Invert.cpp

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  Invert.cpp
 
  Mark Phillips
 
  This class inverts the selected audio.
 
**********************************************************************/
#include "Invert.h"
#include "LoadEffects.h"
 
Invert::Invert()
{
}
 
Invert::~Invert()
{
}
 
const ComponentInterfaceSymbol Invert::Symbol { XO("Invert") };
 
// ComponentInterface implementation
 
ComponentInterfaceSymbol Invert::GetSymbol() const
{
   return Symbol;
}
 
TranslatableString Invert::GetDescription() const
{
   return XO("Flips the audio samples upside-down, reversing their polarity");
}
 
// EffectDefinitionInterface implementation
 
EffectType Invert::GetType() const
{
   return EffectTypeProcess;
}
 
bool Invert::IsInteractive() const
{
   return false;
}
 
unsigned Invert::GetAudioInCount() const
{
   return 1;
}
 
unsigned Invert::GetAudioOutCount() const
{
   return 1;
}
 
size_t Invert::ProcessBlock(
   EffectSettings&, const float* const* inBlock, float* const* outBlock,
   size_t blockLen)
{
   const float* ibuf = inBlock[0];
   float* obuf = outBlock[0];
 
   for (decltype(blockLen) i = 0; i < blockLen; i++)
   {
      obuf[i] = -ibuf[i];
   }
 
   return blockLen;
}
 
bool Invert::NeedsDither() const
{
   return false;
}