trantrongbinh

Encoding Video

Installing

Install FFmpeg with homebrew. You'll need to install it with a couple flags for webm and the AAC audio codec.

brew install ffmpeg --with-libvpx --with-libvorbis --with-fdk-aac --with-opus

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# to list all ports that are used
sudo netstat -ntlp | grep LISTEN

# you can obtain a specific port using the following command
sudo netstat -ntlp | grep :8080

# when you execute the command above you will see something like that
tcp        0      0 0.0.0.0:27370           0.0.0.0:*               LISTEN      4394/skype      
tcp        0      0 127.0.1.1:53            0.0.0.0:*               LISTEN      2216/dnsmasq    
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      4912/cupsd      

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Modified Preorder Tree Traversal

Hierarchical data metrics that allows fast read operations on tree like structures.

Based on Left and Right fields that are set during tree traversal. When entered into node value is set to it's Left, when exiting node value is set to it's Right.

Sample implementation

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Originall From: Posted 2015-05-29 http://ubwg.net/b/full-list-of-ffmpeg-flags-and-options

This is the complete list that’s outputted by ffmpeg when running ffmpeg -h full.

usage: ffmpeg [options] [[infile options] -i infile]… {[outfile options] outfile}…

Getting help:
    -h — print basic options
    -h long — print more options
    -h full — print all options (including all format and codec specific options, very long)

trantrongbinh

Regex for matching ALL Japanese common & uncommon Kanji (4e00 – 9fcf) ~ The Big Kahuna!
([一-龯])

Regex for matching Hirgana or Katakana
([ぁ-んァ-ン])

Regex for matching Non-Hirgana or Non-Katakana
([^ぁ-んァ-ン])

Regex for matching Hirgana or Katakana or basic punctuation (、。’)

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/** 
Problem:

You have a javascript array that likely has some duplicate values and you would like a count of those values.
Solution:

Try this schnippet out.
*/

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MySQL

Getting started:

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

Related tutorials:

• MySQL-CLI
• Analyzing Business Metrics

trantrongbinh

##Windows users:

• Download wamp: http://www.wampserver.com/en/
• Download and extract cmder mini: https://github.com/cmderdev/cmder/releases/download/v1.1.4.1/cmder_mini.zip
• Update windows environment variable path to point to your php install folder (inside wamp installation dir) (here is how you can do this http://stackoverflow.com/questions/17727436/how-to-properly-set-php-environment-variable-to-run-commands-in-git-bash)

cmder will be refered as console

##Mac Os, Ubuntu and windows users continue here:

• Create a database locally named homestead utf8_general_ci