MixerOptions::Downmix Class Reference

A matrix of booleans, one row per input channel, column per output. More...

#include <MixerOptions.h>

Collaboration diagram for MixerOptions::Downmix:

Public Member Functions
	Downmix (unsigned numTracks, unsigned maxNumChannels)
	Downmix (const Downmix &mixerSpec)
	Downmix (const Downmix &mixerSpec, const std::vector< bool > &tracksMask)
	brief Copies channel map for mixerSpec for tracks specified in tracksMask More...
	~Downmix ()
bool	SetNumChannels (unsigned numChannels)
unsigned	GetNumChannels () const
unsigned	GetMaxNumChannels () const
unsigned	GetNumTracks () const
Downmix &	operator= (const Downmix &mixerSpec)

Public Attributes
ArraysOf< bool >	mMap

Private Member Functions
void	Alloc ()

Private Attributes
unsigned	mNumTracks
unsigned	mNumChannels
unsigned	mMaxNumChannels

Detailed Description

A matrix of booleans, one row per input channel, column per output.

Definition at line 32 of file MixerOptions.h.

Constructor & Destructor Documentation

Downmix() [1/3]

MixerOptions::Downmix::Downmix	(	unsigned	numTracks,
		unsigned	maxNumChannels
	)

Definition at line 62 of file MixerOptions.cpp.

{
   mNumTracks = mNumChannels = numTracks;
   mMaxNumChannels = maxNumChannels;
 
   if( mNumChannels > mMaxNumChannels )
         mNumChannels = mMaxNumChannels;
 
   Alloc();
 
   for( unsigned int i = 0; i < mNumTracks; i++ )
      for( unsigned int j = 0; j < mNumChannels; j++ )
         mMap[ i ][ j ] = ( i == j );
}

Downmix() [2/3]

MixerOptions::Downmix::Downmix

(

const Downmix &

mixerSpec

)

Definition at line 77 of file MixerOptions.cpp.

{
   mNumTracks = mixerSpec.mNumTracks;
   mMaxNumChannels = mixerSpec.mMaxNumChannels;
   mNumChannels = mixerSpec.mNumChannels;
 
   Alloc();
 
   for( unsigned int i = 0; i < mNumTracks; i++ )
      for( unsigned int j = 0; j < mNumChannels; j++ )
         mMap[ i ][ j ] = mixerSpec.mMap[ i ][ j ];
}

References mMap, mMaxNumChannels, mNumChannels, and mNumTracks.

Downmix() [3/3]

MixerOptions::Downmix::Downmix	(	const Downmix &	mixerSpec,
		const std::vector< bool > &	tracksMask
	)

brief Copies channel map for mixerSpec for tracks specified in tracksMask

Definition at line 90 of file MixerOptions.cpp.

   : mMaxNumChannels(mixerSpec.mMaxNumChannels)
   , mNumChannels(mixerSpec.mNumChannels)
{
   mNumTracks = static_cast<unsigned>(std::count(tracksMask.begin(), tracksMask.end(), true));
   Alloc();
   unsigned int dstTrackIndex = 0;
   for( unsigned int srcTrackIndex = 0; srcTrackIndex < tracksMask.size(); srcTrackIndex++ )
   {
      if(!tracksMask[srcTrackIndex])
         continue;
      
      for( unsigned int j = 0; j < mNumChannels; j++ )
         mMap[ dstTrackIndex ][ j ] = mixerSpec.mMap[ srcTrackIndex ][ j ] ;
      
      ++dstTrackIndex;
   }
}

References Alloc(), mMap, mNumChannels, and mNumTracks.

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~Downmix()

MixerOptions::Downmix::~Downmix

(

)

Definition at line 114 of file MixerOptions.cpp.

{
}

Member Function Documentation

Alloc()

void MixerOptions::Downmix::Alloc ( )

private

Definition at line 109 of file MixerOptions.cpp.

{
   mMap.reinit(mNumTracks, mMaxNumChannels);
}

Referenced by Downmix().

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GetMaxNumChannels()

unsigned MixerOptions::Downmix::GetMaxNumChannels ( ) const

inline

Definition at line 49 of file MixerOptions.h.

{ return mMaxNumChannels; }

GetNumChannels()

unsigned MixerOptions::Downmix::GetNumChannels ( ) const

inline

Definition at line 47 of file MixerOptions.h.

{ return mNumChannels; }

Referenced by ExportTaskBuilder::Build(), ExportMixerPanel::OnMouseEvent(), ExportMixerPanel::OnPaint(), and ExportMixerDialog::OnSlider().

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GetNumTracks()

unsigned MixerOptions::Downmix::GetNumTracks ( ) const

inline

Definition at line 50 of file MixerOptions.h.

{ return mNumTracks; }

Referenced by ExportMixerPanel::OnMouseEvent(), and ExportMixerPanel::OnPaint().

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operator=()

auto MixerOptions::Downmix::operator=

(

const Downmix &

mixerSpec

)

Definition at line 139 of file MixerOptions.cpp.

{
   mNumTracks = mixerSpec.mNumTracks;
   mNumChannels = mixerSpec.mNumChannels;
   mMaxNumChannels = mixerSpec.mMaxNumChannels;
 
   Alloc();
 
   for( unsigned int i = 0; i < mNumTracks; i++ )
      for( unsigned int j = 0; j < mNumChannels; j++ )
         mMap[ i ][ j ] = mixerSpec.mMap[ i ][ j ];
 
   return *this;
}

References mNumTracks.

SetNumChannels()

bool MixerOptions::Downmix::SetNumChannels

(

unsigned

numChannels

)

Definition at line 118 of file MixerOptions.cpp.

{
   if( mNumChannels == newNumChannels )
      return true;
 
   if( newNumChannels > mMaxNumChannels )
      return false;
 
   for( unsigned int i = 0; i < mNumTracks; i++ )
   {
      for( unsigned int j = newNumChannels; j < mNumChannels; j++ )
         mMap[ i ][ j ] = false;
 
      for( unsigned int j = mNumChannels; j < newNumChannels; j++ )
         mMap[ i ][ j ] = false;
   }
 
   mNumChannels = newNumChannels;
   return true;
}

Referenced by ExportMixerDialog::OnSlider().

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Member Data Documentation

mMap

ArraysOf<bool> MixerOptions::Downmix::mMap

Definition at line 38 of file MixerOptions.h.

Referenced by Downmix(), ExportMixerPanel::OnMouseEvent(), and ExportMixerPanel::OnPaint().

mMaxNumChannels

unsigned MixerOptions::Downmix::mMaxNumChannels

private

Definition at line 33 of file MixerOptions.h.

Referenced by Downmix().

mNumChannels

unsigned MixerOptions::Downmix::mNumChannels

private

Definition at line 33 of file MixerOptions.h.

Referenced by Downmix().

mNumTracks

unsigned MixerOptions::Downmix::mNumTracks

private

Definition at line 33 of file MixerOptions.h.

Referenced by Downmix(), and operator=().

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The documentation for this class was generated from the following files:

• MixerOptions.h
• MixerOptions.cpp