Multiple firewire cameras bandwidth calculation

Hi, all
I saw the table of the maximum packet size based on the camera speed:
Camera Speed
Maximum cumulative packet size
100 Mbps
1024 bytes
200 Mbps
2048 bytes
400 Mbps
4096 bytes
800 Mbps*
8192 bytes
I'm not clear with the calculation. If the camera speed is 100Mbps and the bus is divided into 125um cycles, one cycle is supposed to transfer 125um * 100Mbps = 1562 bytes data. Why the maximum packet size is limited to 1024 bytes? Does it mean the rest are occupied by other tasks, not only for data transfer? If so, the real bandwidth for data transfer is only about 70% bus and it's a great limit to my setup, 'coz I'm trying to plug 6 cameras in one PC with resolution 1624*1236 and frame rate 5fps set.
Thanks,
Olivia

Yes, only a certain around of the bandwidth on the bus can be reserved for he isochronous transfers that FireWire IIDC DCAM cameras use.
Another solution would be to consider adding a second FireWire card, since the bandwidth is limited per bus. You could also consider moving to a newer standard like GigE Vision or USB3 Vision, as the standards are a bit more flexible about bandwidth usage and also these have basically replaced FireWire in the machine vision market.

Similar Messages

Multiple Firewire Connections on a MAC PRO 2008

Wondering if anyone knows if there are any issues with multiple firewire inputs on a MAC PRO? I will be downloading film footage as well as running a Presonus Inspire for Voice-Overs which also uses a firewire connection to the computer.

The MacPro comes with 1 FW400 + 1 FW800 ports in the back and 1 FW400 + 1 FW800 ports in the front. They ALL share the same bus.
You may, or may not, have problems. Some devices play well with others and some don't. For example, AJA STRONGLY recommends you put the io devices on their own bus, canon cameras often will only work when they are on their own bus, and so on.
I've no idea whether your firewire audio device will conflict with your video tape playback device. If it was me, I could pursue this a couple of ways. 1, contact the audio people and get their recommendation or 2, give it a try and see if it works. If it doesn't, I'd purchase a PCIe firewire card and connect the bus hog to it.
Good luck,
x

Resource Allocation for IEEE 1394 (Firewire) Cameras in Triggered Mode

In this article:
Resource Allocation for IEEE 1394 (Firewire) Cameras in Triggered Mode
http://digital.ni.com/public.nsf/allkb/ED092614FCCC900D86256D8D004A3B0C
it says "The Bytes Per Packet value represents the number of bytes that are transmitted at consistent 125us intervals on the FireWire bus during image acquisition" and the reciprocal of the 125us value would seem to be the source of a value of 8000 in a subsequent formula used to calculate the frames per second.
Is this 125us value independent from the firewire bus speed or a function of it?
If it is a function of bus speed, how does it vary with speed?
(Is the 125us value for 400Mbps and 250us for 200Mbps?)
Thanks!

Hello Warren
Thank you very much for getting in touch with us. Although the Firewire standard itself is not technically supported by National Instruments, I will do my best to assist you. I am currently referencing the IEEE 1394 documentation. From what I'm reading, I do not believe the 125 microsecond value changes. I have copied and pasted the paragraph of interest under Bus Arbitration from a document that I referenced:
The arbitration mechanism gets more complicated when isochronous devices are connected on the bus, because those devices have already been guaranteed bandwidth. Each arbitration round is approximately 125μs long, so bandwidth is allocated as a portion of the 125μs interval. The root node broadcasts (sends a message to node 63, the broadcast address) a cycle start packet, which begins the arbitration round. All interested nodes send an arbitration request as before, and the winning node is still the node closest to the root. After .04μs of bus idle time, the remaining nodes arbitrate for control of the bus. Once each isochronous node has completed its transaction the time remaining in the 125μs interval is used for asynchronous transactions. Up to 80% of the bus bandwidth may be allocated to isochronous transactions and the remaining 20% is left available for asynchronous transactions.
The original document can be found here:
The FireWire Serial Bus and its Implementation
I, unfortunately, cannot claim to be an expert on the IEEE 1394 standard but from what I've researched, the 125 microsecond time allocation is standard and bandwidth is then allocated accordingly. I may recommend consulting IEEE 1394 Trade Association (http://www.1394ta.org/about/Contact.html) for more in depth information. Please let me know if this is sufficient or if I can be of further assistance. I will do everything I can to ensure that your issues is resolved.
Have a great day!
Sincerely,
Greg S.

