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@williamdes
williamdes / base64_encode_decode.cpp
Created June 20, 2017 16:40
c++ 11 encoding and decoding base64
//FROM
//https://stackoverflow.com/a/34571089/5155484
typedef unsigned char uchar;
static const std::string b = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";//=
static std::string base64_encode(const std::string &in) {
std::string out;
int val=0, valb=-6;
for (uchar c : in) {
@lummie
lummie / enum.go
Last active June 16, 2025 08:38
Golang Enum pattern that can be serialized to json
package enum_example
import (
"bytes"
"encoding/json"
)
// TaskState represents the state of task, moving through Created, Running then Finished or Errorred
type TaskState int
@Brainiarc7
Brainiarc7 / ffmpeg-livestream-to-streaming-sites-vaapi-nvenc.md
Last active August 18, 2024 02:58
ffmpeg livestreaming to youtube via Nvidia's NVENC and Intel's VAAPI on supported hardware

Streaming your Linux desktop to Youtube and Twitch via Nvidia's NVENC and VAAPI:

Considerations to take when live streaming:

The following best practice observations apply when using a hardware-based encoder for live streaming to any platform:

  1. Set the buffer size (-bufsize:v) equal to the target bitrate (-b:v). You want to ensure that you're encoding in CBR mode.

  2. Set up the encoders as shown:

@RichardBronosky
RichardBronosky / aws-userdata.sh
Last active February 11, 2021 18:27
#!/bin/bash
url="https://gist.githubusercontent.com/RichardBronosky/2d04c7c2e9a5bea67cd9760a35415a3f/raw/install_mongo.sh"
script="/tmp/userdata.sh"
echo "Running userdata script as $(whoami) from $(pwd)"
# Log commands to stdout and vicariously /var/log/cloud-init-output.log
set -o xtrace
# Exit on error
@prise6
prise6 / r-datatable-dplyr-lag.R
Last active December 12, 2022 14:23
Exploration of different ways to compute quick diff time (lag) in R by group
# ------------------------------------------------------------------------
#
# MICROBENCHMARK ABOUT LAG OPERATION WITH R (dplyr, data.table)
#
# ------------------------------------------------------------------------
#
# Notes:
#
@Francesco149
Francesco149 / osu_on_linux_overhaul.md
Last active March 21, 2025 16:22
Ultimate guide to low-latency osu on linux
@jcberthon
jcberthon / networkmanager-wifi-powersave.md
Last active September 15, 2025 16:56
NetworkManager Wi-Fi powersaving configuration

NetworkManager WiFi Power Saving

NetworkManager supports WiFi powersaving but the function is rather undocumented.

From the source code: wifi.powersave can have the following value:

  • NM_SETTING_WIRELESS_POWERSAVE_DEFAULT (0): use the default value
  • NM_SETTING_WIRELESS_POWERSAVE_IGNORE (1): don't touch existing setting
  • NM_SETTING_WIRELESS_POWERSAVE_DISABLE (2): disable powersave
@jeroen
jeroen / favicon.R
Last active February 14, 2019 21:32
Generate favicon with magick
library(magick)
library(magrittr)
# Convert to 'ico' format
image_read("https://www.r-project.org/logo/Rlogo.png") %>%
image_scale("32x32!") %>% # remove the "!" after 32x32 to scale proportionally
image_write("favicon.ico", format = "ico")
# Favicon can also be png/gif
@olih
olih / jq-cheetsheet.md
Last active October 28, 2025 07:54
jq Cheet Sheet

Processing JSON using jq

jq is useful to slice, filter, map and transform structured json data.

Installing jq

On Mac OS

brew install jq

@artemklevtsov
artemklevtsov / .Rprofile
Last active August 14, 2016 19:43
# Options
options(repos = list("CRAN" = "https://cloud.r-project.org/"))
#options(help_type = "html")
options(Ncpus = 4L)
options(digits.secs = 3)
options(tab.width = 4)
options(max.print = 100)
options(scipen = 10)
options(show.signif.stars = FALSE)
#options(stringsAsFactors = FALSE)