elements/gstqtvideosink/gstqtvideosinkplugin.cpp add error handling to plugin registration.

The GStreamer plugin examples returned FALSE when their plugins failed
initalization. We should as well.

1 files changed, 20 insertions, 8 deletions

diff --git a/elements/gstqtvideosink/gstqtvideosinkplugin.cpp b/elements/gstqtvideosink/gstqtvideosinkplugin.cpp
index 6b2e3e5..b960e43 100644
--- a/elements/gstqtvideosink/gstqtvideosinkplugin.cpp
+++ b/elements/gstqtvideosink/gstqtvideosinkplugin.cpp
@@ -32,18 +32,30 @@ static gboolean plugin_init(GstPlugin *plugin)
     GST_DEBUG_CATEGORY_INIT(gst_qt_video_sink_debug, QTVIDEOSINK_NAME, 0,
                             "Debug category for GstQtVideoSink");
 
-    gst_element_register(plugin, QTVIDEOSINK_NAME,
-            GST_RANK_NONE, GST_TYPE_QT_VIDEO_SINK);
+    if(!gst_element_register(plugin, QTVIDEOSINK_NAME,
+                GST_RANK_NONE, GST_TYPE_QT_VIDEO_SINK)) {
+        GST_ERROR("Failed to register " QTVIDEOSINK_NAME);
+        return FALSE;
+    }
 #ifndef GST_QT_VIDEO_SINK_NO_OPENGL
-    gst_element_register(plugin, QTGLVIDEOSINK_NAME,
-            GST_RANK_NONE, GST_TYPE_QT_GL_VIDEO_SINK);
+    if(!gst_element_register(plugin, QTGLVIDEOSINK_NAME,
+                GST_RANK_NONE, GST_TYPE_QT_GL_VIDEO_SINK)) {
+        GST_ERROR("Failed to register " QTGLVIDEOSINK_NAME);
+        return FALSE;
+    }
 #endif
-    gst_element_register(plugin, QWIDGETVIDEOSINK_NAME,
-            GST_RANK_NONE, GST_TYPE_QWIDGET_VIDEO_SINK);
+    if(!gst_element_register(plugin, QWIDGETVIDEOSINK_NAME,
+                GST_RANK_NONE, GST_TYPE_QWIDGET_VIDEO_SINK)) {
+        GST_ERROR("Failed to register " QWIDGETVIDEOSINK_NAME);
+        return FALSE;
+    }
 
 #if QT_VERSION >= QT_VERSION_CHECK(5,0,0)
-    gst_element_register(plugin, "qtquick2videosink",
-            GST_RANK_NONE, GST_TYPE_QT_QUICK2_VIDEO_SINK);
+    if (!gst_element_register(plugin, "qtquick2videosink",
+                GST_RANK_NONE, GST_TYPE_QT_QUICK2_VIDEO_SINK)) {
+        GST_ERROR("Failed to register qtquick2videosink");
+        return FALSE;
+    }
 #endif
 
     return TRUE;