Module: ImageProcessing::Vips::Processor::Utils
- Defined in:
- lib/image_processing/vips.rb
Class Method Summary collapse
-
.select_valid_loader_options(source_path, options) ⇒ Object
libvips uses various loaders depending on the input format.
-
.select_valid_options(operation_name, options) ⇒ Object
libvips uses various loaders and savers depending on the input and output image format.
-
.select_valid_saver_options(destination_path, options) ⇒ Object
Filters out unknown options for saving images.
Class Method Details
.select_valid_loader_options(source_path, options) ⇒ Object
libvips uses various loaders depending on the input format.
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# File 'lib/image_processing/vips.rb', line 175 def (source_path, ) loader = ::Vips.vips_foreign_find_load(source_path) loader ? (loader, ) : end |
.select_valid_options(operation_name, options) ⇒ Object
libvips uses various loaders and savers depending on the input and output image format. Each of these loaders and savers accept slightly different options, so to allow the user to be able to specify options for a specific loader/saver and have it ignored for other loaders/savers, we do some introspection and filter out options that don’t exist for a particular loader or saver.
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# File 'lib/image_processing/vips.rb', line 192 def (operation_name, ) introspect = ::Vips::Introspect.get(operation_name) = introspect.optional_input.keys.map(&:to_sym) .select { |name, value| .include?(name) } end |
.select_valid_saver_options(destination_path, options) ⇒ Object
Filters out unknown options for saving images.
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# File 'lib/image_processing/vips.rb', line 181 def (destination_path, ) saver = ::Vips.vips_foreign_find_save(destination_path) saver ? (saver, ) : end |