ATV Modulator: open video file

plugins/channeltx/modatv/atvmod.cpp

@@ -23,6 +23,7 @@
 
 MESSAGE_CLASS_DEFINITION(ATVMod::MsgConfigureATVMod, Message)
 MESSAGE_CLASS_DEFINITION(ATVMod::MsgConfigureImageFileName, Message)
+MESSAGE_CLASS_DEFINITION(ATVMod::MsgConfigureVideoFileName, Message)
 
 const float ATVMod::m_blackLevel = 0.3f;
 const float ATVMod::m_spanLevel = 0.7f;
@@ -251,8 +252,12 @@ bool ATVMod::handleMessage(const Message& cmd)
     {
         MsgConfigureImageFileName& conf = (MsgConfigureImageFileName&) cmd;
         openImage(conf.getFileName());
-//        m_fileName = conf.getFileName(); // TODO
-//        openFileStream();
+        return true;
+    }
+    else if (MsgConfigureVideoFileName::match(cmd))
+    {
+        MsgConfigureVideoFileName& conf = (MsgConfigureVideoFileName&) cmd;
+        openVideo(conf.getFileName());
         return true;
     }
     else
@@ -343,6 +348,7 @@ void ATVMod::applyStandard()
         m_linesPerVBar     = m_nbImageLines2  / m_nbBars;
         m_hBarIncrement    = m_spanLevel / (float) m_nbBars;
         m_vBarIncrement    = m_spanLevel / (float) m_nbBars;
+        m_fps              = 30.0f;
         break;
     case ATVStdPAL625: // Follows PAL-B/G/H standard
     default:
@@ -364,6 +370,7 @@ void ATVMod::applyStandard()
         m_linesPerVBar     = m_nbImageLines2 / m_nbBars;
         m_hBarIncrement    = m_spanLevel / (float) m_nbBars;
         m_vBarIncrement    = m_spanLevel / (float) m_nbBars;
+        m_fps              = 25.0f;
     }
 
     if (m_imageOK)
@@ -383,6 +390,19 @@ void ATVMod::openImage(const QString& fileName)
 	}
 }
 
+void ATVMod::openVideo(const QString& fileName)
+{
+    m_videoOK = m_video.open(qPrintable(fileName));
+
+    if (m_videoOK)
+    {
+        m_videoFPS = m_video.get(CV_CAP_PROP_FPS);
+        m_videoWidth = (int) m_video.get(CV_CAP_PROP_FRAME_WIDTH);
+        m_videoHeight = (int) m_video.get(CV_CAP_PROP_FRAME_HEIGHT);
+        qDebug("ATVMod::openVideo(: FPS: %f size: %d x %d", m_videoFPS, m_videoWidth, m_videoHeight);
+    }
+}
+
 void ATVMod::resizeImage()
 {
     float fy = (m_nbImageLines - 2*m_nbBlankLines) / (float) m_imageOriginal.rows;

plugins/channeltx/modatv/atvmod.h

@@ -80,6 +80,27 @@ public:
         { }
     };
 
+    class MsgConfigureVideoFileName : public Message
+    {
+        MESSAGE_CLASS_DECLARATION
+
+    public:
+        const QString& getFileName() const { return m_fileName; }
+
+        static MsgConfigureVideoFileName* create(const QString& fileName)
+        {
+            return new MsgConfigureVideoFileName(fileName);
+        }
+
+    private:
+        QString m_fileName;
+
+        MsgConfigureVideoFileName(const QString& fileName) :
+            Message(),
+            m_fileName(fileName)
+        { }
+    };
+
     ATVMod();
     ~ATVMod();
 
@@ -207,6 +228,7 @@ private:
     QMutex   m_settingsMutex;
     int      m_horizontalCount;  //!< current point index on line
     int      m_lineCount;        //!< current line index in frame
+    float    m_fps;              //!< resulting frames per second
 
     MovingAverage<Real> m_movingAverage;
     quint32 m_levelCalcCount;
@@ -217,6 +239,13 @@ private:
     cv::Mat m_image;             //!< resized image for transmission at given rate
     bool m_imageOK;
 
