97e8b3a2eb
qcam is a sample camera GUI application based on Qt. It demonstrates integration of the Qt event loop with libcamera. The application lets the user select a camera through the GUI, and then captures a single stream from the camera and displays it in a window. Only streams in YUYV formats are supported for now. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
76 lines
1.6 KiB
C++
76 lines
1.6 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* Copyright (C) 2019, Google Inc.
|
|
*
|
|
* main.cpp - cam - The libcamera swiss army knife
|
|
*/
|
|
|
|
#include <iostream>
|
|
#include <signal.h>
|
|
#include <string.h>
|
|
|
|
#include <QApplication>
|
|
|
|
#include <libcamera/camera_manager.h>
|
|
|
|
#include "main_window.h"
|
|
#include "../cam/options.h"
|
|
#include "qt_event_dispatcher.h"
|
|
|
|
void signalHandler(int signal)
|
|
{
|
|
std::cout << "Exiting" << std::endl;
|
|
qApp->quit();
|
|
}
|
|
|
|
OptionsParser::Options parseOptions(int argc, char *argv[])
|
|
{
|
|
OptionsParser parser;
|
|
parser.addOption(OptCamera, OptionString,
|
|
"Specify which camera to operate on", "camera",
|
|
ArgumentRequired, "camera");
|
|
parser.addOption(OptHelp, OptionNone, "Display this help message",
|
|
"help");
|
|
|
|
OptionsParser::Options options = parser.parse(argc, argv);
|
|
if (options.isSet(OptHelp))
|
|
parser.usage();
|
|
|
|
return options;
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
QApplication app(argc, argv);
|
|
int ret;
|
|
|
|
OptionsParser::Options options = parseOptions(argc, argv);
|
|
if (!options.valid())
|
|
return EXIT_FAILURE;
|
|
if (options.isSet(OptHelp))
|
|
return 0;
|
|
|
|
struct sigaction sa = {};
|
|
sa.sa_handler = &signalHandler;
|
|
sigaction(SIGINT, &sa, nullptr);
|
|
|
|
std::unique_ptr<EventDispatcher> dispatcher(new QtEventDispatcher());
|
|
CameraManager *cm = CameraManager::instance();
|
|
cm->setEventDispatcher(std::move(dispatcher));
|
|
|
|
ret = cm->start();
|
|
if (ret) {
|
|
std::cout << "Failed to start camera manager: "
|
|
<< strerror(-ret) << std::endl;
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
MainWindow *mainWindow = new MainWindow(options);
|
|
mainWindow->show();
|
|
ret = app.exec();
|
|
delete mainWindow;
|
|
|
|
cm->stop();
|
|
return ret;
|
|
}
|