lavfi/ebur128: switch to an AVOptions-based system.

doc/filters.texi

@@ -6845,7 +6845,7 @@ the momentary loudness (400 milliseconds).
 More information about the Loudness Recommendation EBU R128 on
 @url{http://tech.ebu.ch/loudness}.
 
-The filter accepts the following named parameters:
+The filter accepts the following options:
 
 @table @option
 

libavfilter/avfilter.c

@@ -664,6 +664,7 @@ int avfilter_init_filter(AVFilterContext *filter, const char *args, void *opaque
         !strcmp(filter->filter->name,  "delogo"    ) ||
         !strcmp(filter->filter->name,  "drawbox"   ) ||
         !strcmp(filter->filter->name,  "drawtext"  ) ||
+        !strcmp(filter->filter->name,  "ebur128"   ) ||
         !strcmp(filter->filter->name,  "fade"      ) ||
         !strcmp(filter->filter->name,  "fieldorder") ||
         !strcmp(filter->filter->name,  "fps"       ) ||

libavfilter/f_ebur128.c

@@ -405,16 +405,9 @@ static struct hist_entry *get_histogram(void)
 
 static av_cold int init(AVFilterContext *ctx, const char *args)
 {
-    int ret;
     EBUR128Context *ebur128 = ctx->priv;
     AVFilterPad pad;
 
-    ebur128->class = &ebur128_class;
-    av_opt_set_defaults(ebur128);
-
-    if ((ret = av_set_options_string(ebur128, args, "=", ":")) < 0)
-        return ret;
-
     if (ebur128->loglevel != AV_LOG_INFO &&
         ebur128->loglevel != AV_LOG_VERBOSE) {
         if (ebur128->do_video || ebur128->metadata)