static size_t find_buffersize(jack_t *jd, int latency)
{
jack_latency_range_t range;
int i, buffer_frames, min_buffer_frames, jack_latency = 0;
settings_t *settings = config_get_ptr();
int frames = latency * settings->audio.out_rate / 1000;
for (i = 0; i < 2; i++)
{
jack_port_get_latency_range(jd->ports[i], JackPlaybackLatency, &range);
if ((int)range.max > jack_latency)
jack_latency = range.max;
}
RARCH_LOG("JACK: Jack latency is %d frames.\n", jack_latency);
buffer_frames = frames - jack_latency;
min_buffer_frames = jack_get_buffer_size(jd->client) * 2;
RARCH_LOG("JACK: Minimum buffer size is %d frames.\n", min_buffer_frames);
if (buffer_frames < min_buffer_frames)
buffer_frames = min_buffer_frames;
return buffer_frames * sizeof(jack_default_audio_sample_t);
}
static guint
gst_jack_ring_buffer_delay (GstRingBuffer * buf)
{
GstJackAudioSrc *src;
guint i, res = 0;
#ifdef HAVE_JACK_0_120_2
jack_latency_range_t range;
#else
guint latency;
#endif
jack_client_t *client;
src = GST_JACK_AUDIO_SRC (GST_OBJECT_PARENT (buf));
client = gst_jack_audio_client_get_client (src->client);
for (i = 0; i < src->port_count; i++) {
#ifdef HAVE_JACK_0_120_2
jack_port_get_latency_range (src->ports[i], JackCaptureLatency, &range);
if (range.max > res)
res = range.max;
#else
latency = jack_port_get_total_latency (client, src->ports[i]);
if (latency > res)
res = latency;
#endif
}
GST_DEBUG_OBJECT (src, "delay %u", res);
return res;
}
void
latency_cb (jack_latency_callback_mode_t mode, void *arg)
{
jack_latency_range_t range;
if (mode == JackCaptureLatency) {
jack_port_get_latency_range (input_port, mode, &range);
range.min += latency;
range.max += latency;
jack_port_set_latency_range (output_port, mode, &range);
} else {
jack_port_get_latency_range (output_port, mode, &range);
range.min += latency;
range.max += latency;
jack_port_set_latency_range (input_port, mode, &range);
}
}
static int LatencyRange(lua_State *L)
{
jack_latency_range_t range;
pud_t *pud = pud_check(L, 1);
jack_latency_callback_mode_t mode = CheckMode(L, 2);
jack_port_get_latency_range(pud->port, mode, &range);
lua_pushinteger(L, range.min);
lua_pushinteger(L, range.max);
return 2;
}
/** returns the sum of latency of all ports between this one and a
terminal port. */
nframes_t
Port::total_latency ( void ) const
{
#ifdef HAVE_JACK_PORT_GET_LATENCY_RANGE
jack_latency_range_t range;
jack_port_get_latency_range( _port, _direction == Input ? JackPlaybackLatency : JackCaptureLatency, &range );
return range.max;
#else
return jack_port_get_total_latency( _client->jack_client() , _port );
#endif
}
/** returns the number of frames of latency assigned to this port */
void
Port::get_latency ( direction_e dir, nframes_t *min, nframes_t *max ) const
{
#ifdef HAVE_JACK_PORT_GET_LATENCY_RANGE
jack_latency_range_t range;
jack_port_get_latency_range( _port, dir == Output ? JackPlaybackLatency : JackCaptureLatency, &range );
*min = range.min;
*max = range.max;
#else
*min = *max = jack_port_get_latency( _port );
#endif
}
void
latency_cb (jack_latency_callback_mode_t mode, void *arg)
{
jack_latency_range_t range;
range.min = range.max = 0;
if (mode == JackCaptureLatency) {
jack_port_set_latency_range (jack_play, mode, &range);
jack_port_get_latency_range (jack_capt, mode, &range);
if ((range.min != capture_latency.min) || (range.max != capture_latency.max)) {
capture_latency = range;
printf ("new capture latency: [%d, %d]\n", range.min, range.max);
