Class: WSK::Actions::GenAllValues

Inherits:
Object
  • Object
show all
Defined in:
lib/WSK/Actions/GenAllValues.rb

Constant Summary collapse

MAX_BUFFER_SAMPLES = 
65536

Instance Method Summary collapse

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/GenAllValues.rb', line 36

def execute(iInputData, oOutputData)
  # Create buffer
  lNbrBuffers = ((@MaxValue-@MinValue+1) / MAX_BUFFER_SAMPLES)+1
  lSizeofLastBuffer = ((@MaxValue-@MinValue+1) % MAX_BUFFER_SAMPLES)
  lIdxValue = @MinValue
  log_debug "Will output #{@MaxValue-@MinValue+1} samples in #{lNbrBuffers} buffers."
  lNbrBuffers.times do |iIdxBuffer|
    lBuffer = []
    lSamplesInBuffer = nil
    if (iIdxBuffer == lNbrBuffers-1)
      # The last one
      lSamplesInBuffer = lSizeofLastBuffer
    else
      lSamplesInBuffer = MAX_BUFFER_SAMPLES
    end
    lSamplesInBuffer.times do |iIdxSampleBuffer|
      iInputData.Header.NbrChannels.times do |iIdxChannel|
        lBuffer << lIdxValue
      end
      lIdxValue += 1
    end
    oOutputData.pushBuffer(lBuffer)
  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/GenAllValues.rb', line 22

def get_nbr_samples(iInputData)
  @MaxValue = 2**(iInputData.Header.NbrBitsPerSample-1)-1
  @MinValue = -2**(iInputData.Header.NbrBitsPerSample-1)

  return @MaxValue-@MinValue+1
end