Commit 224d2dab authored by Jean-Marc Valin's avatar Jean-Marc Valin
Browse files

celtclient udp two-way streamer. Not enabled yet because it's still tricky

to build
parent dba28a52
/*
Copyright (C) 2004-2006 Jean-Marc Valin
Copyright (C) 2006 Commonwealth Scientific and Industrial Research
Organisation (CSIRO) Australia
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#include "alsa_device.h"
#include <stdlib.h>
#include <alsa/asoundlib.h>
struct AlsaDevice_ {
char *device_name;
int channels;
int period;
snd_pcm_t *capture_handle;
snd_pcm_t *playback_handle;
int readN, writeN;
struct pollfd *read_fd, *write_fd;
};
#define PERIODS 3
AlsaDevice *alsa_device_open(char *device_name, unsigned int rate, int channels, int period)
{
int dir;
int err;
snd_pcm_hw_params_t *hw_params;
snd_pcm_sw_params_t *sw_params;
snd_pcm_uframes_t period_size = period;
snd_pcm_uframes_t buffer_size = PERIODS*period;
static snd_output_t *jcd_out;
AlsaDevice *dev = malloc(sizeof(*dev));
if (!dev)
return NULL;
dev->device_name = malloc(1+strlen(device_name));
if (!dev->device_name)
{
free(dev);
return NULL;
}
strcpy(dev->device_name, device_name);
dev->channels = channels;
dev->period = period;
err = snd_output_stdio_attach(&jcd_out, stdout, 0);
if ((err = snd_pcm_open (&dev->capture_handle, dev->device_name, SND_PCM_STREAM_CAPTURE, 0)) < 0) {
fprintf (stderr, "cannot open audio device %s (%s)\n",
dev->device_name,
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_hw_params_malloc (&hw_params)) < 0) {
fprintf (stderr, "cannot allocate hardware parameter structure (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_hw_params_any (dev->capture_handle, hw_params)) < 0) {
fprintf (stderr, "cannot initialize hardware parameter structure (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_hw_params_set_access (dev->capture_handle, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) {
fprintf (stderr, "cannot set access type (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_hw_params_set_format (dev->capture_handle, hw_params, SND_PCM_FORMAT_S16_LE)) < 0) {
fprintf (stderr, "cannot set sample format (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_hw_params_set_rate_near (dev->capture_handle, hw_params, &rate, 0)) < 0) {
fprintf (stderr, "cannot set sample rate (%s)\n",
snd_strerror (err));
assert(0);
}
/*fprintf (stderr, "rate = %d\n", rate);*/
if ((err = snd_pcm_hw_params_set_channels (dev->capture_handle, hw_params, channels)) < 0) {
fprintf (stderr, "cannot set channel count (%s)\n",
snd_strerror (err));
assert(0);
}
period_size = period;
dir = 0;
if ((err = snd_pcm_hw_params_set_period_size_near (dev->capture_handle, hw_params, &period_size, &dir)) < 0) {
fprintf (stderr, "cannot set period size (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_hw_params_set_periods (dev->capture_handle, hw_params, PERIODS, 0)) < 0) {
fprintf (stderr, "cannot set number of periods (%s)\n",
snd_strerror (err));
assert(0);
}
buffer_size = period_size * PERIODS;
dir=0;
if ((err = snd_pcm_hw_params_set_buffer_size_near (dev->capture_handle, hw_params, &buffer_size)) < 0) {
fprintf (stderr, "cannot set buffer time (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_hw_params (dev->capture_handle, hw_params)) < 0) {
fprintf (stderr, "cannot set capture parameters (%s)\n",
snd_strerror (err));
assert(0);
}
/*snd_pcm_dump_setup(dev->capture_handle, jcd_out);*/
snd_pcm_hw_params_free (hw_params);
if ((err = snd_pcm_sw_params_malloc (&sw_params)) < 0) {
fprintf (stderr, "cannot allocate software parameters structure (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_sw_params_current (dev->capture_handle, sw_params)) < 0) {
