Koasing

import wave

FILENAME = 'Eternal Snow_이용신_Returned Fullmoon.wav'

wav = wave.open(FILENAME, mode='rb')

n_channels, sample_width, frame_rate, no_frames, _, _ = wav.getparams()
sample_bits = sample_width * 8

print(f'{FILENAME}')

Koasing

# check PID
if [[ $EUID -ne 0 ]]; then
    echo "Not a superuser... run with sudo."
    exit 1
fi

# some magic values
SSH_PORT=42222
MACHINE_DIST="ubuntu"$(lsb_release -sr | sed -e "s/\.//g")
MACHINE_ARCH=$(uname -m)

Koasing

@ECHO OFF

REM 1280x 720 30fps =  5000k
REM           60fps =  7500k
REM 1920x1080 30fps =  8000k
REM 1920x0180 60fps = 12000k


:BEGIN
IF [%1]==[] GOTO :eof

Koasing

Rsync for NAS beginner

Local backup

rsync -ahvP [-c] [-m] [-W] [-n] [--remove-source-files] [--log-file=FILE] src dest

use sudo to keep file ownership!

recommended options

Koasing

#!/usr/bin/env python3
import argparse
from pytube import YouTube


def download(url):
    def progress_callback(stream, chunk, file_handle, bytes_remaining):
        # this function is called by download process... do not call directly!
        total_size = stream.filesize
        downloaded_size = total_size - bytes_remaining

Koasing

Setup xrdp on Lubuntu 17.10

I recommend Lubuntu to use with xrdp, because Ubuntu's default GUI, Unity, does not work with xrdp. Lubuntu uses LXDE which is compatable with xrdp.

Install xrdp

Koasing

Change preferred screen resolution of Lubuntu on VMware

Symptom

On some Display Manager events (login, screen-lock, etc) screen resolution changes to 800x600 forcefully, even though user setting is different.

LightDM's display-setup-script or .config/autostart methods does not fix this problem. These methods changes resolution after specified events by executing xrandr command, but other events (escpecially screen-lock) reset resolution to 800x600 and annoy me.

Koasing

import os
import os.path as path
import re

from PIL import Image

IMAGE_EXTENSION = ['.jpg', '.jpeg', '.png', '.gif']
CAPTURE_SIZE = [(2048, 1536), (1136, 640)]
SCREEN_RATIO = [w/h if w > h else h/w for w, h in CAPTURE_SIZE]

Koasing

Windows 7 SP1 Post-install process

Install KB3020369

• April 2015 servicing stack update for Windows 7 and Windows Server 2008 R2
• Required for rollup package installer
• Detail
• Download Page

Koasing

from datetime import datetime, timedelta
from datetime import time

from copy import deepcopy

# settings
start_date = datetime(2016, 9, 20, 15, 00, 00)
boost_date = datetime(2016, 9, 23, 15, 00, 00)
end_date   = datetime(2016, 9, 26, 21, 00, 00)
now_date   = deepcopy(start_date)