VideoRecorder::VideoRecorder(QDeclarativeItem *parent) :
QDeclarativeItem(parent)
{
m_camera = new QCamera(this);
connect(m_camera, SIGNAL(stateChanged(QCamera::State)), SLOT(cameraStateChanged(QCamera::State)));
connect(m_camera, SIGNAL(statusChanged(QCamera::Status)), SLOT(cameraStatusChanged(QCamera::Status)));
connect(m_camera, SIGNAL(error(QCamera::Error)), SLOT(cameraError(QCamera::Error)));
m_viewFinder = new QGraphicsVideoItem(this);
m_viewFinder->setAspectRatioMode(Qt::IgnoreAspectRatio);
m_camera->setViewfinder(m_viewFinder);
m_camera->setCaptureMode(QCamera::CaptureVideo);
m_recorder = new QMediaRecorder(m_camera, this);
connect(m_recorder, SIGNAL(stateChanged(QMediaRecorder::State)), SLOT(recorderStateChanged(QMediaRecorder::State)));
connect(m_recorder, SIGNAL(error(QMediaRecorder::Error)), SLOT(recorderError(QMediaRecorder::Error)));
connect(m_recorder, SIGNAL(durationChanged(qint64)), SLOT(videoDurationChanged(qint64)));
}
void V4L1Preview::start(unsigned int format, QSize size, int framerate)
{
Q_UNUSED(format);
Q_UNUSED(size);
Q_UNUSED(framerate);
wc->frames = 0;
wc->currentFrame = 0;
if (!wc->open())
emit cameraError(QtopiaCamera::FatalError, QString("cannot open device"));
notifier = new QSocketNotifier(wc->fd, QSocketNotifier::Read , this);
notifier->setEnabled(false);
connect(notifier, SIGNAL(activated(int)), this, SLOT(captureFrame()));
struct video_picture pict;
memset( &pict, 0, sizeof( pict ) );
ioctl( wc->fd, VIDIOCGPICT, &pict );
pict.palette = VIDEO_PALETTE_RGB24;
if ( ioctl( wc->fd, VIDIOCSPICT, &pict ) < 0 ) {
qWarning( "%s: could not set the picture mode", V4L_VIDEO_DEVICE );
emit cameraError(QtopiaCamera::FatalError, QString("VIDIOCSPICT"));
wc->close( );
return;
}
current_format = QtopiaCamera::RGB32;
// Set the new capture window.
struct video_window wind;
memset( &wind, 0, sizeof( wind ) );
wind.x = 0;
wind.y = 0;
wind.width = wc->current_resolution.width();
wind.height = wc->current_resolution.height();
if ( ioctl( wc->fd, VIDIOCSWIN, &wind ) < 0 ) {
emit cameraError(QtopiaCamera::FatalError, QString("could not set the capture window"));
wc->close();
return;
}
// Enable mmap-based access to the camera.
memset( &wc->mbuf, 0, sizeof( wc->mbuf ) );
if ( ioctl( wc->fd, VIDIOCGMBUF, &wc->mbuf ) < 0 ) {
emit cameraError(QtopiaCamera::FatalError, QString("mmap-based camera access is not available"));
wc->close( );
return;
}
// Mmap the designated memory region.
wc->frames = (unsigned char *)mmap( 0, wc->mbuf.size, PROT_READ | PROT_WRITE,
MAP_SHARED, wc->fd, 0 );
if ( !wc->frames || wc->frames == (unsigned char *)(long)(-1) ) {
emit cameraError(QtopiaCamera::FatalError, QString("could not mmap the device"));
wc->close( );
return;
}
preview_buffer_bytesused = wc->mbuf.size;
startCapture();
preview_active = true;
}
V4L1Preview::V4L1Preview(V4L1Webcam* w) : wc(w)
{
current_format = QtopiaCamera::RGB32;
connect(this, SIGNAL(cameraError(QtopiaCamera::CameraError,QString)),
wc, SIGNAL(cameraError(QtopiaCamera::CameraError,QString)));
}
