Streaming Video in Remote Panel

Desired Functionality: Our laboratory uses LabVIEW 2011 to make science instrumentation such as digital microscopes, spectrometers, etc., available to college students to do remote laboratory assignments. We need to be able to choose a live video stream from a number of cameras and display it on a VI front panel that is being served up by the LabVIEW web server. We also need allow the users to pan/tilt or zoom the camera using the VI. The purpose of this video stream is to allow remote users of the VI to see what is going on in the laboratory in real time. The video must have low latency and be reasonably high resolution so there is no lag in viewing what is happening as the users control instruments and equipment in the laboratory.
Current Solution: We use a DataVideo SE-800 video switcher to take in the feeds from up to 4 Sony EVI-D70 cameras. The switcher can be controlled through LabVIEW in order to allow selection of one of the video feeds. The selected video is sent to a MOXA V-Port 461 streaming appliance. When the VI is loaded in a browser by a user, a piece of code placed in the html file uses JAVA to layer the video stream from the MOXA over top of the front panel. A cartoon showing this physical connectivity is attached as “Current Connectivity.pdf” The limitations of this are that JAVA introduces some additional complexity and also is a potential security risk.
Desired Solution: We would like to display the live video feed directly in the Remote Panel, without having to layer it with an external application. The use of the video switcher and video streamer are not requirements, although it is nice to pull the video from an IP address and it gives us more control over the quality and frame rate of the video stream using the MOXA. Also, the Sony camera model we are currently using is not a requirement – any pan/tilt/zoom controllable camera will do just as well, but must be high resolution, as these cameras are. So, if there was a way to connect 1 to 4 cameras directly to the LabVIEW server and select a video feed from any one of them to display in the front panel of the VI, that would be fine.
Attachments:
Current Connectivity.pdf ‏63 KB

Hi danbranan,
Have you attempted to write any code in LabVIEW for this yet? I've included a couple of links below that might help. One is a forum thread talking about how to stream video in a remote panel. The second is an overview of Remote Panels. Using Remote Panel may not be fast enough to get the quality that you want due to throughput limitations of Remote Panels.
How to streaming video in remote panel:
http://forums.ni.com/t5/LabVIEW/How-to-streaming-video-in-remote-panel/td-p/758512
Remote Panels in LabVIEW:
http://www.ni.com/white-paper/4791/en
Hope this helps!
Robert B
Applications Engineer
National Instruments

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Paul Falkenstein
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== URL of affected sites ==
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I've set everything else up but cannot figure out how to display my laptop screen onto my TV.
As Keithjammer indicates, the TV2 does not "mirror" your screen as the platform's video interface does. Instead, the TV2 device is a wired/wireless remote multimedia player. As such, it only plays files in a compatible compression format. To do what you want it to do would require your platform to first compress the screen audio/video data to a compatible format and then stream it to the device in real time.
I've set everything else up but cannot figure out how to display my laptop screen onto my TV.
Yes, only files can be streamed. You can, of course, capture your screen audio and video data to a compatible file and then stream the file to the TV2 device.
...except from both London Drugs (where I purchased it) and Best Buy (where I double checked).
"Did you get that in writing?"

