Class: WSK::Actions::ApplyMap

Inherits:
Object
  • Object
show all
Includes:
Common
Defined in:
lib/WSK/Actions/ApplyMap.rb

Instance Method Summary collapse

Methods included from Common

#accessInputWaveFile, #accessOutputWaveFile, #getWaveFileAccesses, #parsePlugins, #readDuration, #readFFTProfile, #readThresholds, #val2db

Instance Method Details

#execute(iInputData, oOutputData) ⇒ Object

Execute

Parameters

  • iInputData (WSK::Model::InputData): The input data

  • oOutputData (Object): The output data to fill

Return

  • Exception: An error, or nil if success



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# File 'lib/WSK/Actions/ApplyMap.rb', line 33

def execute(iInputData, oOutputData)
  lTransformMap = nil
  File.open(@MapFileName, 'rb') do |iFile|
    lTransformMap = Marshal.load(iFile.read)
  end
  iInputData.each_buffer do |iBuffer, iNbrSamples, iNbrChannels|
    lTransformedBuffer = iBuffer.map do |iValue|
      if (lTransformMap[iValue] == nil)
        log_warn "Unknown value from the transform map: #{iValue}. Keeping it."
        next iValue
      else
        next lTransformMap[iValue]
      end
    end
    oOutputData.pushBuffer(lTransformedBuffer)
  end

  return nil
end

#get_nbr_samples(iInputData) ⇒ Object

Get the number of samples that will be written. This is called before execute, as it is needed to write the output file. It is possible to give a majoration: it will be padded with silence.

Parameters

  • iInputData (WSK::Model::InputData): The input data

Return

  • Integer: The number of samples to be written



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# File 'lib/WSK/Actions/ApplyMap.rb', line 22

def get_nbr_samples(iInputData)
  return iInputData.NbrSamples
end