ost::DTMFDetect Class Reference

DTMFDetect is used for detecting DTMF tones in a stream of audio. More...

#include <audio2.h>

Inheritance diagram for ost::DTMFDetect:

List of all members.

Public Member Functions
	DTMFDetect ()
	~DTMFDetect ()
int	putSamples (Linear buffer, int count)
	This routine is used to push linear audio data into the dtmf tone detection analysizer.
int	getResult (char *data, int size)
	Copy detected dtmf results into a data buffer.
Protected Member Functions
void	goertzelInit (goertzel_state_t *s, tone_detection_descriptor_t *t)
void	goertzelUpdate (goertzel_state_t *s, Sample x[], int samples)
float	goertzelResult (goertzel_state_t *s)

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Detailed Description

DTMFDetect is used for detecting DTMF tones in a stream of audio.

It currently only supports 8000Hz input.

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Constructor & Destructor Documentation

ost::DTMFDetect::DTMFDetect (   )

ost::DTMFDetect::~DTMFDetect (   )

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Member Function Documentation

int ost::DTMFDetect::getResult (  char *  data, int  size )

Copy detected dtmf results into a data buffer. Parameters: data  buffer to copy into. size  of data buffer to copy into.

void ost::DTMFDetect::goertzelInit (  goertzel_state_t *  s, tone_detection_descriptor_t *  t )  [protected]

float ost::DTMFDetect::goertzelResult (  goertzel_state_t *  s  )  [protected]

void ost::DTMFDetect::goertzelUpdate (  goertzel_state_t *  s, Sample  x[], int  samples )  [protected]

int ost::DTMFDetect::putSamples (  Linear  buffer, int  count )

This routine is used to push linear audio data into the dtmf tone detection analysizer. It may be called multiple times and results fetched later. Parameters: buffer  of audio data in native machine endian to analysize. count  of samples to analysize from buffer.

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

• audio2.h

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