Streaming Video in Presenter and ConnectPro Meetings

RefinedVIDEO FLV PLAYER for Adobe Presenter
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RefinedVideo is an Adobe Presenter Add-In that allows you to
deliver high-quality, streaming video of unlimited length in your
web-based Adobe Presenter slide shows, in Adobe ConnectPro Meetings
and even in recorded meetings.
The software from Refined Data Solutions Inc. (an authorized
Adobe Connect reseller), is a combination SWF module that you
simply add to each slide in your presentation that requires video,
plus a web service that will retrieve and play your video files for
you on demand.
RefinedVideo offers the following features:
1) Play video content of unlimited length from any slide in
a Presenter file.
2) Use the latest high-quality On2 VP6 compresion codec for
better performance.
3) Your video streams instantly with little or no buffering.
4) Play video of any size - even fullscreen - in a
chromeless window.
5) Full control over playback options such as resizable
windows, toolbars etc.
6) Works in self-paced presentations, ConnectPro Meetings
and recordings.
7) Works in all major browsers including tabbed browsers.
8) Play the entire video clip or specify start and stop
points for playback.
9) Use start and stop points in review slides/quizzes
without using multiple clips.
10) Optionally overlay any video with subtitles in unlimited
languages.
11) No limits on content length. Play feature length movie
content if required.
12) Limit access to your content based on the IP address of
the viewer.
13) Optional loading of web sites within a chromeless window
for directed browsing.
14) Video can be hosted anywhere on the web rather than
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video content over & over.
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RefinedVideo is a complete solution for incorporating video
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If you currently use Presenter then you already know that it
has some serious limitations when it comes to using video. Slide
based video must be in SWF format encoded using the old Sorenson
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start playing. This leads to long wait times for users; want to
play a 5 minute video? Expect a 2-3 wait time while the movie
loads. Forget longer content like training videos.
The video's dimensions are also limited as quality degrades
quickly at large sizes.
Adobe will tell you to put streaming flash video in the
presenter panel but this area is tiny and still uses the old codec.
You cannot pause, rewind and fast-forward the content and what
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If you update your presentation frequently, expect long wait
times as the video files are embedded and must be uploaded to the
server each time you make a change.
THE SOLUTION
=============
RefinedVideo is a complete solution to these issues as it
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View a demonstration presentation at
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When you download the trial, you get everything you need,
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the configuration file that you can edit in Notepad or any other
text editor, a sample presentation and complete instructions.
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GETTING STARTED
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Dowload the trial from
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and unpack the files to your hard drive. Edit refinedvideo.xml in
Notepad or your choice of text editor to set your default values.
All instructions on how to use the product are contained in the XML
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Add the XML file as an attachment to your presentation and
insert the SWF file refinedvideo.swf to each slide that should play
video. Publish as normal.
Have questions? Feel free to contact me or Skype "terryshane"
All the Best,
Terry

Ahh, if only that were entirely true!
While you're correct that you can embed flash in your
Presenter files, it's still not possible to use the latest On2 VP6
codecs which is what you need to do if you want high quality large
size video files. Using the Sorenson codec which is what would be
required by your suggestion, means that the video tends to be quite
pixillated and limited to a small frame size, otherwise you end up
with lots of buffering delays.
Our solution allows you to run fullscreen video of unlimited
length from within Presenter and it works in self-paced
presentations and meeting room environments too.
On the issue of posting information about a product on a
Forum, my understanding of the concept of a forum is that it's a
place for the exchange of ideas and solutions. This forum is
located under the menu item of "Communities" on the Adobe site and
many people come here looking for ways to solve problems and
exchange ideas.
I've had numerous people contact me saying they have been
looking for exactly this type of solution but have been unable to
find it. It's only spam to you because you have no need for the
solution but to those looking for a way to deliver specific types
of training content, it's exactly what they came to the Forum to
find.
It's not my intent to offend, only to raise awareness.
Thanks for listening,
Terry

File Dialog's using Remote Panels (via web server)

I am aware that the web server remote panel access will not allow us to open a file dialog box on a remote computer. I have read people comment that you should create your own file dialog box, using LabVIEW to use instead of the file dialog box.
Has anyone actually done this? I would like know if anybody has source code for this, rather than re-inventing the wheel. Also, will the sub-vi actually just appear on the webserver? i.e. will it actually work?
Thanks for any help
Slade

Hi Emilie,
I have a program that I run on an industrial PC, with no keyboard, video or mouse. We currently control the application using the web server. We have a button to load and a button to save settings. If the files are missing for the load & save, it pops up a file open dialog to choose the file to import. However, while we are viewing the page this way, these dialog boxes do not work.
I would like to know if anyone has made up a file dialog box that I could use, that would display correctly in the web server's remote control.
Regards,
Slade

Need Help Streaming Video From Web Server Built Into Application - Linksys WRT54g Router

