我正在用openCV读取视频文件,我使用以下简单的代码来做这件事。
std::string arg = argv[1];
VideoCapture capture(arg); //try to open string, this will attempt to open it as a video file
if (!capture.isOpened()) {
cerr << "Failed to open video file!\n" << endl;
help(argv);
system
我正在尝试使用Qt从互联网上播放音乐,但是这种代码的平静并不真正有效(我认为它应该: ):
/
void MainWindow::play()
{
player_ = new QMediaPlayer(this, QMediaPlayer::StreamPlayback);
player_->setMedia(QUrl("http://eteris.startfm.lt/startfm.ogg"));
//// When I use this line, it actually works :)
////player_->setM