SilenceSegment.cpp

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/*  SPDX-License-Identifier: GPL-2.0-or-later */
/*!********************************************************************
 
  Audacity: A Digital Audio Editor
 
  SilenceSegment.cpp
 
  Matthieu Hodgkinson
 
**********************************************************************/
#include "SilenceSegment.h"
 
#include <algorithm>
#include <cassert>
 
SilenceSegment::SilenceSegment(size_t numChannels, sampleCount numSamples)
    : mNumChannels { numChannels }
    , mNumRemainingSamples { numSamples }
{
}
 
size_t
SilenceSegment::GetFloats(float *const *buffers, size_t numSamples)
{
   const size_t numSamplesToProduce =
      std::min<long long>(mNumRemainingSamples.as_long_long(), numSamples);
   for (auto i = 0u; i < mNumChannels; ++i)
   {
      auto buffer = buffers[i];
      std::fill(buffer, buffer + numSamplesToProduce, 0.f);
   }
   mNumRemainingSamples -= numSamplesToProduce;
   return numSamplesToProduce;
}
 
bool SilenceSegment::Empty() const
{
   return mNumRemainingSamples == 0u;
}
 
size_t SilenceSegment::NChannels() const
{
   return mNumChannels;
}