Method ProcessOne

libraries/lib-builtin-effects/ClickRemovalBase.cpp:130–184

}

bool ClickRemovalBase::ProcessOne(
   int count, WaveChannel& track, sampleCount start, sampleCount len)
{
   if (len <= windowSize / 2)
   {
      using namespace BasicUI;
      ShowMessageBox(
         XO("Selection must be larger than %d samples.").Format(windowSize / 2),
         MessageBoxOptions {}.IconStyle(Icon::Error));
      return false;
   }

   auto idealBlockLen = track.GetMaxBlockSize() * 4;
   if (idealBlockLen % windowSize != 0)
      idealBlockLen += (windowSize - (idealBlockLen % windowSize));

   bool bResult = true;
   decltype(len) s = 0;
   Floats buffer { idealBlockLen };
   Floats datawindow { windowSize };
   while ((len - s) > windowSize / 2)
   {
      auto block = limitSampleBufferSize(idealBlockLen, len - s);
      track.GetFloats(buffer.get(), start + s, block);
      for (decltype(block) i = 0; i + windowSize / 2 < block;
           i += windowSize / 2)
      {
         auto wcopy = std::min(windowSize, block - i);
         for (decltype(wcopy) j = 0; j < wcopy; ++j)
            datawindow[j] = buffer[i + j];
         for (auto j = wcopy; j < windowSize; ++j)
            datawindow[j] = 0;
         mbDidSomething |= RemoveClicks(windowSize, datawindow.get());
         for (decltype(wcopy) j = 0; j < wcopy; ++j)
            buffer[i + j] = datawindow[j];
      }

      if (mbDidSomething)
      {
         // RemoveClicks() actually did something.
         if (!track.SetFloats(buffer.get(), start + s, block))
         {
            bResult = false;
            break;
         }
      }
      s += block;
      if (TrackProgress(count, s.as_double() / len.as_double()))
      {
         bResult = false;
         break;
      }
   }
   return bResult;
}

bool ClickRemovalBase::RemoveClicks(size_t len, float* buffer)
{