Represents a continuous set of data samples. More...

#include <fragment.h>

Inheritance diagram for Beatmup::Fragments::Fragment:

Public Member Functions
const int	getSampleCount () const

virtual Fragment *	clone () const =0

Fragment *	edit ()
	Enables editing of the current frame. More...

Fragment *	use ()
	References the frame when it is used one more time. More...

void	drop ()
	Dereferences the frame when it is not used any more. More...

Protected Member Functions
	Fragment ()

virtual	~Fragment ()

Protected Attributes
int	sampleCount
	number of samples within this frame More...

Private Member Functions
	Fragment (const Fragment &)=delete
	disabling copying constructor More...

Private Attributes
std::mutex	access
	exclusive access More...

unsigned int	referenceCount
	number of occurrences of this frame in sequences More...

Detailed Description

Represents a continuous set of data samples.

Definition at line 31 of file fragment.h.

Constructor & Destructor Documentation

◆ Fragment() [1/2]

Beatmup::Fragments::Fragment::Fragment ( const Fragment & )

privatedelete

disabling copying constructor

◆ Fragment() [2/2]

Fragment::Fragment ( )

protected

Definition at line 24 of file fragment.cpp.

24 : referenceCount(0), sampleCount(0) {};

Beatmup::Fragments::Fragment::referenceCount

unsigned int referenceCount

number of occurrences of this frame in sequences

Definition: fragment.h:36

Beatmup::Fragments::Fragment::sampleCount

int sampleCount

number of samples within this frame

Definition: fragment.h:39

◆ ~Fragment()

virtual Beatmup::Fragments::Fragment::~Fragment ( )

inlineprotectedvirtual

Definition at line 41 of file fragment.h.

41 {};

Member Function Documentation

◆ getSampleCount()

const int Beatmup::Fragments::Fragment::getSampleCount ( ) const

inline

Definition at line 44 of file fragment.h.

44 { return sampleCount; }

◆ clone()

virtual Fragment* Beatmup::Fragments::Fragment::clone ( ) const

pure virtual

Implemented in Beatmup::Audio::SignalFragment.

◆ edit()

Fragment * Fragment::edit ( )

Enables editing of the current frame.

Definition at line 27 of file fragment.cpp.

                          {
     std::lock_guard<std::mutex> lock(access);
     if (referenceCount > 1) {
         --referenceCount;
         Fragment* copy = clone();
         copy->referenceCount = 1;
         return copy;
     }
     return this;
 }

◆ use()

Fragment * Fragment::use ( )

References the frame when it is used one more time.

Definition at line 39 of file fragment.cpp.

                         {
     std::lock_guard<std::mutex> lock(access);
     ++referenceCount;
     return this;
 }

◆ drop()

void Fragment::drop ( )

Dereferences the frame when it is not used any more.

Definition at line 46 of file fragment.cpp.

                     {
     std::unique_lock<std::mutex> lock(access);
     if (referenceCount <= 1) {
         lock.unlock();
         delete this;
         return;
     }
     --referenceCount;
     lock.unlock();
 }

Member Data Documentation

◆ access

std::mutex Beatmup::Fragments::Fragment::access

private

exclusive access

Definition at line 35 of file fragment.h.

◆ referenceCount

unsigned int Beatmup::Fragments::Fragment::referenceCount

private

number of occurrences of this frame in sequences

Definition at line 36 of file fragment.h.

◆ sampleCount

int Beatmup::Fragments::Fragment::sampleCount