void
gst_jack_audio_client_init (void)
{
GST_DEBUG_CATEGORY_INIT (gst_jack_audio_client_debug, "jackclient", 0,
"jackclient helpers");
jack_set_error_function (jack_log_error);
jack_set_info_function (jack_info_error);
}
jack_raw_output::jack_raw_output (const char* client,
const char* server,
int rate,
int channels,
callback_type cb)
: detail::async_base_impl (cb)
, _out_ports (channels)
, _buffer_size (0)
{
jack_set_error_function (log_jack_error);
jack_set_info_function (log_jack_info);
jack_options_t options = !server ? JackNullOption : JackServerName;
_client = jack_client_open (client, options, 0, server);
if (!_client) throw jack_open_error ();
auto grd_client = base::make_guard ([&] { jack_client_close (_client); });
PSYNTH_JACK_CHECK (jack_set_process_callback (
_client, &jack_raw_output::_process_cb, this),
jack_param_error);
PSYNTH_JACK_CHECK (jack_set_sample_rate_callback (
_client, &jack_raw_output::_sample_rate_cb, this),
jack_param_error);
jack_on_shutdown (_client, &jack_raw_output::_shutdown_cb, this);
_actual_rate = jack_get_sample_rate (_client);
if (_actual_rate != rate)
PSYNTH_LOG
<< base::log::warning
<< "Jackd sample rate and application sample rate mismatch."
<< "Better sound quality is achieved if both are the same.";
_buffer_size = jack_get_buffer_size (_client);
PSYNTH_LOG << base::log::info
<< "Jackd buffer size is: " << _buffer_size;
for (size_t i = 0; i < _out_ports.size(); ++i)
{
std::string port_name = std::string ("out_") +
boost::lexical_cast<std::string> (i);
_out_ports [i] = jack_port_register (
_client, port_name.c_str (), JACK_DEFAULT_AUDIO_TYPE,
JackPortIsOutput, 0);
if (_out_ports [i] == 0)
throw jack_param_error ();
}
grd_client.dismiss ();
}
static SCM start_jack(void *data) {
int i;
char name[16];
jack_status_t jstatus;
jack_client = jack_client_open(client_name,
JackServerName,
&jstatus, server_name);
if (jack_client == 0) {
log_msg("JACK server not running?\n") ;
cleanup();
return SCM_UNSPECIFIED;
}
log_msg("JACK status: %04x\n", jstatus);
if (jstatus & JackServerStarted)
log_msg("\tserver started\n");
if (jstatus & JackServerFailed)
log_msg("\tcan't connect\n");
if (jstatus & JackInitFailure)
log_msg("\tcan't initialize client\n");
client_name = (const char *)jack_get_client_name(jack_client);
sampling_rate = jack_get_sample_rate(jack_client) ;
period_frames = jack_get_buffer_size(jack_client);
jack_set_error_function(jack_error);
jack_set_info_function(jack_info);
jack_set_xrun_callback(jack_client, jack_xrun, NULL);
jack_set_process_callback(jack_client, mixmaster, NULL);
jack_set_port_registration_callback(jack_client, check_ports, NULL);
jack_on_shutdown(jack_client, jack_shutdown, 0);
for (i = 0; i < QMX_CHANNELS; i++) {
sprintf(name, "out%02d", i + 1);
jack_cauldron[i] = jack_port_register(jack_client, name,
JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
}
if (jack_activate(jack_client)) {
log_msg("Cannot activate client.\n");
cleanup();
return SCM_UNSPECIFIED;
}
log_msg("JACK client activated: '%s'\n", client_name);
return SCM_UNSPECIFIED;
}
int soundio_jack_init(struct SoundIoPrivate *si) {
SoundIoJack *sij = &si->backend_data.jack;
SoundIo *soundio = &si->pub;
if (!global_msg_callback_flag.test_and_set()) {
if (soundio->jack_error_callback)
jack_set_error_function(soundio->jack_error_callback);
if (soundio->jack_info_callback)
jack_set_info_function(soundio->jack_info_callback);
global_msg_callback_flag.clear();
}
sij->mutex = soundio_os_mutex_create();
if (!sij->mutex) {
destroy_jack(si);
return SoundIoErrorNoMem;
}
sij->cond = soundio_os_cond_create();
if (!sij->cond) {
destroy_jack(si);
return SoundIoErrorNoMem;
}
// We pass JackNoStartServer due to
// https://github.com/jackaudio/jack2/issues/138
jack_status_t status;
sij->client = jack_client_open(soundio->app_name, JackNoStartServer, &status);
if (!sij->client) {
destroy_jack(si);
assert(!(status & JackInvalidOption));
