How can I capture the camera and start a 'live preview' on a little div on the on the page on mobile?
In the past I encountered some javascript web audio api that can allow you to create sound, manipulate them, start recording audio, buffer etc..
So I hope there is some similar solution also for the video stuff, so I could be able to start capturing video camera and pass data to the preview box on the screen
Here I found a link: http://mobilehtml5.org/ts/?id=23 that shows how to use <input type="file"> to access to mobile built-in microphone and camera, but I'm not sure if I am on the right way..
Any help and suggestion will be really much appreciated
Have you had a look at this html5rocks tutorial, it walks through the Javascript and markup necessary and shows a series of demos including how to apply CSS filters.
http://www.html5rocks.com/en/tutorials/getusermedia/intro/
I believe it has all you need.