GStreamer > rtsp > tcp dump > dissector > reaasembly > playable video file

[Nicolas Dufresne]

Le ven. 22 févr. 2019 04 h 27, darius <manta103g at gmail.com> a écrit :

> re:
> GStreamer > rtsp > tcp dump > dissector > reaasembly > playable video file
>
> Hi,
>
> I plan to install  a number of IP (Wifi) cameras supporting WiFi Direct
> (P2P)
>
> I can access a single IP camera from app run on Android tablet.
>
> Some claim, 4 wifi cameras can be connected to Android tablet to get quad
> video mode enabled.
>
> I would like to emulate WiDi Direct camera with GStreamer, as a proof of
> concept,
> if rtsp video stream can tcp dumped (saved to a file), processed
> (dissected), reassembled into video (file), animated gif, image frames, to
> be played back as video in VLC or other video player.
>
> My project aims at setting up a number of WiFi Direct cameras in outdoor,
> to
> let a driver on-the-goto watch a front and back of high/ her car while
> driving.
>
> As you know, a driver is banned to operate his tablet, smartphone while
> driving, for safety reasons.
>
> So an app run on Android's tablet, smartphone , should monitor WiFi
> traffic,
> select Wifi video stream from my WiFi Direct camera/s , save it as tcp
> dump,
> process, dissect, reassmbly and play back as a video, for just few seconds,
> while a driver is still in close proximity of such camera.
>
> Ok, WiFi Direct camera can support multicast, to let more drivers to access
> the same video stream, to be played on their smartphone, following:
> 1. WiFi pairing
> 2. Start video player app
> 3. Close video player app if signal from WiFi Direct camera is lost
>
> but if you drive a car, it takes time to execute the above operations, so
> video stream signal can be easily lost
>
> The same procedure should be repeated accessing another WiFi Direct camera
> (
> known by UID or SSID).
>
> Video stream from my cameras should bo open, public, not encrypted
>
> That way WiFi Direct camera can work as an old analog camera, multicasting
> video to unlimited of concurrent users.
>
> WiFi direct camera has a limit set on a number of concurrent users, so
> video
> access can be easily disrupted if a number of drivers park their cars while
> keeping connected to WiFi Direct camera match the limit and a new driver
> on-the-go can not be paired to the same camera.
>
> Some use a solution to power on/ power off a camera to log out long-time
> users, in a loop.
>
> But I don't have such option and it takes camera more than 10-20s to start
> video streaming again after power is back, making such solution not
> welcome.
>
> So my idea is to use GStreamer to emulate WiFi Direct camera
> and save rtsp video stream as tcp dump
> find a proper dissector ( none found with wireshark)
> and
> tcp reassembler
>
> to make things to work as planned.
>
> Please let me know your opinion.
>

I'm not saying I have followed everything here, but are you looking for
pcapparse element ?


>
>
> --
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