diff options
Diffstat (limited to 'test/qv4l2/qv4l2.cpp')
| -rw-r--r-- | test/qv4l2/qv4l2.cpp | 754 |
1 files changed, 754 insertions, 0 deletions
diff --git a/test/qv4l2/qv4l2.cpp b/test/qv4l2/qv4l2.cpp new file mode 100644 index 000000000..ba43ad5c8 --- /dev/null +++ b/test/qv4l2/qv4l2.cpp @@ -0,0 +1,754 @@ + +#include "qv4l2.h" + +#include <qimage.h> +#include <qpixmap.h> +#include <qtoolbar.h> +#include <qtoolbutton.h> +#include <qpopupmenu.h> +#include <qmenubar.h> +#include <qfile.h> +#include <qfiledialog.h> +#include <qstatusbar.h> +#include <qmessagebox.h> +#include <qapplication.h> +#include <qaccel.h> +#include <qlineedit.h> +#include <qvalidator.h> +#include <qlayout.h> +#include <qvbox.h> +#include <qhbox.h> +#include <qlabel.h> +#include <qslider.h> +#include <qspinbox.h> +#include <qcombobox.h> +#include <qcheckbox.h> +#include <qpushbutton.h> +#include <qpainter.h> +#include <qpaintdevicemetrics.h> +#include <qwhatsthis.h> + +#include <fcntl.h> +#include <sys/ioctl.h> +#include <errno.h> + +#include "fileopen.xpm" + +ApplicationWindow::ApplicationWindow() + : QMainWindow( 0, "V4L2 main window", WDestructiveClose | WGroupLeader ) +{ + QPixmap openIcon, saveIcon; + + fd = -1; + + sigMapper = NULL; + QToolBar * fileTools = new QToolBar( this, "file operations" ); + fileTools->setLabel( "File Operations" ); + + openIcon = QPixmap( fileopen ); + QToolButton * fileOpen + = new QToolButton( openIcon, "Open File", QString::null, + this, SLOT(choose()), fileTools, "open file" ); + + (void)QWhatsThis::whatsThisButton( fileTools ); + + const char * fileOpenText = "<p><img source=\"fileopen\"> " + "Click this button to open a <em>new v4l device</em>.<br>" + "You can also select the <b>Open</b> command " + "from the <b>File</b> menu.</p>"; + + QWhatsThis::add( fileOpen, fileOpenText ); + + QMimeSourceFactory::defaultFactory()->setPixmap( "fileopen", openIcon ); + + QPopupMenu * file = new QPopupMenu( this ); + menuBar()->insertItem( "&File", file ); + + + int id; + id = file->insertItem( openIcon, "&Open...", + this, SLOT(choose()), CTRL+Key_O ); + file->setWhatsThis( id, fileOpenText ); + + file->insertSeparator(); + + file->insertItem( "&Close", this, SLOT(close()), CTRL+Key_W ); + + file->insertItem( "&Quit", qApp, SLOT( closeAllWindows() ), CTRL+Key_Q ); + + menuBar()->insertSeparator(); + + QPopupMenu * help = new QPopupMenu( this ); + menuBar()->insertItem( "&Help", help ); + + help->insertItem( "&About", this, SLOT(about()), Key_F1 ); + help->insertItem( "What's &This", this, SLOT(whatsThis()), SHIFT+Key_F1 ); + + statusBar()->message( "Ready", 2000 ); + + tabs = new QTabWidget(this); + tabs->setMargin(3); + + //resize( 450, 600 ); +} + + +ApplicationWindow::~ApplicationWindow() +{ + if (fd >= 0) ::close(fd); +} + + +void ApplicationWindow::setDevice(const QString &device) +{ + if (fd >= 0) ::close(fd); + while (QWidget *page = tabs->page(0)) { + tabs->removePage(page); + delete page; + } + delete tabs; + delete sigMapper; + tabs = new QTabWidget(this); + tabs->setMargin(3); + sigMapper = new QSignalMapper(this); + connect(sigMapper, SIGNAL(mapped(int)), this, SLOT(ctrlAction(int))); + ctrlMap.clear(); + widgetMap.clear(); + classMap.clear(); + audioInput = NULL; + + fd = ::open(device, O_RDONLY); + if (fd >= 0) { + addGeneralTab(); + addTabs(); + } + if (QWidget *current = tabs->currentPage()) { + current->show(); + } + tabs->show(); + tabs->setFocus(); + setCentralWidget(tabs); +} + +void ApplicationWindow::addGeneralTab() +{ + int cnt = 0; + QVBox *vbox = new QVBox(tabs); + QGrid *grid = new QGrid(4, vbox); + grid->setSpacing(3); + tabs->addTab(vbox, "General"); + + struct v4l2_input vin; + memset(&vin, 0, sizeof(vin)); + if (ioctl(fd, VIDIOC_ENUMINPUT, &vin) >= 0) { + QLabel *label = new QLabel("Input", grid); + label->setAlignment(Qt::AlignRight); + QComboBox *combo = new QComboBox(grid); + while (ioctl(fd, VIDIOC_ENUMINPUT, &vin) >= 0) { + combo->insertItem((char *)vin.name); + vin.index++; + } + connect(combo, SIGNAL(activated(int)), SLOT(inputChanged(int))); + cnt++; + } + + struct v4l2_output vout; + memset(&vout, 0, sizeof(vout)); + if (ioctl(fd, VIDIOC_ENUMOUTPUT, &vout) >= 0) { + QLabel *label = new QLabel("Output", grid); + label->setAlignment(Qt::AlignRight); + QComboBox *combo = new QComboBox(grid); + while (ioctl(fd, VIDIOC_ENUMOUTPUT, &vout) >= 0) { + combo->insertItem((char *)vout.name); + vout.index++; + } + connect(combo, SIGNAL(activated(int)), SLOT(outputChanged(int))); + cnt++; + } + + struct v4l2_audio vaudio; + memset(&vaudio, 0, sizeof(vaudio)); + if (ioctl(fd, VIDIOC_ENUMAUDIO, &vaudio) >= 0) { + QLabel *label = new QLabel("Input Audio", grid); + label->setAlignment(Qt::AlignRight); + audioInput = new QComboBox(grid); + vaudio.index = 0; + while (ioctl(fd, VIDIOC_ENUMAUDIO, &vaudio) >= 0) { + audioInput->insertItem((char *)vaudio.name); + vaudio.index++; + } + connect(audioInput, SIGNAL(activated(int)), SLOT(inputAudioChanged(int))); + cnt++; + } + + struct v4l2_audioout vaudioout; + memset(&vaudioout, 0, sizeof(vaudioout)); + if (ioctl(fd, VIDIOC_ENUMAUDOUT, &vaudioout) >= 0) { + QLabel *label = new QLabel("Output Audio", grid); + label->setAlignment(Qt::AlignRight); + QComboBox *combo = new QComboBox(grid); + while (ioctl(fd, VIDIOC_ENUMAUDOUT, &vaudioout) >= 0) { + combo->insertItem((char *)vaudioout.name); + vaudioout.index++; + } + connect(combo, SIGNAL(activated(int)), SLOT(outputAudioChanged(int))); + cnt++; + } + + if (cnt & 1) { + new QWidget(grid); + new QWidget(grid); + } + QWidget *stretch = new QWidget(grid); + stretch->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Ignored); +} + +void ApplicationWindow::addTabs() +{ + struct v4l2_queryctrl qctrl; + unsigned ctrl_class; + unsigned i; + int id; + + memset(&qctrl, 0, sizeof(qctrl)); + qctrl.id = V4L2_CTRL_FLAG_NEXT_CTRL; + while (::ioctl(fd, VIDIOC_QUERYCTRL, &qctrl) == 0) { + if ((qctrl.flags & V4L2_CTRL_FLAG_DISABLED) == 0) { + ctrlMap[qctrl.id] = qctrl; + if (qctrl.type != V4L2_CTRL_TYPE_CTRL_CLASS) + classMap[V4L2_CTRL_ID2CLASS(qctrl.id)].push_back(qctrl.id); + } + qctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL; + } + if (qctrl.id == V4L2_CTRL_FLAG_NEXT_CTRL) { + strcpy((char *)qctrl.name, "User Controls"); + qctrl.id = V4L2_CTRL_CLASS_USER | 1; + qctrl.type = V4L2_CTRL_TYPE_CTRL_CLASS; + ctrlMap[qctrl.id] = qctrl; + for (id = V4L2_CID_USER_BASE; id < V4L2_CID_LASTP1; id++) { + qctrl.id = id; + if (::ioctl(fd, VIDIOC_QUERYCTRL, &qctrl)) + continue; + if (qctrl.flags & V4L2_CTRL_FLAG_DISABLED) + continue; + ctrlMap[qctrl.id] = qctrl; + classMap[V4L2_CTRL_CLASS_USER].push_back(qctrl.id); + } + for (qctrl.id = V4L2_CID_PRIVATE_BASE; + ::ioctl(fd, VIDIOC_QUERYCTRL, &qctrl) == 0; qctrl.id++) { + if (qctrl.flags & V4L2_CTRL_FLAG_DISABLED) + continue; + ctrlMap[qctrl.id] = qctrl; + classMap[V4L2_CTRL_CLASS_USER].push_back(qctrl.id); + } + } + + for (ClassMap::iterator iter = classMap.begin(); iter != classMap.end(); ++iter) { + ctrl_class = V4L2_CTRL_ID2CLASS(iter->second[0]); + id = ctrl_class | 1; + const struct v4l2_queryctrl &qctrl = ctrlMap[id]; + QVBox *vbox = new QVBox(tabs); + QGrid *grid = new QGrid(4, vbox); + grid->setSpacing(3); + tabs->addTab(vbox, (char *)qctrl.name); + for (i = 0; i < iter->second.size(); i++) { + if (i & 1) + id = iter->second[(1+iter->second.size()) / 2 + i / 2]; + else + id = iter->second[i / 2]; + addCtrl(grid, ctrlMap[id]); + } + finishGrid(vbox, grid, ctrl_class, i & 1); + } +} + +void ApplicationWindow::finishGrid(QWidget *vbox, QGrid *grid, unsigned ctrl_class, bool odd) +{ + if (odd) { + new QWidget(grid); + new QWidget(grid); + } + QWidget *stretch = new QWidget(grid); + stretch->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Ignored); + + QFrame *frame = new QFrame(vbox); + frame->setFrameShape(QFrame::HLine); + frame->setFrameShadow(QFrame::Sunken); + frame->setMargin(3); + + QHBox *hbox = new QHBox(vbox); + hbox->setSpacing(3); + + QCheckBox *cbox = new QCheckBox("Update on change", hbox); + widgetMap[ctrl_class | CTRL_UPDATE_ON_CHANGE] = cbox; + connect(cbox, SIGNAL(clicked()), sigMapper, SLOT(map())); + sigMapper->setMapping(cbox, ctrl_class | CTRL_UPDATE_ON_CHANGE); + + stretch = new QWidget(hbox); + stretch->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Fixed); + + QPushButton *defBut = new QPushButton("Set Defaults", hbox); + widgetMap[ctrl_class | CTRL_DEFAULTS] = defBut; + connect(defBut, SIGNAL(clicked()), sigMapper, SLOT(map())); + sigMapper->setMapping(defBut, ctrl_class | CTRL_DEFAULTS); + + QPushButton *refreshBut = new QPushButton("Refresh", hbox); + widgetMap[ctrl_class | CTRL_REFRESH] = refreshBut; + connect(refreshBut, SIGNAL(clicked()), sigMapper, SLOT(map())); + sigMapper->setMapping(refreshBut, ctrl_class | CTRL_REFRESH); + + QPushButton *button = new QPushButton("Update", hbox); + widgetMap[ctrl_class | CTRL_UPDATE] = button; + connect(button, SIGNAL(clicked()), sigMapper, SLOT(map())); + sigMapper->setMapping(button, ctrl_class | CTRL_UPDATE); + connect(cbox, SIGNAL(toggled(bool)), button, SLOT(setDisabled(bool))); + + cbox->setChecked(ctrl_class == V4L2_CTRL_CLASS_USER); + + refresh(ctrl_class); +} + +void ApplicationWindow::addCtrl(QGrid *grid, const struct v4l2_queryctrl &qctrl) +{ + QIntValidator *val; + QLineEdit *edit; + QString name((char *)qctrl.name); + QComboBox *combo; + struct v4l2_querymenu qmenu; + + QLabel *label = new QLabel(name, grid); + label->setAlignment(Qt::AlignRight); + + switch (qctrl.type) { + case V4L2_CTRL_TYPE_INTEGER: + if (qctrl.flags & V4L2_CTRL_FLAG_SLIDER) { + widgetMap[qctrl.id] = + new QSlider(qctrl.minimum, qctrl.maximum, + qctrl.step, qctrl.default_value, + Horizontal, grid); + connect(widgetMap[qctrl.id], SIGNAL(valueChanged(int)), + sigMapper, SLOT(map())); + break; + } + + if (qctrl.maximum - qctrl.minimum <= 255) { + widgetMap[qctrl.id] = + new QSpinBox(qctrl.minimum, qctrl.maximum, 1, grid); + connect(widgetMap[qctrl.id], SIGNAL(valueChanged(int)), + sigMapper, SLOT(map())); + break; + } + + val = new QIntValidator(qctrl.minimum, qctrl.maximum, grid); + edit = new QLineEdit(grid); + edit->setValidator(val); + widgetMap[qctrl.id] = edit; + connect(widgetMap[qctrl.id], SIGNAL(lostFocus()), + sigMapper, SLOT(map())); + connect(widgetMap[qctrl.id], SIGNAL(returnPressed()), + sigMapper, SLOT(map())); + break; + + case V4L2_CTRL_TYPE_INTEGER64: + widgetMap[qctrl.id] = new QLineEdit(grid); + connect(widgetMap[qctrl.id], SIGNAL(lostFocus()), + sigMapper, SLOT(map())); + connect(widgetMap[qctrl.id], SIGNAL(returnPressed()), + sigMapper, SLOT(map())); + break; + + case V4L2_CTRL_TYPE_BOOLEAN: + label->setText(""); + widgetMap[qctrl.id] = new QCheckBox(name, grid); + connect(widgetMap[qctrl.id], SIGNAL(clicked()), + sigMapper, SLOT(map())); + break; + + case V4L2_CTRL_TYPE_BUTTON: + label->setText(""); + widgetMap[qctrl.id] = new QPushButton((char *)qctrl.name, grid); + connect(widgetMap[qctrl.id], SIGNAL(clicked()), + sigMapper, SLOT(map())); + break; + + case V4L2_CTRL_TYPE_MENU: + combo = new QComboBox(grid); + widgetMap[qctrl.id] = combo; + for (int i = qctrl.minimum; i <= qctrl.maximum; i++) { + qmenu.id = qctrl.id; + qmenu.index = i; + if (::ioctl(fd, VIDIOC_QUERYMENU, &qmenu)) + continue; + combo->insertItem((char *)qmenu.name); + } + connect(widgetMap[qctrl.id], SIGNAL(activated(int)), + sigMapper, SLOT(map())); + break; + + default: + return; + } + sigMapper->setMapping(widgetMap[qctrl.id], qctrl.id); + if (qctrl.flags & (V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_INACTIVE)) + widgetMap[qctrl.id]->setDisabled(true); +} + +void