Screen Record

2024-09-04

3 minute read

linux , script

This script record the screen with the wf-recorder tool, it can be the hole screen or a specific area of it. The script is going to store the video in /tmp/screencast.mp4, this script only store one video, personally I think that have more than one record is a mess, more if you only wants to share a quick screencast to telegram, irc, cinny or even to share it through 0x0.st.

Description and main variables:

1# Created By: Javier Pacheco - javier@jpacheco.xyz
2# Created On: 29/03/24
3# Project: Screen recorder in wayland
4# Dependencies: wf-recorder wl-copy and a launcher like dmenu, fuzzel, etc.
5
6SOUND_CARD=$(pactl list sources | awk '/Name/ && /.monitor/ {print $2}')

Recording functions:

Those functions have enable the sound recording, so if you have some music, video, etc running it will record the sound but not the mic.

screencast:

This option is going to record a specific area of the screen. This area is going to be specified by slurp.

1screencast() {
2   wf-recorder --audio=$SOUND_CARD -f /tmp/screencast.mp4
3}

area:

This option is going to record a specific area of the screen. This area is going to be specified by slurp.

1area() {
2   wf-recorder --audio=$SOUND_CARD -g "$(slurp)" -f /tmp/screencast.mp4
3}

Main functions:

These functions are tools that ensures this script works correctly. For example if all ready have a existing file recorded, it will removed to record a new one, because this script only will create one video always, and also have a function to kill the process when it finished.

check internet connection:

1check_connection() {
2    ping -c 1 google.com 1> /dev/null 2>&1
3}

This option is going to upload the video to 0x0.st and copy the url to the clipboard using wc-copy.

1share() {
2   notify-send "uploading.." "video is upoading to 0x0.st"
3   curl -F "file=@/tmp/screencast.mp4" https://0x0.st | wl-copy && notify-send "Video stored in 0x0.st"
4}

Kill existing process:

1kill_proc(){
2    pkill --signal SIGINT wf-recorder
3    if [ $? -eq 0 ];
4    then
5        notify-send "Video stored" "Video was stored in /tmp/screencast.mp4"
6        pkill --signal SIGINT wf-recorder
7        exit 0
8    fi
9}

Remove existing video:

1remove_vid() {
2    [ -f /tmp/screencast.mp4 ] && rm /tmp/screencast.mp4
3}

Sequence:

This is were the scripts actually starts, first of all look if the script is already running, if not then ask for a recording option:

 1kill_proc
 2
 3OPT=$(printf "screencast\narea\nshare\nquit" | fuzzel --dmenu -p 'Select an option: ' )
 4case $OPT in
 5    'screencast')
 6        sleep 1
 7        remove_vid
 8        sleep 1
 9        screencast;;
10    'area')
11        sleep 1
12        remove_vid
13        sleep 1
14        area;;
15    'share')
16        check_connection && share || notify-send "Error" "check your internet connection" ;;
17    *|quit) exit 0;;
18esac

The whole code.

 1# Created By: Javier Pacheco - javier@jpacheco.xyz
 2# Created On: 29/03/24
 3# Project: Screen recorder in wayland
 4# Dependencies: wf-recorder wl-copy and a launcher like dmenu, fuzzel, etc.
 5
 6SOUND_CARD=$(pactl list sources | awk '/Name/ && /.monitor/ {print $2}')
 7
 8screencast() {
 9   wf-recorder --audio=$SOUND_CARD -f /tmp/screencast.mp4
10}
11
12area() {
13   wf-recorder --audio=$SOUND_CARD -g "$(slurp)" -f /tmp/screencast.mp4
14}
15
16check_connection() {
17    ping -c 1 google.com 1> /dev/null 2>&1
18}
19
20share() {
21   notify-send "uploading.." "video is upoading to 0x0.st"
22   curl -F "file=@/tmp/screencast.mp4" https://0x0.st | wl-copy && notify-send "Video stored in 0x0.st"
23}
24
25kill_proc(){
26    pkill --signal SIGINT wf-recorder
27    if [ $? -eq 0 ];
28    then
29        notify-send "Video stored" "Video was stored in /tmp/screencast.mp4"
30        pkill --signal SIGINT wf-recorder
31        exit 0
32    fi
33}
34
35remove_vid() {
36    [ -f /tmp/screencast.mp4 ] && rm /tmp/screencast.mp4
37}
38
39kill_proc
40
41OPT=$(printf "screencast\narea\nshare\nquit" | fuzzel --dmenu -p 'Select an option: ' )
42case $OPT in
43    'screencast')
44        sleep 1
45        remove_vid
46        sleep 1
47        screencast;;
48    'area')
49        sleep 1
50        remove_vid
51        sleep 1
52        area;;
53    'share')
54        check_connection && share || notify-send "Error" "check your internet connection" ;;
55    *|quit) exit 0;;
56esac