Hello
I am working on a project that it's aim is to display the stereo stream which source is a remote streaming server with two DFK 31BF03 Firewire cameras. We are using RTSP for communication.

For the first phase of the project,I have implemented the system that client can get an image pair and display it in stereo mode.On this system,for the server,I have written a C++ application with Imaging Source SDK.In the application,as a summary,I created two grabber objects at the same time , by taking bandwidth issues into account.That phase is implemented and in a working state.

In the second part, I am trying to improve the system that streaming server will stream real time video.For that purpose,I am using Graphedit to build the graph that gets the frames,encodes them and send them over RTP.
However,in graphedit, I cannot connect two camera filters at the same time. If one device is connected,graphedit does not allow to connect the second device to any filter.

Is there a way that I can change some parameters maybe in registry and use them both in application?

Attached image contains the graph that I am using.

Attached Images

• untitled.PNG (12.5 KB)

I am working on an application where I want to just capture an image sequence as opposed to movie file, but still at 30fps frame rate. I would ideally like uncompressed images and have them named something like img_1, img_2, img_3, etc. I was just wondering if there was an easy way to do this?

Hi,

We're using IC Imaging Control c++ class library with Visual Studio 2005 for development of a software product.
We decided to migrate our software from 32bit OS to 64bit OS, because of some data requirements( we need more space for keeping data ).
But it seems there is either no support for x64 bit platform on VS 2005, or the installation is not complete( missing that dll ).
Because the linking of the SDK is controlled via some macros in the headers, when switching to x64 platform in VS 2005, and trying to build, the linker complains that dll is missing.
So, looking at installation folders of the class library, I found that for win32 there are the following dlls:
-TIS_UDSHL08_vc8.dll
-TIS_DShowLib08.dll
But for x64 there is only TIS_DShowLib08_x64.dll. The TIS_UDSHL08_vc8_x64.dll is missing.
There is one for Visual Studio 2008 ( TIS_UDSHL08_vc9_x64.dll ), but this means that we should use VS 2008.
I searched trough forums for such a problem, but couldn't find a similar problem. The installation that we use is from the disks we received with the cameras( IC Imaging Control 3.1 ). 3.1.0.542 is the version of the dlls inside the SDK folders.

Even googling for the name of that particular dll gave almost no results - it is only listed in some docs related to help of the SDK, which states that for x64 platform, that dll should be used.

Best Regards,
Alex

Good Day,
I have a simple Java JNI code running a C++ native code method to generate a BMP image from snapping a live image from a DFK72BUC02 camera. The code works perfectly but when ran a few times (e.g. 4 - 5) always hangs up (i.e. need to close command window to escape). This seems to be a memory leak problem but Windows Task Mgr, Performance Monitor and Java tools do not indicate a leakage. Also I have tried various ways to prevent leakage in C++ code with no change. My environment is: camera connected by USB to Intel 32 PC with Windows XP SP3. I have also installed Processor State Idle Manager. Below is code:
JNICature.java
JNICapture.cpp
Could you provide some direction on how to reslove this issue?
Many Thanks
Mark

I experience a strange issue under Windows 7 64 bit. In particular both IC capture and my own software based on OpenCV have some kind of problem during acquisition. The issue is depicted into the attached figure.error.jpg. As you can see with ICCapture I experience a slow acquisition rate (1 FPS) and strange pictures. With OpenCV I've got a normal acquisition rate but the problem with strange pictures still exists. It very annoying especially because if I acquire using my standard webcam software (ArcSoft WebCam companion) I've got no problem at all. My camera model is DFK-41AF02 which is connected to my laptop using an ExpressCard. Can you realize what's the problem?

Also, is it possible to use a resolution different from 1280x960 in order to acquire from two cameras?

Attached Images

• error.jpg (108.0 KB)

Just started on this 2 days ago, so very little experience of the class library so far. Developing with VS 2003 in c++.

Managed to write an AVI file OK, but - when trying to play it in VLC, VLC says 'broken file, will not seek, repair?". Does play it OK, however. Windows media player also plays it but doesn't say anything. The VLC messages seem to indicate it is something to do with the AVI index.

Doesn't seem to depend on the codec - same issue in each case, but usually experimenting with DV video encoder or Xvid MPEG4.

However, when I write a file using the provided IC capture app - same codec, no problem.

Not sure what I'm doing wrong, using the sample code really:

To start it:

tMediaStreamSinkPtr pMediaSink =
MediaStreamSink::create(MediaStreamContainer::crea te(MSC_AviContainer), pCodecs->at(CurrentCodec));

pMediaSink->setFilename((LPCTSTR)Path);
pMediaSink->setSinkMode(GrabberSinkType::ePAUSE);
m_cGrabber.setSinkType(pMediaSink);
m_cGrabber.startLive(true);
pMediaSink->setSinkMode(GrabberSinkType::eRUN);


and to stop it:

m_cGrabber.stopLive();


I don't seem to have any control over the actual file writing apart from providing the name and path, so cannot see what I'm doing wrong. What does IC Capture do that I don't?

Second question: is there any way of 'forcing' the AVI file to have a specific frame rate set, regardless of what the actual capture rate of the frames was?

I need to record video using ImagingSource frame grabber and audio from external microphone. I know that IC Imaging Control does not support sound recording, but instead I can build a DirectShow graph using frame grabber as my video source (it does show up as DirectShow capture filter). That works and records video with sound. Unfortunately from DirectShow I have no control over video properties. For example, it comes black and white. Also, I cannot chose video source (which card, which input on the card). All these controls are available from the Grabber object but this object appears to be incompatible with my DirectShow graph. Even an attempt to create it causes a crash. I suppose the Grabber builds a DirectShow graph internally and therefore doesn't allow another one for the same source.

