Method Display

src/Frame.cpp:120–156

Display the frame image to the screen (primarily used for debugging reasons)

// Display the frame image to the screen (primarily used for debugging reasons)
void Frame::Display()
{
	if (!QApplication::instance()) {
		// Only create the QApplication once
		static int argc = 1;
		static char* argv[1] = {NULL};
		previewApp = std::make_shared<QApplication>(argc, argv);
	}

	// Get preview image
	std::shared_ptr<QImage> previewImage = GetImage();

	// Update the image to reflect the correct pixel aspect ration (i.e. to fix non-square pixels)
	if (pixel_ratio.num != 1 || pixel_ratio.den != 1)
	{
		// Resize to fix DAR
		previewImage = std::make_shared<QImage>(previewImage->scaled(
				previewImage->size().width(), previewImage->size().height() * pixel_ratio.Reciprocal().ToDouble(),
				Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
	}

	// Create window
	QWidget previewWindow;
	previewWindow.setStyleSheet("background-color: #000000;");
	QHBoxLayout layout;

	// Create label with current frame's image
	QLabel previewLabel;
	previewLabel.setPixmap(QPixmap::fromImage(*previewImage));
	previewLabel.setMask(QPixmap::fromImage(*previewImage).mask());
	layout.addWidget(&previewLabel);

	// Show the window
	previewWindow.setLayout(&layout);
	previewWindow.show();
	previewApp->exec();
}

// Get an audio waveform image
std::shared_ptr<QImage> Frame::GetWaveform(int width, int height, int Red, int Green, int Blue, int Alpha)