From 715f23127cb231d7ec7417b18fad2d77b493139e Mon Sep 17 00:00:00 2001
From: zarelaky <zarelaky@hotmail.com>
Date: Mon, 6 Aug 2018 22:11:23 +0800
Subject: [PATCH] Update cap_gstreamer.cpp

fixed call open(int id) failed
---
 modules/videoio/src/cap_gstreamer.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/modules/videoio/src/cap_gstreamer.cpp b/modules/videoio/src/cap_gstreamer.cpp
index 8758b21dd9..2c9570e67f 100644
--- a/modules/videoio/src/cap_gstreamer.cpp
+++ b/modules/videoio/src/cap_gstreamer.cpp
@@ -613,10 +613,12 @@ int GStreamerCapture::getCaptureDomain() { return CAP_GSTREAMER; }
  */
 bool GStreamerCapture::open(int id)
 {
+    gst_initializer::init();
+
     if (!is_gst_element_exists("v4l2src"))
         return false;
     std::ostringstream desc;
-    desc << "v4l2src device-name=/dev/video" << id
+    desc << "v4l2src device=/dev/video" << id
              << " ! " << COLOR_ELEM
              << " ! appsink";
     return open(desc.str());