From 2143f7cee111514dab24fab3dd79a9f320678054 Mon Sep 17 00:00:00 2001
From: Josh Veitch-Michaelis <j.veitchmichaelis@gmail.com>
Date: Tue, 12 Mar 2019 05:26:51 +0000
Subject: [PATCH] release frame after disabling convert rgb

---
 modules/videoio/src/cap_v4l.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/modules/videoio/src/cap_v4l.cpp b/modules/videoio/src/cap_v4l.cpp
index 822f37344f..c79d9044a9 100644
--- a/modules/videoio/src/cap_v4l.cpp
+++ b/modules/videoio/src/cap_v4l.cpp
@@ -1803,9 +1803,11 @@ bool CvCaptureCAM_V4L::setProperty( int property_id, double _value )
         if (bool(value)) {
             convert_rgb = convertableToRgb();
             return convert_rgb;
+        }else{
+            convert_rgb = false;
+            releaseFrame();
+            return true;
         }
-        convert_rgb = false;
-        return true;
     case cv::CAP_PROP_FOURCC:
     {
         if (palette == static_cast<__u32>(value))