AudioGrapher::SampleRateConverter Class Reference

Samplerate converter. More...

#include <sr_converter.h>

Inheritance diagram for AudioGrapher::SampleRateConverter:

Public Member Functions
	SampleRateConverter (uint32_t channels)
	Constructor. RT safe. More...
	~SampleRateConverter ()
void	init (samplecnt_t in_rate, samplecnt_t out_rate, int quality=0)
	Init converter Not RT safe. More...
samplecnt_t	allocate_buffers (samplecnt_t max_samples)
	Returns max amount of samples that will be output RT safe. More...
void	process (ProcessContext< float > const &c)
Public Member Functions inherited from AudioGrapher::ListedSource< float >
void	add_output (typename Source< float >::SinkPtr output)
void	clear_outputs ()
	Removes all outputs added. More...
void	remove_output (typename Source< float >::SinkPtr output)
Public Member Functions inherited from AudioGrapher::Source< T >
virtual	~Source ()
virtual void	add_output (SinkPtr output)=0
	Adds an output to this source. All data generated is forwarded to output. More...
virtual void	remove_output (SinkPtr output)=0
	Removes a specific output from this source. More...
Public Member Functions inherited from AudioGrapher::Sink< float >
virtual	~Sink ()
virtual void	process (ProcessContext< float > &context)

Private Member Functions
void	set_end_of_input (ProcessContext< float > const &c)
void	reset ()

Private Attributes
bool	active
uint32_t	channels
samplecnt_t	max_samples_in
float *	leftover_data
samplecnt_t	leftover_samples
samplecnt_t	max_leftover_samples
float *	data_out
samplecnt_t	data_out_size
SRC_DATA	src_data
SRC_STATE *	src_state

Additional Inherited Members
Public Types inherited from AudioGrapher::Source< T >
typedef std::shared_ptr< Sink< T > >	SinkPtr
Public Types inherited from AudioGrapher::FlagDebuggable< L >
typedef FlagField::Flag	Flag
Protected Types inherited from AudioGrapher::ListedSource< float >
typedef std::list< typename Source< float >::SinkPtr >	SinkList
Protected Member Functions inherited from AudioGrapher::ListedSource< float >
void	output (ProcessContext< float > const &c)
	Helper for derived classes. More...
void	output (ProcessContext< float > &c)
bool	output_size_is_one ()
Protected Member Functions inherited from AudioGrapher::FlagDebuggable< L >
void	add_supported_flag (Flag flag)
	Adds a flag to the set of flags supported. More...
template<typename SelfType , typename ContextType >
void	check_flags (SelfType &self, ProcessContext< ContextType > context)
	Prints debug output if context contains flags that are not supported by this class. More...
Protected Member Functions inherited from AudioGrapher::Debuggable< DebugNone >
	Debuggable (std::ostream &debug_stream=std::cerr)
bool	debug_level (DebugLevel level)
std::ostream &	debug_stream ()
Protected Member Functions inherited from AudioGrapher::Throwing< L >
	Throwing ()
bool	throw_level (ThrowLevel level)
Protected Attributes inherited from AudioGrapher::ListedSource< float >
SinkList	outputs

Detailed Description

Samplerate converter.

Definition at line 17 of file sr_converter.h.

Constructor & Destructor Documentation

SampleRateConverter()

AudioGrapher::SampleRateConverter::SampleRateConverter

(

uint32_t

channels

)

Constructor.
RT safe.

~SampleRateConverter()

AudioGrapher::SampleRateConverter::~SampleRateConverter

(

)

Member Function Documentation

allocate_buffers()

samplecnt_t AudioGrapher::SampleRateConverter::allocate_buffers

(

samplecnt_t

max_samples

)

Returns max amount of samples that will be output
RT safe.

init()

void AudioGrapher::SampleRateConverter::init	(	samplecnt_t	in_rate,
		samplecnt_t	out_rate,
		int	quality = 0
	)

Init converter
Not RT safe.

process()

void AudioGrapher::SampleRateConverter::process ( ProcessContext< float > const &  c )

virtual

Does sample rate conversion. Note that outpt size may vary a lot. May or may not output several contexts of data.
Should be RT safe.

Implements AudioGrapher::Sink< float >.

reset()

void AudioGrapher::SampleRateConverter::reset ( )

private

set_end_of_input()

void AudioGrapher::SampleRateConverter::set_end_of_input ( ProcessContext< float > const &  c )

private

Member Data Documentation

active

bool AudioGrapher::SampleRateConverter::active

private

Definition at line 47 of file sr_converter.h.

channels

uint32_t AudioGrapher::SampleRateConverter::channels

private

Definition at line 48 of file sr_converter.h.

data_out

float* AudioGrapher::SampleRateConverter::data_out

private

Definition at line 55 of file sr_converter.h.

data_out_size

samplecnt_t AudioGrapher::SampleRateConverter::data_out_size

private

Definition at line 56 of file sr_converter.h.

leftover_data

float* AudioGrapher::SampleRateConverter::leftover_data

private

Definition at line 51 of file sr_converter.h.

leftover_samples

samplecnt_t AudioGrapher::SampleRateConverter::leftover_samples

private

Definition at line 52 of file sr_converter.h.

max_leftover_samples

samplecnt_t AudioGrapher::SampleRateConverter::max_leftover_samples

private

Definition at line 53 of file sr_converter.h.

max_samples_in

samplecnt_t AudioGrapher::SampleRateConverter::max_samples_in

private

Definition at line 49 of file sr_converter.h.

src_data

SRC_DATA AudioGrapher::SampleRateConverter::src_data

private

Definition at line 58 of file sr_converter.h.

src_state

SRC_STATE* AudioGrapher::SampleRateConverter::src_state

private

Definition at line 59 of file sr_converter.h.

---

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

• sr_converter.h