QT-video.rar_QT 相机 软件_qt multimedia结构_qt video _qt1415

/******************************************************* ** ** Provided by 苏松剑, Fuzhou University ** Email: mileden@126.com ** Homepage: http://sonew.512j.com/ ** This product is free for use. ** last changed 2009-2-14 ** *******************************************************/ #include "vmsmainwindow.h" #include "videocaptureview.h" #include "camerasettings.h" #include "thumbbutton.h" #include "xvidencode.h" static const int thmarg=2; VMSMainWindow::VMSMainWindow(QWidget *parent, Qt::WFlags flags) : QMainWindow(parent, flags) { ui.setupUi(this); isViewingPhoto = false; mp4Buffer = 0; encoder = 0; videoFile = 0; isVideoRecording = false; storagePath = "./"; settings = new CameraSettings( this ); QWidget *cameraWidget = new QWidget(this); camera = new Ui::CameraBase(); camera->setupUi(cameraWidget); setCentralWidget(cameraWidget); thumb[0] = camera->thumb1; thumb[1] = camera->thumb2; thumb[2] = camera->thumb3; thumb[3] = camera->thumb4; thumb[4] = camera->thumb5; cur_thumb = -1; QSignalMapper* sm = new QSignalMapper(this); for (int i=0; i<nthumb; i++) { sm->setMapping(thumb[i],i); connect(thumb[i],SIGNAL(clicked()),sm,SLOT(map())); thumb[i]->installEventFilter(this); } connect(sm,SIGNAL(mapped(int)),this,SLOT(thumbClicked(int))); init(); connect( camera->photo, SIGNAL( clicked() ), this, SLOT( on_actionTake_Photo_triggered() ) ); connect( camera->video, SIGNAL( clicked() ), this, SLOT( toggleVideo() ) ); setWindowTitle( tr( "Video Monitor System" ) ); } VMSMainWindow::~VMSMainWindow() { } void VMSMainWindow::init() { photo_size = camera->videocaptureview->photoSizes(); pquality = settings->photo_quality->value(); for ( psize = 0; psize < (int)photo_size.count()-1; ++psize ); settings->photo_size->clear(); for (int i=0; i<(int)photo_size.count(); i++) { QString s = QString("%1 x %2").arg(photo_size[i].width()) .arg(photo_size[i].height()); settings->photo_size->addItem( s ); } ui.actionStop_Recording->setEnabled( false ); if ( camera->videocaptureview->available() ) { camera->video->setEnabled( false ); } else { // ui.action_Options->setEnabled( false ); ui.actionTake_Photo->setEnabled( false ); camera->photo->setEnabled( false ); camera->video->setEnabled( false ); ui.actionStart_Recording->setEnabled( false ); } camera->photo->setFocus(); } void VMSMainWindow::resizeEvent(QResizeEvent*) { thumbw = width()/5-4; thumbh = thumbw*3/4; qDebug() << "thumb width: " << thumbw << "\t thumb height: " << thumbh; camera->thumbs->setFixedHeight(thumbh+thmarg*2); loadThumbs(); } bool VMSMainWindow::event(QEvent* e) { /* if ( e->type() == QEvent::WindowActivate ) { if ( cur_thumb < 0 ) { toggleVideo(); } } else if ( e->type() == QEvent::WindowDeactivate ) { camera->videocaptureview->setLive(-1); } */ return QMainWindow::event(e); } void VMSMainWindow::toggleVideo() { if ( camera->videocaptureview->available() ) { isViewingPhoto = false; camera->video->setEnabled( false ); camera->photo->setEnabled( true ); camera->videocaptureview->setLive(); } } void VMSMainWindow::loadThumbs() { QDir dir( storagePath, "*.jpg", QDir::Time ); QStringList fileNameList = dir.entryList(); qDebug() << "picture numbers: " << fileNameList.size(); for ( int i = 0; i < nthumb; ++i) { QString file = storagePath; QPixmap pm; if (i < fileNameList.size() ) { file.append( fileNameList.at(i) ); picturefile[i] = file; QImage img( file ); pm = QPixmap::fromImage(img.scaled(QSize( thumbw, thumbh ), Qt::KeepAspectRatio, Qt::SmoothTransformation)); } thumb[i]->setIcon( pm ); thumb[i]->setEnabled( !pm.isNull() ); } if ( isViewingPhoto ) { if ( cur_thumb < fileNameList.size() ) selectThumb(cur_thumb); else selectThumb( fileNameList.size() - 1 ); } ui.action_Delete->setVisible( fileNameList.size() > 0 ); } void VMSMainWindow::selectThumb(int i) { isViewingPhoto = true; cur_thumb = i; if ( i >= 0 ) { QImage img( picturefile[i] ); camera->videocaptureview->setStill(img); thumb[i]->setFocus(); camera->photo->setEnabled( false ); if ( camera->videocaptureview->available() ) camera->video->setEnabled( true ); } else { toggleVideo(); } } void VMSMainWindow::delThumb(int th) { QString file = picturefile[th]; file.replace(storagePath, "" ); switch(QMessageBox::warning(0, tr("Confirmation"), tr("<qt>Delete '%1'?</qt>", "%1 = file name").arg( file ), QMessageBox::Yes, QMessageBox::No)) { case QMessageBox::Yes: QFile::remove( picturefile[th] ); loadThumbs(); // Rhys Hack - if we have just deleted the last image and there // is no camera connected, then exit the application. This // avoids a focus problem where it is impossible to exit with // the back button due to the focus being in a stupid place. if ( !camera->videocaptureview->available() && !(thumb[0]->isEnabled()) ) { close(); } break; default: //nothing break; } } void VMSMainWindow::pushThumb(const QString file, const QImage& img) { for (int i=nthumb; --i; ) { bool en = thumb[i-1]->isEnabled(); thumb[i]->setEnabled(en); QIcon icon = thumb[i-1]->icon(); if ( en && !icon.isNull() ) { thumb[i]->setIcon(icon); picturefile[i] = picturefile[i-1]; } else { thumb[i]->setText(""); } } thumb[0]->setIcon(QPixmap::fromImage(img.scaled( QSize( thumbw, thumbh ), Qt::KeepAspectRatio, Qt::SmoothTransformation))); thumb[0]->setEnabled(true); picturefile[0] = file; // updateAction(); ui.action_Delete->setVisible( true ); } void VMSMainWindow::on_action_Exit_triggered() { qApp->quit(); } void VMSMainWindow::on_action_Open_triggered() { QString file = QFileDialog::getOpenFileName( this, tr("Open File"), storagePath, tr("MPEG (*.m4v)") ); camera->videocaptureview->setCaptureSource( file ); toggleVideo(); init(); } void VMSMainWindow::thumbClicked(int i) { selectThumb(i); qDebug() << "thumb " << i << " clicked."; } void VMSMainWindow::on_action_About_triggered() { QMessageBox::about( this, tr( "About Video Monitor System" ), tr( "<p><b>Video Monitor System</b></p><p></p>" "<p>Version 0.0.3 (2009-2-14)</p><p></p>" "<p>Provided by Songjian Su (mileden@126.com)</p><p></p>" "<p>For more infomation, please visit</p>" "<p><a href = http://sonew.512j.com>http://sonew.512j.com</a></p>" ) ); } void VMSMainWindow::on_action_Options_triggered() { settings->show(); settings->photo_size->setCurrentIndex( psize ); settings->photo_quality->setValue( pquality ); if ( settings->exec() ) { storagePath = settings->getStoragePath(); storagePath.append( "/" ); psize = setti