How to get my webcam's RTSP/RTMP URL for streaming?

I am new to media streaming, starting with Wowza. I want to test live streaming fr开发者_JS百科om my webcam (on my Dell Inspiron 1545 laptop) to other devices. This tutorial from Wowza tells me :

enter your camera's RTSP URL and click Play

How/Where to get this URL ? Is it OS specific, or device specific ? Does a webcam by default provide a RTSP/RTMP stream, or I need to put some other code/application on my computer for this ?

Thanks !

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Web camera is just a video capture device, applications can acquire video/images from. RTSP/RTMP URLs assume that video, typically in encoded format, can be obtained via network, using either of the two protocols.

So there is a missing step between webcam and availability of URLs: you need an application which captures video from the web camera, encodes it and makes it available on network.