Is there a way to control frame grabber properties from DirectShow environment without instantiating a Grabber object? If not, can you suggest another way of adding the sound?

Hello! I have a 22BUC03 Camera. Trying to understand the C++ library code.

I need to get to my internal memory the captured frame. All I found in examples writes the frames to hwnd or to avi file. I need the full 76 fps video stream.

something like:

while(1)
{
QuicklyGetFrame();
ProcessFrame();
}

How Can I realize the QuicklyGetFrame function? I tried something like:

MemBufferCollection::tMemBufferPtr getSingleFrame( Grabber& gr, tColorformatEnum type )
{
smart_ptr<FrameHandlerSink> pHandlerSink = FrameHandlerSink::create(type, 1);
pHandlerSink->setSnapMode(true);

gr.setSinkType(pHandlerSink);

gr.startLive(false);
//Sleep(250); // give the device time to adjust automatic settings i.e. auto exposure
pHandlerSink->snapImages(1, 2000);
gr.stopLive();

// get pointer to the image data
return pHandlerSink->getLastAcqMemBuffer();
}

even without Sleep(250); the capturing is slow, something like 3 fps. What should I do?

Thanks in advance.

P.S. the examples that show video stream to window work perfectly.

Hello to all
I use the imaging control version 3.0 now i would like to upgrade and use the version 3.2 but when i install the software it is not possible to select the installation path, it will install by itself in c:\Programm Files\The imaging Source\ .....
Is there any possibility to change this installation path ??

Hi,

For my capture application (FireCapture) I'm trying to intialize TIS-cameras without dialog. I want to start the cam always in Y800 and with highest framerate/image size.
The following code seems to work for my DMK41 under XP using the older DCAM driver (v4.1.1.1) but some users report errors when they try this on Win7.

bool initCamWithoutDialog() {
Grabber::tVidCapDevListPtr pVidCapDevList = grabber->getAvailableVideoCaptureDevices();
if (!grabber->openDev( (*pVidCapDevList)[0])) {
return false;
}
std::string camName = grabber->getDev().getName();
size_t found;
found = camName.find("21");
if (found!=std::string::npos) {
if (grabber->setVideoFormat( "Y800 (640x480)" )) {
return grabber->setFPS( 60.0 );
}
}
found = camName.find("31");
if (found!=std::string::npos) {
if (grabber->setVideoFormat( "Y800 (1024x768)" )) {
return grabber->setFPS( 30.0 );
}
}
found = camName.find("41");
if (found!=std::string::npos) {
if (grabber->setVideoFormat( "Y800 (1280x960)" )) {
return grabber->setFPS( 15.0 );
}
}
return false;
}

Is there something missing in the above code or what I'm doing wrong ?

Thanks for helping,
Torsten

Dear Sir,

I wish you a happy new year.
I am developping application using QT4.7.4 + QTcreator + Mingw 4.4
I am already used your IC Imaging Control 3.1 with visual C++ 8 but now I would like to use my code using the QT environnement.
Is it possible to use the same dll or could you provide me the dll for Mingw

Best regards,

VPM

I am trying to change the exposure value programmatically by using the setProperty() function. In my image sourcing camera i am getting the exposure value like as 1/1000, 1/500 and so on. But in setProperty() function the argument that need to pass is an type of long. please tell me if there is any other function is available to process it.

Thanks in Advance
Dinesh Kumar

I am working in image processing i have tried to set the exposure value in my program by using the setProperty() function. i have to pass the double value in the second argument but there is no possibility to send double instead of long. Is there any other function to over-come it.

Thanks in Advance
Dinesh Kumar

We are using the DFG/USB-lt converter with a 30 Hz camera and reading in the frames using the v3.2 Imaging Control software in C++. We would like to know the timing of each frame as it arrives to a fair degree of accuracy (at least 1 ms say). I am able to measure the time as each frames arrives in the frameReady() event handler using the Windows high performance time counter. However, there appears to be significant variability in the differences between frame times - typically the differences hover around 33 ms as one might expect but occasionally we get some that are about about 45 ms, some even longer. I know Windows is most likely to blame for this as it is not a real-time OS. We have done our best to remove other background processes that might cause things to be interrupted or delayed but I am wondering whether you have a hardware based time stamp that we can access that would be unaffected by such delays. I looked at the structure you mentioned in another thread:

typedef struct
{
REFERENCE_TIME SampleStart;
REFERENCE_TIME SampleEnd;
DWORD FrameNumber;
tFrameDesc FrameType; // Type of the frame
} tsMediaSampleDesc;

I was hoping that the SampleStart would be the kind of thing that we are looking for. However, these times stamps seem to be afflicted with almost the same amount of jitter as the time stamps I am generating. Do you have anything that stamps the time of the frame data as it comes in?

Thanks

Hi,
I am developing software that utilizes the camera software to capture image data. The application is being developed in VS 2005 and is built for win32 platforms and uses the win32 dlls for the camera libraries. The project will build fine and run with the ability to use the camera on my Windows 7 Professional 64-bit system, but when it is installed on a 32-bit system, with the TIS_UDSHL09_vc8 and TIS_DShowLib dlls included, and I try to click on the .exe I receive the following error:

"The application was unable to start correctly (0xc0150002). Click OK to close the application"

If I go and comment out any use of DShowLib::Grabber and DShowLib::FrameHandlerSink::tFHSPtr, and remove the #include tisudshl.h, then rebuild the solution for win32 it will run on 32-bit.
I was hoping you may have an idea as to what the problem may be? (I am using IC Imaging version 3.2)