    int ret;
+
+    if ((ret = avfilter_graph_check_validity(graphctx, log_ctx)))
+        return ret;
+    if ((ret = avfilter_graph_config_formats(graphctx, log_ctx)))
+        return ret;
+    if ((ret = avfilter_graph_config_links(graphctx, log_ctx)))
+        return ret;
+
+    return 0;
+}

libavfilter/avfiltergraph.h

@@ -69,6 +69,14 @@ int avfilter_graph_config_links(AVFilterGraph *graphctx, AVClass *log_ctx);
  */
 int avfilter_graph_config_formats(AVFilterGraph *graphctx, AVClass *log_ctx);
 
+/**
+ * Check validity and configure all the links and formats in the graph.
+ *
+ * @see avfilter_graph_check_validity(), avfilter_graph_config_links(),
+ * avfilter_graph_config_formats()
+ */
+int avfilter_graph_config(AVFilterGraph *graphctx, AVClass *log_ctx);
+
 /**
  * Free a graph and destroy its links.
  */

tools/graph2dot.c

@@ -152,9 +152,7 @@ int main(int argc, char **argv)
         return 1;
     }
 
-    if (avfilter_graph_check_validity(graph, NULL) ||
-        avfilter_graph_config_formats(graph, NULL) ||
-        avfilter_graph_config_links  (graph, NULL))
+    if (avfilter_graph_config(graph, NULL) < 0)
         return 1;
 
     print_digraph(outfile, graph);