How can I connect to a remote firewire camera?

We have a system that has the following peripherals connected to it:
1 - firewire camera
2 - serial port devices
2 - emulated serial port devices (on VCP USB drivers)
1 - Ethernet device
We have developed an application using CVI 8.1, NI Vision 8.6, and NI-IMAQdx 3.2 (it's an older cam). I would like to make this system accessible remotely (not remote desktop) and was looking for a way to program a server/client setup. Although it will be a lot of work, we can easily take care of a protocol for the Ethernet and serial devices. Where I'm getting stuck is the camera.
I've searched the forums and it seems that people can use the RT software module on specific host hardware to do just that. We don't want to invest in purchasing a separate software module or another piece of hardware, so I was wondering if it was possible to configure MAX or the NI vision server somehow to connect to a remote win7 PC to grab frames and configure the camera OR is there an easy way that I can transfer the stream over TCP/IP?
The only solution I can come up with is the grab a frame, save to .PNG, transmit it, and then load it on the client side. This seems very wasteful (and slow considering the harddrive will constantly buffer the data) and I would need to do a lot of encapsulation for changing camera settings, etc. Further, I'm not sure how well this would work for when we try to calibrate the camera with the IMAQ drivers. Is there a way to get the size and all relevant data structures in memory of the vision server so I can transfer them?
Finally, if there is a simple way of configuring and doing all of this for the camera that I'm missing (through MAX), then is there a similarly easy way of mapping the remote serial ports and of bridging the Ethernet data? I know there are a few pieces of existing software for the serial ports, but was looking to make a single software solution.
Thanks for taking the time!
-Stan

Hi Stan,
Welcome to the NI Discussion forums! Thanks for posting your application here. There certainly are more efficient ways of streaming IMAQ images over a network. One such method would be to convert the IMAQ image type to a 2D array and then pass the data through TCP/IP, as you eluded to. Do you have access to LabVIEW? If so, you can look at this community example and base your CVI code on it. Although it is meant for a Real-time CVS acting as the remote system, you should be able to run the code on a regular PC. If you don't have access to the LabVIEW development system, the overall code structure for the server system is as follows:
- Open IMAQdx reference, initiate a TCP connection, Create IMAQ image buffer
- Initialize an IMAQdx grab
- Loop:
- Call IMAQdx grab
- Use the IMAQ Flatten Image to String to convert the IMAQ image to a string
- Call TCP Write to send the string length first, then again to send the actual string data
- Dispose of the IMAQ image buffer, close the IMAQdx reference, close the TCP connection
On the client end, you just need to open the TCP connection and call TCP read to read the string size and then the string data. Then, you can use the unflatten from string function to convert the string back to an IMAQ image data type. After this, it is up to you how you want to process the data (display it on the screen, write to an AVI file, etc).
If you are not sure how to implement TCP/IP programs in CVI, please take a look at this tutorial. If you have more in-depth questions about implementing the TCP/IP side of the program in CVI, you may wish to post that specific question on the CVI board.
With regards to mapping the serial ports remotely, if you are already using NI-VISA for COM port communication, take a look at this document on Remote Instrument Control with NI-VISA. Essentially, you should be able to access the VISA resource (e.g. a COM port) remotely by enabling the remote NI-VISA server on the client machine. For more specific help with this aspect of your code, please post to the GPIB/VISA board.
Feel free to post again here if you have more IMAQ and vision-related questions. Hope this helps!

