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

doc/filters.texi

@@ -902,8 +902,7 @@ The last output packet may contain a different number of samples, as
 the filter will flush all the remaining samples when the input audio
 signal its end.
 
-The filter accepts parameters as a list of @var{key}=@var{value} pairs,
-separated by ":".
+The filter accepts the following options:
 
 @table @option
 

libavfilter/af_asetnsamples.c

@@ -45,11 +45,11 @@ typedef struct {
 #define FLAGS AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
 
 static const AVOption asetnsamples_options[] = {
-{ "pad", "pad last frame with zeros", OFFSET(pad), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS },
-{ "p",   "pad last frame with zeros", OFFSET(pad), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS },
-{ "nb_out_samples", "set the number of per-frame output samples", OFFSET(nb_out_samples), AV_OPT_TYPE_INT, {.i64=1024}, 1, INT_MAX, FLAGS },
-{ "n",              "set the number of per-frame output samples", OFFSET(nb_out_samples), AV_OPT_TYPE_INT, {.i64=1024}, 1, INT_MAX, FLAGS },
-{ NULL }
+    { "nb_out_samples", "set the number of per-frame output samples", OFFSET(nb_out_samples), AV_OPT_TYPE_INT, {.i64=1024}, 1, INT_MAX, FLAGS },
+    { "n",              "set the number of per-frame output samples", OFFSET(nb_out_samples), AV_OPT_TYPE_INT, {.i64=1024}, 1, INT_MAX, FLAGS },
+    { "pad", "pad last frame with zeros", OFFSET(pad), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS },
+    { "p",   "pad last frame with zeros", OFFSET(pad), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS },
+    { NULL }
 };
 
 AVFILTER_DEFINE_CLASS(asetnsamples);
@@ -57,13 +57,6 @@ AVFILTER_DEFINE_CLASS(asetnsamples);
 static av_cold int init(AVFilterContext *ctx, const char *args)
 {
     ASNSContext *asns = ctx->priv;
-    int err;
-
-    asns->class = &asetnsamples_class;
-    av_opt_set_defaults(asns);
-
-    if ((err = av_set_options_string(asns, args, "=", ":")) < 0)
-        return err;
 
     asns->next_out_pts = AV_NOPTS_VALUE;
     av_log(ctx, AV_LOG_VERBOSE, "nb_out_samples:%d pad:%d\n", asns->nb_out_samples, asns->pad);

libavfilter/avfilter.c

@@ -677,7 +677,6 @@ static const char *const filters_left_to_update[] = {
     "aevalsrc",
     "amerge",
     "aresample",
-    "asetnsamples",
     "atempo",
     "buffer",
     "flite",