alexellis

1. Sign up to DigitalOcean
2. Download Terraform
3. Clone this gist using the URL from the address bar
4. Run terraform init
5. Run terraform apply -var="do_token=$(cat $HOME/digitalocean-access-token)"
6. View the output for the login command and gateway URL i.e.

gateway_url = http://178.128.39.201:8080/
login_cmd = faas-cli login -g http://178.128.39.201:8080/ -p rvIU49CEcFcHmqxj

jaxxzer

// rtsp receivers:
gst-launch-1.0 rtspsrc location="rtsp://192.168.0.102:8554/test" protocols=GST_RTSP_LOWER_TRANS_TCP latency=0 ! rtph264depay ! decodebin ! videoconvert ! autovideosink sync=false

gst-launch-1.0 rtspsrc location=rtsp://192.168.1.156:8554/test ! rtph264depay ! h264parse ! avdec_h264 ! videoconvert ! autovideosink


// Stream video to window and record it to file
gst-launch-1.0 -e -v udpsrc port=5600 ! tee name=VIDEOWINDOW ! queue ! application/x-rtp, encoding-name=H264, payload=96 ! rtph264depay ! h264parse ! mp4mux ! filesink location=myvideo.mp4 VIDEOWINDOW. ! queue ! application/x-rtp, payload=96 ! rtph264depay ! avdec_h264 ! autovideosink

charlesroper

How to setup a practically free CDN using Backblaze B2 and Cloudflare

⚠️ Note 2023-01-21
Some things have changed since I originally wrote this in 2016. I have updated a few minor details, and the advice is still broadly the same, but there are some new Cloudflare features you can (and should) take advantage of. In particular, pay attention to Trevor Stevens' comment here from 22 January 2022, and Matt Stenson's useful caching advice. In addition, Backblaze, with whom Cloudflare are a Bandwidth Alliance partner, have published their own guide detailing how to use Cloudflare's Web Workers to cache content from B2 private buckets. That is worth reading,

pgilad

Generate private key

$ openssl genrsa -out private.key 4096

Generate a Certificate Signing Request

openssl req -new -sha256 \

jedi4ever

Building chromium on OSX

See https://chromium.googlesource.com/chromium/src/+/master/docs/mac_build_instructions.md

git clone depot_tools

add to path (not using ~ but $HOME) in .bash_profile

Increase vnodes

sudo sysctl kern.maxvnodes=$((512*1024))

cyberang3l

https://github.com/aancel/admin/wiki/VirtualGL-on-Ubuntu

https://virtualgl.org/About/Introduction

https://www.turbovnc.org

VirtualGL

When you use ssh with X forwarding, you might have noticed that you cannot execute programs that require 3D acceleration. That's where VirtualGL comes into play.

narate

Create a Wi-Fi hotspot on Linux using nmcli

Original post : https://unix.stackexchange.com/a/310699

nmcli con add type wifi ifname wlan0 con-name Hostspot autoconnect yes ssid Hostspot
nmcli con modify Hostspot 802-11-wireless.mode ap 802-11-wireless.band bg ipv4.method shared
nmcli con modify Hostspot wifi-sec.key-mgmt wpa-psk
nmcli con modify Hostspot wifi-sec.psk "veryveryhardpassword1234"

Hebali

// Sobel Edge Detection Filter
// GLSL Fragment Shader
// Implementation by Patrick Hebron

uniform sampler2D	texture;
uniform float 		width;
uniform float 		height;

void make_kernel(inout vec4 n[9], sampler2D tex, vec2 coord)
{

wonderbeyond

#!/usr/bin/env python

"""
How to use it:
1. Just `kill -2 PROCESS_ID` or `kill -15 PROCESS_ID`,
   The Tornado Web Server Will shutdown after process all the request.
2. When you run it behind Nginx, it can graceful reboot your production server.
"""

import time

ahem

/* global createImageBitmap */

function loadImageWithImageTag(src) {
    return new Promise((resolve, reject) => {
        const img = new Image;
        img.crossOrigin = '';
        img.src = src;
        img.onload = () => { resolve(img); };
        img.onerror = () => { reject(img); };
    });