Very much appreciate any help getting streaming video feed from web server built into video application to work properly using port forwarding on my Linksys WRT54g wireless router.
Here is the situation:
My PC is connected to the internet via a Linksys WRT54g wireless router.
The Windows XP Pro SP2 firewall is enabled, with a firewall exception established for the video camera application.
On the router, forwarding of port 80 is enabled for the LAN IP address of the PC running the video application with an embedded web server, and the web server in the video camera application is also set to use port 80.
I have a free DYNDNS account and also run the DYNDNS updater program on the PC running the video application with embedded web server. According to the DYNDNS web site and the DYNDNS updater program, the IP address assigned to the machine running the video application with embedded web server is set correctly in my dyndns account.
When I open a browser (Explorer or Firefox) on the PC running the video camera application with embedded web server, I am able to connect to the video application's web server by going to the dyndns address linked to the machine running the video application. The video application's web server is set to use the dyndns address. That's the good news. The bad news is that I can't connect to the video application's web server from any machine that connects to the internet that uses a router other than the router used by the PC running the video application. I am only able to connect to the streaming video from the application's web server only on machines that connect to the internet using the same (home) router used by the PC that is running the video application.
Since I am able to connect to the video app's embedded web server successfully on the machine running the video application, it seems that at least something about the current port forwarding settings is correct. For example, if I uncheck 'enable' for forwarding of port 80 on the router settings page, I am no longer able to connect to the video app's web server when I try to do so in a browser running on the machine running the video app. When I re-enable port 80 forwarding on the router, I am again able to connect to the web server of the video application on the machine running the video app. I thought that by enabling forwarding of port 80 on the router and associating that port with the LAN IP of the machine running the video application, it would be possible to connect to the streaming video of the video app's embedded web server from ANY machine connected to the internet, but that is not the case. There must be some other router settings to update/change in order to get the port forwarding working to enable a successful connection to the video web server, but I am stumped. Very grateful for any suggestions as to how to get this working properly.
Thanks in advance...

The firewall log can be configured on the third tab in the window for the firewall settings, where you can turn the firewall on and off completely.
From your tests, though, it does not seem to be the firewall. However, to be sure, it would be good to check the log. It will help to eliminate the firewall as the culprit and you may find it handy in the future, too. ;-) Just don't forget to turn the log off again after you are done because it may cause some performance penalty on your system while on.
From what you write, it seems as if I should give a little networking background on the ip addresses you'll see. Your setup is (or should be) a modem connected to the WAN/Internet port of the WRT. The computer is connected into a LAN port of the WRT.
Your router has two IP addresses (that's what makes it a router): a WAN address and a LAN address. The WAN address is the address assigned by the ISP. It is a normal internet IP address. Everyone is able to send packets to this IP address. The WAN address is the one reported by whatismyipaddress.com, it should be listed in the dyndns record and it is the address that your router shows on the Status page. It's the public IP address of your router. Dyndns maps your dyndns.org name to that IP address.
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ipconfig /all reports your IP address in your LAN, i.e. an address 192.168.1.*. The gateway in this output should be 192.168.1.1 which is your router. And packet no in the LAN address range 192.168.1.* is send to the router which forwards the packets into the internet.
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O.K. so much for networking. I hope that makes things a little clearer and you can verify that your setup is how it is intended to be.
I suggest the following: on the router's security page there is an option to block WAN requests. Remove the check if it is set (meaning: do not block). After you did that change you should be able to ping your WAN address (e.g. ping xxxx.dyndns.org) from the internet. That way we know that it is on the correct address.
Also on the Administration page make sure that remote management is disabled (should be like that per default) or that the management port is NOT 80 but for example 8080. What is your your UPnP settings on the same page?
O.K. that should be enough for the moment...

Safari will not play streaming video or audio

Hi everyone,
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Hi
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Hello,
Can I stream video (through WebCam) and audio (through Mic) in Applets?
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Hello,
Can I stream video (through WebCam) and audio (through
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After many hours of trying everything I could think of, IE showed the video . I shut it down and tried Firefox.... no go. Tried IE again.... no go.
It's a left-wing conspiracy!