+    cv::VideoCapture m_video;    //!< current video capture
+    cv::Mat m_frame;             //!< current frame
+    float m_videoFPS;
+    int m_videoWidth;
+    int m_videoHeight;
+    bool m_videoOK;
+
     static const float m_blackLevel;
     static const float m_spanLevel;
     static const int m_levelNbSamples;
@@ -229,6 +258,7 @@ private:
     void modulateSample();
     void applyStandard();
     void openImage(const QString& fileName);
+    void openVideo(const QString& fileName);
     void resizeImage();
 
     inline void pullImageLine(Real& sample)

plugins/channeltx/modatv/atvmodgui.cpp

@@ -235,11 +235,24 @@ void ATVModGUI::on_imageFileDialog_clicked(bool checked)
     if (fileName != "")
     {
         m_imageFileName = fileName;
-        ui->recordFileText->setText(m_imageFileName);
+        ui->imageFileText->setText(m_imageFileName);
         configureImageFileName();
     }
 }
 
+void ATVModGUI::on_videoFileDialog_clicked(bool checked)
+{
+    QString fileName = QFileDialog::getOpenFileName(this,
+        tr("Open video file"), ".", tr("Video Files (*.avi *.mpg *.mp4 *.mov *.m4v)"));
+
+    if (fileName != "")
+    {
+        m_videoFileName = fileName;
+        ui->videoFileText->setText(m_videoFileName);
+        configureVideoFileName();
+    }
+}
+
 void ATVModGUI::configureImageFileName()
 {
     qDebug() << "ATVModGUI::configureImageFileName: " << m_imageFileName.toStdString().c_str();
@@ -247,6 +260,13 @@ void ATVModGUI::configureImageFileName()
     m_atvMod->getInputMessageQueue()->push(message);
 }
 
+void ATVModGUI::configureVideoFileName()
+{
+    qDebug() << "ATVModGUI::configureVideoFileName: " << m_videoFileName.toStdString().c_str();
+    ATVMod::MsgConfigureVideoFileName* message = ATVMod::MsgConfigureVideoFileName::create(m_videoFileName);
+    m_atvMod->getInputMessageQueue()->push(message);
+}
+
 void ATVModGUI::onWidgetRolled(QWidget* widget, bool rollDown)
 {
 }

plugins/channeltx/modatv/atvmodgui.h

@@ -67,11 +67,13 @@ private slots:
     void on_volume_valueChanged(int value);
     void on_channelMute_toggled(bool checked);
     void on_imageFileDialog_clicked(bool checked);
+    void on_videoFileDialog_clicked(bool checked);
 
     void onWidgetRolled(QWidget* widget, bool rollDown);
     void onMenuDoubleClicked();
 
     void configureImageFileName();
+    void configureVideoFileName();
     void tick();
 
 private:
@@ -88,6 +90,7 @@ private:
     MovingAverage<Real> m_channelPowerDbAvg;
 
     QString m_imageFileName;
+    QString m_videoFileName;
     quint32 m_recordLength;
     int m_recordSampleRate;
     int m_samplesCount;

plugins/channeltx/modatv/atvmodgui.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>342</width>
-    <height>363</height>
+    <height>366</height>
    </rect>
   </property>
   <property name="sizePolicy">
@@ -466,18 +466,7 @@
      </widget>
     </item>
     <item>
-     <layout class="QHBoxLayout" name="fileNameLayout">
-      <item>
-       <widget class="QLabel" name="recordFileText">
-        <property name="text">
-         <string>...</string>
-        </property>
-       </widget>
-      </item>
-     </layout>
-    </item>
-    <item>
-     <layout class="QHBoxLayout" name="playControllLayout">
+     <layout class="QHBoxLayout" name="imagFileLayout">
       <item>
        <widget class="QPushButton" name="imageFileDialog">
         <property name="minimumSize">
@@ -505,12 +494,23 @@
        </widget>
       </item>
       <item>
-       <widget class="Line" name="line_5">
-        <property name="orientation">
-         <enum>Qt::Vertical</enum>
+       <widget class="QLabel" name="imageFileText">
+        <property name="text">
+         <string>...</string>
         </property>
        </widget>
       </item>
+     </layout>
+    </item>
+    <item>
+     <widget class="Line" name="line_5">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <layout class="QHBoxLayout" name="videoFileLayout">
       <item>
        <widget class="QPushButton" name="videoFileDialog">
         <property name="minimumSize">
@@ -537,6 +537,17 @@
         </property>
        </widget>
       </item>
+      <item>
+       <widget class="QLabel" name="videoFileText">
+        <property name="text">
+         <string>...</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+    <item>
+     <layout class="QHBoxLayout" name="playControllLayout">
       <item>
        <widget class="ButtonSwitch" name="playLoop">
         <property name="toolTip">