if (status & JackShmFailure)
return SoundIoErrorSystemResources;
if (status & JackNoSuchClient)
return SoundIoErrorNoSuchClient;
return SoundIoErrorInitAudioBackend;
}
int err;
if ((err = jack_set_buffer_size_callback(sij->client, buffer_size_callback, si))) {
destroy_jack(si);
return SoundIoErrorInitAudioBackend;
}
if ((err = jack_set_sample_rate_callback(sij->client, sample_rate_callback, si))) {
destroy_jack(si);
return SoundIoErrorInitAudioBackend;
}
if ((err = jack_set_port_registration_callback(sij->client, port_registration_callback, si))) {
destroy_jack(si);
return SoundIoErrorInitAudioBackend;
}
if ((err = jack_set_port_rename_callback(sij->client, port_rename_calllback, si))) {
destroy_jack(si);
return SoundIoErrorInitAudioBackend;
}
jack_on_shutdown(sij->client, shutdown_callback, si);
sij->refresh_devices_flag.clear();
sij->period_size = jack_get_buffer_size(sij->client);
sij->sample_rate = jack_get_sample_rate(sij->client);
if ((err = jack_activate(sij->client))) {
destroy_jack(si);
return SoundIoErrorInitAudioBackend;
}
if ((err = refresh_devices(si))) {
destroy_jack(si);
return err;
}
si->destroy = destroy_jack;
si->flush_events = flush_events_jack;
si->wait_events = wait_events_jack;
si->wakeup = wakeup_jack;
si->force_device_scan = force_device_scan_jack;
si->outstream_open = outstream_open_jack;
si->outstream_destroy = outstream_destroy_jack;
si->outstream_start = outstream_start_jack;
si->outstream_begin_write = outstream_begin_write_jack;
si->outstream_end_write = outstream_end_write_jack;
si->outstream_clear_buffer = outstream_clear_buffer_jack;
si->outstream_pause = outstream_pause_jack;
si->outstream_get_latency = outstream_get_latency_jack;
si->instream_open = instream_open_jack;
si->instream_destroy = instream_destroy_jack;
si->instream_start = instream_start_jack;
si->instream_begin_read = instream_begin_read_jack;
si->instream_end_read = instream_end_read_jack;
si->instream_pause = instream_pause_jack;
si->instream_get_latency = instream_get_latency_jack;
return 0;
}
int
main(int argc, char **argv)
{
int jitter_plot[101];
int latency_plot[101];
int long_index = 0;
struct option long_options[] = {
{"help", 0, NULL, 'h'},
{"message-size", 1, NULL, 'm'},
{"samples", 1, NULL, 's'},
{"timeout", 1, NULL, 't'}
};
size_t name_arg_count;
size_t name_size;
char *option_string = "hm:s:t:";
int show_usage = 0;
connections_established = 0;
error_message = NULL;
message_size = 3;
program_name = argv[0];
remote_in_port = 0;
remote_out_port = 0;
samples = 1024;
timeout = 5;
for (;;) {
signed char c = getopt_long(argc, argv, option_string, long_options,
&long_index);
switch (c) {
case 'h':
show_usage = 1;
break;
case 'm':
message_size = parse_positive_number_arg(optarg, "message-size");
break;
case 's':
samples = parse_positive_number_arg(optarg, "samples");
break;
case 't':
timeout = parse_positive_number_arg(optarg, "timeout");
break;
default:
{
char *s = "'- '";
s[2] = c;
die(s, "invalid switch");
}
case -1:
if (show_usage) {
output_usage();
exit(EXIT_SUCCESS);
}
goto parse_port_names;
case 1:
/* end of switch :) */
;
}
}
parse_port_names:
name_arg_count = argc - optind;
switch (name_arg_count) {
case 2:
target_in_port_name = argv[optind + 1];
target_out_port_name = argv[optind];
break;
case 0:
target_in_port_name = 0;
target_out_port_name = 0;
break;
default:
output_usage();
return EXIT_FAILURE;
}
name_size = jack_port_name_size();
alias1 = malloc(name_size * sizeof(char));
if (alias1 == NULL) {
error_message = strerror(errno);
error_source = "malloc";
goto show_error;
}
alias2 = malloc(name_size * sizeof(char));
if (alias2 == NULL) {
error_message = strerror(errno);
error_source = "malloc";
goto free_alias1;
}
latency_values = malloc(sizeof(jack_nframes_t) * samples);
if (latency_values == NULL) {
error_message = strerror(errno);
error_source = "malloc";
goto free_alias2;
}
latency_time_values = malloc(sizeof(jack_time_t) * samples);