}
} else {
jack_port_set_latency_range (jack_capt, mode, &range);
jack_port_get_latency_range (jack_play, mode, &range);
if ((range.min != playback_latency.min) || (range.max != playback_latency.max)) {
playback_latency = range;
printf ("new playback latency: [%d, %d]\n", range.min, range.max);
}
}
}
static guint
gst_jack_ring_buffer_delay (GstRingBuffer * buf)
{
GstJackAudioSrc *src;
guint i, res = 0;
jack_latency_range_t range;
src = GST_JACK_AUDIO_SRC (GST_OBJECT_PARENT (buf));
for (i = 0; i < src->port_count; i++) {
jack_port_get_latency_range (src->ports[i], JackCaptureLatency, &range);
if (range.max > res)
res = range.max;
}
GST_DEBUG_OBJECT (src, "delay %u", res);
return res;
}
static guint
gst_jack_ring_buffer_delay (GstRingBuffer * buf)
{
GstJackAudioSink *sink;
guint i, res = 0;
jack_latency_range_t range;
sink = GST_JACK_AUDIO_SINK (GST_OBJECT_PARENT (buf));
for (i = 0; i < sink->port_count; i++) {
jack_port_get_latency_range (sink->ports[i], JackPlaybackLatency, &range);
if (range.max > res)
res = range.max;
}
GST_LOG_OBJECT (sink, "delay %u", res);
return res;
}
bool SC_JackDriver::GraphOrderChanged()
{
SC_JackPortList* outputs = mOutputList;
jack_nframes_t lat = 0;
for (int i=0; i < outputs->mSize; ++i) {
jack_latency_range_t range;
jack_port_get_latency_range( outputs->mPorts[i], JackPlaybackLatency, &range );
jack_nframes_t portLat = range.max;
if (portLat > lat) lat = portLat;
}
double maxLat = (double)lat / mSampleRate;
if (maxLat != mMaxOutputLatency) {
mMaxOutputLatency = maxLat;
scprintf("%s: max output latency %.1f ms\n", kJackDriverIdent, maxLat * 1e3);
}
return true;
}
static int init(struct ao *ao)
{
struct priv *p = ao->priv;
const char **matching_ports = NULL;
char *port_name = p->cfg_port && p->cfg_port[0] ? p->cfg_port : NULL;
jack_options_t open_options = JackNullOption;
int port_flags = JackPortIsInput;
int i;
struct mp_chmap_sel sel = {0};
if (p->stdlayout == 0) {
mp_chmap_sel_add_waveext(&sel);
} else if (p->stdlayout == 1) {
mp_chmap_sel_add_alsa_def(&sel);
} else {
mp_chmap_sel_add_any(&sel);
}
if (!ao_chmap_sel_adjust(ao, &sel, &ao->channels))
goto err_out;
if (!p->autostart)
open_options |= JackNoStartServer;
p->client = jack_client_open(p->cfg_client_name, open_options, NULL);
if (!p->client) {
MP_FATAL(ao, "cannot open server\n");
goto err_out;
}
jack_set_process_callback(p->client, outputaudio, ao);
// list matching ports if connections should be made
if (p->connect) {
if (!port_name)
port_flags |= JackPortIsPhysical;
matching_ports = jack_get_ports(p->client, port_name, NULL, port_flags);
if (!matching_ports || !matching_ports[0]) {
MP_FATAL(ao, "no physical ports available\n");
goto err_out;
}
i = 1;
p->num_ports = ao->channels.num;
while (matching_ports[i])
i++;
if (p->num_ports > i)
p->num_ports = i;
}
// create out output ports
for (i = 0; i < p->num_ports; i++) {
char pname[30];
snprintf(pname, 30, "out_%d", i);
p->ports[i] =
jack_port_register(p->client, pname, JACK_DEFAULT_AUDIO_TYPE,
JackPortIsOutput, 0);
if (!p->ports[i]) {
MP_FATAL(ao, "not enough ports available\n");
goto err_out;
}
}
if (jack_activate(p->client)) {
MP_FATAL(ao, "activate failed\n");
goto err_out;
}
for (i = 0; i < p->num_ports; i++) {
if (jack_connect(p->client, jack_port_name(p->ports[i]),
matching_ports[i]))
{
MP_FATAL(ao, "connecting failed\n");
goto err_out;
}
}
ao->samplerate = jack_get_sample_rate(p->client);
