Rmedia

Rmedia is an interface between the Ruby and FFmpeg.

• http[s] input ready.
• input seeking ready.
• 2 pass encode ready.

Dependnecy

FFmpeg

How to build. here

Installation

Add this line to your application's Gemfile:

gem 'rmedia'

And then execute:

$ bundle

Or install it yourself as:

$ gem install rmedia

Usage

Settings

Default, Rmedia need execution path and named ffmpeg / ffprobe. But you can set binary.

FFmpeg.ffmpeg_bin = '/path/to/bin/ffmpeg'
FFmpeg.ffprobe_bin = '/path/to/bin/ffprobe'

Default, Rmedia kill ffmpeg process when no 10 second IO feedback. But you can set timeout.

FFmpeg.timeout = 30

Media

Readable data here

media = FFmpeg::Media.new('path/to/media')

media.duration # 6.4
media.width # 640

Via http[s]

media = FFmpeg::Media.new('http://any/to/media')

Transcode

Use encode options. human friendly options here

media.transcode('movie.webm', format: 'webm', video_bit_rate: '1500k') # transcode to webm
trnascoded = media.transcode('movie.webm', format: 'webm', video_bit_rate: '1500k') # return encoded media

Or give a string.

media.transcode('audio.mp3', '-f mp3 -vn') # transcode to mp3

You can use progress.

media.transcode('movie.mp4') { |progress| puts progress } # 0.0 to 1.0

Input seeking. Give you faster performance.

media.screenshot('out.jpg') # default screenshot make half of duration frame.
media.screenshot('out.jpg', seek_position: 3.2) # you can change it. -ss / seek_position option.

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also 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, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

License

The gem is available as open source under the terms of the MIT License.