patest_out_underflow.c File Reference

Count output underflows (using paOutputUnderflow flag) under overloaded and normal conditions. More...

#include <stdio.h>
#include <math.h>
#include "portaudio.h"

Data Structures
struct	paTestData

Macros
#define	MAX_SINES   (1000)
#define	MAX_LOAD   (1.2)
#define	SAMPLE_RATE   (44100)
#define	FRAMES_PER_BUFFER   (512)
#define	M_PI   (3.14159265)
#define	TWOPI   (M_PI * 2.0)

Typedefs
typedef struct paTestData	paTestData

Functions
int	main (void)

Detailed Description

Count output underflows (using paOutputUnderflow flag) under overloaded and normal conditions.

Author

Ross Bencina rossb.nosp@m.@aud.nosp@m.iomul.nosp@m.ch.c.nosp@m.om

Phil Burk philb.nosp@m.urk@.nosp@m.softs.nosp@m.ynth.nosp@m..com

Macro Definition Documentation

FRAMES_PER_BUFFER

#define FRAMES_PER_BUFFER   (512)

Referenced by main().

M_PI

#define M_PI   (3.14159265)

MAX_LOAD

#define MAX_LOAD   (1.2)

Referenced by main().

MAX_SINES

#define MAX_SINES   (1000)

Referenced by main().

SAMPLE_RATE

#define SAMPLE_RATE   (44100)

Referenced by main().

TWOPI

#define TWOPI   (M_PI * 2.0)

Typedef Documentation

paTestData

typedef struct paTestData paTestData

Function Documentation

main()

int main

(

void

)

References PaStreamParameters::channelCount, paTestData::countUnderflows, PaDeviceInfo::defaultLowOutputLatency, PaStreamParameters::device, FRAMES_PER_BUFFER, PaStreamParameters::hostApiSpecificStreamInfo, MAX_LOAD, MAX_SINES, paTestData::outputUnderflowCount, Pa_CloseStream(), Pa_GetDefaultOutputDevice(), Pa_GetDeviceInfo(), Pa_GetErrorText(), Pa_GetStreamCpuLoad(), Pa_Initialize(), Pa_OpenStream(), Pa_Sleep(), Pa_StartStream(), Pa_StopStream(), Pa_Terminate(), paClipOff, paFloat32, paNoDevice, paNoError, SAMPLE_RATE, PaStreamParameters::sampleFormat, paTestData::sineCount, and PaStreamParameters::suggestedLatency.