Module: Groove::Loudness

Extended by:
FFI::Library
Defined in:
lib/groove/loudness.rb

Defined Under Namespace

Classes: GrooveLoudnessDetector, GrooveLoudnessDetectorInfo

Class Method Summary collapse

Class Method Details

.attach_function(name, *_) ⇒ Object 



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# File 'lib/groove/loudness.rb', line 9

def self.attach_function(name, *_)
  begin; super; rescue FFI::NotFoundError => e
    (class << self; self; end).class_eval { define_method(name) { |*_| raise e } }
  end
end

.loudness_detector_attach(detector, playlist) ⇒ Integer

once you attach, you must detach before destroying the playlist

Parameters:

Returns:

  • (Integer) 


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# File 'lib/groove/loudness.rb', line 89

attach_function :loudness_detector_attach, :groove_loudness_detector_attach, [GrooveLoudnessDetector, :pointer], :int

.loudness_detector_create ⇒ GrooveLoudnessDetector

(Not documented)

Returns:



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# File 'lib/groove/loudness.rb', line 72

attach_function :loudness_detector_create, :groove_loudness_detector_create, [], GrooveLoudnessDetector

.loudness_detector_destroy(detector) ⇒ nil

(Not documented)

Parameters:

Returns:

  • (nil) 


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# File 'lib/groove/loudness.rb', line 80

attach_function :loudness_detector_destroy, :groove_loudness_detector_destroy, [GrooveLoudnessDetector], :void

.loudness_detector_detach(detector) ⇒ Integer

(Not documented)

Parameters:

Returns:

  • (Integer) 


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# File 'lib/groove/loudness.rb', line 97

attach_function :loudness_detector_detach, :groove_loudness_detector_detach, [GrooveLoudnessDetector], :int

.loudness_detector_info_get(detector, info, block) ⇒ Integer

returns < 0 on error, 0 on aborted (block=1) or no info ready (block=0), 1 on info returned

Parameters:

Returns:

  • (Integer) 


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# File 'lib/groove/loudness.rb', line 108

attach_function :loudness_detector_info_get, :groove_loudness_detector_info_get, [GrooveLoudnessDetector, GrooveLoudnessDetectorInfo, :int], :int

.loudness_detector_info_peek(detector, block) ⇒ Integer

returns < 0 on error, 0 on no info ready, 1 on info ready if block is 1, block until info is ready

Parameters:

Returns:

  • (Integer) 


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# File 'lib/groove/loudness.rb', line 118

attach_function :loudness_detector_info_peek, :groove_loudness_detector_info_peek, [GrooveLoudnessDetector, :int], :int

.loudness_detector_position(detector, item, seconds) ⇒ nil

get the position of the detect head both the current playlist item and the position in seconds in the playlist item are given. item will be set to NULL if the playlist is empty you may pass NULL for item or seconds

Parameters:

Returns:

  • (nil) 


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# File 'lib/groove/loudness.rb', line 131

attach_function :loudness_detector_position, :groove_loudness_detector_position, [GrooveLoudnessDetector, :pointer, :pointer], :void