if (latency_time_values == NULL) {
error_message = strerror(errno);
error_source = "malloc";
goto free_latency_values;
}
message_1 = malloc(message_size * sizeof(jack_midi_data_t));
if (message_1 == NULL) {
error_message = strerror(errno);
error_source = "malloc";
goto free_latency_time_values;
}
message_2 = malloc(message_size * sizeof(jack_midi_data_t));
if (message_2 == NULL) {
error_message = strerror(errno);
error_source = "malloc";
goto free_message_1;
}
switch (message_size) {
case 1:
message_1[0] = 0xf6;
message_2[0] = 0xfe;
break;
case 2:
message_1[0] = 0xc0;
message_1[1] = 0x00;
message_2[0] = 0xd0;
message_2[1] = 0x7f;
break;
case 3:
message_1[0] = 0x80;
message_1[1] = 0x00;
message_1[2] = 0x00;
message_2[0] = 0x90;
message_2[1] = 0x7f;
message_2[2] = 0x7f;
break;
default:
message_1[0] = 0xf0;
memset(message_1 + 1, 0,
(message_size - 2) * sizeof(jack_midi_data_t));
message_1[message_size - 1] = 0xf7;
message_2[0] = 0xf0;
memset(message_2 + 1, 0x7f,
(message_size - 2) * sizeof(jack_midi_data_t));
message_2[message_size - 1] = 0xf7;
}
client = jack_client_open(program_name, JackNullOption, NULL);
if (client == NULL) {
error_message = "failed to open JACK client";
error_source = "jack_client_open";
goto free_message_2;
}
in_port = jack_port_register(client, "in", JACK_DEFAULT_MIDI_TYPE,
JackPortIsInput, 0);
if (in_port == NULL) {
error_message = "failed to register MIDI-in port";
error_source = "jack_port_register";
goto close_client;
}
out_port = jack_port_register(client, "out", JACK_DEFAULT_MIDI_TYPE,
JackPortIsOutput, 0);
if (out_port == NULL) {
error_message = "failed to register MIDI-out port";
error_source = "jack_port_register";
goto unregister_in_port;
}
if (jack_set_process_callback(client, handle_process, NULL)) {
error_message = "failed to set process callback";
error_source = "jack_set_process_callback";
goto unregister_out_port;
}
if (jack_set_xrun_callback(client, handle_xrun, NULL)) {
error_message = "failed to set xrun callback";
error_source = "jack_set_xrun_callback";
goto unregister_out_port;
}
if (jack_set_port_connect_callback(client, handle_port_connection_change,
NULL)) {
error_message = "failed to set port connection callback";
error_source = "jack_set_port_connect_callback";
goto unregister_out_port;
}
jack_on_shutdown(client, handle_shutdown, NULL);
jack_set_info_function(handle_info);
process_state = 0;
connect_semaphore = create_semaphore(0);
if (connect_semaphore == NULL) {
error_message = get_semaphore_error();
error_source = "create_semaphore";
goto unregister_out_port;
}
init_semaphore = create_semaphore(1);
if (init_semaphore == NULL) {
error_message = get_semaphore_error();
error_source = "create_semaphore";
goto destroy_connect_semaphore;;
}
process_semaphore = create_semaphore(2);
if (process_semaphore == NULL) {
error_message = get_semaphore_error();
error_source = "create_semaphore";
goto destroy_init_semaphore;
}
if (jack_activate(client)) {
error_message = "could not activate client";
error_source = "jack_activate";
goto destroy_process_semaphore;
}
if (name_arg_count) {
if (jack_connect(client, jack_port_name(out_port),
target_out_port_name)) {
error_message = "could not connect MIDI out port";
error_source = "jack_connect";
goto deactivate_client;
}
if (jack_connect(client, target_in_port_name,
jack_port_name(in_port))) {
error_message = "could not connect MIDI in port";
error_source = "jack_connect";
goto deactivate_client;
}
}
if (! register_signal_handler(handle_signal)) {
error_message = strerror(errno);
error_source = "register_signal_handler";
goto deactivate_client;
}
printf("Waiting for connections ...\n");
if (wait_semaphore(connect_semaphore, 1) == -1) {
error_message = get_semaphore_error();
error_source = "wait_semaphore";
goto deactivate_client;
}
if (connections_established) {
printf("Waiting for test completion ...\n\n");
if (wait_semaphore(process_semaphore, 1) == -1) {
