ErykDarnowski

USOS timetable block time calculator [Userscript]

A script that adds time of block next to it's start / end times in the timetable.

Instructions

1. Install a Userscript browser extension

• Tampermonkey (I use this one)
• Violentmonkey
• etc.

ErykDarnowski

heif-convert convert all .heic files to .png

This snippet will (in current dir):

1. Convert all files of .heic / .HEIC extension to ones with .png.
2. Remove all original .heic files.

find . -type f -iname '*.heic' -print0 | while IFS= read -r -d '' file; do heif-convert "$file" -f "png" && rm "$file"; done

ErykDarnowski

Crop out the Windows 10 taskbar from a 1080p video using ffmpeg

ffmpeg -i in.mp4 -vf "crop=1920:1040:0:0" out.mp4
#     cropped width and height ^                  (we're removing 40px from the height)
#  coordinates of the top-left corner ^           (we're setting the top-left corner to the top-left of the screen so we cut out the bottom 40px)

ErykDarnowski

Linux show dir sizes in human readable format and sort them in ascending order

du -sh * | sort -h

ErykDarnowski

Crop out view from glass door from P1S timelapse video using ffmpeg

➜ ffmpeg -i in.mp4 -vf "crop=1240:720:0:0" out.mp4
#     cropped width and height ^                  (we're removing 40px from the height)
#  coordinates of the top-left corner ^           (we're setting the top-left corner to the top-left of the screen so we cut out the bottom 40px)