Retorillo retorillo

fontforgeによる等幅合成フォント作成時の注意点

make.pyはファイル名に使うべきではない

pythonをインストールしている環境ではmakeコマンドよりもmake.pyが優先して実行されることがあり混乱する。

cidFlattenは使うべきではない

同じコード値を示すグリフは複数ある場合がある。この場合cidFlattenは期待しない結果となる。

Creating fast drawing video with ffmpeg

ffmpeg -i "concat:video1.ts|video2.ts|video3.ts" -c copy concat.ts
ffmpeg -i concat.ts -an -filter:v "setpts=0.03125*PTS" -c:v libx264 -preset ultrafast -crf 0 m32.mp4

Use setpts=0.25*PTS for x4 video, setpts=0.03125*PTS for x32 video.
Use -an to remove audio track.

Various way to achieve output from other executable

stdin w/ terminal script

#include <stdio.h>

int main() {
  char buffer[256];
  while (fgets(buffer, sizeof(buffer), stdin))

Install Latest GCC on Ubuntu

sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update
sudo apt-get install gcc-8 g++-8
sudo update-alternatives --install \
 /usr/bin/gcc gcc /usr/bin/gcc-4.9 60 \
 --slave /usr/bin/g++ g++ /usr/bin/g++-4.9

	// ExtractTwemojiFileNames
	// Extract all emoji characters from text
	// [EXAMPLE] 🕵🏾‍♀️ => 1f575-1f3fe-200d-2640-fe0f
	// Licensed under the MIT license
	// Migrated from twemoji.js v12.1.3 (Twitter Inc.)
	static IEnumerable<string> ExtractTwemojiFileNames(string text) {
	Regex regex = new Regex("(?:\ud83d\udc68\ud83c\udffc\u200d\ud83e\udd1d\u200d\ud83d\udc68\ud83c\udffb\|\ud83d\udc68\ud83c\udffd\u200d\ud83e\udd1d\u200d\ud83d\udc68\ud83c[\udffb\udffc]\|\ud83d\udc68\ud83c\udffe\u200d\ud83e\udd1d\u200d\ud83d\udc68\ud83c[\udffb-\udffd]\|\ud83d\udc68\ud83c\udfff\u200d\ud83e\udd1d\u200d\ud83d\udc68\ud83c[\udffb-\udffe]\|\ud83d\udc69\ud83c\udffb\u200d\ud83e\udd1d\u200d\ud83d\udc68\ud83c[\udffc-\udfff]\|\ud83d\udc69\ud83c\udffc\u200d\ud83e\udd1d\u200d\ud83d\udc68\ud83c[\udffb\udffd-\udfff]\|\ud83d\udc69\ud83c\udffc\u200d\ud83e\udd1d\u200d\ud83d\udc69\ud83c\udffb\|\ud83d\udc69\ud83c\udffd\u200d\ud83e\udd1d\u200d\ud83d\udc68\ud83c[\udffb\udffc\udffe\udfff]\|\ud83d\udc69\ud83c\udffd\u200d\ud83e\udd1d\u200d\ud83d\udc69\ud83c[\udf

	// Licensed under CC0, No Rights Reserved
	Shader "Custom/TransparentCutoutDoubleSidedDiffuseShader" {
	Properties {
	_Color ("Color", Color) = (1, 1, 1, 1)
	_Alpha ("Alpha Map", 2D) = "white" {}
	_Normal ("Normal Map", 2D) = "bump" {}
	_Cutout ("Cutout", Range(0, 1)) = 0.5
	}
	SubShader {
	Tags {

	setlocal enabledelayedexpansion

	set NaN=0
	for /f "delims=0123456789" %a in ("432432") do set NaN=1
	if !NaN! equ 0 (
	REM process for number
	)
	if !NaN! equ 1 (
	REM process for NaN
	)

	REM This snippet can concat many TS files up to 9999 (1.ts - 9999.ts)
	REM NOTE: `ffmpeg -i "concat:[too many files]"` will fail

	@echo off
	setlocal enabledelayedexpansion

	set skipped_files=
	(
	for /f %%f in ('dir /b *.ts') do (
	set num=%%~nf

	REM This snippet sort *.ts files in numerical order. Up to 9999. (1.ts - 9999.ts)
	@echo off
	setlocal enabledelayedexpansion
	(
	for /f %%f in ('dir /b *.ts') do (
	set num=%%~nf
	set elif=1
	if !elif! equ 1 if !num! lss 10 set "num=000!num!" && set elif=0
	if !elif! equ 1 if !num! lss 100 set "num=00!num!" && set elif=0
	if !elif! equ 1 if !num! lss 1000 set "num=0!num!" && set elif=0