fprintf (stderr, "cannot initialize software parameters structure (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_sw_params_set_avail_min (dev->capture_handle, sw_params, period)) < 0) {
fprintf (stderr, "cannot set minimum available count (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_sw_params (dev->capture_handle, sw_params)) < 0) {
fprintf (stderr, "cannot set software parameters (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_open (&dev->playback_handle, dev->device_name, SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
fprintf (stderr, "cannot open audio device %s (%s)\n",
dev->device_name,
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_hw_params_malloc (&hw_params)) < 0) {
fprintf (stderr, "cannot allocate hardware parameter structure (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_hw_params_any (dev->playback_handle, hw_params)) < 0) {
fprintf (stderr, "cannot initialize hardware parameter structure (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_hw_params_set_access (dev->playback_handle, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) {
fprintf (stderr, "cannot set access type (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_hw_params_set_format (dev->playback_handle, hw_params, SND_PCM_FORMAT_S16_LE)) < 0) {
fprintf (stderr, "cannot set sample format (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_hw_params_set_rate_near (dev->playback_handle, hw_params, &rate, 0)) < 0) {
fprintf (stderr, "cannot set sample rate (%s)\n",
snd_strerror (err));
assert(0);
}
/*fprintf (stderr, "rate = %d\n", rate);*/
if ((err = snd_pcm_hw_params_set_channels (dev->playback_handle, hw_params, channels)) < 0) {
fprintf (stderr, "cannot set channel count (%s)\n",
snd_strerror (err));
assert(0);
}
period_size = period;
dir = 0;
if ((err = snd_pcm_hw_params_set_period_size_near (dev->playback_handle, hw_params, &period_size, &dir)) < 0) {
fprintf (stderr, "cannot set period size (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_hw_params_set_periods (dev->playback_handle, hw_params, PERIODS, 0)) < 0) {
fprintf (stderr, "cannot set number of periods (%s)\n",
snd_strerror (err));
assert(0);
}
buffer_size = period_size * PERIODS;
dir=0;
if ((err = snd_pcm_hw_params_set_buffer_size_near (dev->playback_handle, hw_params, &buffer_size)) < 0) {
fprintf (stderr, "cannot set buffer time (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_hw_params (dev->playback_handle, hw_params)) < 0) {
fprintf (stderr, "cannot set playback parameters (%s)\n",
snd_strerror (err));
assert(0);
}
/*snd_pcm_dump_setup(dev->playback_handle, jcd_out);*/
snd_pcm_hw_params_free (hw_params);
if ((err = snd_pcm_sw_params_malloc (&sw_params)) < 0) {
fprintf (stderr, "cannot allocate software parameters structure (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_sw_params_current (dev->playback_handle, sw_params)) < 0) {
fprintf (stderr, "cannot initialize software parameters structure (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_sw_params_set_avail_min (dev->playback_handle, sw_params, period)) < 0) {
fprintf (stderr, "cannot set minimum available count (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_sw_params_set_start_threshold (dev->playback_handle, sw_params, period)) < 0) {
fprintf (stderr, "cannot set start mode (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_sw_params (dev->playback_handle, sw_params)) < 0) {
fprintf (stderr, "cannot set software parameters (%s)\n",
snd_strerror (err));
assert(0);
}
snd_pcm_link(dev->capture_handle, dev->playback_handle);
