I think this is not a programming question but I'm not sure where to ask.
I have an RTSP video stream which I would like to receive and write down to a video file while it transmits.
I have found several servers which allow to re-stream such an RTSP stream but I have not found anything which would allow me to write down a video file as I receive it. Something like they have in the Bambuser even more preferably, free.
Could someone, please, advise something to achieve that?
Edited just to be more clear:
I want to be able to turn on/off recording when, say, I see something interesting in the video. So my use case is: user sits before the screen, watches the live video from, say, ip-camera, and, when he sees something of interest he starts recording that particular fragment, then stops recording. No further editing is needed. So I wonder if there is any software for that or any library with which I can build it