lavfi/sendcmd: add FLAGS to AVOption array.

libavfilter/f_sendcmd.c

@@ -80,12 +80,12 @@ typedef struct {
 } SendCmdContext;
 
 #define OFFSET(x) offsetof(SendCmdContext, x)
-
-static const AVOption sendcmd_options[]= {
-    { "commands", "set commands", OFFSET(commands_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0 },
-    { "c",        "set commands", OFFSET(commands_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0 },
-    { "filename", "set commands file",  OFFSET(commands_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0 },
-    { "f",        "set commands file",  OFFSET(commands_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0 },
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM
+static const AVOption options[] = {
+    { "commands", "set commands", OFFSET(commands_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
+    { "c",        "set commands", OFFSET(commands_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
+    { "filename", "set commands file",  OFFSET(commands_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
+    { "f",        "set commands file",  OFFSET(commands_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
     {NULL},
 };