Media

An ffmpeg or avconv wrapper

Installation

Add this line to your application's Gemfile:

gem 'media'

And then execute:

$ bundle

Or install it yourself as:

$ gem install media

Usage

Media.convert do
  option 'v', 'warning'

  input 'in1.mov'

  input 'in2.mov' do
    option 'foo', 'bar'
  end

  output 'out.mov' do
    graph do
      chain do
        filter 'split' do
          input 'in'
          output 'T1'
        end
        filter 'fifo'
        filter 'overlay' do
          input 'T2'
          arg '0'
          arg 'H/2'
          output 'out'
        end
      end
      chain do
        filter 'fifo' do
          input 'T1'
        end
        filter 'crop' do
          arg 'iw'
          arg 'ih/2'
          arg '0'
          arg 'ih/2'
        end
        filter 'vflip' do
          output 'T2'
        end
      end
    end

    map 'out'

    option 'f', 'prores'
  end
end

Outputs:

ffmpeg -v warning -i in1.mov -foo bar -i in2.mov -filter_complex "[in] split [T1], fifo, [T2] overlay=0:H/2 [out]; [T1] fifo, crop=iw:ih/2:0:ih/2, vflip [T2]" -map out -f prores out.mov

Contributing

1. Fork it
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 new Pull Request