Firewire camera disappear after reboot

Hello all,
I've the following system configuration:
- 4 AVT guppy 033B firewire cameras (speed: 200 Mbps; Shutter: 250; trigger: mode0)
- Adlink SBC 852
- 1GB Ram
- CPU DUAL CORE E2200 socket 77
- firewire cable: 10 m
- firewire board: PCI dual ohci 1.1 IEEE-1394
- Windows SP2
Sequence of events:
1 - Fresh windows XP home edition installation
2 - Computer drivers
3 - Firewire cameras installation
4 - Our application installation
5 - testing. check if it's all ok
6 - Power off and wait some minutes
7 - turn on and test again
This steps where made in one day - all ok ..... In the next day:
8 - Turn on the system and check. And fine check of the system results.
9 - At 12:00 all seems to be ok and for delivering the system i decided to do one more test, rebooting the system.
10 - Error - cameras doesn't appear on MAX and had a controller exclamation mark on the device manager.
Solution:
11 - Update controller on device manager
12 - Open max and select again Imaqdx driver on the 4 cameras
So... I've a situation that after reboot may cause the cameras to disappear!
Any ideas?
Software developer
www.mcm-electronics.com
PS: Don't forget to rate a good anwser ; )
Currently using Labview 2011
PORTUGAL

Hello Jorge,
I suggest
you to re-install or Update to NI-IMAQ for IEEE 1394 Cameras Version 1.5.2 or
Later. If you are using NI-IMAQ for 1394 Cameras version 1.5.1 or
earlier, you may need to install a patch to update the NI-IMAQ for IEEE 1394
Cameras driver to version 1.5.3.
http://digital.ni.com/softlib.nsf/webcategories/85256410006C055586256BBB002C0D10?opendocument&node=1...
If it doesn't
solved the problem, try to update Windows XP to Service Pack 3 and upgrade to
the Manufactuer's Latest 1394 Driver.
Best regards.
.mesLeft{float:left} .mesInfo{border-left:solid 1px #989898;font-size:x-small;color:#989898} .mesLogo{float:right;opacity:0.18} .mesLogo:hover{opacity:0.9}
Maxime R.
  CLD - Certified LabVIEW Developer / Développeur LabVIEW Certifié
  CLAD - Certified LabVIEW Associate Developer

Copying iMovie back to tape: "your firewire camera is not powered on"

I'm trying to follow iMovie 6 instructions for copying a movie back to tape.
I connected my camcorder to the computer with the firewire cable, and it shows up in the Share-->Video Camera menu as an attached device. (It's a Canon Elura 100, btw.)
So all seems well until I start the procedure, and then I get a "Cannot Export to Camera" error message that says "your firewire camera is not powered on or is not available."
My ever so slow brain thinks this might have something to do with the fact that I'm using the DV/firewire cable that I used to import the footage into my iMac, and maybe it only sends stuff OUT the firewire end, and won't send video the other way?
Do I need a different kind of firewire cable?

Thanks for your assistance!
I bought this camcorder from Amazon.com (USA) and I have not daisy-chained it anywhere. I've only connected it to one device at a time. It is capable of receiving digital as well as analog video, and can convert analog to digital.
For example, I used my stereo-video cable to transfer footage from an old VHS tape played by our VCR to my Canon Elura camcorder via the Canon's AV terminal.
Once the tape was safely transferred into my Canon camcorder, I then plugged my DV/firewire cable into the Canon's DV terminal, and the firewire end of it into the iMac. iMovie saw the Canon camcorder and imported all the footage very nicely.
Now I would like to transfer the edited footage from iMovie back to a mini DV tape, and my iMovie help file says I can do it, but it's a little sketchy on what cables I should be using.
The firewire/DV cable I used to send the footage IN to iMovie isn't working to receive the edited footage OUT of iMovie. So maybe I need a different kind of firewire cable?
Thanks for any help you can offer!

