lavfi: remove avfilter_default_item_name() from public API

The function was introduced in 4d6a8a2bdb and is not used anymore
outside avfilter.c.

This avoids to pollute the public API with an apparently unnecessary
function. The function was introduced a few days ago, so removing it from
the public API should do no much harm.

doc/APIchanges

@@ -18,9 +18,6 @@ API changes, most recent first:
 2012-06-05 - xxxxxxx - lavc 54.24.100
   Add pkt_duration field to AVFrame.
 
-2012-06-04 - xxxxxxx - lafi 2.78.100
-  Add avfilter_default_filter_name() function in avfilter.h.
-
 2012-05-24 - xxxxxxx - lavu 51.54.100
   Move AVPALETTE_SIZE and AVPALETTE_COUNT macros from
   libavcodec/avcodec.h to libavutil/pixfmt.h.

libavfilter/avfilter.c

@@ -407,7 +407,7 @@ static int pad_count(const AVFilterPad *pads)
     return count;
 }
 
-const char *avfilter_default_filter_name(void *filter_ctx)
+static char *default_filter_name(void *filter_ctx)
 {
     AVFilterContext *ctx = filter_ctx;
     return ctx->name ? ctx->name : ctx->filter->name;
@@ -415,7 +415,7 @@ const char *avfilter_default_filter_name(void *filter_ctx)
 
 static const AVClass avfilter_class = {
     .class_name = "AVFilter",
-    .item_name  = avfilter_default_filter_name,
+    .item_name  = default_filter_name,
     .version    = LIBAVUTIL_VERSION_INT,
     .category = AV_CLASS_CATEGORY_FILTER,
 };

libavfilter/avfilter.h

@@ -621,12 +621,6 @@ struct AVFilterContext {
     struct AVFilterCommand *command_queue;
 };
 
-/**
- * Print the name of the filter given a filter context.
- */
-const char *avfilter_default_filter_name(void *filter_ctx);
-
-
 #if FF_API_PACKING
 enum AVFilterPacking {
     AVFILTER_PACKED = 0,

libavfilter/version.h

@@ -30,7 +30,7 @@
 
 #define LIBAVFILTER_VERSION_MAJOR  2
 #define LIBAVFILTER_VERSION_MINOR 78
-#define LIBAVFILTER_VERSION_MICRO 100
+#define LIBAVFILTER_VERSION_MICRO 101
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
                                                LIBAVFILTER_VERSION_MINOR, \