Prefix with "ff_" the functions:

ff_avfilter_graph_check_validity()
ff_avfilter_graph_config_links()
ff_avfilter_graph_config_formats()

and move their declaration to internal.h. These functions are never
used in application code, so it is better to consider them internal
functions, this can be changed later if necessary. Simplify API.

Originally committed as revision 25737 to svn://svn.ffmpeg.org/ffmpeg/trunk

doc/APIchanges

@@ -13,6 +13,14 @@ libavutil:   2009-03-08
 
 API changes, most recent first:
 
+2010-11-13 - r25737 - lavfi 1.61.0 - avfiltergraph.h
+  Remove declarations from avfiltergraph.h for the functions:
+  avfilter_graph_check_validity()
+  avfilter_graph_config_links()
+  avfilter_graph_config_formats()
+  which are now internal.
+  Use avfilter_graph_config() instead.
+
 2010-11-08 - r25708 - lavu 50.33.0 - eval.h
   Deprecate functions:
   av_parse_and_eval_expr(),

libavfilter/avfilter.h

@@ -25,7 +25,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFILTER_VERSION_MAJOR  1
-#define LIBAVFILTER_VERSION_MINOR 60
+#define LIBAVFILTER_VERSION_MINOR 61
 #define LIBAVFILTER_VERSION_MICRO  0
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \

libavfilter/avfiltergraph.c

@@ -25,6 +25,7 @@
 
 #include "avfilter.h"
 #include "avfiltergraph.h"
+#include "internal.h"
 
 AVFilterGraph *avfilter_graph_alloc(void)
 {
@@ -52,7 +53,7 @@ int avfilter_graph_add_filter(AVFilterGraph *graph, AVFilterContext *filter)
     return 0;
 }
 
-int avfilter_graph_check_validity(AVFilterGraph *graph, AVClass *log_ctx)
+int ff_avfilter_graph_check_validity(AVFilterGraph *graph, AVClass *log_ctx)
 {
     AVFilterContext *filt;
     int i, j;
@@ -82,7 +83,7 @@ int avfilter_graph_check_validity(AVFilterGraph *graph, AVClass *log_ctx)
     return 0;
 }
 
-int avfilter_graph_config_links(AVFilterGraph *graph, AVClass *log_ctx)
+int ff_avfilter_graph_config_links(AVFilterGraph *graph, AVClass *log_ctx)
 {
     AVFilterContext *filt;
     int i, ret;
@@ -194,7 +195,7 @@ static void pick_formats(AVFilterGraph *graph)
     }
 }
 
-int avfilter_graph_config_formats(AVFilterGraph *graph, AVClass *log_ctx)
+int ff_avfilter_graph_config_formats(AVFilterGraph *graph, AVClass *log_ctx)
 {
     /* find supported formats from sub-filters, and merge along links */
     if(query_formats(graph, log_ctx))
@@ -211,11 +212,11 @@ int avfilter_graph_config(AVFilterGraph *graphctx, AVClass *log_ctx)
 {
     int ret;
 
-    if ((ret = avfilter_graph_check_validity(graphctx, log_ctx)))
+    if ((ret = ff_avfilter_graph_check_validity(graphctx, log_ctx)))
         return ret;
-    if ((ret = avfilter_graph_config_formats(graphctx, log_ctx)))
+    if ((ret = ff_avfilter_graph_config_formats(graphctx, log_ctx)))
         return ret;
-    if ((ret = avfilter_graph_config_links(graphctx, log_ctx)))
+    if ((ret = ff_avfilter_graph_config_links(graphctx, log_ctx)))
         return ret;
 
     return 0;

libavfilter/avfiltergraph.h

@@ -52,33 +52,12 @@ AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, char *name);
  */
 int avfilter_graph_add_filter(AVFilterGraph *graphctx, AVFilterContext *filter);
 
-/**
- * Check for the validity of graph.
- *
- * A graph is considered valid if all its input and output pads are
- * connected.
- *
- * @return 0 in case of success, a negative value otherwise
- */
-int avfilter_graph_check_validity(AVFilterGraph *graphctx, AVClass *log_ctx);
-
-/**
- * Configure all the links of graphctx.
- *
- * @return 0 in case of success, a negative value otherwise
- */
-int avfilter_graph_config_links(AVFilterGraph *graphctx, AVClass *log_ctx);
-
-/**
- * Configure the formats of all the links in the graph.
- */
-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()
+ * @param graphctx the filter graph
+ * @param log_ctx context used for logging
+ * @return 0 in case of success, a negative AVERROR code otherwise
  */
 int avfilter_graph_config(AVFilterGraph *graphctx, AVClass *log_ctx);
 

libavfilter/internal.h

@@ -25,6 +25,7 @@
  */
 
 #include "avfilter.h"
+#include "avfiltergraph.h"
 
 void ff_dprintf_ref(void *ctx, AVFilterBufferRef *ref, int end);
 
@@ -34,4 +35,26 @@ void ff_dprintf_link(void *ctx, AVFilterLink *link, int end);
 
 #define FF_DPRINTF_START(ctx, func) dprintf(NULL, "%-16s: ", #func)
 
+/**
+ * Check for the validity of graph.
+ *
+ * A graph is considered valid if all its input and output pads are
+ * connected.
+ *
+ * @return 0 in case of success, a negative value otherwise
+ */
+int ff_avfilter_graph_check_validity(AVFilterGraph *graphctx, AVClass *log_ctx);
+
+/**
+ * Configure all the links of graphctx.
+ *
+ * @return 0 in case of success, a negative value otherwise
+ */
+int ff_avfilter_graph_config_links(AVFilterGraph *graphctx, AVClass *log_ctx);
+
+/**
+ * Configure the formats of all the links in the graph.
+ */
+int ff_avfilter_graph_config_formats(AVFilterGraph *graphctx, AVClass *log_ctx);
+
 #endif  /* AVFILTER_INTERNAL_H */