hyperion.ng/src/hyperion-x11/hyperion-x11.cpp

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// QT includes
#include <QCoreApplication>
#include <QImage>
// getoptPlusPLus includes
#include <getoptPlusPlus/getoptpp.h>
#include "protoserver/ProtoConnectionWrapper.h"
#include "X11Wrapper.h"
using namespace vlofgren;
// save the image as screenshot
void saveScreenshot(const char * filename, const Image<ColorRgb> & image)
{
// store as PNG
QImage pngImage((const uint8_t *) image.memptr(), image.width(), image.height(), 3*image.width(), QImage::Format_RGB888);
pngImage.save(filename);
}
int main(int argc, char ** argv)
{
QCoreApplication app(argc, argv);
try
{
// create the option parser and initialize all parameters
OptionsParser optionParser("X11 capture application for Hyperion");
ParameterSet & parameters = optionParser.getParameters();
IntParameter & argFps = parameters.add<IntParameter> ('f', "framerate", "Capture frame rate [default=10]");
IntParameter & argCropWidth = parameters.add<IntParameter> (0x0, "crop-width", "Number of pixels to crop from the left and right sides of the picture before decimation [default=0]");
IntParameter & argCropHeight = parameters.add<IntParameter> (0x0, "crop-height", "Number of pixels to crop from the top and the bottom of the picture before decimation [default=0]");
IntParameter & argCropLeft = parameters.add<IntParameter> (0x0, "crop-left", "Number of pixels to crop from the left of the picture before decimation (overrides --crop-width)");
IntParameter & argCropRight = parameters.add<IntParameter> (0x0, "crop-right", "Number of pixels to crop from the right of the picture before decimation (overrides --crop-width)");
IntParameter & argCropTop = parameters.add<IntParameter> (0x0, "crop-top", "Number of pixels to crop from the top of the picture before decimation (overrides --crop-height)");
IntParameter & argCropBottom = parameters.add<IntParameter> (0x0, "crop-bottom", "Number of pixels to crop from the bottom of the picture before decimation (overrides --crop-height)");
IntParameter & argSizeDecimation = parameters.add<IntParameter> ('s', "size-decimator", "Decimation factor for the output size [default=8]");
SwitchParameter<> & argScreenshot = parameters.add<SwitchParameter<>> (0x0, "screenshot", "Take a single screenshot, save it to file and quit");
StringParameter & argAddress = parameters.add<StringParameter> ('a', "address", "Set the address of the hyperion server [default: 127.0.0.1:19445]");
IntParameter & argPriority = parameters.add<IntParameter> ('p', "priority", "Use the provided priority channel (the lower the number, the higher the priority) [default: 800]");
SwitchParameter<> & argSkipReply = parameters.add<SwitchParameter<>> (0x0, "skip-reply", "Do not receive and check reply messages from Hyperion");
SwitchParameter<> & argHelp = parameters.add<SwitchParameter<>> ('h', "help", "Show this help message and exit");
// set defaults
argFps.setDefault(10);
argCropWidth.setDefault(0);
argCropHeight.setDefault(0);
argSizeDecimation.setDefault(8);
argAddress.setDefault("127.0.0.1:19445");
argPriority.setDefault(800);
// parse all options
optionParser.parse(argc, const_cast<const char **>(argv));
// check if we need to display the usage. exit if we do.
if (argHelp.isSet())
{
optionParser.usage();
return 0;
}
// cropping values if not defined
if (!argCropLeft.isSet()) argCropLeft.setDefault(argCropWidth.getValue());
if (!argCropRight.isSet()) argCropRight.setDefault(argCropWidth.getValue());
if (!argCropTop.isSet()) argCropTop.setDefault(argCropHeight.getValue());
if (!argCropBottom.isSet()) argCropBottom.setDefault(argCropHeight.getValue());
// Create the X11 grabbing stuff
int grabInterval = 1000 / argFps.getValue();
X11Wrapper x11Wrapper(
grabInterval,
argCropLeft.getValue(),
argCropRight.getValue(),
argCropTop.getValue(),
argCropBottom.getValue(),
argSizeDecimation.getValue(), // horizontal decimation
argSizeDecimation.getValue()); // vertical decimation
if (argScreenshot.isSet())
{
// Capture a single screenshot and finish
const Image<ColorRgb> & screenshot = x11Wrapper.getScreenshot();
saveScreenshot("screenshot.png", screenshot);
}
else
{
// Create the Proto-connection with hyperiond
ProtoConnectionWrapper protoWrapper(argAddress.getValue(), argPriority.getValue(), 1000, argSkipReply.isSet());
// Connect the screen capturing to the proto processing
QObject::connect(&x11Wrapper, SIGNAL(sig_screenshot(const Image<ColorRgb> &)), &protoWrapper, SLOT(receiveImage(Image<ColorRgb>)));
// Start the capturing
x11Wrapper.start();
// Start the application
app.exec();
}
}
catch (const std::runtime_error & e)
{
// An error occured. Display error and quit
std::cerr << e.what() << std::endl;
return -1;
}
return 0;
}