anonymous_namespace{CompressorInstance.cpp} Namespace Reference

Functions
DynamicRangeProcessorSettings	GetDynamicRangeProcessorSettings (const EffectSettings &settings)
auto	GetMaxDbIncrease (const float *in, const float *out, size_t blockLen)
float	GetOutputDb (const CompressorProcessor::FrameStats &stats, const DynamicRangeProcessorSettings &settings)

Function Documentation

GetDynamicRangeProcessorSettings()

DynamicRangeProcessorSettings anonymous_namespace{CompressorInstance.cpp}::GetDynamicRangeProcessorSettings

(

const EffectSettings &

settings

)

Definition at line 78 of file CompressorInstance.cpp.

{
   if (auto pSettings = settings.cast<CompressorSettings>())
      return *pSettings;
   return *settings.cast<LimiterSettings>();
}

References settings().

Referenced by CompressorInstance::GetLatency(), CompressorInstance::InstanceInit(), and CompressorInstance::InstanceProcess().

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GetMaxDbIncrease()

auto anonymous_namespace{CompressorInstance.cpp}::GetMaxDbIncrease	(	const float *	in,
		const float *	out,
		size_t	blockLen
	)

Definition at line 85 of file CompressorInstance.cpp.

{
   auto leastRatio = 0.f;
   for (size_t i = 0; i < blockLen; ++i)
   {
      const auto absIn = std::abs(in[i]);
      if (absIn < 1e-6)
         continue;
      leastRatio = std::max(std::abs(out[i]) / absIn, leastRatio);
   }
   return leastRatio == 0 ? -std::numeric_limits<float>::infinity() :
                            log2ToDb * FastLog2(leastRatio);
}

References FastLog2(), and log2ToDb.

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GetOutputDb()

float anonymous_namespace{CompressorInstance.cpp}::GetOutputDb	(	const CompressorProcessor::FrameStats &	stats,
		const DynamicRangeProcessorSettings &	settings
	)

Definition at line 147 of file CompressorInstance.cpp.

{
   return stats.maxInputSampleDb + stats.dbGainOfMaxInputSample +
          CompressorProcessor::GetMakeupGainDb(settings);
}

References CompressorProcessor::FrameStats::dbGainOfMaxInputSample, CompressorProcessor::GetMakeupGainDb(), CompressorProcessor::FrameStats::maxInputSampleDb, and settings().

Referenced by CompressorInstance::RealtimeProcess().

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