Hi Marut,
I think that you need to change the camera only,
Some USB camera devices may not support for uvccapture,
Anyway, I able to build mplayer successfully,
So, You can use that,
http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/328619.aspx
Through mplayer , you can play the video file, streaming , video creating and taking screen shots etc.,