Problem getting video from firewire camera

I've written a small app that gets video from camera and
publishes it through FMS(2). It works well with any USB webcams I
could find, but I have problems with firewire cameras. I can select
the camera in Flash settings, and getCamera() returns the
appropriate Camera object (e.g. it has the correct name, "Microsoft
DV Camera", which is what's its name in Windows), but I get
no/blank video.
Code snippet:
var myCam:Camera = Camera.getCamera();
Alert.show("Using " + myCam.name);
videoDisplay.attachCamera(myCam);
The same code and the same camera seems to work on OS X. I've
tried out two different firewire cameras on two different Windows
(XP) machines, and they consistently didn't work. They do work in
Flash Media Encoder (I'm not sure if it was written in Flash
engine), or other programs that do capture in Windows; but my
problem is that I need to inject metadata (stream.send()) into the
stream so i can't just use FME :(
Any ideas why this doesn't work? Do firewire cameras have
issues with flash/flex (for the reference, I'm using Flex2/Flash9)
on Windows XP, or am I doing something wrong here?
Senko

HI -
MPEG Streamclip does not act as a connection device between your camera and Final Cut.
It is a stand-alone application that converts the files from your camera into files that are useable in Final Cut.
The reason Final Cut does not "see" your camera directly is that the files are not usable in Final Cut - as recorded by the camera. Those same files are seen and imported in iMovie because iMovie is designed to support a wide variety of consumer formats, and converts them automatically on import to a format the iMovie can use. FCE does not have this feature for .mpg movie files. But the format the iMovie converts to is one that is not optimal for FCE.
Once you have converted the files that you want to use in MPEG Streamclip, you can store those converted files on your disk drive in a folder. Then open FCE an go to the menu File > Import > Files and navigate to where you have stored your converted files. Select them and the will be imported into FCE.
It is preferable to import using the MPEG Streamclip method, because the files that iMovie makes, are borderline usable in FCE, and if possible, should be avoided.
Hope this helps.
MTD

Isight firewire cam not working in iChat on Leopard.

After installing Leopard on my Powerbook G4 867 dvi, my Isight Firewire Cam is not working anymore
in Ichat on Leopard.
Any solutions, it worked fine under Tiger.
Isight firewire cam works fine wirh Skype, Amsn , Photobooth and Quicktime.

Alright. I've done quite a bit of testing now.
My system is (as stated below,) a 12" PowerBook G4, 867 MHz, 640 MB RAM, 40 GB hard drive, Combo drive, AirPort Extreme. It was purchased in Summer 2003, and while the OS has been reloaded, it hasn't been for a long time, and at present, the OS was an install of Jaguar that was upgraded to Panther to Tigard, finally to Leopard.
I was experiencing the issue mentioned. In my case, I use a FireWire miniDV camcorder for video in iChat. It has worked fine in the iChat AV beta in Jaguar, and iChat AV in Panther and Tiger.
Upon upgrading to Leopard, I get the "Slow Network" explanation for why I cannot use video (or hosting multiperson audio, or screen sharing.)
My research shows the following:
This occurs both on the upgraded install, and a fresh install. (To an external hard drive.)
Using Ecamm's PowerBoost allows me to use every option that isn't barred outright by lack of hardware (video effects.) This includes both "Slow Network" issues and "Insufficient CPU" issues (essentially just multiperson video.)
So my guess is that the "Slow Network" is indeed a "bug", and will be fixed by an update from Apple.

