int
main (int argc, char *argv[])
{
/* Some startup related basics */
char *client_name, *server_name = NULL, *peer_ip;
int peer_port = 3000;
jack_options_t options = JackNullOption;
jack_status_t status;
#ifdef WIN32
WSADATA wsa;
int rc = WSAStartup(MAKEWORD(2, 0), &wsa);
#endif
/* Torben's famous state variables, aka "the reporting API" ! */
/* heh ? these are only the copies of them ;) */
int statecopy_connected, statecopy_latency, statecopy_netxruns;
jack_nframes_t net_period;
/* Argument parsing stuff */
extern char *optarg;
extern int optind, optopt;
int errflg = 0, c;
if (argc < 3) {
printUsage ();
return 1;
}
client_name = (char *) malloc (sizeof (char) * 10);
peer_ip = (char *) malloc (sizeof (char) * 10);
sprintf(client_name, "netjack");
sprintf(peer_ip, "localhost");
while ((c = getopt (argc, argv, ":h:H:o:i:O:I:n:p:r:B:b:c:m:R:e:N:s:P:")) != -1) {
switch (c) {
case 'h':
printUsage();
exit (0);
break;
case 'H':
free(peer_ip);
peer_ip = (char *) malloc (sizeof (char) * strlen (optarg) + 1);
strcpy (peer_ip, optarg);
break;
case 'o':
playback_channels_audio = atoi (optarg);
break;
case 'i':
capture_channels_audio = atoi (optarg);
break;
case 'O':
playback_channels_midi = atoi (optarg);
break;
case 'I':
capture_channels_midi = atoi (optarg);
break;
case 'n':
latency = atoi (optarg);
break;
case 'p':
peer_port = atoi (optarg);
break;
case 'r':
reply_port = atoi (optarg);
break;
case 'B':
bind_port = atoi (optarg);
break;
case 'f':
factor = atoi (optarg);
printf("This feature is deprecated and will be removed in future netjack versions. CELT offers a superiour way to conserve bandwidth");
break;
case 'b':
bitdepth = atoi (optarg);
break;
case 'c':
#if HAVE_CELT
bitdepth = 1000;
factor = atoi (optarg);
#else
printf( "not built with celt support\n" );
exit(10);
#endif
break;
case 'P':
#if HAVE_OPUS
bitdepth = 999;
factor = atoi (optarg);
#else
printf( "not built with opus support\n" );
exit(10);
#endif
break;
case 'm':
mtu = atoi (optarg);
break;
case 'R':
redundancy = atoi (optarg);
break;
case 'e':
dont_htonl_floats = 1;
break;
case 'N':
free(client_name);
client_name = (char *) malloc (sizeof (char) * strlen (optarg) + 1);
strcpy (client_name, optarg);
break;
case 's':
server_name = (char *) malloc (sizeof (char) * strlen (optarg) + 1);
strcpy (server_name, optarg);
options |= JackServerName;
break;
case ':':
fprintf (stderr, "Option -%c requires an operand\n", optopt);
errflg++;
break;
case '?':
fprintf (stderr, "Unrecognized option: -%c\n", optopt);
errflg++;
}
}
if (errflg) {
printUsage ();
exit (2);
}
capture_channels = capture_channels_audio + capture_channels_midi;
playback_channels = playback_channels_audio + playback_channels_midi;
outsockfd = socket (AF_INET, SOCK_DGRAM, 0);
insockfd = socket (AF_INET, SOCK_DGRAM, 0);
if ((outsockfd == -1) || (insockfd == -1)) {
fprintf (stderr, "cant open sockets\n" );
return 1;
}
init_sockaddr_in ((struct sockaddr_in *) &destaddr, peer_ip, peer_port);
if (bind_port) {
init_sockaddr_in ((struct sockaddr_in *) &bindaddr, NULL, bind_port);
if( bind (outsockfd, &bindaddr, sizeof (bindaddr)) ) {
fprintf (stderr, "bind failure\n" );
}
}
if (reply_port) {
init_sockaddr_in ((struct sockaddr_in *) &bindaddr, NULL, reply_port);
if( bind (insockfd, &bindaddr, sizeof (bindaddr)) ) {
fprintf (stderr, "bind failure\n" );
}
}
/* try to become a client of the JACK server */
client = jack_client_open (client_name, options, &status, server_name);
if (client == NULL) {
fprintf (stderr, "jack_client_open() failed, status = 0x%2.0x\n"
"Is the JACK server running ?\n", status);
return 1;
}
/* Set up jack callbacks */
jack_set_process_callback (client, process, 0);
jack_set_sync_callback (client, sync_cb, 0);
jack_set_freewheel_callback (client, freewheel_cb, 0);
jack_on_shutdown (client, jack_shutdown, 0);
alloc_ports (capture_channels_audio, playback_channels_audio, capture_channels_midi, playback_channels_midi);
if( bitdepth == 1000 || bitdepth == 999)
net_period = (factor * jack_get_buffer_size(client) * 1024 / jack_get_sample_rate(client) / 8) & (~1) ;
else
net_period = ceilf((float) jack_get_buffer_size (client) / (float) factor);
int rx_bufsize = get_sample_size (bitdepth) * capture_channels * net_period + sizeof (jacknet_packet_header);
packcache = packet_cache_new (latency + 50, rx_bufsize, mtu);
/* tell the JACK server that we are ready to roll */
if (jack_activate (client)) {
fprintf (stderr, "Cannot activate client");
return 1;
}
/* Now sleep forever... and evaluate the state_ vars */
signal( SIGTERM, sigterm_handler );
signal( SIGINT, sigterm_handler );
statecopy_connected = 2; // make it report unconnected on start.
