Add button in general settings to select location to save video files

src/FlightDisplay/VideoManager.cc

@@ -27,6 +27,7 @@
 static const char* kVideoSourceKey  = "VideoSource";
 static const char* kVideoUDPPortKey = "VideoUDPPort";
 static const char* kVideoRTSPUrlKey = "VideoRTSPUrl";
+static const char* kVideoSavePathKey = "VideoSaveDir";
 #if defined(QGC_GST_STREAMING)
 static const char* kUDPStream       = "UDP Video Stream";
 static const char* kRTSPStream      = "RTSP Video Stream";
@@ -80,6 +81,7 @@ VideoManager::setToolbox(QGCToolbox *toolbox)
        setUdpPort(settings.value(kVideoUDPPortKey, 5600).toUInt());
        setRtspURL(settings.value(kVideoRTSPUrlKey, "rtsp://192.168.42.1:554/live").toString()); //-- Example RTSP URL
    }
+   setVideoSavePath(settings.value(kVideoSavePathKey, QDir::homePath()).toString());
 #endif
    _init = true;
 #if defined(QGC_GST_STREAMING)
@@ -186,6 +188,17 @@ VideoManager::setRtspURL(QString url)
     */
 }
 
+void
+VideoManager::setVideoSavePath(QString path)
+{
+    _videoSavePath = path;
+    QSettings settings;
+    settings.setValue(kVideoSavePathKey, path);
+    if(_videoReceiver)
+        _videoReceiver->setVideoSavePath(_videoSavePath);
+    emit videoSavePathChanged();
+}
+
 //-----------------------------------------------------------------------------
 QStringList
 VideoManager::videoSourceList()
@@ -265,6 +278,7 @@ void VideoManager::_updateVideo()
             _videoReceiver->setUri(QStringLiteral("udp://0.0.0.0:%1").arg(_udpPort));
         else
             _videoReceiver->setUri(_rtspURL);
+        _videoReceiver->setVideoSavePath(_videoSavePath);
         #endif
         _videoReceiver->start();
     }

src/FlightDisplay/VideoManager.h

@@ -37,6 +37,7 @@ public:
     Q_PROPERTY(bool             videoRunning    READ    videoRunning                            NOTIFY videoRunningChanged)
     Q_PROPERTY(quint16          udpPort         READ    udpPort         WRITE setUdpPort        NOTIFY udpPortChanged)
     Q_PROPERTY(QString          rtspURL         READ    rtspURL         WRITE setRtspURL        NOTIFY rtspURLChanged)
+    Q_PROPERTY(QString          videoSavePath   READ    videoSavePath   WRITE setVideoSavePath  NOTIFY videoSavePathChanged)
     Q_PROPERTY(bool             uvcEnabled      READ    uvcEnabled                              CONSTANT)
     Q_PROPERTY(VideoSurface*    videoSurface    MEMBER  _videoSurface                           CONSTANT)
     Q_PROPERTY(VideoReceiver*   videoReceiver   MEMBER  _videoReceiver                          CONSTANT)
@@ -49,6 +50,7 @@ public:
     QStringList videoSourceList     ();
     quint16     udpPort             () { return _udpPort; }
     QString     rtspURL             () { return _rtspURL; }
+    QString     videoSavePath       () { return _videoSavePath; }
 
 #if defined(QGC_DISABLE_UVC)
     bool        uvcEnabled          () { return false; }
@@ -59,6 +61,7 @@ public:
     void        setVideoSource      (QString vSource);
     void        setUdpPort          (quint16 port);
     void        setRtspURL          (QString url);
+    void        setVideoSavePath    (QString path);
 
     // Override from QGCTool
     void        setToolbox          (QGCToolbox *toolbox);
@@ -72,6 +75,7 @@ signals:
     void videoSourceIDChanged   ();
     void udpPortChanged         ();
     void rtspURLChanged         ();
+    void videoSavePathChanged   ();
 
 private:
     void _updateTimer           ();
@@ -89,6 +93,7 @@ private:
     QStringList         _videoSourceList;
     quint16             _udpPort;
     QString             _rtspURL;
+    QString             _videoSavePath;
     bool                _init;
 };
 

src/VideoStreaming/VideoReceiver.cc

@@ -19,6 +19,7 @@
 #include <QUrl>
 #include <QDir>
 #include <QDateTime>
+#include <QSysInfo>
 
