Visual Servoing Platform  version 3.2.0 under development (2018-08-18)
tutorial-video-reader.cpp
#include <visp3/gui/vpDisplayGDI.h>
#include <visp3/gui/vpDisplayOpenCV.h>
#include <visp3/gui/vpDisplayX.h>
#include <visp3/core/vpTime.h>
#include <visp3/io/vpVideoReader.h>
int main(int argc, char **argv)
{
#if (VISP_HAVE_OPENCV_VERSION >= 0x020100)
try {
std::string videoname = "video.mpg";
for (int i = 0; i < argc; i++) {
if (std::string(argv[i]) == "--name")
videoname = std::string(argv[i + 1]);
else if (std::string(argv[i]) == "--help") {
std::cout << "\nUsage: " << argv[0] << " [--name <video name>] [--help]\n" << std::endl;
return 0;
}
}
g.setFileName(videoname);
g.open(I);
std::cout << "video name: " << videoname << std::endl;
std::cout << "video framerate: " << g.getFramerate() << "Hz" << std::endl;
std::cout << "video dimension: " << I.getWidth() << " " << I.getHeight() << std::endl;
#ifdef VISP_HAVE_X11
vpDisplayX d(I);
#elif defined(VISP_HAVE_GDI)
#elif defined(VISP_HAVE_OPENCV)
#else
std::cout << "No image viewer is available..." << std::endl;
#endif
vpDisplay::setTitle(I, "Video reader");
while (!g.end()) {
double t = vpTime::measureTimeMs();
g.acquire(I);
if (vpDisplay::getClick(I, false))
break;
vpTime::wait(t, 1000. / g.getFramerate());
}
} catch (const vpException &e) {
std::cout << e.getMessage() << std::endl;
}
#else
(void)argc;
(void)argv;
std::cout << "Install OpenCV and rebuild ViSP to use this example." << std::endl;
#endif
}