Module: BRS::Option

Defined in:
lib/brs/option.rb

Constant Summary collapse

DEFAULT_BUFFER_LENGTH = 
0
COMPRESSOR_DEFAULTS = 
{
  :mode                             => nil,
  :quality                          => nil,
  :lgwin                            => nil,
  :lgblock                          => nil,
  :disable_literal_context_modeling => nil,
  :size_hint                        => nil,
  :large_window                     => nil
}
.freeze
DECOMPRESSOR_DEFAULTS = 
{
  :disable_ring_buffer_reallocation => nil,
  :large_window                     => nil
}
.freeze

Class Method Summary collapse

Class Method Details

.get_compressor_options(options, buffer_length_names) ⇒ Object 



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# File 'lib/brs/option.rb', line 28

def self.get_compressor_options(options, buffer_length_names)
  Validation.validate_hash options

  buffer_length_defaults = buffer_length_names.each_with_object({}) { |name, defaults| defaults[name] = DEFAULT_BUFFER_LENGTH }
  options                = COMPRESSOR_DEFAULTS.merge(buffer_length_defaults).merge options

  buffer_length_names.each { |name| Validation.validate_not_negative_integer options[name] }

  mode = options[:mode]
  unless mode.nil?
    Validation.validate_symbol mode
    raise ValidateError, "invalid mode" unless MODES.include? mode
  end

  quality = options[:quality]
  Validation.validate_not_negative_integer quality unless quality.nil?

  lgwin = options[:lgwin]
  Validation.validate_not_negative_integer lgwin unless lgwin.nil?

  lgblock = options[:lgblock]
  Validation.validate_not_negative_integer lgblock unless lgblock.nil?

  disable_literal_context_modeling = options[:disable_literal_context_modeling]
  Validation.validate_bool disable_literal_context_modeling unless disable_literal_context_modeling.nil?

  size_hint = options[:size_hint]
  Validation.validate_not_negative_integer size_hint unless size_hint.nil?

  large_window = options[:large_window]
  Validation.validate_bool large_window unless large_window.nil?

  options
end

.get_decompressor_options(options, buffer_length_names) ⇒ Object 



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# File 'lib/brs/option.rb', line 63

def self.get_decompressor_options(options, buffer_length_names)
  Validation.validate_hash options

  buffer_length_defaults = buffer_length_names.each_with_object({}) { |name, defaults| defaults[name] = DEFAULT_BUFFER_LENGTH }
  options                = DECOMPRESSOR_DEFAULTS.merge(buffer_length_defaults).merge options

  buffer_length_names.each { |name| Validation.validate_not_negative_integer options[name] }

  disable_ring_buffer_reallocation = options[:disable_ring_buffer_reallocation]
  Validation.validate_bool disable_ring_buffer_reallocation unless disable_ring_buffer_reallocation.nil?

  large_window = options[:large_window]
  Validation.validate_bool large_window unless large_window.nil?

  options
end