From eb0f532c980747aea73b511f0c6c7ad9b9ea74b3 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Sun, 17 Jan 2021 12:22:28 +0100
Subject: [PATCH] avfilter/vf_bbox: add support for commands

---
 doc/filters.texi      | 4 ++++
 libavfilter/vf_bbox.c | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/doc/filters.texi b/doc/filters.texi
index fc2e250566..e4096a227a 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -7144,6 +7144,10 @@ The filter accepts the following option:
 Set the minimal luminance value. Default is @code{16}.
 @end table
 
+@subsection Commands
+
+This filter supports the all above options as @ref{commands}.
+
 @section bilateral
 Apply bilateral filter, spatial smoothing while preserving edges.
 
diff --git a/libavfilter/vf_bbox.c b/libavfilter/vf_bbox.c
index 5f429fe4cd..acbb4ea16d 100644
--- a/libavfilter/vf_bbox.c
+++ b/libavfilter/vf_bbox.c
@@ -37,7 +37,7 @@ typedef struct BBoxContext {
 } BBoxContext;
 
 #define OFFSET(x) offsetof(BBoxContext, x)
-#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
 
 static const AVOption bbox_options[] = {
     { "min_val", "set minimum luminance value for bounding box", OFFSET(min_val), AV_OPT_TYPE_INT, { .i64 = 16 }, 0, UINT16_MAX, FLAGS },
@@ -162,4 +162,5 @@ AVFilter ff_vf_bbox = {
     .inputs        = bbox_inputs,
     .outputs       = bbox_outputs,
     .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
+    .process_command = ff_filter_process_command,
 };