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

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// QT includes
#include <QDateTime>
// Hyperion includes
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#include <hyperion/Hyperion.h>
#include <hyperion/ImageProcessorFactory.h>
#include <hyperion/ImageProcessor.h>
// Dispmanx grabber includes
#include <grabber/DispmanxWrapper.h>
#include <grabber/DispmanxFrameGrabber.h>
DispmanxWrapper::DispmanxWrapper(const unsigned grabWidth, const unsigned grabHeight, const unsigned updateRate_Hz, const int priority)
: GrabberWrapper("Dispmanx", priority)
, _updateInterval_ms(1000/updateRate_Hz)
, _timeout_ms(2 * _updateInterval_ms)
, _image(grabWidth, grabHeight)
, _grabber(new DispmanxFrameGrabber(grabWidth, grabHeight))
, _ledColors(Hyperion::getInstance()->getLedCount(), ColorRgb{0,0,0})
{
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// Configure the timer to generate events every n milliseconds
_timer.setInterval(_updateInterval_ms);
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_processor->setSize(grabWidth, grabHeight);
}
DispmanxWrapper::~DispmanxWrapper()
{
delete _grabber;
}
void DispmanxWrapper::action()
{
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// Grab frame into the allocated image
_grabber->grabFrame(_image);
if ( _forward )
{
Image<ColorRgb> image_rgb;
_image.toRgb(image_rgb);
emit emitImage(_priority, image_rgb, _timeout_ms);
}
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_processor->process(_image, _ledColors);
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_hyperion->setColors(_priority, _ledColors, _timeout_ms);
}
void DispmanxWrapper::setGrabbingMode(const GrabbingMode mode)
{
switch (mode)
{
case GRABBINGMODE_VIDEO:
case GRABBINGMODE_PAUSE:
_grabber->setFlags(DISPMANX_SNAPSHOT_NO_RGB|DISPMANX_SNAPSHOT_FILL);
start();
break;
case GRABBINGMODE_AUDIO:
case GRABBINGMODE_PHOTO:
case GRABBINGMODE_MENU:
case GRABBINGMODE_SCREENSAVER:
case GRABBINGMODE_INVALID:
_grabber->setFlags(0);
start();
break;
case GRABBINGMODE_OFF:
stop();
break;
}
}
void DispmanxWrapper::setVideoMode(const VideoMode mode)
{
_grabber->setVideoMode(mode);
}
void DispmanxWrapper::setCropping(const unsigned cropLeft, const unsigned cropRight,
const unsigned cropTop, const unsigned cropBottom)
{
_grabber->setCropping(cropLeft, cropRight, cropTop, cropBottom);
}