I would suggest going to market place (ThingWorx IoT Marketplace) and you will find few extension like html5-video .
This extension offers the ability to playback video files in a standard way across devices, using the HTML5 video tag.
You can check other available Widgets and Extension , Please check and let us know if this is what you are looking for .
Thanks Ravi, for the reply.
Actually I am looking for something different. My need is to have a "Live Video Conferencing" facility in ThingWorx mashup.
Is it possible?
Per my understanding and knowledge This facility " Live Video Conferencing " in not available in Thingworx.
For this you might need to develop your own extension capable of providing Live Video conferencing and then importing it to use .