VLC

[A123]

I troubleshooting reading data from my VI which is design with "multicast UDP read only open". The data I read is videostream and I want to run the stream in VLC. Is it possible? I have labview 8.1, try to use the Active X and insert VLC plugin. There is no option for initializing "open network stream", why is the option so limited? In addtion I try to reinstall VLC with active X, with no effect. Any suggestions??

A

[tst]

I don't have VLC installed, but I doubt its ActiveX component will allow you to feed an arbitrary streaming video feed into it. Most likely, you can mostly point it to standard streaming video files.

You can transfer any binary data you want using the LV UDP functions, but formatting it so that other applications can understand it would probably be quite hard. What are you actually trying to do?

[A123]

I am making a test program with the aim to test at least one multicast to check the services of a streamer input, and following  I have to test the the present of picture and audio for the spesific IP adresse. Are there any other options to be considered?

A

[tst]

I still don't understand what it is you're trying to do. Obviously, if you want to do a multicast you will need to use the UDP functions, but you have to generate binary data (represented as a string). Flattening and unflattening LV data is very easy, but interaction with other programs would be complicated. Perhaps if you explain your setup in more detail a suitable suggestion can be made.

[A123]

I will try to explain in more detail:

-I have a IP input card in a chassis with a switch and a decoder.

-I use a WEB Browser to go to the default IP adresse (active X and web browser) for viewing the GUI.

-I would like to test one multicast on the IP input page. To test if the video picture is present and audio working without erros automatically I want to use LVC or other alternatives.

A

[tst]

Which ActiveX control is used when you use the browser to see the page? What's the format of the streaming file?

I don't have any experience with doing this personally, but I would attempt looking at the HTML source to see the actual URL of the feed and then try providing that URL to an object in an ActiveX container (I would probably try Windows Media Player) and see if you can get data from the control (for example, WMP has a currentMedia property where you can see the duration and similar things). This doesn't let you access the actual audio or video information, but it might help.

Basically, you should probably look for an ActiveX control with the API to do what you want.

As another (probably better) option, does this card expose any kind of API for getting the feed?