error_message = get_semaphore_error();
error_source = "wait_semaphore";
goto deactivate_client;
}
}
if (! register_signal_handler(SIG_DFL)) {
error_message = strerror(errno);
error_source = "register_signal_handler";
goto deactivate_client;
}
if (process_state == 2) {
double average_latency = ((double) total_latency) / samples;
double average_latency_time = total_latency_time / samples;
size_t i;
double latency_plot_offset =
floor(((double) lowest_latency_time) / 100.0) / 10.0;
double sample_rate = (double) jack_get_sample_rate(client);
jack_nframes_t total_jitter = 0;
jack_time_t total_jitter_time = 0;
for (i = 0; i <= 100; i++) {
jitter_plot[i] = 0;
latency_plot[i] = 0;
}
for (i = 0; i < samples; i++) {
double latency_time_value = (double) latency_time_values[i];
double latency_plot_time =
(latency_time_value / 1000.0) - latency_plot_offset;
double jitter_time = ABS(average_latency_time -
latency_time_value);
if (latency_plot_time >= 10.0) {
(latency_plot[100])++;
} else {
(latency_plot[(int) (latency_plot_time * 10.0)])++;
}
if (jitter_time >= 10000.0) {
(jitter_plot[100])++;
} else {
(jitter_plot[(int) (jitter_time / 100.0)])++;
}
total_jitter += ABS(average_latency -
((double) latency_values[i]));
total_jitter_time += jitter_time;
}
printf("Reported out-port latency: %.2f-%.2f ms (%u-%u frames)\n"
"Reported in-port latency: %.2f-%.2f ms (%u-%u frames)\n"
"Average latency: %.2f ms (%.2f frames)\n"
"Lowest latency: %.2f ms (%u frames)\n"
"Highest latency: %.2f ms (%u frames)\n"
"Peak MIDI jitter: %.2f ms (%u frames)\n"
"Average MIDI jitter: %.2f ms (%.2f frames)\n",
(out_latency_range.min / sample_rate) * 1000.0,
(out_latency_range.max / sample_rate) * 1000.0,
out_latency_range.min, out_latency_range.max,
(in_latency_range.min / sample_rate) * 1000.0,
(in_latency_range.max / sample_rate) * 1000.0,
in_latency_range.min, in_latency_range.max,
average_latency_time / 1000.0, average_latency,
lowest_latency_time / 1000.0, lowest_latency,
highest_latency_time / 1000.0, highest_latency,
(highest_latency_time - lowest_latency_time) / 1000.0,
highest_latency - lowest_latency,
(total_jitter_time / 1000.0) / samples,
((double) total_jitter) / samples);
printf("\nJitter Plot:\n");
for (i = 0; i < 100; i++) {
if (jitter_plot[i]) {
printf("%.1f - %.1f ms: %d\n", ((float) i) / 10.0,
((float) (i + 1)) / 10.0, jitter_plot[i]);
}
}
if (jitter_plot[100]) {
printf(" > 10 ms: %d\n", jitter_plot[100]);
}
printf("\nLatency Plot:\n");
for (i = 0; i < 100; i++) {
if (latency_plot[i]) {
printf("%.1f - %.1f ms: %d\n",
latency_plot_offset + (((float) i) / 10.0),
latency_plot_offset + (((float) (i + 1)) / 10.0),
latency_plot[i]);
}
}
if (latency_plot[100]) {
printf(" > %.1f ms: %d\n", latency_plot_offset + 10.0,
latency_plot[100]);
}
}
deactivate_client:
jack_deactivate(client);
printf("\nMessages sent: %d\nMessages received: %d\n", messages_sent,
messages_received);
if (unexpected_messages) {
printf("Unexpected messages received: %d\n", unexpected_messages);
}
if (xrun_count) {
printf("Xruns: %d\n", xrun_count);
}
destroy_process_semaphore:
destroy_semaphore(process_semaphore, 2);
destroy_init_semaphore:
destroy_semaphore(init_semaphore, 1);
destroy_connect_semaphore:
destroy_semaphore(connect_semaphore, 0);
unregister_out_port:
jack_port_unregister(client, out_port);
unregister_in_port:
jack_port_unregister(client, in_port);
close_client:
jack_client_close(client);
free_message_2:
free(message_2);
free_message_1:
free(message_1);
free_latency_time_values:
free(latency_time_values);
free_latency_values:
free(latency_values);
free_alias2:
free(alias2);
free_alias1:
free(alias1);
if (error_message != NULL) {
show_error:
output_error(error_source, error_message);
exit(EXIT_FAILURE);
}
return EXIT_SUCCESS;
}
mfp_context *
mfp_jack_startup(char * client_name, int num_inputs, int num_outputs)
{
mfp_context * ctxt;
jack_status_t status;
jack_port_t * port;