if ((err = snd_pcm_prepare (dev->capture_handle)) < 0) {
fprintf (stderr, "cannot prepare audio interface for use (%s)\n",
snd_strerror (err));
assert(0);
}
if ((err = snd_pcm_prepare (dev->playback_handle)) < 0) {
fprintf (stderr, "cannot prepare audio interface for use (%s)\n",
snd_strerror (err));
assert(0);
}
dev->readN = snd_pcm_poll_descriptors_count(dev->capture_handle);
dev->writeN = snd_pcm_poll_descriptors_count(dev->playback_handle);
dev->read_fd = malloc(dev->readN*sizeof(*dev->read_fd));
/*printf ("descriptors: %d %d\n", dev->readN, dev->writeN);*/
if (snd_pcm_poll_descriptors(dev->capture_handle, dev->read_fd, dev->readN) != dev->readN)
{
fprintf (stderr, "cannot obtain capture file descriptors (%s)\n",
snd_strerror (err));
assert(0);
}
dev->write_fd = malloc(dev->writeN*sizeof(*dev->read_fd));
if (snd_pcm_poll_descriptors(dev->playback_handle, dev->write_fd, dev->writeN) != dev->writeN)
{
fprintf (stderr, "cannot obtain playback file descriptors (%s)\n",
snd_strerror (err));
assert(0);
}
return dev;
}
void alsa_device_close(AlsaDevice *dev)
{
snd_pcm_close(dev->capture_handle);
snd_pcm_close(dev->playback_handle);
free(dev->device_name);
free(dev);
}
int alsa_device_read(AlsaDevice *dev, short *pcm, int len)
{
int err;
/*fprintf (stderr, "-");*/
if ((err = snd_pcm_readi (dev->capture_handle, pcm, len)) != len)
{
if (err<0)
{
//fprintf(stderr, "error %d, EPIPE = %d\n", err, EPIPE);
if (err == -EPIPE)
{
fprintf (stderr, "An overrun has occured, reseting capture\n");
} else
{
fprintf (stderr, "read from audio interface failed (%s)\n",
snd_strerror (err));
}
if ((err = snd_pcm_prepare (dev->capture_handle)) < 0)
{
fprintf (stderr, "cannot prepare audio interface for use (%s)\n",
snd_strerror (err));
}
if ((err = snd_pcm_start (dev->capture_handle)) < 0)
{
fprintf (stderr, "cannot prepare audio interface for use (%s)\n",
snd_strerror (err));
}
/*alsa_device_read(dev,pcm,len);*/
} else {
fprintf (stderr, "Couldn't read as many samples as I wanted (%d instead of %d)\n", err, len);
}
return 1;
}
return 0;
}
int alsa_device_write(AlsaDevice *dev, const short *pcm, int len)
{
int err;
/*fprintf (stderr, "+");*/
if ((err = snd_pcm_writei (dev->playback_handle, pcm, len)) != len)
{
if (err<0)
{
if (err == -EPIPE)
{
fprintf (stderr, "An underrun has occured, reseting playback, len=%d\n", len);
} else
{
fprintf (stderr, "write to audio interface failed (%s)\n",
snd_strerror (err));
}
if ((err = snd_pcm_prepare (dev->playback_handle)) < 0)
{
fprintf (stderr, "cannot prepare audio interface for use (%s)\n",
snd_strerror (err));
}
} else {
fprintf (stderr, "Couldn't write as many samples as I wanted (%d instead of %d)\n", err, len);
}
/*alsa_device_write(dev,pcm,len);*/
return 1;
}
return 0;
}
int alsa_device_capture_ready(AlsaDevice *dev, struct pollfd *pfds, unsigned int nfds)
{
unsigned short revents=0;
int err;
if ((err = snd_pcm_poll_descriptors_revents(dev->capture_handle, pfds, dev->readN, &revents)) < 0)
{
//cerr << "error in snd_pcm_poll_descriptors_revents for capture: " << snd_strerror (err) << endl;
//FIXME: This is a kludge
fprintf (stderr, "error in alsa_device_capture_ready: %s\n", snd_strerror (err));
return pfds[0].revents & POLLIN;
}
//cerr << (revents & POLLERR) << endl;
return revents & POLLIN;
}
int alsa_device_playback_ready(AlsaDevice *dev, struct pollfd *pfds, unsigned int nfds)
{
unsigned short revents=0;
int err;
if ((err = snd_pcm_poll_descriptors_revents(dev->playback_handle, pfds+dev->readN, dev->writeN, &revents)) < 0)
{
//cerr << "error in snd_pcm_poll_descriptors_revents for playback: " << snd_strerror (err) << endl;
//FIXME: This is a kludge