ApplicationWindow::ctrlAction(int id) +{ + unsigned ctrl_class = V4L2_CTRL_ID2CLASS(id); + if (ctrl_class == V4L2_CID_PRIVATE_BASE) + ctrl_class = V4L2_CTRL_CLASS_USER; + unsigned ctrl = id & 0xffff; + QCheckBox *cbox = static_cast<QCheckBox *>(widgetMap[ctrl_class | CTRL_UPDATE_ON_CHANGE]); + bool update = cbox->isChecked(); + bool all = (ctrl == CTRL_UPDATE || (update && ctrl == CTRL_UPDATE_ON_CHANGE)); + + if (ctrl == CTRL_DEFAULTS) { + setDefaults(ctrl_class); + return; + } + if (ctrl == CTRL_REFRESH) { + refresh(ctrl_class); + return; + } + if (!update && !all && ctrlMap[id].type != V4L2_CTRL_TYPE_BUTTON) + return; + if (ctrl_class == V4L2_CTRL_CLASS_USER) { + if (!all) { + updateCtrl(id); + return; + } + for (unsigned i = 0; i < classMap[ctrl_class].size(); i++) { + updateCtrl(classMap[ctrl_class][i]); + } + return; + } + if (!all) { + updateCtrl(id); + return; + } + unsigned count = classMap[ctrl_class].size(); + struct v4l2_ext_control *c = new v4l2_ext_control[count]; + struct v4l2_ext_controls ctrls; + int idx = 0; + + for (unsigned i = 0; i < count; i++) { + unsigned id = classMap[ctrl_class][i]; + + if (ctrlMap[id].flags & (V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_INACTIVE)) + continue; + c[idx].id = id; + if (ctrlMap[id].type == V4L2_CTRL_TYPE_INTEGER64) + c[idx].value64 = getVal64(id); + else + c[idx].value = getVal(id); + idx++; + } + memset(&ctrls, 0, sizeof(ctrls)); + ctrls.count = idx; + ctrls.ctrl_class = ctrl_class; + ctrls.controls = c; + if (::ioctl(fd, VIDIOC_S_EXT_CTRLS, &ctrls)) { + int err = errno; + + if (ctrls.error_idx >= ctrls.count) { + printf("error: %s\n", strerror(err)); + } + else { + id = c[ctrls.error_idx].id; + printf("error %08x (%s): %s\n", id, + ctrlMap[id].name, strerror(err)); + } + } + delete [] c; + refresh(ctrl_class); +} + +long long ApplicationWindow::getVal64(unsigned id) +{ + const v4l2_queryctrl &qctrl = ctrlMap[id]; + QWidget *w = widgetMap[qctrl.id]; + + switch (qctrl.type) { + case V4L2_CTRL_TYPE_INTEGER64: + return static_cast<QLineEdit *>(w)->text().toLongLong(); + default: + return 0; + } +} + +int ApplicationWindow::getVal(unsigned id) +{ + const v4l2_queryctrl &qctrl = ctrlMap[id]; + QWidget *w = widgetMap[qctrl.id]; + v4l2_querymenu qmenu; + int i, idx; + + switch (qctrl.type) { + case V4L2_CTRL_TYPE_INTEGER: + if (qctrl.flags & V4L2_CTRL_FLAG_SLIDER) { + return static_cast<QSlider *>(w)->value(); + } + + if (qctrl.maximum - qctrl.minimum <= 255) { + return static_cast<QSpinBox *>(w)->value(); + } + return static_cast<QLineEdit *>(w)->text().toInt(); + + case V4L2_CTRL_TYPE_BOOLEAN: + return static_cast<QCheckBox *>(w)->isChecked(); + + case V4L2_CTRL_TYPE_MENU: + idx = static_cast<QComboBox *>(w)->currentItem(); + for (i = qctrl.minimum; i <= qctrl.maximum; i++) { + qmenu.id = qctrl.id; + qmenu.index = i; + if (::ioctl(fd, VIDIOC_QUERYMENU, &qmenu)) + continue; + if (idx-- == 0) + break; + } + return i; + + default: + break; + } + return 0; +} + +void ApplicationWindow::updateCtrl(unsigned id) +{ + unsigned ctrl_class = V4L2_CTRL_ID2CLASS(id); + if (ctrl_class == V4L2_CID_PRIVATE_BASE) + ctrl_class = V4L2_CTRL_CLASS_USER; + + if (ctrlMap[id].flags & (V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_INACTIVE)) + return; + + if (ctrl_class == V4L2_CTRL_CLASS_USER) { + struct v4l2_control c; + + c.id = id; + c.value = getVal(id); + if (::ioctl(fd, VIDIOC_S_CTRL, &c)) { + int err = errno; + + printf("error %08x (%s): %s\n", id, + ctrlMap[id].name, strerror(err)); + } + return; + } + struct v4l2_ext_control c; + struct v4l2_ext_controls ctrls; + + memset(&c, 0, sizeof(c)); + memset(&ctrls, 0, sizeof(ctrls)); + c.id = id; + if (ctrlMap[id].type == V4L2_CTRL_TYPE_INTEGER64) + c.value64 = getVal64(id); + else + c.value = getVal(id); + ctrls.count = 1; + ctrls.ctrl_class = ctrl_class; + ctrls.controls = &c; + if (::ioctl(fd, VIDIOC_S_EXT_CTRLS, &ctrls)) { + int err = errno; + + printf("error %08x (%s): %s\n", id, + ctrlMap[id].name, strerror(err)); + } + else if (ctrlMap[id].flags & V4L2_CTRL_FLAG_UPDATE) + refresh(ctrl_class); + else { + if (ctrlMap[id].type == V4L2_CTRL_TYPE_INTEGER64) + setVal64(id, c.value64); + else + setVal(id, c.value); + } +} + +void ApplicationWindow::refresh(unsigned ctrl_class) +{ + if (ctrl_class == V4L2_CTRL_CLASS_USER) { + for (unsigned i = 0; i < classMap[ctrl_class].size(); i++) { + unsigned id = classMap[ctrl_class][i]; + + v4l2_control c; + + c.id = id; + if (::ioctl(fd, VIDIOC_G_CTRL, &c)) { + int err = errno; + + printf("error %08x (%s): %s\n", id, + ctrlMap[id].name, strerror(err)); + } + setVal(id, c.value); + } + return; + } + unsigned count = classMap[ctrl_class].size(); + struct v4l2_ext_control *c = new v4l2_ext_control[count]; + struct v4l2_ext_controls ctrls; + + for (unsigned i = 0; i < count; i++) { + c[i].id = classMap[ctrl_class][i]; + } + memset(&ctrls, 0, sizeof(ctrls)); + ctrls.count = count; + ctrls.ctrl_class = ctrl_class; + ctrls.controls = c; + if (::ioctl(fd, VIDIOC_G_EXT_CTRLS, &ctrls)) { + int err = errno; + + if (ctrls.error_idx >= ctrls.count) { + printf("error: %s\n", strerror(err)); + } + else { + unsigned id = c[ctrls.error_idx].id; + printf("error %08x (%s): %s\n", id, + ctrlMap[id].name, strerror(err)); + } + } + else { + for (unsigned i = 0; i < ctrls.count; i++) { + unsigned id = c[i].id; + if (ctrlMap[id].type == V4L2_CTRL_TYPE_INTEGER64) + setVal64(id, c[i].value64); + else + setVal(id, c[i].value); + ::ioctl(fd, VIDIOC_QUERYCTRL, &ctrlMap[id]); + widgetMap[id]->setDisabled(ctrlMap[id].flags & + (V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_INACTIVE)); + } + } + delete [] c; +} + +void ApplicationWindow::setVal(unsigned id, int v) +{ + const v4l2_queryctrl &qctrl = ctrlMap[id]; + v4l2_querymenu qmenu; + QWidget *w = widgetMap[qctrl.id]; + int i, idx; + + switch (qctrl.type) { + case V4L2_CTRL_TYPE_INTEGER: + if (qctrl.flags & V4L2_CTRL_FLAG_SLIDER) + static_cast<QSlider *>(w)->setValue(v); + else if (qctrl.maximum - qctrl.minimum <= 255) + static_cast<QSpinBox *>(w)->setValue(v); + else + static_cast<QLineEdit *>(w)->setText(QString::number(v)); + break; + + case V4L2_CTRL_TYPE_BOOLEAN: + static_cast<QCheckBox *>(w)->setChecked(v); + break; + + case V4L2_CTRL_TYPE_MENU: + idx = 0; + for (i = qctrl.minimum; i <= v; i++) { + qmenu.id = id; + qmenu.index = i; + if (::ioctl(fd, VIDIOC_QUERYMENU, &qmenu)) + continue; + idx++; + } + static_cast<QComboBox *>(w)->setCurrentItem(idx - 1); + break; + default: + break; + } +} + +void ApplicationWindow::setVal64(unsigned id, long long v) +{ + const v4l2_queryctrl &qctrl = ctrlMap[id]; + QWidget *w = widgetMap[qctrl.id]; + + switch (qctrl.type) { + case V4L2_CTRL_TYPE_INTEGER64: + static_cast<QLineEdit *>(w)->setText(QString::number(v)); + break; + default: + break; + } +} + +void ApplicationWindow::setDefaults(unsigned ctrl_class) +{ + for (unsigned i = 0; i < classMap[ctrl_class].size(); i++) { + unsigned id = classMap[ctrl_class][i]; + + if (ctrlMap[id].type != V4L2_CTRL_TYPE_INTEGER64 && + ctrlMap[id].type != V4L2_CTRL_TYPE_BUTTON) + setVal(id, ctrlMap[id].default_value); + } + ctrlAction(ctrl_class | CTRL_UPDATE); +} + +void ApplicationWindow::choose() +{ + QString fn = QFileDialog::getOpenFileName( "/dev/v4l", QString::null, + this); + if ( !fn.isEmpty() ) { + setDevice(fn); + } + else + statusBar()->message( "Loading aborted", 2000 ); +} + + +void ApplicationWindow::closeEvent( QCloseEvent* ce ) +{ + ce->accept(); +} + +void ApplicationWindow::inputChanged(int input) +{ + ioctl(fd, VIDIOC_S_INPUT, &input); + struct v4l2_audio vaudio; + memset(&vaudio, 0, sizeof(vaudio)); + if (audioInput && ioctl(fd, VIDIOC_G_AUDIO, &vaudio) >= 0) { + audioInput->setCurrentItem(vaudio.index); + } +} + +void ApplicationWindow::outputChanged(int output) +{ + ioctl(fd, VIDIOC_S_OUTPUT, &output); +} + +void ApplicationWindow::inputAudioChanged(int input) +{ + struct v4l2_audio vaudio; + memset(&vaudio, 0, sizeof(vaudio)); + vaudio.index = input; + ioctl(fd, VIDIOC_S_AUDIO, &vaudio); +} + +void ApplicationWindow::outputAudioChanged(int output) +{ + struct v4l2_audioout vaudioout; + memset(&vaudioout, 0, sizeof(vaudioout)); + vaudioout.index = output; + ioctl(fd, VIDIOC_S_AUDOUT, &vaudioout); +} + +void ApplicationWindow::about() +{ + QMessageBox::about( this, "V4L2 Control Panel", + "This program allows easy experimenting with video4linux devices."); +} + + +int main(int argc, char **argv) +{ + QApplication a(argc, argv); + ApplicationWindow *mw = new ApplicationWindow(); + mw->setCaption( "V4L2 Control Panel" ); + mw->setDevice("/dev/video0"); + mw->show(); + a.connect( &a, SIGNAL(lastWindowClosed()), &a, SLOT(quit()) ); + return a.exec(); +} |