int i;
char namebuf[16];
ctxt = mfp_context_new(CTYPE_JACK);
if ((ctxt->info.jack->client = jack_client_open(client_name, JackNullOption, &status, NULL)) == 0) {
fprintf (stderr, "jack_client_open() failed.");
return NULL;
}
/* callbacks */
jack_set_process_callback(ctxt->info.jack->client, process_cb, ctxt);
jack_set_graph_order_callback(ctxt->info.jack->client, reorder_cb, ctxt);
/* no info logging to console */
jack_set_info_function(info_cb);
jack_set_error_function(info_cb);
/* create application input and output ports */
if (num_inputs > 0) {
ctxt->info.jack->input_ports = g_array_new(TRUE, TRUE, sizeof(jack_port_t *));
for(i=0; i<num_inputs; i++) {
snprintf(namebuf, 16, "in_%d", i);
port = jack_port_register (ctxt->info.jack->client, namebuf, JACK_DEFAULT_AUDIO_TYPE,
JackPortIsInput, i);
g_array_append_val(ctxt->info.jack->input_ports, port);
}
}
if (num_outputs > 0) {
ctxt->info.jack->output_ports = g_array_new(TRUE, TRUE, sizeof(jack_port_t *));
for(i=0; i<num_outputs; i++) {
snprintf(namebuf, 16, "out_%d", i);
port = jack_port_register (ctxt->info.jack->client, namebuf, JACK_DEFAULT_AUDIO_TYPE,
JackPortIsOutput, i);
g_array_append_val(ctxt->info.jack->output_ports, port);
}
}
/* find out sample rate */
ctxt->samplerate = jack_get_sample_rate(ctxt->info.jack->client);
ctxt->blocksize = jack_get_buffer_size(ctxt->info.jack->client);
mfp_in_latency = 3000.0 * ctxt->blocksize / ctxt->samplerate;
mfp_out_latency = 3000.0 * ctxt->blocksize / ctxt->samplerate;
printf("jack_startup: samplerate=%d, blocksize=%d, in_latency=%.1f, out_latency = %.1f\n",
ctxt->samplerate, ctxt->blocksize, mfp_in_latency, mfp_out_latency);
/* tell the JACK server that we are ready to roll */
if (jack_activate (ctxt->info.jack->client)) {
fprintf (stderr, "cannot activate client");
return NULL;
}
else {
ctxt->activated = 1;
}
return ctxt;
}
int run(size_t port_count, const char** ports, const char* client_name,
const char* file_path, jackoff_format_t* format, int bitrate,
size_t channels, float buffer_duration, time_t recording_duration,
jack_options_t options)
{
jackoff_client_t* client;
jackoff_encoder_t* encoder;
jackoff_session_t* session;
time_t stop_time = (time_t) 0;
size_t i;
long result;
jack_set_error_function(handle_jack_error);
jack_set_info_function(handle_jack_info);
if (recording_duration) {
stop_time = time(NULL) + recording_duration;
}
client = jackoff_create_client(client_name, options, channels, buffer_duration);
if (jackoff_activate_client(client) != 0) {
jackoff_destroy_client(client);
jackoff_error("Failed to activate JACK client.");
}
signal(SIGTERM, handle_signal);
signal(SIGINT, handle_signal);
signal(SIGHUP, handle_signal);
if (port_count == 0) {
jackoff_auto_connect_client_ports(client);
} else {
for (i = 0; i < port_count; i++) {
jackoff_connect_client_port(client, i, ports[i]);
}
}
encoder = jackoff_create_encoder(client, format, bitrate);
if (!encoder) {
jackoff_destroy_client(client);
return 1;
}
session = jackoff_open_session(client, encoder, file_path);
if (!session) {
jackoff_destroy_encoder(encoder);
jackoff_destroy_client(client);
return 2;
}
running = 1;
jackoff_info("Recording.");
while (running && (stop_time == 0 || time(NULL) < stop_time)) {
if (client->ring_buffer_overflowed) {
jackoff_warn("Ring buffer overflow; some audio was not written.");
client->ring_buffer_overflowed = 0;
}
if (!client->status) {
break;
}
result = jackoff_write_session(session);
if (result == 0) {
// Sleep for 1/4th the ring buffer duration.
jackoff_debug("Sleeping for %.04fms.", (buffer_duration / 4));
usleep(1000000 * (buffer_duration / 4));
} else if (result == -1) {
jackoff_close_session(session);
jackoff_destroy_encoder(encoder);
jackoff_destroy_client(client);
jackoff_error("Encoding error. Shutting down.");
return 3;
}
}
jackoff_close_session(session);
jackoff_destroy_encoder(encoder);
jackoff_destroy_client(client);
return 0;
}
