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mpv/stream/ai_sndio.c

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#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include <sndio.h>
#include "audio_in.h"
#include "common/msg.h"
int ai_sndio_setup(audio_in_t *ai)
{
struct sio_par par;
sio_initpar(&par);
par.bits = 16;
par.sig = 1;
par.le = SIO_LE_NATIVE;
par.rchan = ai->req_channels;
par.rate = ai->req_samplerate;
par.appbufsz = ai->req_samplerate; /* 1 sec */
if (!sio_setpar(ai->sndio.hdl, &par) || !sio_getpar(ai->sndio.hdl, &par)) {
MP_ERR(ai, "could not configure sndio audio");
return -1;
}
ai->channels = par.rchan;
ai->samplerate = par.rate;
ai->samplesize = par.bits;
ai->bytes_per_sample = par.bps;
ai->blocksize = par.round * par.bps;
return 0;
}
int ai_sndio_init(audio_in_t *ai)
{
int err;
const char *device = ai->sndio.device;
if (!device)
device = "default";
if ((ai->sndio.hdl = sio_open(device, SIO_REC, 0)) == NULL) {
MP_ERR(ai, "could not open sndio audio");
return -1;
}
err = ai_sndio_setup(ai);
return err;
}