Using a non-firewire cam with quicktime broadcaster

I have this very nice ptz analogue video conferencing camera... worth about $2000 to tell the truth. I would love to be able to use it with quicktime broadcaster. The problem is the video output is S-video, not fire wire. Does anyone know of some sort of hardware adapter or something that can take the S-video signal and output it in such a way that will trick quicktime broadcaster into thinking that there is a firewire video cam connected?
any suggestions would be appreciated
G4 Dual Mac OS X (10.4.5)

I had thought of that but I am worried that i would shell out the money for one only to find out that Broadcaster doesn't recognize it. The documentation for Broadcaster claims that it requires a firewire camera. I am wondering if anyone has had any success or failure with this?
Not a QT Broadcaster user myself, but do have v1.5 installed on my G5. On reading your query, I tested it with an old, original (unstable stabilized) Dazzle Hollywood DV-Bridge and newer Canopus ADVC-300 converters. Both were correctly identified by name if properly connected when QT Broadcaster application is opened. And, although "hot-swapping" the converters did not cause any problems while QT Broadcaster is running, neither did it force the software to rescan and identify the "change" in hardware device.
For the purpose of the tests Nikon digital still cameras (990 and D-70) with analog video output and a Sony camcorder with analog and digital outputs (in both tape and throughput modes) were used as the source and the output was recorded/saved as a QT movie file by QT Broadcaster. While I could only get the D-70 to output singleframes (didn't take the time to look for the book), all other sources produced much better quality than expected using the default DV to QVGA/15fps settings -- even when using an old 1930's B&W movie as the taped source.
For what it's worth ...

Do I need to change Imaq Create VI or related VIs for a 1394a firewire camera?

I have a program to acquire images from a Zeiss axiocam MR2 that has a PCI framegrabber. Now I am trying to acquire images from one of their firewire cameras using the same program (while swapping the dll functions calls specific for the firewire camera) and it crashes every time I try to acquire an image, even while debugging in steps. Is there something intrinsically different with the firewire camera that I need to do differently? I create a 10 frame buffer with IMAQ create, set a ROI in the firewire camera (works no problem), create a pointer to the buffer, and then put the image into the buffer. No problems with the camera containing a framegrabber but the firewire camera crashes every time on acquisiton. Any ideas? Thanks

Ok. I can see that a firewire camera that doesn't conform to the DCAM spec won't work with the IMAQdx driver so I can't take that approach.
What I still am not understanding is why I can't create a buffer using IMAQ create that I can then place images into using the acquisition function supplied by Zeiss. It seems in the example below that in the case where IMAQdx is used to store images in a buffer using IMAQ create.
Then can you tell me why I can't use the following (or similar) code to snap images to the Image buffer or even a 1D array so long as I have a pointer, proper sized array to put the image data, and the array size?
Thanks for your patience while I try to wrap my head around this

Firewire cameras

I have a Dragonfly Express camera(Point Grey Research Inc) connected to
PCI card via IEEE-1394b cable. I should not need a driver to
controll the camera in labview as long as I have appropriate VI,
correct? I am looking for a library of example VI's, VI for firewire
cameras in particular.If there is no such a thing as the library of
example VI's, how do I get this thing to work? Should I look for the
driver or use I/O Instrument Assistant?
Thanks for the help.
Marek

If you look at How Can I Tell If My IEEE 1394 (Firewire) Camera Is Supported by the NI-IMAQ for 1394, you'll find some info on how to find out if your camera is supported.
There's also the Industrial Camera Advisor that may be of some help.
If your camera is supported, the IMAQ VIs will work with your camera.
Ed
Message Edited by Ed Dickens on 01-16-2007 02:11 PM
Ed Dickens - Certified LabVIEW Architect - DISTek Integration, Inc. - NI Certified Alliance Partner
Using the Abort button to stop your VI is like using a tree to stop your car. It works, but there may be consequences.

How do I access vertical mirror attribute for a firewire camera (imaqdx)

We have a camera which looks at an actual physical mirror but the image from the camera feeding into the application needs to be properly oriented as if the camera were looking at the object directly. I was hoping to use the vertical mirror attribute to set the image orientation in the imaqdx driver (this is a Fire-I firewire camera from unibrain) but I cannot find this setting exposed anywhere. Any hints on how to do this? Thanks in advance.
Solved!
Go to Solution.

