Contents

# frozen_string_literal: true

require 'vips'

module DragonflyLibvips
  module Processors
    class Encode
      def call(content, format, options = {})
        raise UnsupportedFormat unless content.ext
        raise UnsupportedFormat unless SUPPORTED_FORMATS.include?(content.ext.downcase)

        format = format.to_s
        format = 'tif' if format == 'tiff'
        format = 'jpg' if format == 'jpeg'

        raise UnsupportedOutputFormat unless SUPPORTED_OUTPUT_FORMATS.include?(format.downcase)

        if content.mime_type == Rack::Mime.mime_type(".#{format}")
          content.ext ||= format
          content.meta['format'] = format
          return
        end

        options = DragonflyLibvips.stringify_keys(options)

        input_options = options.fetch('input_options', {})
        input_options['access'] ||= 'sequential'
        if content.mime_type == 'image/jpeg'
          input_options['autorotate'] = true unless input_options.key?('autorotate')
        end

        output_options = options.fetch('output_options', {})
        if FORMATS_WITHOUT_PROFILE_SUPPORT.include?(format)
          output_options.delete('profile')
        else
          output_options['profile'] ||= input_options.fetch('profile', EPROFILE_PATH)
        end
        output_options.delete('Q') unless format.to_s =~ /jpg|jpeg/i
        output_options['format'] ||= format.to_s if format.to_s =~ /gif|bmp/i

        img = ::Vips::Image.new_from_file(content.path, DragonflyLibvips.symbolize_keys(input_options))

        content.update(
          img.write_to_buffer(".#{format}", DragonflyLibvips.symbolize_keys(output_options)),
          'name' => "temp.#{format}",
          'format' => format
        )
        content.ext = format
      end

      def update_url(url_attributes, format, _options = {})
        url_attributes.ext = format.to_s
      end
    end
  end
end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
dragonfly_libvips-2.5.0	lib/dragonfly_libvips/processors/encode.rb
dragonfly_libvips-2.4.2	lib/dragonfly_libvips/processors/encode.rb
dragonfly_libvips-2.4.1	lib/dragonfly_libvips/processors/encode.rb
dragonfly_libvips-2.4.0	lib/dragonfly_libvips/processors/encode.rb