 VideoReceiver::Sink* VideoReceiver::_sink = NULL;
 GstElement*          VideoReceiver::_pipeline = NULL;
@@ -127,8 +128,14 @@ void VideoReceiver::startRecording(void)
     _sink->filesink = gst_element_factory_make("filesink", NULL);
     _sink->removing = false;
 
-    QString filename = QDir::homePath() + "/" + QDateTime::currentDateTime().toString() + ".mkv";
-    g_object_set(G_OBJECT(_sink->filesink), "location", qPrintable(filename), NULL);
+    QString fileName;
+    if(QSysInfo::WindowsVersion != QSysInfo::WV_None) {
+        fileName = _path + "\\QGC-" + QDateTime::currentDateTime().toString("yyyy-MM-dd-hh:mm:ss") + ".mkv";
+    } else {
+        fileName = _path + "/QGC-" + QDateTime::currentDateTime().toString("yyyy-MM-dd-hh:mm:ss") + ".mkv";
+    }
+    g_object_set(G_OBJECT(_sink->filesink), "location", qPrintable(fileName), NULL);
+    qDebug() << "New video file:" << fileName;
 
     gst_object_ref(_sink->queue);
     gst_object_ref(_sink->mux);
@@ -482,6 +489,12 @@ void VideoReceiver::setUri(const QString & uri)
     _uri = uri;
 }
 
+void VideoReceiver::setVideoSavePath(const QString & path)
+{
+    _path = path;
+    qDebug() << "New Path:" << _path;
+}
+
 #if defined(QGC_GST_STREAMING)
 void VideoReceiver::_onBusMessage(GstMessage* msg)
 {

src/VideoStreaming/VideoReceiver.h

@@ -47,11 +47,12 @@ signals:
     void streamingChanged();
 
 public slots:
-    void start          ();
-    void stop           ();
-    void setUri         (const QString& uri);
-    void stopRecording  ();
-    void startRecording ();
+    void start              ();
+    void stop               ();
+    void setUri             (const QString& uri);
+    void setVideoSavePath   (const QString& path);
+    void stopRecording      ();
+    void startRecording     ();
 
 private slots:
 #if defined(QGC_GST_STREAMING)
@@ -85,6 +86,7 @@ private:
 #endif
 
     QString     _uri;
+    QString     _path;
 
 #if defined(QGC_GST_STREAMING)
     static GstElement*   _pipeline;

src/ui/preferences/GeneralSettings.qml

@@ -41,6 +41,18 @@ QGCView {
 
     QGCPalette { id: qgcPal }
 
+    FileDialog {
+        id: fileDialog
+        title: "Choose a location to save video files."
+        folder: shortcuts.home
+        selectFolder: true
+        onAccepted: {
+            var path = fileDialog.fileUrl.toString();
+            path = path.replace(/^(file:\/{2})/,"");
+            QGroundControl.videoManager.videoSavePath = path
+        }
+    }
+
     QGCViewPanel {
         id:             panel
         anchors.fill:   parent
@@ -499,6 +511,25 @@ QGCView {
                                 }
                             }
                         }
+                        Row {
+                            spacing:    ScreenTools.defaultFontPixelWidth
+                            visible:    QGroundControl.videoManager.isGStreamer
+                            QGCLabel {
+                                anchors.baseline:   pathField.baseline
+                                text:               qsTr("Save Path:")
+                                width:              _labelWidth
+                            }
+                            QGCTextField {
+                                id:                 pathField
+                                width:              _editFieldWidth
+                                readOnly:           true
+                                text:               QGroundControl.videoManager.videoSavePath
+                            }
+                            Button {
+                                text: "Browse"
+                                onClicked: fileDialog.visible = true
+                            }
+                        }
                     }
                 }