From c2c539e3cc650214404e86183c296d8ff9d95ecd Mon Sep 17 00:00:00 2001
From: Biswapriyo Nath <nathbappai@gmail.com>
Date: Sun, 14 Aug 2022 19:26:08 +0530
Subject: [PATCH] videoio: Include missing condition_variable header

This fixes the following error with mingw toolchain:
opencv/modules/videoio/src/cap_obsensor/obsensor_stream_channel_msmf.hpp:160:10: error: 'condition_variable' in namespace 'std' does not name a type
  160 |     std::condition_variable streamStateCv_;
      |          ^~~~~~~~~~~~~~~~~~
---
 .../videoio/src/cap_obsensor/obsensor_stream_channel_msmf.hpp   | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/videoio/src/cap_obsensor/obsensor_stream_channel_msmf.hpp b/modules/videoio/src/cap_obsensor/obsensor_stream_channel_msmf.hpp
index aa40fe53be..2891ff488a 100644
--- a/modules/videoio/src/cap_obsensor/obsensor_stream_channel_msmf.hpp
+++ b/modules/videoio/src/cap_obsensor/obsensor_stream_channel_msmf.hpp
@@ -25,6 +25,8 @@
 
 #include "obsensor_uvc_stream_channel.hpp"
 
+#include <condition_variable>
+
 #include <windows.h>
 #include <guiddef.h>
 #include <mfapi.h>