ARDOUR::Buffer Class Reference

#include <buffer.h>

Inheritance diagram for ARDOUR::Buffer:

Public Member Functions
virtual	~Buffer ()
size_t	capacity () const
DataType	type () const
bool	silent () const
virtual void	resize (size_t)=0
virtual void	silence (framecnt_t len, framecnt_t offset=0)=0
virtual void	clear ()
virtual void	read_from (const Buffer &src, framecnt_t len, framecnt_t dst_offset=0, framecnt_t src_offset=0)=0
virtual void	merge_from (const Buffer &src, framecnt_t len, framecnt_t dst_offset=0, framecnt_t src_offset=0)=0

Static Public Member Functions
static Buffer *	create (DataType type, size_t capacity)

Protected Member Functions
	Buffer (DataType type)

Protected Attributes
DataType	_type
pframes_t	_capacity
bool	_silent

Detailed Description

A buffer of recordable/playable data.

This is a datatype-agnostic base class for all buffers (there are no methods to actually access the data). This provides a way for code that doesn't care about the data type to still deal with buffers (which is why the base class can't be a template).

To actually read/write buffer contents, use the appropriate derived class.

Definition at line 42 of file buffer.h.

Constructor & Destructor Documentation

virtual ARDOUR::Buffer::~Buffer ( )

inlinevirtual

Definition at line 45 of file buffer.h.

ARDOUR::Buffer::Buffer ( DataType  type )

inlineprotected

Definition at line 76 of file buffer.h.

Member Function Documentation

size_t ARDOUR::Buffer::capacity ( ) const

inline

Maximum capacity of buffer.

Definition at line 51 of file buffer.h.

virtual void ARDOUR::Buffer::clear ( )

inlinevirtual

Clear the entire buffer

Definition at line 70 of file buffer.h.

Buffer * ARDOUR::Buffer::create ( DataType  type, size_t  capacity  )

static

Factory function

Definition at line 27 of file buffer.cc.

virtual void ARDOUR::Buffer::merge_from ( const Buffer &  src, framecnt_t  len, framecnt_t  dst_offset = 0, framecnt_t  src_offset = 0  )

pure virtual

Implemented in ARDOUR::AudioBuffer, and ARDOUR::MidiBuffer.

virtual void ARDOUR::Buffer::read_from ( const Buffer &  src, framecnt_t  len, framecnt_t  dst_offset = 0, framecnt_t  src_offset = 0  )

pure virtual

Implemented in ARDOUR::AudioBuffer, and ARDOUR::MidiBuffer.

virtual void ARDOUR::Buffer::resize ( size_t  )

pure virtual

Reallocate the buffer used internally to handle at least size_t units of data.

The buffer is not silent after this operation. the capacity argument passed to the constructor must have been non-zero.

Implemented in ARDOUR::AudioBuffer, and ARDOUR::MidiBuffer.

virtual void ARDOUR::Buffer::silence ( framecnt_t  len, framecnt_t  offset = 0  )

pure virtual

Clear (eg zero, or empty) buffer

Implemented in ARDOUR::MidiBuffer, and ARDOUR::AudioBuffer.

bool ARDOUR::Buffer::silent ( ) const

inline

Definition at line 57 of file buffer.h.

DataType ARDOUR::Buffer::type ( ) const

inline

Type of this buffer. Based on this you can static cast a Buffer* to the desired type.

Definition at line 55 of file buffer.h.

Member Data Documentation

pframes_t ARDOUR::Buffer::_capacity

protected

Definition at line 81 of file buffer.h.

bool ARDOUR::Buffer::_silent

protected

Definition at line 82 of file buffer.h.

DataType ARDOUR::Buffer::_type

protected

Definition at line 80 of file buffer.h.

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

• /usr/local/music/src/ardour/4.0/libs/ardour/ardour/buffer.h
• /usr/local/music/src/ardour/4.0/libs/ardour/buffer.cc