statecopy_latency = state_latency;
statecopy_netxruns = state_netxruns;
while ( !quit ) {
#ifdef WIN32
Sleep (1000);
#else
sleep(1);
#endif
if (statecopy_connected != state_connected) {
statecopy_connected = state_connected;
if (statecopy_connected) {
state_netxruns = 1; // We want to reset the netxrun count on each new connection
printf ("Connected :-)\n");
} else
printf ("Not Connected\n");
fflush(stdout);
}
if (statecopy_connected) {
if (statecopy_netxruns != state_netxruns) {
statecopy_netxruns = state_netxruns;
printf ("%s: at frame %06d -> total netxruns %d (%d%%) queue time= %d\n",
client_name,
state_currentframe,
statecopy_netxruns,
100 * statecopy_netxruns / state_currentframe,
state_recv_packet_queue_time);
fflush(stdout);
}
} else {
if (statecopy_latency != state_latency) {
statecopy_latency = state_latency;
if (statecopy_latency > 1)
printf ("current latency %d\n", statecopy_latency);
fflush(stdout);
}
}
}
jack_client_close (client);
packet_cache_free (packcache);
exit (0);
}
int
netjack_startup( netjack_driver_state_t *netj )
{
int first_pack_len;
struct sockaddr_in address;
// Now open the socket, and wait for the first packet to arrive...
netj->sockfd = socket (AF_INET, SOCK_DGRAM, 0);
#ifdef WIN32
if (netj->sockfd == INVALID_SOCKET)
#else
if (netj->sockfd == -1)
#endif
{
jack_info ("socket error");
return -1;
}
address.sin_family = AF_INET;
address.sin_port = htons(netj->listen_port);
address.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind (netj->sockfd, (struct sockaddr *) &address, sizeof (address)) < 0)
{
jack_info("bind error");
return -1;
}
netj->outsockfd = socket (AF_INET, SOCK_DGRAM, 0);
#ifdef WIN32
if (netj->outsockfd == INVALID_SOCKET)
#else
if (netj->outsockfd == -1)
#endif
{
jack_info ("socket error");
return -1;
}
netj->srcaddress_valid = 0;
if (netj->use_autoconfig)
{
jacknet_packet_header *first_packet = alloca (sizeof (jacknet_packet_header));
#ifdef WIN32
int address_size = sizeof( struct sockaddr_in );
#else
socklen_t address_size = sizeof (struct sockaddr_in);
#endif
//jack_info ("Waiting for an incoming packet !!!");
//jack_info ("*** IMPORTANT *** Dont connect a client to jackd until the driver is attached to a clock source !!!");
while(1) {
if( ! netjack_poll( netj->sockfd, 1000 ) ) {
jack_info ("Waiting aborted");
return -1;
}
first_pack_len = recvfrom (netj->sockfd, (char *)first_packet, sizeof (jacknet_packet_header), 0, (struct sockaddr*) & netj->syncsource_address, &address_size);
#ifdef WIN32
if( first_pack_len == -1 ) {
first_pack_len = sizeof(jacknet_packet_header);
break;
}
#else
if (first_pack_len == sizeof (jacknet_packet_header))
break;
#endif
}
netj->srcaddress_valid = 1;
if (first_pack_len == sizeof (jacknet_packet_header))
{
packet_header_ntoh (first_packet);
jack_info ("AutoConfig Override !!!");
if (netj->sample_rate != first_packet->sample_rate)
{
jack_info ("AutoConfig Override: Master JACK sample rate = %d", first_packet->sample_rate);
netj->sample_rate = first_packet->sample_rate;
}
if (netj->period_size != first_packet->period_size)
{
jack_info ("AutoConfig Override: Master JACK period size is %d", first_packet->period_size);
netj->period_size = first_packet->period_size;
}
if (netj->capture_channels_audio != first_packet->capture_channels_audio)
