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

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

libavfilter/af_asubboost.c

@@ -44,23 +44,6 @@ typedef struct ASubBoostContext {
     AVFrame *buffer;
 } ASubBoostContext;
 
-static int query_formats(AVFilterContext *ctx)
-{
-    static const enum AVSampleFormat sample_fmts[] = {
-        AV_SAMPLE_FMT_DBLP,
-        AV_SAMPLE_FMT_NONE
-    };
-    int ret = ff_set_common_formats_from_list(ctx, sample_fmts);
-    if (ret < 0)
-        return ret;
-
-    ret = ff_set_common_all_channel_counts(ctx);
-    if (ret < 0)
-        return ret;
-
-    return ff_set_common_all_samplerates(ctx);
-}
-
 static int get_coeffs(AVFilterContext *ctx)
 {
     ASubBoostContext *s = ctx->priv;
@@ -238,7 +221,7 @@ const AVFilter ff_af_asubboost = {
     .uninit         = uninit,
     FILTER_INPUTS(inputs),
     FILTER_OUTPUTS(outputs),
-    FILTER_QUERY_FUNC(query_formats),
+    FILTER_SINGLE_SAMPLEFMT(AV_SAMPLE_FMT_DBLP),
     .process_command = process_command,
     .flags           = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
                        AVFILTER_FLAG_SLICE_THREADS,