Bash script that creates a small HTTP server to broadcast screen and sound from Linux.
- Recent
bashversion ffmpegwith x11grab+alsa input devices and libx264+aac codecsncat(orsocatortcpserverorsocket)- (optionally)
pavucontrol - On the client side: web browser which supports Media Source Extensions with h264 and aac codecs
- Start
screencapture.shwith or without options- Example :
./screencapture.sh -v --port 1234 --videoscale 0.75
- Example :
- (optionally) Open
pavucontrol, go toRecordingtab, find the line with ffmpeg and set audio capture toMonitor of [...] - On the client side, open
http://IP:PORT/in a web browser, whereIPis the server IP andPORTis the default server port (8080) or the port specified using the appropriate command-line option - To stop
screencapture.sh, pressCTRL+Cin the terminal window or send aSIGINTto the process
Default values are used for parameters that are not specified via command-line options.
-p, --port port Valid source port number for HTTP server
-n, --displayname name Display name in the form hostname:displaynumber.screennumber
-o, --captureorigin position Capture origin in the form X,Y (e.g. 208,254)
-c, --capturesize dimensions Capture size in the form WxH (e.g. 640x480)
-s, --soundserver name Sound server to use ("alsa", "pulse", "openal", "oss", "sndio", ...)
-a, --audiodevice device Audio input device
-d, --audiodelay seconds Sound delay in seconds (e.g. 0.22)
-e, --videoscale scale Output image scale factor (e.g. 0.75)
-f, --framerate number Output video frames per second (whole number)
-b, --targetbitrate size Output video target bitrate (e.g. 3M)
-m, --maxbitrate size Output video maximum bitrate (e.g. 4M)
-B, --buffersize size Video bitrate controler buffer size (e.g. 8M)
-D, --segmentduration seconds Duration of each segment file (in whole seconds)
-M, --maxsegments number Maximum amount of old files kept for each stream (audio and video)
-t, --tempdir directory Custom directory for temporary files
-v, --verbose Show ffmpeg's verbose output
-?, --help Print this help