VideoBlur

Video_blur is a small ruby gem to blur a part of a video using FFmpeg. It automates the aspect ratio conversion and the FFmpeg filter parameters.

Input video :

image

Output video :

image

Requirements :

FFmpeg must be installed. To ensure it is available, on your command line, run which ffmpeg. This will give you the path where ffmpeg is installed. For example, it might return /usr/local/bin/ffmpeg.

Install FFmpeg on OS X : brew install ffmpeg

Install FFmpeg on Linux : apt-get install ffmpeg ffmpeg

Installation

Add this line to your application's Gemfile:

gem 'video_blur'

And then execute:

$ bundle

Or install it yourself as:

$ gem install video_blur

Usage

Example : Blur the video in.mp4 starting at (x=200, y=160) with blur box size (width=145, height=360)

video_blur in.mp4 -x 200 -y 160 -w 145 -e 360 -o out.mp4

For more information see help :

Usage: video_blur [options] [input_file]
    -o, --output OUTPUT              Set output directory
    -W, --screen-width WIDTH         Set screen width (default 1440)
    -H, --screen-height HEIGHT       Set screen width (default 1440)
    -x, --box-x X-POSITION           Set box x origin
    -y, --box-y Y-POSITION           Set box y origin
    -w, --box-width WIDTH            Set box width
    -e, --box-height height          Set box width
    -h, --help                       Prints this help

Development

After checking out the repo, run bin/setup to install dependencies. Then, run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release to create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

  1. Fork it ( https://github.com/[my-github-username]/video_blur/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request