Separate video streaming initialization.

src/VideoStreaming/VideoStreaming.cc

+    /*=====================================================================
+
+QGroundControl Open Source Ground Control Station
+
+(c) 2009, 2015 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
+
+This file is part of the QGROUNDCONTROL project
+
+    QGROUNDCONTROL is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    QGROUNDCONTROL is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with QGROUNDCONTROL. If not, see <http://www.gnu.org/licenses/>.
+
+======================================================================*/
+
+/**
+ * @file
+ *   @brief QGC Video Streaming Initialization
+ *   @author Gus Grubba <mavlink@grubba.com>
+ */
+
+#include <QtQml>
+#include <QDebug>
+
+#if defined(QGC_GST_STREAMING)
+#include <gst/gst.h>
+#endif
+
+#include "VideoStreaming.h"
+#include "VideoItem.h"
+#include "VideoSurface.h"
+
+#if defined(QGC_GST_STREAMING)
+    G_BEGIN_DECLS
+    // Our own plugin
+    GST_PLUGIN_STATIC_DECLARE(QTVIDEOSINK_NAME);
+    // The static plugins we use
+#if defined(__mobile__)
+    GST_PLUGIN_STATIC_DECLARE(coreelements);
+    GST_PLUGIN_STATIC_DECLARE(libav);
+    GST_PLUGIN_STATIC_DECLARE(rtp);
+    GST_PLUGIN_STATIC_DECLARE(udp);
+    GST_PLUGIN_STATIC_DECLARE(videoparsersbad);
+    GST_PLUGIN_STATIC_DECLARE(x264);
+#endif
+    G_END_DECLS
+#endif
+
+void initializeVideoStreaming(int &argc, char* argv[])
+{
+#if defined(QGC_GST_STREAMING)
+    // Initialize GStreamer
+    GError* error = NULL;
+    if (!gst_init_check(&argc, &argv, &error)) {
+        qCritical() << "gst_init_check() failed: " << error->message;
+        g_error_free(error);
+    }
+    // Our own plugin
+    GST_PLUGIN_STATIC_REGISTER(QTVIDEOSINK_NAME);
+    // The static plugins we use
+#if defined(__mobile__)
+    GST_PLUGIN_STATIC_REGISTER(coreelements);
+    GST_PLUGIN_STATIC_REGISTER(libav);
+    GST_PLUGIN_STATIC_REGISTER(rtp);
+    GST_PLUGIN_STATIC_REGISTER(udp);
+    GST_PLUGIN_STATIC_REGISTER(videoparsersbad);
+    GST_PLUGIN_STATIC_REGISTER(x264);
+#endif
+
+#ifdef Q_OS_MAC
+#ifndef __ios__
+#ifdef QGC_INSTALL_RELEASE
+    QString currentDir = QCoreApplication::applicationDirPath();
+    qgcputenv("GST_PLUGIN_SCANNER",           currentDir, "/gst-plugin-scanner");
+    qgcputenv("GTK_PATH",                     currentDir, "/../Frameworks/GStreamer.framework/Versions/Current");
+    qgcputenv("GIO_EXTRA_MODULES",            currentDir, "/../Frameworks/GStreamer.framework/Versions/Current/lib/gio/modules");
+    qgcputenv("GST_PLUGIN_SYSTEM_PATH_1_0",   currentDir, "/../Frameworks/GStreamer.framework/Versions/Current/lib/gstreamer-1.0");
+    qgcputenv("GST_PLUGIN_SYSTEM_PATH",       currentDir, "/../Frameworks/GStreamer.framework/Versions/Current/lib/gstreamer-1.0");
+    qgcputenv("GST_PLUGIN_PATH_1_0",          currentDir, "/../Frameworks/GStreamer.framework/Versions/Current/lib/gstreamer-1.0");
+    qgcputenv("GST_PLUGIN_PATH",              currentDir, "/../Frameworks/GStreamer.framework/Versions/Current/lib/gstreamer-1.0");
+//    QStringList env = QProcessEnvironment::systemEnvironment().keys();
+//    foreach(QString key, env) {
+//        qDebug() << key << QProcessEnvironment::systemEnvironment().value(key);
+//    }
+#endif
+#endif
+#endif
+
+    qmlRegisterType<VideoItem>              ("QGroundControl.QgcQtGStreamer", 1, 0, "VideoItem");
+    qmlRegisterUncreatableType<VideoSurface>("QGroundControl.QgcQtGStreamer", 1, 0, "VideoSurface", QLatin1String("VideoSurface from QML is not supported"));
+
+#endif
+}
+
+void shutdownVideoStreaming()
+{
+#if defined(QGC_GST_STREAMING)
+    gst_deinit();
+#endif
+}

src/VideoStreaming/VideoStreaming.h

+/*=====================================================================
+
+QGroundControl Open Source Ground Control Station
+
+(c) 2009, 2015 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
+
+This file is part of the QGROUNDCONTROL project
+
+    QGROUNDCONTROL is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    QGROUNDCONTROL is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with QGROUNDCONTROL. If not, see <http://www.gnu.org/licenses/>.
+
+======================================================================*/
+
+/**
+ * @file
+ *   @brief QGC Video Streaming Initialization
+ *   @author Gus Grubba <mavlink@grubba.com>
+ */
+
+#ifndef VIDEO_STREAMING_H
+#define VIDEO_STREAMING_H
+
+extern void initializeVideoStreaming    (int &argc, char *argv[]);
+extern void shutdownVideoStreaming      ();
+
+#endif // VIDEO_STREAMING_H