hyperion.ng/libsrc/dispmanx-grabber/DispmanxWrapper.cpp

71 lines
1.7 KiB
C++

// QT includes
#include <QDebug>
#include <QDateTime>
// Hyperion includes
#include <hyperion/Hyperion.h>
#include <hyperion/ImageProcessorFactory.h>
#include <hyperion/ImageProcessor.h>
// Local-dispmanx includes
#include <dispmanx-grabber/DispmanxWrapper.h>
#include "DispmanxFrameGrabber.h"
DispmanxWrapper::DispmanxWrapper(const unsigned grabWidth, const unsigned grabHeight, const unsigned updateRate_Hz, Hyperion * hyperion) :
_updateInterval_ms(1000/updateRate_Hz),
_timeout_ms(2 * _updateInterval_ms),
_priority(1000),
_timer(),
_image(grabWidth, grabHeight),
_frameGrabber(new DispmanxFrameGrabber(grabWidth, grabHeight)),
_processor(ImageProcessorFactory::getInstance().newImageProcessor()),
_ledColors(hyperion->getLedCount(), RgbColor::BLACK),
_hyperion(hyperion)
{
// Configure the timer to generate events every n milliseconds
_timer.setInterval(_updateInterval_ms);
_timer.setSingleShot(false);
_processor->setSize(grabWidth, grabHeight);
// Connect the QTimer to this
QObject::connect(&_timer, SIGNAL(timeout()), this, SLOT(action()));
}
DispmanxWrapper::~DispmanxWrapper()
{
// Cleanup used resources (ImageProcessor and FrameGrabber)
delete _processor;
delete _frameGrabber;
}
void DispmanxWrapper::start()
{
// Start the timer with the pre configured interval
_timer.start();
}
void DispmanxWrapper::action()
{
// Grab frame into the allocated image
_frameGrabber->grabFrame(_image);
_processor->process(_image, _ledColors);
_hyperion->setColors(_priority, _ledColors, _timeout_ms);
}
void DispmanxWrapper::stop()
{
// Stop the timer, effectivly stopping the process
_timer.stop();
}
void DispmanxWrapper::setGrabbingMode(GrabbingMode mode)
{
if (mode == GRABBINGMODE_VIDEO)
start();
else
stop();
}