Olaf event point extractor. More...

#include "olaf_config.h"

Data Structures
struct	eventpoint
	An event point is a combination of a frequency bin, time bin and magnitude. More...

struct	extracted_event_points
	The result of event point extraction is a list of event points. More...

Typedefs
typedef struct Olaf_EP_Extractor	Olaf_EP_Extractor

Functions
Olaf_EP_Extractor *	olaf_ep_extractor_new (Olaf_Config *config)

void	olaf_ep_extractor_print_ep (struct eventpoint)

struct extracted_event_points *	olaf_ep_extractor_extract (Olaf_EP_Extractor olaf_ep_extractor, float fft_magnitudes, int audioBlockIndex)

void	olaf_ep_extractor_destroy (Olaf_EP_Extractor *olaf_ep_extractor)

Detailed Description

Olaf event point extractor.

This defines the interface on how event points (EPs or eps) are extracted from audio blocks.

Function Documentation

void olaf_ep_extractor_destroy ( Olaf_EP_Extractor * olaf_ep_extractor )

Free memory or other resources.

Parameters

olaf_ep_extractor The EP extractor to destroy.

struct extracted_event_points * olaf_ep_extractor_extract	(	Olaf_EP_Extractor *	olaf_ep_extractor,
		float *	fft_magnitudes,
		int	audioBlockIndex
	)

The actual extract method which extracts event points from the current fft magnitudes.

Parameters

olaf_ep_extractor	The EP extractor to destroy.
fft_magnitudes	The fft magnitudes for the current audio block.
audioBlockIndex	The audio block time index.

Olaf_EP_Extractor * olaf_ep_extractor_new ( Olaf_Config * config )

Initialize a new Olaf_EP_Extractor struct according to the given configuration.

Parameters

config The configuration currenlty in use.

Returns: An initialized Olaf_EP_Extractor struct or undefined if memory could not be allocated.