Looks like a basic DLL wrapper for niimaqdxk.dll would be the simplest way to go. This could be done automatically for almost all DLL calls: http://www.codeproject.com/Articles/16541/Create-your-Proxy-DLLs-automatically
But the question is what data structures are passed between niimaqdxk.dll and niimaqdx.dll especially when it comes to video frames. So in other words the question is whether internal data structures for imaqdx are documented anywhere. I guess I will contact NI for support but I wonder if these resources are already posted. I am sure NI has a PDF somewhere, right?

Firewire camera not found in MAX on Windows 7

Hi all,
Used to run a firewire camera on Windows XP with no problems. Using version 8.6 and do not want to change this if at all possible. New lab PC runs windows 7 and firewire camera not found in NI MAX. The drivers associated with the camera are NI-IMAQdx IIDC...
NI-MAX does not even show a NI-IMAQdx camera and there is no way to add such a camera. The same issue arises for an AVT Guppy camera suggesting it is not camera dependent.
Has anyone any suggestions as how to rectify this. We have full development software v8.6 with all the appropriate drivers and modules required as it previously ran problem free on an XP machine.
Cheers,
leeser

Hi Leeser,
Which version of the driver did you previously have installed under Windows XP? It would be worth trying to re-install the latest version of the NI-IMAQdx driver. You will be able to install the Vision Acquisition Software 08.2010, which works with LabVIEW 8.5 and later (and installs NI-IMAQdx 3.7).
Regards,
Imtiaz Chowdhury
Head of Digital Technologies
Brand786

Presenter 8 crashes after connecting external Firewire cam

Good day,
We often organize workshops and conferences which I sometimes record with an external camera for later reference by our own staff or to make them available to clients who couldn't attend the presentations.
For a long time I was looking for a tool to synchronise PowerPoint slides with spoken recorded comment (audio/video), since I don't believe in just making slides available to people who couldn't attend the presentation, without the spoken comments of the speaker.
I also believe in slides with as less text as possible, but more with images, schemes and animations to support the speaker's message. But in such a case, the spoken comment is an essential part of the presentation to get the message, since the slides as-such alone don't tell enough.
I installed the trial version of Adobe Presenter 8 to test its suitability for our company marketing and presentation needs.
Adobe Presenter 8 seems to work perfect to synchronise Powerpoint slides and screen actions, together with video recorded by an external webcam, connected via USB to my notebook or via the internal webcam in my notebook.
However, I also want to record presentations, presented in our auditorium and meeting rooms and I want to synchronise in realtime (= during the actual presentation) the Powerpoint slides together with the video/audio from the speaker. The realtime option avoids the work of recording the speaker on tape or in an MPG or FLV during the actual presentation, uploading the A/V file to my PC and doing the PowerPoint/audio/video synchronisation work afterwards by going through the whole presentation again.
To record the video I therefore use an external semi-pro videocamera (JVC DV-500), since this gives me better possibilities to frame the right image, zoom in/out, better lens, etc ... in comparison with an ordinary webcam. The JVC DV-500 can be connected to a computer via a Firewire I/F.
This always worked perfect when we recorded and streamed video/audio using Adobe Flash Media Live Encoder 3.2. Adobe Flash Encoder recognizes the via FireWire connected external cam without a problem.
But, when using Adobe Presenter 8 within PowerPoint 2010 to start recording a presentation, and when I switch on the power switch on the external JVC-cam, Adobe Presenter 8 crashes, showing an error "Application encountered an internal error ... report to product support forums, etc ..." and "Adobe-Pr-VC.exe doesn't work anymore", and creating some error log and dump-files on my notebook.
After switching off the external cam and keeping it switched off, and manually deleting in Task Manager still running instances of Presenter-software (Adobe_Pr_VC.exe), and restarting PowerPoint, everything works well again with the USB or internal webcam.
Already deleted Presenter from my notebook, cleaned up registry with CCleaner, reinstalled Presenter, but error keeps on coming back.
Someone any ideas what causes this error?
Software conflict, driver conflict, Adobe Presenter incompatible with external A/V devices, no support of FireWire I/F, ... ?
Configuration:
Fujitsu notebook LifeBook T5010
Windows 7 Pro SP1 32-bit (Dutch version)
Microsoft Office 2010 Pro Plus (Dutch version)
Creative webcam connected via USB
External JVC DV-500 videocamera connected via build-in Firewire I/F
Firewire driver was installed by Windows automatically when connecting the cam (msdv.sys 6.1.7600.16385)
The only other real-time encoding software installed is Adobe Flash Media Live encoder 3.2.
Some other usual Adobe stuff (flash player, shockwave player, AIR, reader X, )
The possibility of connecting an external cam to record the speaker and synchronise the PowerPoint and/or screen actions in realtime, would greatly enhance our work.
Thanks,
Patrick ROTEN
Marketing dept.
CIPAL DV (Belgium)