jack_latency_range_t jack_latency_range;
jack_port_get_latency_range(p->ports[0], JackPlaybackLatency,
&jack_latency_range);
p->jack_latency = (float)(jack_latency_range.max + jack_get_buffer_size(p->client))
/ (float)ao->samplerate;
p->callback_interval = 0;
if (!ao_chmap_sel_get_def(ao, &sel, &ao->channels, p->num_ports))
goto err_out;
ao->format = AF_FORMAT_FLOAT_NE;
int unitsize = ao->channels.num * sizeof(float);
p->outburst = (CHUNK_SIZE + unitsize - 1) / unitsize * unitsize;
p->ring = mp_ring_new(p, NUM_CHUNKS * p->outburst);
free(matching_ports);
return 0;
err_out:
free(matching_ports);
if (p->client)
jack_client_close(p->client);
return -1;
}
static int init(struct ao *ao)
{
struct priv *p = ao->priv;
struct mp_chmap_sel sel = {0};
jack_options_t open_options;
ao->format = AF_FORMAT_FLOATP;
switch (p->stdlayout) {
case 0:
mp_chmap_sel_add_waveext(&sel);
break;
case 1:
mp_chmap_sel_add_alsa_def(&sel);
break;
default:
mp_chmap_sel_add_any(&sel);
}
if (!ao_chmap_sel_adjust(ao, &sel, &ao->channels))
goto err_chmap;
open_options = JackNullOption;
if (!p->autostart)
open_options |= JackNoStartServer;
p->client = jack_client_open(p->cfg_client_name, open_options, NULL);
if (!p->client) {
MP_FATAL(ao, "cannot open server\n");
goto err_client_open;
}
if (create_ports(ao, ao->channels.num))
goto err_create_ports;
jack_set_process_callback(p->client, process, ao);
if (jack_activate(p->client)) {
MP_FATAL(ao, "activate failed\n");
goto err_activate;
}
ao->samplerate = jack_get_sample_rate(p->client);
if (p->connect)
if (connect_to_outports(ao))
goto err_connect;
jack_latency_range_t jack_latency_range;
jack_port_get_latency_range(p->ports[0], JackPlaybackLatency,
&jack_latency_range);
p->jack_latency = (float)(jack_latency_range.max + jack_get_buffer_size(p->client))
/ (float)ao->samplerate;
if (!ao_chmap_sel_get_def(ao, &sel, &ao->channels, p->num_ports))
goto err_chmap_sel_get_def;
return 0;
err_chmap_sel_get_def:
err_connect:
jack_deactivate(p->client);
err_activate:
err_create_ports:
jack_client_close(p->client);
err_client_open:
err_chmap:
return -1;
}
static int refresh_devices_bare(SoundIoPrivate *si) {
SoundIo *soundio = &si->pub;
SoundIoJack *sij = &si->backend_data.jack;
if (sij->is_shutdown)
return SoundIoErrorBackendDisconnected;
SoundIoDevicesInfo *devices_info = allocate<SoundIoDevicesInfo>(1);
if (!devices_info)
return SoundIoErrorNoMem;
devices_info->default_output_index = -1;
devices_info->default_input_index = -1;
const char **port_names = jack_get_ports(sij->client, nullptr, nullptr, 0);
if (!port_names) {
soundio_destroy_devices_info(devices_info);
return SoundIoErrorNoMem;
}
SoundIoList<SoundIoJackClient> clients = {0};
const char **port_name_ptr = port_names;
for (; *port_name_ptr; port_name_ptr += 1) {
const char *client_and_port_name = *port_name_ptr;
int client_and_port_name_len = strlen(client_and_port_name);
jack_port_t *jport = jack_port_by_name(sij->client, client_and_port_name);
if (!jport) {
// This refresh devices scan is already outdated. Just give up and
// let refresh_devices be called again.
jack_free(port_names);
soundio_destroy_devices_info(devices_info);
return SoundIoErrorInterrupted;
}
int flags = jack_port_flags(jport);
const char *port_type = jack_port_type(jport);
if (strcmp(port_type, JACK_DEFAULT_AUDIO_TYPE) != 0) {
// we don't know how to support such a port
continue;
}
SoundIoDeviceAim aim = (flags & JackPortIsInput) ?
