avfilter/af_alimiter: Store format in filter, remove query function

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavfilter/af_alimiter.c

@@ -276,23 +276,6 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
     return ff_filter_frame(outlink, out);
 }
 
-static int query_formats(AVFilterContext *ctx)
-{
-    static const enum AVSampleFormat sample_fmts[] = {
-        AV_SAMPLE_FMT_DBL,
-        AV_SAMPLE_FMT_NONE
-    };
-    int ret = ff_set_common_all_channel_counts(ctx);
-    if (ret < 0)
-        return ret;
-
-    ret = ff_set_common_formats_from_list(ctx, sample_fmts);
-    if (ret < 0)
-        return ret;
-
-    return ff_set_common_all_samplerates(ctx);
-}
-
 static int config_input(AVFilterLink *inlink)
 {
     AVFilterContext *ctx = inlink->dst;
@@ -355,5 +338,5 @@ const AVFilter ff_af_alimiter = {
     .uninit         = uninit,
     FILTER_INPUTS(alimiter_inputs),
     FILTER_OUTPUTS(alimiter_outputs),
-    FILTER_QUERY_FUNC(query_formats),
+    FILTER_SINGLE_SAMPLEFMT(AV_SAMPLE_FMT_DBL),
 };