From 68af3e37ccecec74d45848bddc11e31f5ae32d02 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Wed, 17 Jan 2024 12:52:29 +0100
Subject: [PATCH] fftools/cmdutils: indicate specifiers in option syntax in
 help output

---
 fftools/cmdutils.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fftools/cmdutils.c b/fftools/cmdutils.c
index be01372743..f652820184 100644
--- a/fftools/cmdutils.c
+++ b/fftools/cmdutils.c
@@ -126,6 +126,12 @@ void show_help_options(const OptionDef *options, const char *msg, int req_flags,
             first = 0;
         }
         av_strlcpy(buf, po->name, sizeof(buf));
+
+        if (po->flags & OPT_FLAG_PERSTREAM)
+            av_strlcat(buf, "[:<stream_spec>]", sizeof(buf));
+        else if (po->flags & OPT_FLAG_SPEC)
+            av_strlcat(buf, "[:<spec>]", sizeof(buf));
+
         if (po->argname) {
             av_strlcat(buf, " ", sizeof(buf));
             av_strlcat(buf, po->argname, sizeof(buf));