Hi,
started Presenter's Video Creator in troubleshoot mode with external Firewire connected cam switched off.
1. Video Creator started in troubleshoot mode (got the 'troubleshoot' message)
2. default active cam was the USB webcam (HD screen, SD cam)
3. started recording
4. everything worked normal
5. stopped recording
Result looked fine. Got the normal troubleshoot message, asking to send log files. Did not do this, since there was no error at this time.
Then repeated the process with exteral FireWire cam.
1. Video Creator started in troubleshoot mode
2. default active cam was the USB webcam (HD screen, SD cam)
3. powered on external JVC camera connected to the notebook via FireWire
4. Video Creator crashed after windows detected (beep sound) an active appliance on the FireWire port.
Could not even stop recording with Video Creator in a normal way to go to the "send error log to Adobe" procedure.
Instead got a box with the message: "Applications encountered an internal error. If the problem persists, please report on product support forums or contact the support team."
Had to shut down Adobe_Pr_VC.exe manually in Task Manager.
Tried the same procedure with another FireWire appliance, a DV video recorder with a tape of a previously recorded conference session.
Same error, as soon as I powered on the videorecorder, and Windows detected (beep sound) an active appliance on the FireWire port, Video Creator crashed with the same error message as above.
I can't go through the whole workflow to send the error logs to Adobe, since Video Creator crashes from the moment the power of a FireWire appliance is switched on.
No possibility to stop recording in a normal way (SHIFT-END or clicking the icon in system tray).
Had to manually shut down Adobe_Pr_VC.exe in Task Manager again.
Tried again with Adobe Flash Media Live Encorder 3.2 to see how this application reacts, to be sure there is nothing wrong with my notebook or the Windows O/S.
1. started Flash Media Encoder with external FireWire cam switched off
2. saw 2 active devices : build in Sirius webcam and external USB Creative webcam
3. saw image of my webcam in the encoder monitor windows
4. switched on power on external JVC camera, connected via FireWire
5. Flash Media Encoder immediatelly recognized "Microsoft DV Camera and VCR". Selected this and image of external cam was shown in the encoder monitor windows.
6. Could stream FireWire cam image to an external streaming service without a problem.
Conclusion: a FireWire connected cam does work with other Adobe software. Must be something wrong in the Video Creator software.
Sorry I can't send you the log files, since app in both normal and troubleshoot mode crashes prematurely.
Hope my explanation helps you a bit to find a solution.
Regards,
Patrick

There is some tool in labview to control a FireWire camera without any hardware?

I have a Thorlabs FireWire camera and I want it to control with LabView. I have the complete version of the LabView 8.2 proffesional edition. Well I don't want to buy more hardware so I need a tool included in the LabView proffesional system.
Thank you for your support

Hi Lamas,
The Vision Acquisition Software is not included in the LabVIEW packages. If you are looking to acquire, save and display images using IEEE 1394 cameras (Firewire), you will need the NI Vision Acquisition Software and if you need image processing functions and display tools, I recommend having a look at NI Vision Development Module.
Best Regards,
CLA | LabVIEW 7.1... 2013
www.renishaw.com

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