SoundIoDeviceAimOutput : SoundIoDeviceAimInput;
bool is_physical = flags & JackPortIsPhysical;
const char *client_name = nullptr;
const char *port_name = nullptr;
int client_name_len;
int port_name_len;
split_str(client_and_port_name, client_and_port_name_len, ':',
&client_name, &client_name_len, &port_name, &port_name_len);
if (!client_name || !port_name) {
// device does not have colon, skip it
continue;
}
SoundIoJackClient *client = find_or_create_client(&clients, aim, is_physical,
client_name, client_name_len);
if (!client) {
jack_free(port_names);
soundio_destroy_devices_info(devices_info);
return SoundIoErrorNoMem;
}
if (client->port_count >= SOUNDIO_MAX_CHANNELS) {
// we hit the channel limit, skip the leftovers
continue;
}
SoundIoJackPort *port = &client->ports[client->port_count++];
port->full_name = client_and_port_name;
port->full_name_len = client_and_port_name_len;
port->name = port_name;
port->name_len = port_name_len;
port->channel_id = soundio_parse_channel_id(port_name, port_name_len);
jack_latency_callback_mode_t latency_mode = (aim == SoundIoDeviceAimOutput) ?
JackPlaybackLatency : JackCaptureLatency;
jack_port_get_latency_range(jport, latency_mode, &port->latency_range);
}
for (int i = 0; i < clients.length; i += 1) {
SoundIoJackClient *client = &clients.at(i);
if (client->port_count <= 0)
continue;
SoundIoDevicePrivate *dev = allocate<SoundIoDevicePrivate>(1);
if (!dev) {
jack_free(port_names);
soundio_destroy_devices_info(devices_info);
return SoundIoErrorNoMem;
}
SoundIoDevice *device = &dev->pub;
SoundIoDeviceJack *dj = &dev->backend_data.jack;
int description_len = client->name_len + 3 + 2 * client->port_count;
for (int port_index = 0; port_index < client->port_count; port_index += 1) {
SoundIoJackPort *port = &client->ports[port_index];
description_len += port->name_len;
}
dev->destruct = destruct_device;
device->ref_count = 1;
device->soundio = soundio;
device->is_raw = false;
device->aim = client->aim;
device->id = soundio_str_dupe(client->name, client->name_len);
device->name = allocate<char>(description_len);
device->current_format = SoundIoFormatFloat32NE;
device->sample_rate_count = 1;
device->sample_rates = &dev->prealloc_sample_rate_range;
device->sample_rates[0].min = sij->sample_rate;
device->sample_rates[0].max = sij->sample_rate;
device->sample_rate_current = sij->sample_rate;
device->software_latency_current = sij->period_size / (double) sij->sample_rate;
device->software_latency_min = sij->period_size / (double) sij->sample_rate;
device->software_latency_max = sij->period_size / (double) sij->sample_rate;
dj->port_count = client->port_count;
dj->ports = allocate<SoundIoDeviceJackPort>(dj->port_count);
if (!device->id || !device->name || !dj->ports) {
jack_free(port_names);
soundio_device_unref(device);
soundio_destroy_devices_info(devices_info);
return SoundIoErrorNoMem;
}
for (int port_index = 0; port_index < client->port_count; port_index += 1) {
SoundIoJackPort *port = &client->ports[port_index];
SoundIoDeviceJackPort *djp = &dj->ports[port_index];
djp->full_name = soundio_str_dupe(port->full_name, port->full_name_len);
djp->full_name_len = port->full_name_len;
djp->channel_id = port->channel_id;
djp->latency_range = port->latency_range;
if (!djp->full_name) {
jack_free(port_names);
soundio_device_unref(device);
soundio_destroy_devices_info(devices_info);
return SoundIoErrorNoMem;
}
}
memcpy(device->name, client->name, client->name_len);
memcpy(&device->name[client->name_len], ": ", 2);
int index = client->name_len + 2;
for (int port_index = 0; port_index < client->port_count; port_index += 1) {
SoundIoJackPort *port = &client->ports[port_index];
memcpy(&device->name[index], port->name, port->name_len);
