#include <visp3/core/vpTime.h>
#include <visp3/gui/vpDisplayGDI.h>
#include <visp3/gui/vpDisplayGTK.h>
#include <visp3/gui/vpDisplayOpenCV.h>
#include <visp3/gui/vpDisplayX.h>
#include <visp3/io/vpVideoWriter.h>
#include <visp3/sensor/vpV4l2Grabber.h>
int main(int argc, const char *argv[])
{
#if ((defined(VISP_HAVE_V4L2) || (VISP_HAVE_OPENCV_VERSION >= 0x020100)) && \
(defined(VISP_HAVE_X11) || defined(VISP_HAVE_GDI) || defined(VISP_HAVE_OPENCV) || defined(VISP_HAVE_GTK)))
std::string opt_videoname = "video-recorded.mpg";
int opt_device = 0;
for (int i = 0; i < argc; i++) {
if (std::string(argv[i]) == "--device")
opt_device = atoi(argv[i + 1]);
else if (std::string(argv[i]) == "--name")
opt_videoname = std::string(argv[i + 1]);
else if (std::string(argv[i]) == "--help") {
std::cout << "\nUsage: " << argv[0] << " [--device <device number>] [--name <video name>] [--help]\n"
<< std::endl;
return 0;
}
}
std::cout << "Use device: " << opt_device << std::endl;
std::cout << "Record video in: " << opt_videoname << std::endl;
try {
#if defined(VISP_HAVE_V4L2)
std::ostringstream device;
device << "/dev/video" << opt_device;
#elif defined(VISP_HAVE_OPENCV)
cv::VideoCapture g(opt_device);
if (!g.isOpened()) {
std::cout << "Failed to open the camera" << std::endl;
return -1;
}
cv::Mat frame;
g >> frame;
#endif
#if defined(VISP_HAVE_X11)
#elif defined(VISP_HAVE_GDI)
#elif defined(VISP_HAVE_OPENCV)
#elif defined(VISP_HAVE_GTK)
#endif
d.
init(I, 0, 0,
"Camera view");
#if VISP_HAVE_OPENCV_VERSION >= 0x030000
writer.
setCodec(cv::VideoWriter::fourcc(
'P',
'I',
'M',
'1'));
#elif VISP_HAVE_OPENCV_VERSION >= 0x020100
writer.
setCodec(CV_FOURCC(
'P',
'I',
'M',
'1'));
#endif
bool recording = false;
for (;;) {
#if defined(VISP_HAVE_V4L2)
g.acquire(I);
#elif defined(VISP_HAVE_OPENCV)
g >> frame;
#endif
if (recording == false) {
recording = true;
} else {
break;
}
}
std::cout << "The video was recorded in \"" << opt_videoname << "\"" << std::endl;
std::cout << "Catch an exception: " << e << std::endl;
}
#else
(void)argc;
(void)argv;
std::cout << "Install OpenCV and rebuild ViSP to use this example." << std::endl;
#endif
}