A semi-complete Linux port of jsmpeg-vnc.
Install the following packages:
- build-essential
- libx11-dev
- libx11-dev
- libavutil-dev
- libavcodec-dev
- libswscale-dev
- libxtst-dev
- libssl-dev
- pkg-config
- zlib1g-dev
In addition to this, compile and install libwebsockets 4.1.
Then, run the following commands in the root directory:
cmake .
make
See the Dockerfile for an example on how to install the dependencies, compile libwebsockets, and compile jsmpeg-vnc-linux (it won't run out-of-the-box in Docker though, as there is nothing to stream).
jsmpeg-vnc [options] <window name>
Options:
-b bitrate in kilobit/s (default: estimated by output size)
-s output size as WxH. E.g: -s 640x480 (default: same as window size)
-f target framerate (default: 60)
-p port (default: 8080)
-c crop area in the captured window as X,Y,W,H. E.g.: -c 200,300,640,480
-i enable/disable remote input. E.g. -i 0 (default: 1)
Use "desktop" as the window name to capture the whole Desktop. Use "cursor"
to capture the window at the current cursor position.
Example:
jsmpeg-vnc -b 2000 -s 640x480 -f 30 -p 9006 "Quake 3: Arena"
To enable mouse lock in the browser (useful for games that require relative
mouse movements, not absolute ones), append "?mouselock" at the target URL
i.e: http://<server-ip>:8080/?mouselock
(Copied from the parent project)
For a project I was working on I needed a way to stream desktop applications to the web browser. I tried creating a video stream using ffmpeg, but I quickly discovered that support of live video streaming was rather poor using only <video> tags. For interaction with desktop applications, the latency was too high (after a long battle to get it working at all). I then discovered the project jsmpeg-vnc which suited my needs very well. By creating a video stream, sending it over a WebSocket, and rendering the video onto a canvas element using JavaScript control was given over the screen capturing and rendering. That way, the latency could be minimized and the framerate kept high.
Unfortunately, the jsmpeg-vnc project grabbed screen data using the Windows API. The project I was working on would be run on a Linux-based server. Thus, I ported the software to grab screen data using the X11 library instead.
Sharing the whole desktop.
Sharing individual application windows and areas around the cursor.
No windows appear with GNOME/Unity, only the wallpaper is shown. Works with LXDE though. (http://stackoverflow.com/questions/37972928/xgetimage-captures-wallpaper-but-no-windows-c-x11)