mirror of
https://github.com/thestk/stk
synced 2026-01-12 04:21:52 +00:00
82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
/******************************************/
|
|
/*
|
|
Example program to record N channels of data
|
|
by Gary P. Scavone, 2000
|
|
|
|
NOTE: This program makes use of blocking audio
|
|
input/output routines. On systems where the
|
|
underlying audio API is based on a callback scheme
|
|
(Macintosh OS-X, Windows ASIO, and Linux JACK), these
|
|
routines are not fully robust (over/underruns can
|
|
happen with some frequency). See the STK tutorial
|
|
for example programs using callback schemes and/or
|
|
visit the RtAudio tutorial page
|
|
(http://music.mcgill.ca/~gary/rtaudio/) for more
|
|
information.
|
|
|
|
This program is currently written to read
|
|
from a realtime audio input device and to
|
|
write to a WAV output file. However, it
|
|
is simple to replace the FILE_TYPE specifier
|
|
to WvOut with another file type.
|
|
*/
|
|
/******************************************/
|
|
|
|
#include "RtWvIn.h"
|
|
#include "WvOut.h"
|
|
|
|
void usage(void) {
|
|
// Error function in case of incorrect command-line
|
|
// argument specifications.
|
|
printf("\nuseage: record N file time fs \n");
|
|
printf(" where N = number of channels,\n");
|
|
printf(" file = the .wav file to create,\n");
|
|
printf(" time = the amount of time to record (in seconds),\n");
|
|
printf(" and fs = the sample rate.\n\n");
|
|
exit(0);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
// minimal command-line checking
|
|
if (argc != 5) usage();
|
|
|
|
int channels = (int) atoi(argv[1]);
|
|
double sample_rate = atof(argv[4]);
|
|
double time = atof(argv[3]);
|
|
long samples, i;
|
|
|
|
// Set the global sample rate.
|
|
Stk::setSampleRate( sample_rate );
|
|
|
|
// Initialize our WvIn/WvOut pointers.
|
|
RtWvIn *input = 0;
|
|
WvOut *output = 0;
|
|
|
|
// Open the realtime input device
|
|
try {
|
|
input = new RtWvIn(channels);
|
|
}
|
|
catch (StkError &) {
|
|
exit(0);
|
|
}
|
|
|
|
// Open the soundfile for output.
|
|
try {
|
|
output = new WvOut(argv[2], channels, WvOut::WVOUT_WAV);
|
|
}
|
|
catch (StkError &) {
|
|
goto cleanup;
|
|
}
|
|
|
|
// Here's the runtime loop
|
|
samples = (long) (time * Stk::sampleRate());
|
|
for ( i=0; i<samples; i++ )
|
|
output->tickFrame( input->tickFrame() );
|
|
|
|
cleanup:
|
|
delete input;
|
|
delete output;
|
|
return 0;
|
|
}
|