class DragonflyLibvips::Analysers::ImageProperties
Constants
- DPI
Public Instance Methods
call(content)
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# File lib/dragonfly_libvips/analysers/image_properties.rb, line 8 def call(content) return {} unless content.ext return {} unless SUPPORTED_FORMATS.include?(content.ext.downcase) input_options = {} input_options['access'] = 'sequential' input_options['autorotate'] = true if content.mime_type == 'image/jpeg' input_options['dpi'] = DPI if content.mime_type == 'application/pdf' img = ::Vips::Image.new_from_file(content.path, DragonflyLibvips.symbolize_keys(input_options)) width = img.width height = img.height xres = img.xres yres = img.yres { 'format' => content.ext.to_s, 'width' => width, 'height' => height, 'xres' => xres, 'yres' => yres, 'progressive' => (content.mime_type == 'image/jpeg' && img.get('jpeg-multiscan') != 0) } end