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/******************************************/
/*
in_out.c
by Gary P. Scavone, 2001
Records from default input and passes it
through to the output. Takes number of
channels and sample rate as input arguments.
Use blocking functionality.
*/
/******************************************/
#include "RtAudio.h"
#include <iostream.h>
/*
typedef signed long MY_TYPE;
#define FORMAT RtAudio::RTAUDIO_SINT24
typedef char MY_TYPE;
#define FORMAT RtAudio::RTAUDIO_SINT8
typedef signed short MY_TYPE;
#define FORMAT RtAudio::RTAUDIO_SINT16
typedef signed long MY_TYPE;
#define FORMAT RtAudio::RTAUDIO_SINT32
typedef float MY_TYPE;
#define FORMAT RtAudio::RTAUDIO_FLOAT32
*/
typedef double MY_TYPE;
#define FORMAT RtAudio::RTAUDIO_FLOAT64
#define TIME 4.0
void usage(void) {
/* Error function in case of incorrect command-line
argument specifications
*/
cout << "\nuseage: in_out N fs\n";
cout << " where N = number of channels,\n";
cout << " and fs = the sample rate.\n\n";
exit(0);
}
int main(int argc, char *argv[])
{
int chans, fs, device, buffer_size, stream;
long frames, counter = 0;
MY_TYPE *buffer;
RtAudio *audio;
// minimal command-line checking
if (argc != 3) usage();
chans = (int) atoi(argv[1]);
fs = (int) atoi(argv[2]);
// Open the realtime output device
buffer_size = 512;
device = 0; // default device
try {
audio = new RtAudio(&stream, device, chans, device, chans,
FORMAT, fs, &buffer_size, 8);
}
catch (RtAudioError &m) {
m.printMessage();
exit(EXIT_FAILURE);
}
frames = (long) (fs * TIME);
try {
buffer = (MY_TYPE *) audio->getStreamBuffer(stream);
audio->startStream(stream);
}
catch (RtAudioError &m) {
m.printMessage();
goto cleanup;
}
cout << "\nRunning for " << TIME << " seconds ... fragment_size = " << buffer_size << endl;
while (counter < frames) {
try {
audio->tickStream(stream);
}
catch (RtAudioError &m) {
m.printMessage();
goto cleanup;
}
counter += buffer_size;
}
try {
audio->stopStream(stream);
}
catch (RtAudioError &m) {
m.printMessage();
}
cleanup:
audio->closeStream(stream);
delete audio;
return 0;
}
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