IOutputStream&
BinaryOutputStream::write(const void* data, const uint32_t size)
{
requestSize(size);
Memory::Copy(mBuffer.getRawData() + mSize, data, size);
mSize += size;
return *this;
}
void CDigitalCamera::PowerOnComplete(TInt aError)
{
TCameraInfo cameraInfo;
iCamera->CameraInfo(cameraInfo);
if ((aError == KErrNone) &&
(cameraInfo.iOptionsSupported & TCameraInfo::EViewFinderBitmapsSupported) &&
(cameraInfo.iOrientation == TCameraInfo::EOrientationOutwards))
{
TSize requestSize(iViewportSize);
LOGARG("Requesting viewfinder size %d x %d", requestSize.iWidth, requestSize.iHeight);
TRAPD(error, iCamera->StartViewFinderL(CCamera::EFormatFbsBitmapColor16MU, requestSize));
LOGARG("Obtaining viewfinder size %d x %d", requestSize.iWidth, requestSize.iHeight);
iObserver.CameraReady(error);
}
else
{
// Either power complete error or viewfinder bitmap unsupported
iObserver.CameraReady(KErrNotSupported);
}
}
void VideoInput::configure_v4l2(int index, bool silent)
{
#ifdef Q_OS_LINUX
cv::Size requestSize(0,0);
int CameraNumber = index;
/* Print the CameraNumber at the end of the string with a width of one character */
char deviceName[V4L2_MAX_DEVICE_DRIVER_NAME];
sprintf(deviceName, "/dev/video%1d", CameraNumber);
/* Test using an open to see if this new device name really does exists. */
int deviceHandle = open(deviceName, O_RDONLY);
if (deviceHandle != -1)
{
//find the maximum resolution
struct v4l2_fmtdesc fmtdesc;
fmtdesc.index = 0;
fmtdesc.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
while (ioctl(deviceHandle, VIDIOC_ENUM_FMT, &fmtdesc)==0 && fmtdesc.index!=EINVAL)
{
if (!silent) { fprintf(stderr, "v4l cam %d, pixel_format %d: %s\n", CameraNumber, fmtdesc.index, fmtdesc.description); }
struct v4l2_frmsizeenum frmsizeenum;
frmsizeenum.index = 0;
frmsizeenum.pixel_format = fmtdesc.pixelformat;
while (ioctl(deviceHandle, VIDIOC_ENUM_FRAMESIZES, &frmsizeenum)==0 && frmsizeenum.index!=EINVAL)
{
cv::Size size;
if (frmsizeenum.type==V4L2_FRMSIZE_TYPE_DISCRETE)
{
size = cv::Size(frmsizeenum.discrete.width, frmsizeenum.discrete.height);
}
else
{
size = cv::Size(frmsizeenum.stepwise.max_width, frmsizeenum.stepwise.min_height);
}
if (requestSize.width<size.width)
{
requestSize = size;
}
if (!silent) { fprintf(stderr, "v4l cam %d, supported size w=%d h=%d\n", CameraNumber, size.width, size.height); }
++frmsizeenum.index;
}
++fmtdesc.index;
}
}
close(deviceHandle);
// RSA_HACK:
if (requestSize.width == 2304 && requestSize.height == 1296)
{
requestSize.width = 1920;
requestSize.height = 1080;
}
if (_video_capture && requestSize.width>0)
{
if (!silent) { fprintf(stderr, " *** v4l cam %d, selected size w=%d h=%d\n", CameraNumber, requestSize.width, requestSize.height); }
cvSetCaptureProperty(_video_capture, CV_CAP_PROP_FRAME_WIDTH, requestSize.width);
cvSetCaptureProperty(_video_capture, CV_CAP_PROP_FRAME_HEIGHT, requestSize.height);
}
#endif //Q_OS_LINUX
}