{
jack_info ("AutoConfig Override: capture_channels_audio = %d", first_packet->capture_channels_audio);
netj->capture_channels_audio = first_packet->capture_channels_audio;
}
if (netj->capture_channels_midi != first_packet->capture_channels_midi)
{
jack_info ("AutoConfig Override: capture_channels_midi = %d", first_packet->capture_channels_midi);
netj->capture_channels_midi = first_packet->capture_channels_midi;
}
if (netj->playback_channels_audio != first_packet->playback_channels_audio)
{
jack_info ("AutoConfig Override: playback_channels_audio = %d", first_packet->playback_channels_audio);
netj->playback_channels_audio = first_packet->playback_channels_audio;
}
if (netj->playback_channels_midi != first_packet->playback_channels_midi)
{
jack_info ("AutoConfig Override: playback_channels_midi = %d", first_packet->playback_channels_midi);
netj->playback_channels_midi = first_packet->playback_channels_midi;
}
netj->mtu = first_packet->mtu;
jack_info ("MTU is set to %d bytes", first_packet->mtu);
netj->latency = first_packet->latency;
}
}
netj->capture_channels = netj->capture_channels_audio + netj->capture_channels_midi;
netj->playback_channels = netj->playback_channels_audio + netj->playback_channels_midi;
if( (netj->capture_channels * netj->period_size * netj->latency * 4) > 100000000 ) {
jack_error( "autoconfig requests more than 100MB packet cache... bailing out" );
exit(1);
}
if( netj->playback_channels > 1000 ) {
jack_error( "autoconfig requests more than 1000 playback channels... bailing out" );
exit(1);
}
if( netj->mtu < (2*sizeof( jacknet_packet_header )) ) {
jack_error( "bullshit mtu requested by autoconfig" );
exit(1);
}
if( netj->sample_rate == 0 ) {
jack_error( "sample_rate 0 requested by autoconfig" );
exit(1);
}
// After possible Autoconfig: do all calculations...
netj->period_usecs =
(jack_time_t) floor ((((float) netj->period_size) / (float)netj->sample_rate)
* 1000000.0f);
if( netj->latency == 0 )
netj->deadline_offset = 50*netj->period_usecs;
else
netj->deadline_offset = netj->period_usecs + 10*netj->latency*netj->period_usecs/100;
if( netj->bitdepth == CELT_MODE ) {
// celt mode.
// TODO: this is a hack. But i dont want to change the packet header.
netj->resample_factor = (netj->resample_factor * netj->period_size * 1024 / netj->sample_rate / 8)&(~1);
netj->resample_factor_up = (netj->resample_factor_up * netj->period_size * 1024 / netj->sample_rate / 8)&(~1);
netj->net_period_down = netj->resample_factor;
netj->net_period_up = netj->resample_factor_up;
} else {
netj->net_period_down = (float) netj->period_size / (float) netj->resample_factor;
netj->net_period_up = (float) netj->period_size / (float) netj->resample_factor_up;
}
netj->rx_bufsize = sizeof (jacknet_packet_header) + netj->net_period_down * netj->capture_channels * get_sample_size (netj->bitdepth);
netj->packcache = packet_cache_new (netj->latency + 50, netj->rx_bufsize, netj->mtu);
netj->expected_framecnt_valid = 0;
netj->num_lost_packets = 0;
netj->next_deadline_valid = 0;
netj->deadline_goodness = 0;
netj->time_to_deadline = 0;
// Special handling for latency=0
if( netj->latency == 0 )
netj->resync_threshold = 0;
else
netj->resync_threshold = MIN( 15, netj->latency-1 );
netj->running_free = 0;
return 0;
}