Class: CarrierWave::Video::FfmpegOptions

Inherits:
Object
  • Object
show all
Defined in:
lib/carrierwave/video/ffmpeg_options.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(format, options) ⇒ FfmpegOptions

Returns a new instance of FfmpegOptions.



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# File 'lib/carrierwave/video/ffmpeg_options.rb', line 6

def initialize(format, options)
  @format = format.to_s
  @resolution = options[:resolution] || "640x360"
  @custom = options[:custom]
  @callbacks = options[:callbacks] || {}
  @logger = options[:logger]
  @unparsed = options
  @progress = options[:progress]

  @format_options = defaults.merge(options)
end

Instance Attribute Details

#callbacks ⇒ Object (readonly)

Returns the value of attribute callbacks.



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# File 'lib/carrierwave/video/ffmpeg_options.rb', line 4

def callbacks
  @callbacks
end

#custom ⇒ Object (readonly)

Returns the value of attribute custom.



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# File 'lib/carrierwave/video/ffmpeg_options.rb', line 4

def custom
  @custom
end

#format ⇒ Object (readonly)

Returns the value of attribute format.



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# File 'lib/carrierwave/video/ffmpeg_options.rb', line 4

def format
  @format
end

#resolution ⇒ Object (readonly)

Returns the value of attribute resolution.



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# File 'lib/carrierwave/video/ffmpeg_options.rb', line 4

def resolution
  @resolution
end

Instance Method Details

#encoder_options ⇒ Object 



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# File 'lib/carrierwave/video/ffmpeg_options.rb', line 33

def encoder_options
  { preserve_aspect_ratio: :width }
end

#format_options ⇒ Object

input



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# File 'lib/carrierwave/video/ffmpeg_options.rb', line 38

def format_options
  @format_options
end

#format_params ⇒ Object

output



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# File 'lib/carrierwave/video/ffmpeg_options.rb', line 43

def format_params
  params = @format_options.dup
  params.delete(:watermark)
  params[:custom] = [params[:custom], watermark_params].compact.join(' ')
  params
end

#logger(model) ⇒ Object 



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# File 'lib/carrierwave/video/ffmpeg_options.rb', line 22

def logger(model)
  model.send(@logger) if @logger.present?
end

#progress(model) ⇒ Object 



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# File 'lib/carrierwave/video/ffmpeg_options.rb', line 26

def progress(model)
  if @progress
    args = model.method(@progress).arity == 3 ? [@format, @format_options] : []
    lambda { |val| model.send(@progress, *(args + [val])) }
  end
end

#raw ⇒ Object 



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# File 'lib/carrierwave/video/ffmpeg_options.rb', line 18

def raw
  @unparsed
end

#watermark? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/carrierwave/video/ffmpeg_options.rb', line 50

def watermark?
  @format_options[:watermark].present?
end

#watermark_params ⇒ Object 



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# File 'lib/carrierwave/video/ffmpeg_options.rb', line 54

def watermark_params
  return nil unless watermark?

  @watermark_params ||= begin
    path = @format_options[:watermark][:path]
    position = @format_options[:watermark][:position].to_s || :bottom_right
    margin = @format_options[:watermark][:pixels_from_edge] || @format_options[:watermark][:margin] || 10
    positioning = case position
                    when 'bottom_left'
                      "#{margin}:main_h-overlay_h-#{margin}"
                    when 'bottom_right'
                      "main_w-overlay_w-#{margin}:main_h-overlay_h-#{margin}"
                    when 'top_left'
                      "#{margin}:#{margin}"
                    when 'top_right'
                      "main_w-overlay_w-#{margin}:#{margin}"
                  end

    "-vf \"movie=#{path} [logo]; [in][logo] overlay=#{positioning} [out]\""
  end
end