Class: Tootsie::Processors::VideoProcessor

Inherits:
Object
  • Object
show all
Defined in:
lib/tootsie/processors/video_processor.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(params = {}) ⇒ VideoProcessor

Returns a new instance of VideoProcessor.



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# File 'lib/tootsie/processors/video_processor.rb', line 8

def initialize(params = {})
  @input_url = params[:input_url]
  @thumbnail_options = (params[:thumbnail] || {}).with_indifferent_access
  @versions = [params[:versions] || {}].flatten
  @thread_count = Application.get.configuration.ffmpeg_thread_count
  @logger = Application.get.logger
end

Instance Attribute Details

#input_url ⇒ Object

Returns the value of attribute input_url.



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# File 'lib/tootsie/processors/video_processor.rb', line 92

def input_url
  @input_url
end

#thumbnail_options ⇒ Object

Returns the value of attribute thumbnail_options.



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# File 'lib/tootsie/processors/video_processor.rb', line 94

def thumbnail_options
  @thumbnail_options
end

#versions ⇒ Object

Returns the value of attribute versions.



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# File 'lib/tootsie/processors/video_processor.rb', line 93

def versions
  @versions
end

Instance Method Details

#execute!(&block) ⇒ Object 



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# File 'lib/tootsie/processors/video_processor.rb', line 28

def execute!(&block)
  result = {:urls => []}
  input, output, thumbnail_output = Input.new(@input_url), nil, nil
  begin
    input.get!
    begin
      versions.each_with_index do |version_options, version_index|
        version_options = version_options.with_indifferent_access
        
        if version_index == 0 and @thumbnail_options[:target_url]
          thumbnail_output = Output.new(@thumbnail_options[:target_url])
        else
          thumbnail_output = nil
        end
        begin              
          output = Output.new(version_options[:target_url])
          begin
            if version_options[:strip_metadata]
              # This actually strips in-place, so no need to swap streams
              CommandRunner.new("id3v2 --delete-all '#{input.file_name}'").run do |line|
                if line.present? and line !~ /\AStripping id3 tag in.*stripped\./
                  @logger.warn "ID3 stripping failed, ignoring: #{line}"
                end
              end
            end

            adapter_options = version_options.dup
            adapter_options.delete(:target_url)
            if thumbnail_output
              adapter_options[:thumbnail] = @thumbnail_options.merge(:filename => thumbnail_output.file_name)
            else
              adapter_options.delete(:thumbnail)
            end

            adapter = Tootsie::FfmpegAdapter.new(:thread_count => @thread_count)
            if block
              adapter.progress = lambda { |seconds, total_seconds|
                yield(:progress => (seconds + (total_seconds * version_index)) / (total_seconds * versions.length).to_f)
              }
            end
            adapter.transcode(input.file_name, output.file_name, adapter_options)

            output.content_type = version_options[:content_type] if version_options[:content_type]
            output.put!

            result[:urls].push output.result_url
          ensure
            output.close
          end
          if thumbnail_output
            thumbnail_output.put!
            result[:thumbnail_url] = thumbnail_output.result_url
          end
        ensure
          thumbnail_output.close if thumbnail_output
        end
      end
    end
  ensure
    input.close
  end
  result
end

#params ⇒ Object 



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# File 'lib/tootsie/processors/video_processor.rb', line 20

def params
  return {
    :input_url => @input_url,
    :thumbnail => @thumbnail_options,
    :versions => @versions
  }
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tootsie/processors/video_processor.rb', line 16

def valid?
  return @input_url && !@versions.blank?
end