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Open System Preferences/QuickTime
Click the 'Streaming' tab
Set the speed to one slower than your network connection
Check 'Enable Instant on'
Drag the slider 2-3 notches from the left
Click the 'Browser' tab
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Slide the size selector all the way to the right
Click 'Empty Download cache'
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List of devices that support streaming video?

Does anyone know of a list that details which devices support
streaming video under Flash Lite 2, and ideally what codecs they
support?
I was excited to see Flash Lite 2.1 support for Windows
Mobile, but my T-Mobile SDA doesn't support streaming video through
FL2.

I have a related issue with my T3030 system. The loudspeakers still work fine but the remote volume control cable has a problem, probably a broken lead or faulty contact as in the beginning the sound went away on and off and by twiggling the cable it came back. Now it's completely dead but the green LED still comes on. I went to several CL shops and nobody could help me except to offer me buy a new system but I don't want to do that! So does anyone if I can order the volume control cable separately? Maybe the newer system such as the T300 have the same cable?
Thank you
Johan

Won't load streaming videos.

Ok.. Youtube works, but other websites that stream videos on websites like Viddler and the like WILL NOT load at all. I just get the gear loading symbol and nothing happens. Sometimes if I leave the page the video will show right before I leave.
I've done things said in these 2 threads I found so far.
http://discussions.info.apple.com/message.jspa?messageID=10947103
http://discussions.apple.com/thread.jspa?threadID=2460166&tstart=0
I saw that I had the 10.5.8 Version of Mac OS X so I'm updating to v. 10.6.4 as we speak.
But i've been trying everything the last 2 hours and nothing has worked at all.
Any suggestions?

HI,
Might be a good idea at this point to boot from your install disc and run Disk Utility especially since two browsers are involved and you've tried uninstalling and reinstalling Flash.
Insert your install disk and Restart, holding down the "C" key until grey Apple appears.
Go to Installer menu and launch Disk Utility.
(In Mac OS X 10.4 or later, you must select your language first from the installer menu)
Select your HDD (manufacturer ID) in the left panel.
Select First Aid in the Main panel.
(Check S.M.A.R.T Status of HDD at the bottom of right panel. It should say: Verified)
Click Repair Disk on the bottom right.
If DU reports disk does not need repairs quit DU and restart.
If DU reports errors Repair again and again until DU reports disk is repaired.
When you are finished with DU, from the Menu Bar, select Utilities/Startup Manager.
Select your start up disk and click Restart
While you have the Disk Utility window open, look at the bottom of the window. Where you see Capacity and Available. *Make sure there is always 15% free space.*
Snow Leopard tech specs available here. http://www.apple.com/macosx/specs.html
Carolyn

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So, for the past week or three I've been having some problems with Safari on my Old Macbook Pro, namely that when I'm trying to watch streaming video it'll freeze up. But not always. And it's only the video that freezes, not the sound. That'll play fine, but I'll only get a still image. At first I thought it was Hulu, but it's been happening on quite a number of video sites. So... yeah.
Has anyone else had this problem, and if so, what did you do to fix it? Is there an update I need?

HI,
You need to uninstall the version of Flash Player plugin you have and reinstall a new copy.
Go here to uninstall Flash.
http://kb2.adobe.com/cps/141/tn_14157.html
When you are finished uninstalling the old Flash plugin, go here and install a fresh copy
of Flash Player plugin.
http://get.adobe.com/flashplayer/otherversions/
As with any software installations, repair disk permissions.
Quit any open applications/programs. Launch Disk Utility. (Applications/Utilities) Select MacintoshHD in the panel on the left, select the FirstAid tab. Click: Repair Disk Permissions. When it's finished from the Menu Bar, Quit Disk Utility and restart your Mac. If you see a long list of "messages" in the permissions window, it's ok. That can be ignored. As long as you see, "Permissions Repair Complete" when it's finished... you're done. Quit Disk Utility and restart your Mac.
Carolyn
Message was edited by: Carolyn Samit

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