Window recording with ffmpeg

Author Mitja Felicijan <mitja.felicijan@gmail.com> 2026-05-06 15:31:27 +0200
Committer Mitja Felicijan <mitja.felicijan@gmail.com> 2026-05-06 15:31:27 +0200
Commit de060174ef843829a9340a46e120508bf7c4cab1 (patch)
-rw-r--r-- .config/i3/config 6
-rwxr-xr-x .shenanigans.sh 28
2 files changed, 30 insertions, 4 deletions
diff --git a/.config/i3/config b/.config/i3/config
...
164 
client.focused_inactive $dark         $dark         $light        $light
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client.focused_inactive $dark         $dark         $light        $light
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client.urgent           $secondary    $secondary    $light        $light
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client.urgent           $secondary    $secondary    $light        $light
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# Workspace 1 only has floating windows
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# Workspaces with only floating windows
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for_window [workspace="1"] floating enable
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for_window [workspace="^(1|5)$"] floating enable
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# Expections for opening in floating mode where XSetClassHint is set to floating
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# Expections for opening in floating mode where XSetClassHint is set to floating
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for_window [class="^(mpv|SimpleScreenRecorder|Thunar|transmission|Xmagnify)$"] floating enable
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for_window [class="^(floating|mpv|SimpleScreenRecorder|Thunar|transmission|Xmagnify)$"] floating enable
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for_window [title="^(Stalag|game)$"] floating enable
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for_window [title="^(Stalag|game)$"] floating enable
diff --git a/.shenanigans.sh b/.shenanigans.sh
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# Software list:
 1 
# Software list:
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#   xss-lock xkbset xclip xsel cifs-utils picom
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#   xss-lock xkbset xclip xsel xwininfo cifs-utils picom ffmpeg
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#   vim git tmux maim mc htop entr rsync jq rofi stow newsboat
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#   vim git tmux maim mc htop entr rsync jq rofi stow newsboat
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#   st rsync curl hstr tree make gdb nvtop ctags mpv lazygit fd
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#   st rsync curl hstr tree make gdb nvtop ctags mpv lazygit fd
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...
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	printf "%-18s %s\n" "San Francisco:" "$(TZ='America/Los_Angeles' date +'%a %H:%M')"
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	printf "%-18s %s\n" "San Francisco:" "$(TZ='America/Los_Angeles' date +'%a %H:%M')"
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	printf "%-18s %s\n" "New York:" "$(TZ='America/New_York' date +'%a %H:%M')"
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	printf "%-18s %s\n" "New York:" "$(TZ='America/New_York' date +'%a %H:%M')"
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}
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}
 
  
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record() {
 
  
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	mkdir -p "$HOME/Videos"
 
  
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	win=$(xwininfo -int | awk '/Window id:/{print $4; exit}')
 
  
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	[ -z "$win" ] && { echo "no window picked"; exit 1; }
 
  
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	eval $(
 
  
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		xwininfo -id "$win" | awk '
 
  
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			/Absolute upper-left X:/{x=$4}
 
  
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			/Absolute upper-left Y:/{y=$4}
 
  
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			/Width:/{w=$2}
 
  
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			/Height:/{h=$2}
 
  
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		END{printf("X=%s;Y=%s;W=%s;H=%s\n", x, y, w, h)}
 
  
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		'
 
  
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	)
 
  
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	if [ -z "$W" ] || [ -z "$H" ]; then
 
  
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		echo "failed to get geometry"; exit 1
 
  
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	fi
 
  
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	ts=$(date '+%F-%H-%M-%S')
 
  
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	out="$HOME/Videos/record-${ts}.mp4"
 
  
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	echo "Recording ${W}x${H}+${X},${Y} -> ${out}"
 
  
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	ffmpeg -y -f x11grab -video_size "${W}x${H}" -framerate 60 -i "${DISPLAY:-:0.0}+${X},${Y}" -c:v libx264 -preset veryfast -crf 23 -pix_fmt yuv420p "$out"
 
  
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}