diff --git a/doc/filters.texi b/doc/filters.texi
index a0a308758f..aa1389e407 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -14092,6 +14092,10 @@ copied from first stream.
 By default value 0xf, all planes will be processed.
 @end table
 
+@subsection Commands
+
+This filter supports the all above options as @ref{commands}.
+
 @section maskedmin
 
 Merge the second and third input stream into output stream using absolute differences
diff --git a/libavfilter/vf_maskedmerge.c b/libavfilter/vf_maskedmerge.c
index 82f55e66a7..2f83fb5dc1 100644
--- a/libavfilter/vf_maskedmerge.c
+++ b/libavfilter/vf_maskedmerge.c
@@ -28,7 +28,7 @@
 #include "maskedmerge.h"
 
 #define OFFSET(x) offsetof(MaskedMergeContext, x)
-#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
 
 static const AVOption maskedmerge_options[] = {
     { "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
@@ -46,7 +46,7 @@ static int query_formats(AVFilterContext *ctx)
         AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
         AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
         AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
-        AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
+        AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV440P10,
         AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
         AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
         AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
@@ -328,4 +328,5 @@ AVFilter ff_vf_maskedmerge = {
     .outputs       = maskedmerge_outputs,
     .priv_class    = &maskedmerge_class,
     .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
+    .process_command = ff_filter_process_command,
 };