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#!/usr/bin/env bash
help() {
# display help
echo -e "
Usage: record [-h|-s|-m|-M|-n fileName]
Script to record screen. By default, this script records the primary monitor
and both microphone and headset audio.
If no file name is specified it defaults to the current timestamp.
Options:
-h Print this help message
-s Select the secondary monitor
-m Mute mic audio
-M Mute all audio
-n Enter file name for the video
"
}
primaryRes=$(xrandr | awk -F'[ +]' '/primary/ { print $4 }')
primaryOffset=$(xrandr | awk -F'[ +]' '/primary/ { print $5 }')
secondaryRes=$(xrandr | grep " connected" | awk -F'[ +]' '! /primary/ { print $3 }')
vidopts="-s $primaryRes -r 60 -probesize 32M -f x11grab -thread_queue_size 1024 -threads 0 -i :0+$primaryOffset"
audopts="-f alsa -thread_queue_size 1024 -ac 2 -ar 44100 -i hw:CARD=Creative,DEV=2 -f alsa -thread_queue_size 1024 -ac 2 -ar 44100 -i hw:CARD=Microphone,DEV=0 -filter_complex [1:a]volume=0.1,amix=inputs=2,aresample=async=1"
name=$(date "+%F-%H-%M-%S")
while getopts ":hsmMn:" option; do
case $option in
h) # print help menu
help
exit
;;
s) # select secondary screen
vidopts="-s $secondaryRes -r 60 -f x11grab -i :0"
;;
m) # mute mic audio
audopts="-f alsa -thread_queue_size 1024 -ac 2 -ar 44100 -i hw:CARD=Creative,DEV=2"
;;
M) # mute all audio
audopts="-an"
;;
n) # enter a file name
name=$OPTARG
;;
\?) # invalid option
echo "Error: Invalid option -$OPTARG" >&2
exit 1
;;
:) # empty optarg
echo "Option -$OPTARG requires an argument" >&2
exit
;;
esac
done
opts="-c:v libx265 -c:a libopus -b:a 128k -preset ultrafast"
ffmpeg $vidopts $audopts $opts "$HOME/vids/${name}.mkv"
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