patest_wire.c File Reference

Pass input directly to output. More...

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

Data Structures
struct	WireConfig_s

Macros
#define	SAMPLE_RATE   (44100)
#define	USE_FLOAT_INPUT   (1)
#define	USE_FLOAT_OUTPUT   (1)
#define	INPUT_FORMAT   paFloat32
#define	OUTPUT_FORMAT   paFloat32
#define	CONVERT_IN_TO_OUT(in)
#define	INPUT_DEVICE   (Pa_GetDefaultInputDevice())
#define	OUTPUT_DEVICE   (Pa_GetDefaultOutputDevice())
#define	CHECK_FLAG_COUNT(member)

Typedefs
typedef struct WireConfig_s	WireConfig_t
typedef float	INPUT_SAMPLE
typedef float	OUTPUT_SAMPLE

Functions
int	main (void)

Variables
double	gInOutScaler = 1.0

Detailed Description

Pass input directly to output.

Note that some HW devices, for example many ISA audio cards on PCs, do NOT support full duplex! For a PC, you normally need a PCI based audio card such as the SBLive.

Author

Phil Burk http://www.softsynth.com

While adapting to V19-API, I excluded configs with framesPerCallback=0 because of an assert in file pa_common/pa_process.c. Pieter, Oct 9, 2003.

Macro Definition Documentation

CHECK_FLAG_COUNT

#define CHECK_FLAG_COUNT

(

member

)

Value:

    if( config->member > 0 ) printf("FLAGS SET: " #member " = %d\n", config->member );

CONVERT_IN_TO_OUT

#define CONVERT_IN_TO_OUT

(

in

)

Value:

((OUTPUT_SAMPLE) ((in) * gInOutScaler))

INPUT_DEVICE

#define INPUT_DEVICE   (Pa_GetDefaultInputDevice())

Referenced by main().

INPUT_FORMAT

#define INPUT_FORMAT   paFloat32

Referenced by main().

OUTPUT_DEVICE

#define OUTPUT_DEVICE   (Pa_GetDefaultOutputDevice())

Referenced by main().

OUTPUT_FORMAT

#define OUTPUT_FORMAT   paFloat32

Referenced by main().

SAMPLE_RATE

#define SAMPLE_RATE   (44100)

USE_FLOAT_INPUT

#define USE_FLOAT_INPUT   (1)

USE_FLOAT_OUTPUT

#define USE_FLOAT_OUTPUT   (1)

Typedef Documentation

INPUT_SAMPLE

typedef float INPUT_SAMPLE

OUTPUT_SAMPLE

typedef float OUTPUT_SAMPLE

WireConfig_t

typedef struct WireConfig_s WireConfig_t

Function Documentation

main()

int main

(

void

)

References WireConfig_s::framesPerCallback, gInOutScaler, INPUT_DEVICE, INPUT_FORMAT, WireConfig_s::inputDevice, WireConfig_s::isInputInterleaved, WireConfig_s::isOutputInterleaved, PaDeviceInfo::maxInputChannels, PaDeviceInfo::maxOutputChannels, WireConfig_s::numInputChannels, WireConfig_s::numOutputChannels, OUTPUT_DEVICE, OUTPUT_FORMAT, WireConfig_s::outputDevice, Pa_GetDeviceInfo(), Pa_GetErrorText(), Pa_Initialize(), Pa_Terminate(), paFloat32, paInt16, paNoDevice, and paNoError.

Variable Documentation

gInOutScaler

double gInOutScaler = 1.0

Referenced by main().