146 lines
2.5 KiB
C
146 lines
2.5 KiB
C
#include <config.h>
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/*****************************************************************/
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/*** ***/
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/*** Play out a file on OpenBSD ***/
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/*** (conf/linuxplay.c with changes) ***/
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/*** ***/
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/*****************************************************************/
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#include <useconfig.h>
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#include <stdio.h>
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#include <math.h>
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#include <ctype.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <sys/param.h>
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#include <sys/signal.h>
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#include <sndio.h>
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#include "proto.h"
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#include "getargs.h"
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#include "hplay.h"
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#define SAMP_RATE 8000
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long samp_rate = SAMP_RATE;
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/* Audio Parameters */
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static struct sio_hdl *hdl;
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static struct sio_par par;
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static int linear_fd = -1;
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static char *linear_file = NULL;
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char *prog = "hplay";
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static int
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audio_open(void)
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{
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hdl = sio_open(NULL, SIO_PLAY, 0);
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if (hdl == NULL)
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{
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fprintf(stderr, "sio_open failed\n");
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return 0;
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}
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return 1;
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}
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int
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audio_init(int argc, char *argv[])
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{
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int rate_set = 0;
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int use_audio = 1;
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prog = argv[0];
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argc = getargs("OpenBSD Audio",argc, argv,
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"r", "%d", &rate_set, "Sample rate",
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"a", NULL, &use_audio, "Audio enable",
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NULL);
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if (help_only)
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return argc;
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if (rate_set)
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samp_rate = rate_set;
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if (!use_audio)
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return argc;
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audio_open();
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sio_initpar(&par);
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par.bits = 16;
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par.sig = 1;
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par.rate = samp_rate;
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par.pchan = 1;
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if (!sio_setpar(hdl, &par) || !sio_getpar(hdl, &par))
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{
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fprintf(stderr, "error setting sndio parameters\n");
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hdl = NULL;
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}
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else
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{
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if (par.bits != 16 || par.sig != 1 || par.pchan != 1 || par.rate != samp_rate)
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{
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fprintf(stderr, "returned incorrect sndio parameters\n");
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hdl = NULL;
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}
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}
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if (hdl && !sio_start(hdl))
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{
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fprintf(stderr, "error starting sndio\n");
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hdl = NULL;
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}
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return argc;
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}
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void
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audio_term()
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{
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/* Close audio system */
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if (hdl)
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{
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sio_close(hdl);
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hdl = NULL;
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}
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/* Finish linear file */
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if (linear_fd >= 0)
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{
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ftruncate(linear_fd, lseek(linear_fd, 0L, SEEK_CUR));
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close(linear_fd);
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linear_fd = -1;
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}
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}
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void
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audio_play(int n, short *data)
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{
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if (n > 0)
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{
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unsigned size = n * sizeof(short);
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if (linear_fd >= 0)
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{
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if (write(linear_fd, data, size) != size)
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perror("write");
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}
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if (hdl)
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{
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if (sio_write(hdl, data, size) != size)
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fprintf(stderr, "sio_write: short write");
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}
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}
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}
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