fprintf (stderr, "error in alsa_device_playback_ready: %s\n", snd_strerror (err));
return pfds[1].revents & POLLOUT;
}
//cerr << (revents & POLLERR) << endl;
return revents & POLLOUT;
}
void alsa_device_start(AlsaDevice *dev)
{
int i;
short pcm[dev->period*dev->channels];
for (i=0;i<dev->period*dev->channels;i++)
pcm[i] = 0;
alsa_device_write(dev, pcm, dev->period);
alsa_device_write(dev, pcm, dev->period);
snd_pcm_start(dev->capture_handle);
snd_pcm_start(dev->playback_handle);
}
int alsa_device_nfds(AlsaDevice *dev)
{
return dev->writeN+dev->readN;
}
void alsa_device_getfds(AlsaDevice *dev, struct pollfd *pfds, unsigned int nfds)
{
int i;
assert (nfds >= dev->writeN+dev->readN);
for (i=0;i<dev->readN;i++)
pfds[i] = dev->read_fd[i];
for (i=0;i<dev->writeN;i++)
pfds[i+dev->readN] = dev->write_fd[i];
}
/*
Copyright (C) 2004-2006 Jean-Marc Valin
Copyright (C) 2006 Commonwealth Scientific and Industrial Research
Organisation (CSIRO) Australia
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef ALSA_DEVICE_H
#define ALSA_DEVICE_H
#include <sys/poll.h>
#ifdef __cplusplus
extern "C" {
#endif
struct AlsaDevice_;
typedef struct AlsaDevice_ AlsaDevice;
AlsaDevice *alsa_device_open(char *device_name, unsigned int rate, int channels, int period);
void alsa_device_close(AlsaDevice *dev);
int alsa_device_read(AlsaDevice *dev, short *pcm, int len);
int alsa_device_write(AlsaDevice *dev, const short *pcm, int len);
int alsa_device_capture_ready(AlsaDevice *dev, struct pollfd *pfds, unsigned int nfds);
int alsa_device_playback_ready(AlsaDevice *dev, struct pollfd *pfds, unsigned int nfds);
void alsa_device_start(AlsaDevice *dev);
int alsa_device_nfds(AlsaDevice *dev);
void alsa_device_getfds(AlsaDevice *dev, struct pollfd *pfds, unsigned int nfds);
#ifdef __cplusplus
}
#endif
#endif
/***************************************************************************
Copyright (C) 2004-2006 by Jean-Marc Valin
Copyright (C) 2006 Commonwealth Scientific and Industrial Research
Organisation (CSIRO) Australia
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of the Xiph.org Foundation nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
****************************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <stdio.h>
#include <unistd.h> /* close() */
#include <string.h> /* memset() */
#include "alsa_device.h"
#include <celt.h>
#include <speex/speex_echo.h>
#include <speex/speex_jitter.h>
#include <sched.h>
#define MAX_MSG 1500
#define SAMPLING_RATE 48000
#define FRAME_SIZE 256
int main(int argc, char *argv[])
{
int sd, rc, n;
int i;
struct sockaddr_in cliAddr, remoteAddr;
char msg[MAX_MSG];
struct hostent *h;
int local_port, remote_port;
int nfds;
struct pollfd *pfds;
AlsaDevice *audio_dev;
int tmp;
int packetSize = 32;
if (argc != 5)
{
fprintf(stderr, "wrong options\n");
exit(1);
}
h = gethostbyname(argv[2]);
if(h==NULL) {
fprintf(stderr, "%s: unknown host '%s' \n", argv[0], argv[1]);
exit(1);
}
local_port = atoi(argv[3]);
remote_port = atoi(argv[4]);
printf("%s: sending data to '%s' (IP : %s) \n", argv[0], h->h_name,
inet_ntoa(*(struct in_addr *)h->h_addr_list[0]));
{
remoteAddr.sin_family = h->h_addrtype;
memcpy((char *) &remoteAddr.sin_addr.s_addr,
h->h_addr_list[0], h->h_length);
remoteAddr.sin_port = htons(remote_port);
}
/* socket creation */
sd=socket(AF_INET, SOCK_DGRAM, 0);
if(sd<0) {
printf("%s: cannot open socket \n",argv[0]);
exit(1);
}
/* bind any port */
cliAddr.sin_family = AF_INET;
cliAddr.sin_addr.s_addr = htonl(INADDR_ANY);
cliAddr.sin_port = htons(local_port);
rc = bind(sd, (struct sockaddr *) &cliAddr, sizeof(cliAddr));
if(rc<0) {
printf("%s: cannot bind port\n", argv[0]);
exit(1);
}