Revert "avfilter: deprecate avfilter_link_get_channels()"

This reverts commit 798dcf2432.

It was applied by accident before it could be reviewed.

doc/APIchanges

@@ -15,10 +15,6 @@ libavutil:     2017-10-21
 
 API changes, most recent first:
 
-2018-01-xx - xxxxxxx - lavfi 7.11.101 - avfilter.h
-  Deprecate avfilter_link_get_channels(), and make AVFilterLink->channels
-  public.
-
 2017-xx-xx - xxxxxxx - lavr 4.0.0 - avresample.h
   Deprecate the entire library. Merged years ago to provide compatibility
   with Libav, it remained unmaintained by the FFmpeg project and duplicated

libavfilter/avfilter.c

@@ -183,12 +183,10 @@ void avfilter_link_free(AVFilterLink **link)
     av_freep(link);
 }
 
-#if FF_API_FILTER_GET_SET
 int avfilter_link_get_channels(AVFilterLink *link)
 {
     return link->channels;
 }
-#endif
 
 void ff_filter_set_ready(AVFilterContext *filter, unsigned priority)
 {

libavfilter/avfilter.h

@@ -448,11 +448,6 @@ struct AVFilterLink {
      */
     AVRational time_base;
 
-    /**
-     * Number of channels.
-     */
-    int channels;
-
     /*****************************************************************
      * All fields below this line are not part of the public API. They
      * may not be used outside of libavfilter and can be changed and
@@ -556,6 +551,11 @@ struct AVFilterLink {
      */
     int max_samples;
 
+    /**
+     * Number of channels.
+     */
+    int channels;
+
     /**
      * Link processing flags.
      */
@@ -647,15 +647,10 @@ int avfilter_link(AVFilterContext *src, unsigned srcpad,
  */
 void avfilter_link_free(AVFilterLink **link);
 
-#if FF_API_FILTER_GET_SET
 /**
  * Get the number of channels of a link.
- * @deprecated This accessor used to be provided for ABI compatibility, and
- * does not need to be used anymore.
  */
-attribute_deprecated
 int avfilter_link_get_channels(AVFilterLink *link);
-#endif
 
 /**
  * Set the closed field of a link.

libavfilter/version.h

@@ -31,7 +31,7 @@
 
 #define LIBAVFILTER_VERSION_MAJOR   7
 #define LIBAVFILTER_VERSION_MINOR  11
-#define LIBAVFILTER_VERSION_MICRO 101
+#define LIBAVFILTER_VERSION_MICRO 100
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
                                                LIBAVFILTER_VERSION_MINOR, \
@@ -55,8 +55,5 @@
 #ifndef FF_API_LAVR_OPTS
 #define FF_API_LAVR_OPTS                    (LIBAVFILTER_VERSION_MAJOR < 8)
 #endif
-#ifndef FF_API_FILTER_GET_SET
-#define FF_API_FILTER_GET_SET               (LIBAVFILTER_VERSION_MAJOR < 8)
-#endif
 
 #endif /* AVFILTER_VERSION_H */