From c408157a4def11d1e00d8d43565b04572c11c048 Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.a.alekhin@gmail.com>
Date: Thu, 23 Dec 2021 02:37:45 +0000
Subject: [PATCH] dnn: do not try to rebuilt network during setInput()

- this doesn't make sense in case of multiple inputs
---
 modules/dnn/src/dnn.cpp | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/modules/dnn/src/dnn.cpp b/modules/dnn/src/dnn.cpp
index b35dda9..65b8205 100644
--- a/modules/dnn/src/dnn.cpp
+++ b/modules/dnn/src/dnn.cpp
@@ -1339,6 +1339,11 @@ struct Net::Impl : public detail::NetImplBase
 #endif
             clear();
 
+            if (hasDynamicShapes)
+            {
+                updateLayersShapes();
+            }
+
             this->blobsToKeep = blobsToKeep_;
 
             allocateLayers(blobsToKeep_);
@@ -3886,13 +3891,8 @@ void Net::setInput(InputArray blob, const String& name, double scalefactor, cons
     bool oldShape = prevShape == blobShape;
 
     blob_.copyTo(impl->netInputLayer->inputsData[pin.oid]);
-    if (!oldShape) {
+    if (!oldShape)
         ld.outputBlobs[pin.oid] = impl->netInputLayer->inputsData[pin.oid];
-        if (impl->hasDynamicShapes)
-        {
-            impl->updateLayersShapes();
-        }
-    }
 
     if (!ld.outputBlobsWrappers[pin.oid].empty())
     {
-- 
2.7.4