OpenBSD screen recording and audio/video merge script.




For OpenBSD screen recording audio and video we use ffmpeg for video and aucat for audio and then merge it into a single file with the script.

Before you can do that, you need to have your system ready to record audio on OpenBSD, do the following:


In /etc/rc.conf.local you must add the page and restart the audio daemon.


sndiod_flags=-s default -m play,mon -s mon


Or execute the following:


rcctl set sndiod flags -s default -m play,mon -s mon


rcctl restart sndiod


Then try to record the sound on the screen with OpenBSD:


aucat -f snd/mon -o file.wav


Listen to what we have recorded. If it works, go ahead.


aucat -i file.wav



So we create a file with any name we want, just type in and fill it with the following text:




if (dialog --yesno "Start Record?" 20 78); then exec aucat -f snd/mon -o 1.wav & ffmpeg -video_size 1920x1080 -framerate 30 -f x11grab -i :0.0 -c:v libx264 -qp 0 -preset ultrafast 1.mkv 2> /dev/null &

if (dialog --msgbox 'Stop Record and wait 10 seconds!' 6 20); then exec pkill ffmpeg aucat & sleep 10

if (dialog --yesno "Merge Audio and Video?" 20 78); then exec ffmpeg -i 1.mkv -i 1.wav -c copy Full.mkv;







After that make it executable chmod a+x and that's it.

BSD is so easy and fun.

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