#include <AUD_SRCResampleReader.h>

Inheritance diagram for AUD_SRCResampleReader:

Public Member Functions
	AUD_SRCResampleReader (AUD_Reference< AUD_IReader > reader, AUD_Specs specs)
	~AUD_SRCResampleReader ()
long	doCallback (float **data)
virtual void	seek (int position)
virtual int	getLength () const
virtual int	getPosition () const
virtual AUD_Specs	getSpecs () const
virtual void	read (int &length, bool &eos, sample_t *buffer)

Detailed Description

This resampling reader uses libsamplerate for resampling.

Definition at line 41 of file AUD_SRCResampleReader.h.

Constructor & Destructor Documentation

AUD_SRCResampleReader::AUD_SRCResampleReader	(	AUD_Reference< AUD_IReader >	reader,
		AUD_Specs	specs
	)

Creates a resampling reader.

Parameters:

reader	The reader to mix.
specs	The target specification.

Exceptions:

AUD_Exception Thrown if the source specification cannot be resampled to the target specification.

Definition at line 44 of file AUD_SRCResampleReader.cpp.

References AUD_ERROR_SRC, AUD_THROW, error(), src_callback(), and state_error.

AUD_SRCResampleReader::~AUD_SRCResampleReader ( )

Destroys the reader.

Definition at line 64 of file AUD_SRCResampleReader.cpp.

Member Function Documentation

long AUD_SRCResampleReader::doCallback ( float ** data )

The callback function for SRC.

Warning:: Do not call!

Parameters:

data	The pointer to the float data.

Returns:: The count of samples in the float data.

Definition at line 69 of file AUD_SRCResampleReader.cpp.

References AUD_SAMPLE_SIZE, AUD_Specs::channels, AUD_Buffer::getBuffer(), AUD_Buffer::getSize(), length(), AUD_ResampleReader::m_rate, AUD_EffectReader::m_reader, and AUD_Specs::rate.

int AUD_SRCResampleReader::getLength ( ) const [virtual]

Returns an approximated length of the source in samples.

Returns:: The length as sample count. May be negative if unknown.

Reimplemented from AUD_EffectReader.

Definition at line 92 of file AUD_SRCResampleReader.cpp.

References AUD_ResampleReader::m_rate, AUD_EffectReader::m_reader, and AUD_Specs::rate.

int AUD_SRCResampleReader::getPosition ( ) const [virtual]

Returns the position of the source as a sample count value.

Returns:: The current position in the source. A negative value indicates that the position is unknown.

Warning:: The value returned doesn't always have to be correct for readers, especially after seeking.

Reimplemented from AUD_EffectReader.

Definition at line 99 of file AUD_SRCResampleReader.cpp.

AUD_Specs AUD_SRCResampleReader::getSpecs ( ) const [virtual]

Returns the specification of the reader.

Returns:: The AUD_Specs structure.

Reimplemented from AUD_EffectReader.

Definition at line 104 of file AUD_SRCResampleReader.cpp.

References AUD_ResampleReader::m_rate, AUD_EffectReader::m_reader, and AUD_Specs::rate.

void AUD_SRCResampleReader::read	(	int &	length,
		bool &	eos,
		sample_t *	buffer
	)		`[virtual]`

Request to read the next length samples out of the source. The buffer supplied has the needed size.

Parameters:

[in,out]	length	The count of samples that should be read. Shall contain the real count of samples after reading, in case there were only fewer samples available. A smaller value also indicates the end of the reader.
[out]	eos	End of stream, whether the end is reached or not.
[in]	buffer	The pointer to the buffer to read into.

Reimplemented from AUD_EffectReader.

Definition at line 111 of file AUD_SRCResampleReader.cpp.

References AUD_Buffer::assureSize(), AUD_ERROR_SRC, AUD_SAMPLE_SIZE, AUD_THROW, AUD_Specs::channels, error(), length(), AUD_ResampleReader::m_rate, AUD_EffectReader::m_reader, AUD_Specs::rate, size(), src_callback(), and state_error.

void AUD_SRCResampleReader::seek ( int position ) [virtual]

Seeks to a specific position in the source.

Parameters:

position The position to seek for measured in samples. To get from a given time to the samples you simply have to multiply the time value in seconds with the sample rate of the reader.

Warning:: This may work or not, depending on the actual reader.

Reimplemented from AUD_EffectReader.

Definition at line 83 of file AUD_SRCResampleReader.cpp.

References AUD_ResampleReader::m_rate, AUD_EffectReader::m_reader, and AUD_Specs::rate.

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

AUD_SRCResampleReader Class Reference

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation