gorango/screencast.md

## screencast.md

      
    Raw
  

              screencast.md
            
          
    Linux screen capture

Uses CVLC (command-line VLC) to record an ongoing screen session in Linux.
Requires VLC to be installed.
Usage

To save a new video file in the current folder:
$ screencast

To save a new video file in a new/existing folder foo:
$ screencast -d foo # -d or --directory

New files will be named screencast-<year><month><day><hour><minute>.mp4
Important

In order to finish recording and save the video file, enter quit in the original console.
Do not close with ctrl-c as it can corrupt the file!
Notes


Doesn't display cursor in output

There is a way to provide a custom PNG to overlay cursor movements

BUT! Cursor won't change as it does on usual interactive elements (text, buttons, etc)


Apparent lag in final output

FPS flag doesn't seem to change the output framerate


## screencast.sh
#!/bin/bash

#
# Usage:
# -------------------------------------------------------
# `screencast`
#   saves video file in the current folder
# `screencast -d foo`
#   saves video file in the 'foo' folder (creates folder if none exists)
#
# TERMINATE BY ENTERING `quit` INTO THE RUNNING TERMINAL
#
# DO NOT CLOSE WITH `Ctrl-C` -- CAN CAUSE CORRUPTION !!!
#

DATE=$(date +%y%m%d%H%M)
NAME="screencast-$DATE"
FILE="$NAME"

while [[ $# > 1 ]]
do
key="$1"

case $key in
    -d|--directory)
    DIR="$2"
    FILE="$DIR/$NAME"
    $(mkdir -p $DIR)
    shift;;
    *)
esac
shift
done

cvlc screen:// \
-I rc \
--screen-follow-mouse \
--screen-fps 5 \
:sout="#transcode{vcodec=h264,vb=800,fps=5,scale=1,acodec=none}:duplicate{dst=std{access=file,mux=mp4,dst=$FILE}}"
	#!/bin/bash

	#
	# Usage:
	# -------------------------------------------------------
	# `screencast`
	# saves video file in the current folder
	# `screencast -d foo`
	# saves video file in the 'foo' folder (creates folder if none exists)
	#
	# TERMINATE BY ENTERING `quit` INTO THE RUNNING TERMINAL
	#
	# DO NOT CLOSE WITH `Ctrl-C` -- CAN CAUSE CORRUPTION !!!
	#

	DATE=$(date +%y%m%d%H%M)
	NAME="screencast-$DATE"
	FILE="$NAME"

	while [[ $# > 1 ]]
	do
	key="$1"

	case $key in
	-d\|--directory)
	DIR="$2"
	FILE="$DIR/$NAME"
	$(mkdir -p $DIR)
	shift;;
	*)
	esac
	shift
	done

	cvlc screen:// \
	-I rc \
	--screen-follow-mouse \
	--screen-fps 5 \
	:sout="#transcode{vcodec=h264,vb=800,fps=5,scale=1,acodec=none}:duplicate{dst=std{access=file,mux=mp4,dst=$FILE}}"