fixed load meter during saving, writer emits signal when done

imagebuffer.cpp

@@ -60,7 +60,7 @@ bool ImageBuffer::pop(MyImage &img) {
   bool ret = false;
   mutex.lock();
   if (load > 0) {
-      std::cerr << "Buffer.pop, load: " << load << " read_idx: " << current_read_index << " write_idx: " << current_write_index << std::endl;
+     // std::cerr << "Buffer.pop, load: " << load << " read_idx: " << current_read_index << " write_idx: " << current_write_index << std::endl;
     img = buffer[static_cast<size_t>(current_read_index)];
     static_cast<size_t>(current_read_index) < (buffer.capacity() - 1) ? current_read_index += 1 : current_read_index = 0;
     load -= 1;

pylonrecorder.cpp

@@ -40,10 +40,13 @@ PylonRecorder::PylonRecorder(QWidget *parent)
   scrollArea->setWidget(imageLabel);
   scrollArea->setVisible(false);
   setCentralWidget(scrollArea);
+
   pylon = new PylonWrapper();
   buffer = new ImageBuffer(1000);
   grabber = new Grabber(pylon, buffer);
   writer = new Writer(buffer);
+  connect(writer, &Writer::writingDone, this, &PylonRecorder::writerDone);
+
   createActions();
   updateActions();
 
@@ -61,8 +64,15 @@ PylonRecorder::PylonRecorder(QWidget *parent)
   preassureBar->setPalette(progressPalette);
   QLabel *preassureLabel = new QLabel("Buffer preassure:", this);
 
+  loadBar = new QProgressBar(this);
+  loadBar->setRange(0, 1000);
+  QLabel *loadLabel = new QLabel("Load:", this);
+
   statusBar()->addWidget(preassureLabel);
   statusBar()->addWidget(preassureBar);
+  statusBar()->addWidget(loadLabel);
+  statusBar()->addWidget(loadBar);
+
   resize(QGuiApplication::primaryScreen()->availableSize() * 3 / 5);
 }
 
@@ -408,14 +418,18 @@ void PylonRecorder::startRecording() {
 }
 
 void PylonRecorder::stopRecording() {
+  frameTimer->stop();
   grabber->requestStop();
   writer->requestStop();
+}
+
+void PylonRecorder::writerDone() {
+  preassureTimer->stop();
+  preassureBar->reset();
+  loadBar->reset();
   grabber->wait(10000);
   writer->wait(10000);
   grabbing = false;
-  frameTimer->stop();
-  preassureTimer->stop();
-  preassureBar->reset();
   updateActions();
 }
 
@@ -448,6 +462,9 @@ void PylonRecorder::displayBufferPreassure() {
   QColor color = progressColor(value);
   progressPalette.setBrush(QPalette::Highlight, QBrush(color));
   preassureBar->setPalette(progressPalette);
+
+  int load = static_cast<int>(buffer->bufferLoad());
+  loadBar->setValue(load);
 }
 
 void PylonRecorder::grabStillFromPylon() {

pylonrecorder.h

@@ -56,6 +56,7 @@ private slots:
     void quitApplication();
     void displaySingleFrame();
     void displayBufferPreassure();
+    void writerDone();
 
 private:
     void createActions();
@@ -74,6 +75,7 @@ private:
     QTimer *preassureTimer;
     QLabel *imageLabel;
     QProgressBar *preassureBar;
+    QProgressBar *loadBar;
     QScrollArea *scrollArea;
     double scaleFactor = 1;
     PylonWrapper *pylon;

writer.cpp

@@ -6,6 +6,7 @@ void Writer::setVideoSpecs(VideoSpecs specs) {
 }
 
 void Writer::run() {
+  int64_t count = 0;
   if (valid) {
       stop_request = false;
       Pylon::CVideoWriter videoWriter;
@@ -13,9 +14,7 @@ void Writer::run() {
                                videoSpecs.fps, videoSpecs.quality);
       videoWriter.Open(videoSpecs.filename.c_str());
       MyImage img;
-      int64_t count = 0;
       while (!stop_request || buffer->bufferLoad() > 0) {
-          std::cerr << "running!\n";
           if (buffer->bufferLoad() > 0 ) {
               bool valid = buffer->pop(img);
               if (valid) {
@@ -40,4 +39,5 @@ void Writer::run() {
     } else {
       std::cerr << "Got no video specifications, not writing!" << std::endl;
     }
+  emit writingDone();
 }

writer.h

@@ -26,6 +26,10 @@ public:
    void run() override;
    void stop();
 
+signals:
+  void terminated();
+  void writingDone();
+
 private:
   ImageBuffer *buffer;
   VideoSpecs videoSpecs;
@@ -36,9 +40,6 @@ public slots:
   void requestStop() {
     stop_request=true;
   }
-
-signals:
-  void terminated();
 };
 
 #endif // WRITER_H