avfilter/af_loudnorm: simplify query_formats even more

1 files changed, 9 insertions, 11 deletions

diff --git a/libavfilter/af_loudnorm.c b/libavfilter/af_loudnorm.c
index 609eae797c..c99d2f11e6 100644
--- a/libavfilter/af_loudnorm.c
+++ b/libavfilter/af_loudnorm.c
@@ -730,26 +730,24 @@ static int activate(AVFilterContext *ctx)
 static int query_formats(AVFilterContext *ctx)
 {
     LoudNormContext *s = ctx->priv;
-    AVFilterFormats *formats = NULL;
     static const int input_srate[] = {192000, -1};
+    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_add_format(&formats, AV_SAMPLE_FMT_DBL);
-    if (ret)
-        return ret;
-    ret = ff_set_common_formats(ctx, formats);
-    if (ret)
+    ret = ff_set_common_formats_from_list(ctx, sample_fmts);
+    if (ret < 0)
         return ret;
 
-    if (s->frame_type != LINEAR_MODE) {
-        formats = ff_make_format_list(input_srate);
+    if (s->frame_type == LINEAR_MODE) {
+        return ff_set_common_all_samplerates(ctx);
     } else {
-        formats = ff_all_samplerates();
+        return ff_set_common_samplerates_from_list(ctx, input_srate);
     }
-
-    return ff_set_common_samplerates(ctx, formats);
 }
 
 static int config_input(AVFilterLink *inlink)