MyTransformer Struct Reference

Inheritance diagram for MyTransformer:

Collaboration diagram for MyTransformer:

Classes
struct	MyWindow

Public Member Functions
	MyTransformer (EffectNoiseReduction::Worker &worker, WaveChannel *pOutputTrack, bool needsOutput, eWindowFunctions inWindowType, eWindowFunctions outWindowType, size_t windowSize, unsigned stepsPerWindow, bool leadingPadding, bool trailingPadding)
MyWindow &	NthWindow (int nn)
std::unique_ptr< Window >	NewWindow (size_t windowSize) override
	Allocates a window to place in the queue. More...
bool	DoStart () override
	Called before any calls to ProcessWindow. More...
bool	DoFinish () override
	Called after the last call to ProcessWindow(). More...
Public Member Functions inherited from TrackSpectrumTransformer
	TrackSpectrumTransformer (WaveChannel *pOutputTrack, bool needsOutput, eWindowFunctions inWindowType, eWindowFunctions outWindowType, size_t windowSize, unsigned stepsPerWindow, bool leadingPadding, bool trailingPadding)
	~TrackSpectrumTransformer () override
bool	Process (const WindowProcessor &processor, const WaveChannel &channel, size_t queueLength, sampleCount start, sampleCount len)
	Invokes Start(), ProcessSamples(), and Finish() More...
Public Member Functions inherited from SpectrumTransformer
	SpectrumTransformer (bool needsOutput, eWindowFunctions inWindowType, eWindowFunctions outWindowType, size_t windowSize, unsigned stepsPerWindow, bool leadingPadding, bool trailingPadding)
virtual	~SpectrumTransformer ()
bool	NeedsOutput () const
bool	Start (size_t queueLength)
	Call once before a sequence of calls to ProcessSamples; Invokes DoStart. More...
bool	ProcessSamples (const WindowProcessor &processor, const float *buffer, size_t len)
	Call multiple times. More...
bool	Finish (const WindowProcessor &processor)
virtual std::unique_ptr< Window >	NewWindow (size_t windowSize)
	Allocates a window to place in the queue. More...
virtual bool	DoStart ()
	Called before any calls to ProcessWindow. More...
virtual void	DoOutput (const float *outBuffer, size_t mStepSize)=0
	Called within ProcessSamples if output was requested. More...
virtual bool	DoFinish ()
	Called after the last call to ProcessWindow(). More...
size_t	TotalQueueSize () const
	Useful functions to implement WindowProcesser: More...
size_t	CurrentQueueSize () const
	How many windows in the queue have been filled? More...
bool	QueueIsFull () const
Window &	Nth (int n)
	Access the queue, so you can inspect and modify any window in it. More...
Window &	Newest ()
Window &	Latest ()

Public Attributes
EffectNoiseReduction::Worker &	mWorker

Additional Inherited Members
Public Types inherited from SpectrumTransformer
using	FloatVector = std::vector< float >
using	WindowProcessor = std::function< bool(SpectrumTransformer &) >
	Type of function that transforms windows in the queue. More...
Static Public Member Functions inherited from TrackSpectrumTransformer
static bool	PostProcess (WaveTrack &outputTrack, sampleCount len)
	Final flush and trimming of tail samples. More...
Protected Member Functions inherited from TrackSpectrumTransformer
bool	DoStart () override
	Called before any calls to ProcessWindow. More...
void	DoOutput (const float *outBuffer, size_t mStepSize) override
	Called within ProcessSamples if output was requested. More...
bool	DoFinish () override
	Called after the last call to ProcessWindow(). More...
Protected Attributes inherited from SpectrumTransformer
const size_t	mWindowSize
const size_t	mSpectrumSize
const unsigned	mStepsPerWindow
const size_t	mStepSize
const bool	mLeadingPadding
const bool	mTrailingPadding

Detailed Description

Definition at line 254 of file NoiseReduction.cpp.

Constructor & Destructor Documentation

MyTransformer()

MyTransformer::MyTransformer ( EffectNoiseReduction::Worker &  worker, WaveChannel *  pOutputTrack, bool  needsOutput, eWindowFunctions  inWindowType, eWindowFunctions  outWindowType, size_t  windowSize, unsigned  stepsPerWindow, bool  leadingPadding, bool  trailingPadding  )

inline

Definition at line 255 of file NoiseReduction.cpp.

      : TrackSpectrumTransformer{ pOutputTrack,
         needsOutput, inWindowType, outWindowType,
         windowSize, stepsPerWindow, leadingPadding, trailingPadding
      }
      , mWorker{ worker }
   {
   }

Member Function Documentation

DoFinish()

bool MyTransformer::DoFinish ( )

overridevirtual

Called after the last call to ProcessWindow().

Returns

false to abort processing. Default implementation just returns true.

Reimplemented from SpectrumTransformer.

Definition at line 1206 of file NoiseReduction.cpp.

{
   if (mWorker.mDoProfile)
      mWorker.FinishTrackStatistics();
   return TrackSpectrumTransformer::DoFinish();
}

References TrackSpectrumTransformer::DoFinish().

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DoStart()

bool MyTransformer::DoStart ( )

overridevirtual

Called before any calls to ProcessWindow.

More queue initializations can be done here.

Returns

false to abort processing. Default implementation just returns true.

Reimplemented from SpectrumTransformer.

Definition at line 907 of file NoiseReduction.cpp.

{
   for (size_t ii = 0, nn = TotalQueueSize(); ii < nn; ++ii) {
      MyWindow &record = NthWindow(ii);
      std::fill(record.mSpectrums.begin(), record.mSpectrums.end(), 0.0);
      std::fill(record.mGains.begin(), record.mGains.end(),
         mWorker.mNoiseAttenFactor);
   }
   return TrackSpectrumTransformer::DoStart();
}

References TrackSpectrumTransformer::DoStart(), MyTransformer::MyWindow::mGains, and MyTransformer::MyWindow::mSpectrums.

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NewWindow()

auto MyTransformer::NewWindow ( size_t  windowSize )

overridevirtual

Allocates a window to place in the queue.

Only when initializing – windows are recycled thereafter. You can derive from Window to add fields, and then override this factory function.

Reimplemented from SpectrumTransformer.

Definition at line 626 of file NoiseReduction.cpp.

{
   return std::make_unique<MyWindow>(windowSize);
}

NthWindow()

MyWindow & MyTransformer::NthWindow ( int  nn )

inline

Definition at line 280 of file NoiseReduction.cpp.

{ return static_cast<MyWindow&>(Nth(nn)); }

Referenced by EffectNoiseReduction::Worker::Classify(), EffectNoiseReduction::Worker::GatherStatistics(), and EffectNoiseReduction::Worker::ReduceNoise().

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Member Data Documentation

mWorker

EffectNoiseReduction::Worker& MyTransformer::mWorker

Definition at line 285 of file NoiseReduction.cpp.

Referenced by EffectNoiseReduction::Worker::Processor().

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The documentation for this struct was generated from the following file:

• NoiseReduction.cpp