azureru

FFMPEG stream to Janus Server stream-plugin from Video Capture Device

FFMPEG

Using ffmpeg for windows from gyan.dev at https://www.gyan.dev/ffmpeg/builds/, it is executed in WSL shell (in case you are wondering with all the shell syntax - for cmd or PowerShell just change it to windows path)

To List DirectShow Capture Devices

See https://trac.ffmpeg.org/wiki/DirectShow

azureru

So one day I get unknown revision error after running go get command from private repo

The easiest solution is to just add alias to force to use ssh (so credential will use our underlying ~/.ssh)

[url "ssh://git@theprivaterepo.com:2222/"]
	insteadOf = https://theprivaterepo.com/

Some recomend to use .netrc or use git credential provider

azureru

Delete Keys By Pattern

If for example your redis instance disable flushall or flushdb

# using LUA in redis-cli
eval "for _,k in ipairs(redis.call('keys','flag:*')) do redis.call('del',k) end" 0

azureru

Keybase proof

I hereby claim:

• I am azureru on github.
• I am azureru (https://keybase.io/azureru) on keybase.
• I have a public key whose fingerprint is 9395 B8CA C51B FD8E 9BB2 6419 5DCD 4150 C59E AA8C

To claim this, I am signing this object:

azureru

#!/bin/bash

### User Pass Mysql ###
USER=backup
PASS=backup
DBNAME=project_sql
BACKUP_DIR="/root/backup"
DST_HOST="user@host"
REMOTE_DST_DIR="/root/backup"
BACKUP_DAILY=true # if set to false backup will not work

azureru

Starting Up

If you manage it everyday - add this to your .basrc or .bash_profile or cloud-console. If not then all k in this cheatsheet means kubectl

alias k="kubectl"

To gain access to a pod

azureru

#!/bin/bash 

wget https://image

ftp -n <<EOF
open ftp.example.com
user user secret
put my-local-file.txt
EOF

azureru

# concat images 
ffmpeg -r 30 -f image2 -s 1920x1080 -i end%05d.png -vcodec libx264 -crf 25  -pix_fmt yuv420p part0.mp4


# concat videos
for f in ./part*.mp4; do echo "file '$f'" >> mylist.txt; done
fmpeg -f concat -safe 0 -i mylist.txt -c copy output.mp4

azureru

// the node-script 
var request = global.get('request');

var accessToken = "YOURACCESSTOKEN";
var domain      = "YOURDOMAIN";
var record      = "YOURDNSRECORD";

var ip     = msg.payload;

var options = {

azureru

MySQL

Getting started:

• http://www.sqlteaching.com/
• https://www.codecademy.com/courses/learn-sql

Related tutorials:

• MySQL-CLI: https://www.youtube.com/playlist?list=PLfdtiltiRHWEw4-kRrh1ZZy_3OcQxTn7P
• Analyzing Business Metrics: https://www.codecademy.com/learn/sql-analyzing-business-metrics