vlc part of desktop streaming to <host>:<port> via UDP

[Aubin]

With VLC, I wish to stream a portion of the desktop and send it to another host on a local area network.

The capture seems to work, I see a correct portion of the desktop into the VLC server:


Wireshark running in promiscuous mode on the client shows that nothing is sent by the server (filter is ip.src==192.168.1.31 && udp.port==2416).

Here are my batch files:

Server.bat

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vlc -vvv screen:// :screen-fps=25 :screen-top=12 :screen-left=4 :screen-width=320 :screen-height=200 --sout=#transcode{acodec=none}:duplicate{dst=std{access=udp{ttl=1},dst=192.168.1.7:2416},dst=display} --sout-keep

Client.bat

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vlc udp://:2416

[ibstars]

Try using 2 versions of vlc players, that way u define the client and the server. With one player is a bit confusing.

[Rémi Denis-Courmont]

Look at the VLC logs. Most probably missing a muxer.

[Aubin]

@IBstars: I've edited my post to clarify the usage: two instances of VLC are launched and two batch files are used, client and server.

@Rémi Denis-Courmont: They're no log in binaries directory, where are they?

[ibstars]

I have managed to do what you are looking for but it differs from your idea.

[ibstars]

Ok this works, only to show you what i did. You can experiment with it.

Open vlc, go to Tools + Preferences + show settings all + stream output. On stream output paste this

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#transcode{vb=450,width=480,vcodec=h264,deinterlace,samplerate=44100}:duplicate{dst=std{access=http{mime=video/x-flv},mux=ffmpeg{mux=flv},dst=/mediaplayer/stream.flv},dst=none}

And click save.
Now go to media , open network stream + captured devices, on capture node select desktop, and click play.
To be able to view the stream , you need wamp server.
Once you install the wamp server, you can access your stream by typing this http://localhost:8080/mediaplayer/stream.flv

This works on local network, but for the outside world you need the domain name and port 80, 8080 to be port forwarded so they can see it and the index page with the embed code.The embed is preety easy!!

[Aubin]

No, this is not the solution I expect.
I wish to use UDP, not a web server, I want to keep it simple.
One send UDP datagrams, other receives it, that's all.

[ibstars]

No, this is not the solution I expect.
I wish to use UDP, not a web server, I want to keep it simple.
One send UDP datagrams, other receives it, that's all.

So you want this to be on local network only.

[Aubin]

Yes, LAN only.

[Aubin]

Finally, after a lot of tests, I've discovered I need an encoder for screen source:

vlcServer.bat

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@start /MIN "" "C:\Program Files (x86)\VideoLAN\VLC\vlc.exe" ^ -vvv screen:// :screen-fps=5 :screen-top=545 :screen-left=232 :screen-width=250 :screen-height=120 ^ --sout=#transcode{vcodec=h264,acodec=none}:rtp{dst=192.168.1.31,port=5004,mux=ts,ttl=1} :sout-keep

vlcClient.bat

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@start /MIN "" "C:\Program Files (x86)\VideoLAN\VLC\vlc.exe" rtp://:5004

As you can see, the encoder used is H264 for the video, none for the audio.

And now, I've a performance issue... because the observed frame rate is very, very, low!

[ibstars]

Remove the fps.

[Aubin]

Without ":screen-fps=24 " nothing is displayed, with ":screen-fps=24 ", the video is pretty good but a 3s latency is observed.

[ibstars]

Ignore this

[ibstars]

Your code is ok.
Latency will always exist!

By the way, i used port 1234.

[ibstars]

@Aubin - I was just wondering, is it possible to get the audio out.
I mean while I'm streaming a part of my desktop can i play another video on and stream the sound and video together as part of the desktop.