hyperion.ng/libsrc/grabber/v4l2/V4L2Wrapper.cpp
2017-11-22 00:52:55 +01:00

108 lines
2.6 KiB
C++

#include <QMetaType>
#include <grabber/V4L2Wrapper.h>
#include <hyperion/ImageProcessorFactory.h>
V4L2Wrapper::V4L2Wrapper(const QString &device,
int input,
VideoStandard videoStandard,
PixelFormat pixelFormat,
unsigned width,
unsigned height,
int frameDecimation,
int pixelDecimation,
double redSignalThreshold,
double greenSignalThreshold,
double blueSignalThreshold,
const int priority)
: GrabberWrapper("V4L2:"+device, &_grabber, width, height, 8, priority, hyperion::COMP_V4L)
, _grabber(device,
input,
videoStandard,
pixelFormat,
width,
height,
frameDecimation,
pixelDecimation,
pixelDecimation)
{
// set the signal detection threshold of the grabber
_grabber.setSignalThreshold( redSignalThreshold, greenSignalThreshold, blueSignalThreshold, 50);
_ggrabber = &_grabber;
// register the image type
qRegisterMetaType<Image<ColorRgb>>("Image<ColorRgb>");
qRegisterMetaType<std::vector<ColorRgb>>("std::vector<ColorRgb>");
qRegisterMetaType<hyperion::Components>("hyperion::Components");
// Handle the image in the captured thread using a direct connection
QObject::connect(&_grabber, SIGNAL(newFrame(Image<ColorRgb>)), this, SLOT(newFrame(Image<ColorRgb>)), Qt::DirectConnection);
QObject::connect(&_grabber, SIGNAL(readError(const char*)), this, SLOT(readError(const char*)), Qt::DirectConnection);
_timer.setInterval(500);
}
bool V4L2Wrapper::start()
{
return ( _grabber.start() && GrabberWrapper::start());
}
void V4L2Wrapper::stop()
{
_grabber.stop();
GrabberWrapper::stop();
}
void V4L2Wrapper::setCropping(int cropLeft, int cropRight, int cropTop, int cropBottom)
{
_grabber.setCropping(cropLeft, cropRight, cropTop, cropBottom);
}
void V4L2Wrapper::setSignalDetectionOffset(double verticalMin, double horizontalMin, double verticalMax, double horizontalMax)
{
_grabber.setSignalDetectionOffset(verticalMin, horizontalMin, verticalMax, horizontalMax);
}
void V4L2Wrapper::newFrame(const Image<ColorRgb> &image)
{
emit emitImage(_priority, image, _timeout_ms);
// process the new image
_processor->process(image, _ledColors);
setColors(_ledColors, _timeout_ms);
}
void V4L2Wrapper::readError(const char* err)
{
Error(_log, "stop grabber, because reading device failed. (%s)", err);
stop();
}
void V4L2Wrapper::checkSources()
{
if ( _hyperion->isCurrentPriority(_priority))
{
_grabber.start();
}
else
{
_grabber.stop();
}
}
void V4L2Wrapper::action()
{
checkSources();
}
void V4L2Wrapper::setSignalDetectionEnable(bool enable)
{
_grabber.setSignalDetectionEnable(enable);
}
bool V4L2Wrapper::getSignalDetectionEnable()
{
return _grabber.getSignalDetectionEnabled();
}