void
enc_slinear_8(int fd, audio_encoding_t *enc, int chans, int rate)
{
audio_info_t inf;
struct ausrate rt;
int8_t *samples = NULL, *p;
int i, j;
AUDIO_INITINFO(&inf);
inf.play.precision = enc->precision;
inf.play.encoding = enc->encoding;
inf.play.channels = chans;
inf.play.sample_rate = rate;;
if (ioctl(fd, AUDIO_SETINFO, &inf) == -1) {
printf("[%s]", strerror(errno));
goto out;
}
if (ioctl(fd, AUDIO_GETINFO, &inf) == -1) {
printf("[getinfo: %s]", strerror(errno));
goto out;
}
rt.r_rate = inf.play.sample_rate;
rt.s_rate = inf.play.sample_rate;
rt.bps = 1 * chans;
rt.bytes = inf.play.sample_rate * chans * PLAYSECS;
samples = (int8_t *)malloc(inf.play.sample_rate * chans);
if (samples == NULL) {
warn("malloc");
goto out;
}
for (i = 0, p = samples; i < inf.play.sample_rate; i++) {
float d;
int8_t v;
d = 127.0 * sinf(((float)i / (float)inf.play.sample_rate) *
(2 * M_PI * playfreq));
d = rintf(d);
v = d;
for (j = 0; j < chans; j++) {
*p = v;
p++;
}
}
mark_time(&rt.tv_begin);
for (i = 0; i < PLAYSECS; i++)
write(fd, samples, inf.play.sample_rate * chans);
audio_wait(fd);
mark_time(&rt.tv_end);
check_srate(&rt);
out:
if (samples != NULL)
free(samples);
}
BE_STATUS be_dns_send(struct client* cli)
{
mark_time(cli, WRITE_BE);
if (be_dns_start(cli) != BE_STARTED)
return BE_ERROR;
struct sockaddr_in in;
in.sin_family = AF_INET;
#if 0
in.sin_port = htons(53);
inet_aton("1.2.3.4", &in.sin_addr); //timeout
inet_aton("8.8.8.8", &in.sin_addr);
inet_aton("10.225.0.17", &in.sin_addr);
char dns_buffer[] = { 0x53, 0x3a, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x05, 0x74, 0x65, 0x72,
0x72, 0x61, 0x03, 0x63, 0x6f, 0x6d, 0x02, 0x62,
0x72, 0x00, 0x00, 0x01, 0x00, 0x01 };
size_t len = sizeof(dns_buffer);
#else
in.sin_port = htons(7);
inet_aton("127.0.0.1", &in.sin_addr);
char dns_buffer[] = "Hello World!";
size_t len = sizeof(dns_buffer) - 1;
#endif
const int ret = sendto(cli->fd_be, dns_buffer, len, 0, (struct sockaddr *)&in, sizeof(in));
return ret == len ? BE_SENT_REQ :
ret < len ? BE_SENT_REQ_PARTIAL :
BE_SEND_ERROR;
}
void be_dns_read_cb(struct ev_loop *loop, struct ev_io *w, int revents)
{
struct client *cli = ((struct client*) (((char*)w) - offsetof(struct client, ev_read)));
ev_timer_stop(EV_A_ &cli->ev_tout);
mark_time(cli, READ_BE);
char dns_buffer[4096];
int ret = recv(cli->fd_be, dns_buffer, sizeof(dns_buffer), 0);
if (ret <= 0) {
ev_io_stop(EV_A_ w);
delete_client(cli);
return;
}
dns_buffer[ret] = 0;
printf("recv: %s\n", dns_buffer);
if (ret > 0) {
cli->status = 200;
} else {
cli->status = 404;
}
ev_io_stop(EV_A_ w);
ev_io_init(&cli->ev_write, cli->write_cb, cli->fd, EV_WRITE);
ev_io_start(loop, &cli->ev_write);
}
