patest_underflow.c File Reference

Simulate an output buffer underflow condition. Tests whether the stream can be stopped when underflowing buffers. More...

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

Data Structures
struct	paTestData

Macros
#define	NUM_SECONDS   (20)
#define	SAMPLE_RATE   (44100)
#define	FRAMES_PER_BUFFER   (2048)
#define	MSEC_PER_BUFFER   ( (FRAMES_PER_BUFFER * 1000) / SAMPLE_RATE )
#define	M_PI   (3.14159265)
#define	TABLE_SIZE   (200)

Functions
int	main (void)

Detailed Description

Simulate an output buffer underflow condition. Tests whether the stream can be stopped when underflowing buffers.

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   (2048)

Referenced by main().

M_PI

#define M_PI   (3.14159265)

Referenced by main().

MSEC_PER_BUFFER

#define MSEC_PER_BUFFER   ( (FRAMES_PER_BUFFER * 1000) / SAMPLE_RATE )

Referenced by main().

NUM_SECONDS

#define NUM_SECONDS   (20)

SAMPLE_RATE

#define SAMPLE_RATE   (44100)

Referenced by main().

TABLE_SIZE

#define TABLE_SIZE   (200)

Referenced by main().

Function Documentation

main()

int main

(

void

)

References PaStreamParameters::channelCount, PaDeviceInfo::defaultLowOutputLatency, PaStreamParameters::device, FRAMES_PER_BUFFER, PaStreamParameters::hostApiSpecificStreamInfo, paTestData::left_phase, M_PI, MSEC_PER_BUFFER, Pa_CloseStream(), Pa_GetDefaultOutputDevice(), Pa_GetDeviceInfo(), Pa_GetErrorText(), Pa_Initialize(), Pa_OpenStream(), Pa_Sleep(), Pa_StartStream(), Pa_StopStream(), Pa_Terminate(), paClipOff, paFloat32, paNoDevice, paNoError, paTestData::right_phase, SAMPLE_RATE, PaStreamParameters::sampleFormat, paTestData::sine, paTestData::sleepTime, PaStreamParameters::suggestedLatency, and TABLE_SIZE.