lavfi: deprecate AVFilterGraph->resample_lavr_opts

Not used by anything at all since we don't auto insert lavr filters.
Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

doc/APIchanges

@@ -15,6 +15,10 @@ libavutil:     2015-08-28
 
 API changes, most recent first:
 
+2017-03-18 - xxxxxxx - lavfi 6.77.100 - avfilter.h
+  Deprecate AVFilterGraph.resample_lavr_opts
+  It's never been used by avfilter nor passed to anything.
+
 2017-02-10 - xxxxxxx - lavu 55.48.100 / 55.33.0 - spherical.h
   Add AV_SPHERICAL_EQUIRECTANGULAR_TILE, av_spherical_tile_bounds(),
   and projection-specific properties (bound_left, bound_top, bound_right,

libavfilter/avfilter.h

@@ -841,7 +841,9 @@ typedef struct AVFilterGraph {
     unsigned nb_filters;
 
     char *scale_sws_opts; ///< sws options to use for the auto-inserted scale filters
-    char *resample_lavr_opts;   ///< libavresample options to use for the auto-inserted resample filters
+#if FF_API_LAVR_OPTS
+    attribute_deprecated char *resample_lavr_opts;   ///< libavresample options to use for the auto-inserted resample filters
+#endif
 
     /**
      * Type of multithreading allowed for filters in this graph. A combination

libavfilter/avfiltergraph.c

@@ -128,7 +128,9 @@ void avfilter_graph_free(AVFilterGraph **graph)
 
     av_freep(&(*graph)->scale_sws_opts);
     av_freep(&(*graph)->aresample_swr_opts);
+#if FF_API_LAVR_OPTS
     av_freep(&(*graph)->resample_lavr_opts);
+#endif
     av_freep(&(*graph)->filters);
     av_freep(&(*graph)->internal);
     av_freep(graph);

libavfilter/version.h

@@ -30,7 +30,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVFILTER_VERSION_MAJOR   6
-#define LIBAVFILTER_VERSION_MINOR  76
+#define LIBAVFILTER_VERSION_MINOR  77
 #define LIBAVFILTER_VERSION_MICRO 100
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
@@ -67,5 +67,8 @@
 #ifndef FF_API_NOCONST_GET_NAME
 #define FF_API_NOCONST_GET_NAME             (LIBAVFILTER_VERSION_MAJOR < 7)
 #endif
+#ifndef FF_API_LAVR_OPTS
+#define FF_API_LAVR_OPTS                    (LIBAVFILTER_VERSION_MAJOR < 7)
+#endif
 
 #endif /* AVFILTER_VERSION_H */