From 56ca78b0958a057a4df92d6e597307ddd9e2e4ce Mon Sep 17 00:00:00 2001
From: dzhoshkun <dzhoshkun.shakir@gmail.com>
Date: Tue, 30 Apr 2019 17:33:29 +0100
Subject: [PATCH] Issue #104, #46: constraining use of bottom-up flag to Linux

---
 src/epiphansdk/epiphansdk_video_source.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/epiphansdk/epiphansdk_video_source.cpp b/src/epiphansdk/epiphansdk_video_source.cpp
index aa40bf94..599dbf78 100644
--- a/src/epiphansdk/epiphansdk_video_source.cpp
+++ b/src/epiphansdk/epiphansdk_video_source.cpp
@@ -34,7 +34,10 @@ VideoSourceEpiphanSDK::VideoSourceEpiphanSDK(
     else
     {
         _colour = BGRA;
-        _flags |= V2U_GRABFRAME_BOTTOM_UP_FLAG; // for some reason without this the image is flipped
+#ifdef __linux__
+        // for some reason on Linux systems, the image is flipped without this
+        _flags |= V2U_GRABFRAME_BOTTOM_UP_FLAG;
+#endif
     }
     _flags |= colour_space;