int audio_alloc(struct audio **ap, const struct config *cfg,
struct call *call, struct sdp_session *sdp_sess, int label,
const struct mnat *mnat, struct mnat_sess *mnat_sess,
const struct menc *menc, struct menc_sess *menc_sess,
uint32_t ptime, const struct list *aucodecl,
audio_event_h *eventh, audio_err_h *errh, void *arg)
{
struct audio *a;
struct autx *tx;
struct aurx *rx;
struct le *le;
int err;
if (!ap || !cfg)
return EINVAL;
a = mem_zalloc(sizeof(*a), audio_destructor);
if (!a)
return ENOMEM;
MAGIC_INIT(a);
a->cfg = cfg->audio;
tx = &a->tx;
rx = &a->rx;
err = stream_alloc(&a->strm, &cfg->avt, call, sdp_sess,
"audio", label,
mnat, mnat_sess, menc, menc_sess,
stream_recv_handler, NULL, a);
if (err)
goto out;
stream_set_bw(a->strm, AUDIO_BANDWIDTH);
err = sdp_media_set_lattr(stream_sdpmedia(a->strm), true,
"ptime", "%u", ptime);
if (err)
goto out;
/* Audio codecs */
for (le = list_head(aucodecl); le; le = le->next) {
err = add_audio_codec(a, stream_sdpmedia(a->strm), le->data);
if (err)
goto out;
}
tx->mb = mbuf_alloc(STREAM_PRESZ + 4096);
tx->sampv = mem_zalloc(AUDIO_SAMPSZ * 2, NULL);
rx->sampv = mem_zalloc(AUDIO_SAMPSZ * 2, NULL);
if (!tx->mb || !tx->sampv || !rx->sampv) {
err = ENOMEM;
goto out;
}
err = telev_alloc(&a->telev, TELEV_PTIME);
if (err)
goto out;
err = add_telev_codec(a);
if (err)
goto out;
tx->ptime = ptime;
tx->ts = 160;
tx->marker = true;
rx->pt = -1;
rx->ptime = ptime;
a->eventh = eventh;
a->errh = errh;
a->arg = arg;
if (a->cfg.txmode == AUDIO_MODE_TMR)
tmr_init(&tx->u.tmr);
out:
if (err)
mem_deref(a);
else
*ap = a;
return err;
}
int test_telev(void)
{
static const char digits[] = "1234567890ABCD*#";
struct telev *tlv = NULL;
struct mbuf *mb;
bool marker, expect_end = false;
char digit;
size_t i;
int err;
mb = mbuf_alloc(512);
if (!mb)
return ENOMEM;
err = telev_alloc(&tlv, 1);
if (err)
goto out;
/* Encode all digits */
for (i=0; i<strlen(digits) && !err; i++) {
digit = telev_digit2code(digits[i]);
err |= telev_send(tlv, digit, false);
err |= telev_send(tlv, digit, true);
}
if (err)
goto out;
while (0 == telev_poll(tlv, &marker, mb))
;
/* Decode all digits */
mb->pos = 0;
i = 0;
while (mbuf_get_left(mb) && i<strlen(digits)) {
int event;
bool end;
if (telev_recv(tlv, mb, &event, &end))
continue;
digit = telev_code2digit(event);
if (digits[i] != digit) {
(void)re_fprintf(stderr, "telev: expect %c, got %c\n",
digits[i], digit);
err = EBADMSG;
break;
}
if (!expect_end != !end) {
err = EBADMSG;
break;
}
expect_end = !end;
if (end)
++i;
}
if (i != strlen(digits))
err = EBADMSG;
out:
mem_deref(tlv);
mem_deref(mb);
return err;
}
