49 lines
1.0 KiB
C
49 lines
1.0 KiB
C
/**
|
|
* @brief play - Play back PCM samples
|
|
*
|
|
* This needs very specifically-formatted PCM data to function
|
|
* properly - 16-bit, signed, stereo, little endian, and 48KHz.
|
|
*
|
|
* TODO This should be fixed up to play back WAV files properly.
|
|
* We have a sample rate convert in the out-of-repo playmp3
|
|
*
|
|
* @copyright
|
|
* This file is part of ToaruOS and is released under the terms
|
|
* of the NCSA / University of Illinois License - see LICENSE.md
|
|
* Copyright (C) 2015-2018 K. Lange
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
|
|
#include <sys/ioctl.h>
|
|
|
|
int main(int argc, char * argv[]) {
|
|
int spkr = open("/dev/dsp", O_WRONLY);
|
|
int song;
|
|
if (!strcmp(argv[1], "-")) {
|
|
song = STDIN_FILENO;
|
|
} else {
|
|
song = open(argv[1], O_RDONLY);
|
|
}
|
|
|
|
if (spkr == -1) {
|
|
fprintf(stderr, "no dsp\n");
|
|
return 1;
|
|
}
|
|
|
|
if (song == -1) {
|
|
fprintf(stderr, "audio file not found\n");
|
|
return 2;
|
|
}
|
|
|
|
char buf[0x1000];
|
|
int r;
|
|
while ((r = read(song, buf, sizeof(buf)))) {
|
|
write(spkr, buf, r);
|
|
}
|
|
return 0;
|
|
}
|