index += port->name_len;
if (port_index + 1 < client->port_count) {
memcpy(&device->name[index], ", ", 2);
index += 2;
}
}
device->current_layout.channel_count = client->port_count;
bool any_invalid = false;
for (int port_index = 0; port_index < client->port_count; port_index += 1) {
SoundIoJackPort *port = &client->ports[port_index];
device->current_layout.channels[port_index] = port->channel_id;
any_invalid = any_invalid || (port->channel_id == SoundIoChannelIdInvalid);
}
if (any_invalid) {
const struct SoundIoChannelLayout *layout = soundio_channel_layout_get_default(client->port_count);
if (layout)
device->current_layout = *layout;
} else {
soundio_channel_layout_detect_builtin(&device->current_layout);
}
device->layout_count = 1;
device->layouts = &device->current_layout;
device->format_count = 1;
device->formats = &dev->prealloc_format;
device->formats[0] = device->current_format;
SoundIoList<SoundIoDevice *> *device_list;
if (device->aim == SoundIoDeviceAimOutput) {
device_list = &devices_info->output_devices;
if (devices_info->default_output_index < 0 && client->is_physical)
devices_info->default_output_index = device_list->length;
} else {
assert(device->aim == SoundIoDeviceAimInput);
device_list = &devices_info->input_devices;
if (devices_info->default_input_index < 0 && client->is_physical)
devices_info->default_input_index = device_list->length;
}
if (device_list->append(device)) {
soundio_device_unref(device);
soundio_destroy_devices_info(devices_info);
return SoundIoErrorNoMem;
}
}
jack_free(port_names);
soundio_destroy_devices_info(si->safe_devices_info);
si->safe_devices_info = devices_info;
return 0;
}
static int
handle_process(jack_nframes_t frames, void *arg)
{
jack_midi_data_t *buffer;
jack_midi_event_t event;
jack_nframes_t event_count;
jack_nframes_t event_time;
jack_nframes_t frame;
size_t i;
jack_nframes_t last_frame_time;
jack_midi_data_t *message;
jack_time_t microseconds;
void *port_buffer;
jack_time_t time;
jack_midi_clear_buffer(jack_port_get_buffer(out_port, frames));
switch (process_state) {
case 0:
/* State: initializing */
switch (wait_semaphore(init_semaphore, 0)) {
case -1:
set_process_error(SOURCE_WAIT_SEMAPHORE, get_semaphore_error());
/* Fallthrough on purpose */
case 0:
return 0;
}
highest_latency = 0;
lowest_latency = 0;
messages_received = 0;
messages_sent = 0;
process_state = 1;
total_latency = 0;
total_latency_time = 0;
unexpected_messages = 0;
xrun_count = 0;
jack_port_get_latency_range(remote_in_port, JackCaptureLatency,
&in_latency_range);
jack_port_get_latency_range(remote_out_port, JackPlaybackLatency,
&out_latency_range);
goto send_message;
case 1:
/* State: processing */
port_buffer = jack_port_get_buffer(in_port, frames);
event_count = jack_midi_get_event_count(port_buffer);
last_frame_time = jack_last_frame_time(client);
for (i = 0; i < event_count; i++) {
jack_midi_event_get(&event, port_buffer, i);
message = (messages_received % 2) ? message_2 : message_1;
if ((event.size == message_size) &&
(! memcmp(message, event.buffer,
message_size * sizeof(jack_midi_data_t)))) {
goto found_message;
}
unexpected_messages++;
}
microseconds = jack_frames_to_time(client, last_frame_time) -
last_activity_time;
if ((microseconds / 1000000) >= timeout) {
set_process_error(SOURCE_PROCESS, ERROR_MSG_TIMEOUT);
}
break;
found_message:
event_time = last_frame_time + event.time;
frame = event_time - last_activity;
time = jack_frames_to_time(client, event_time) - last_activity_time;
if ((! highest_latency) || (frame > highest_latency)) {
highest_latency = frame;
highest_latency_time = time;
}
if ((! lowest_latency) || (frame < lowest_latency)) {
lowest_latency = frame;
lowest_latency_time = time;
}
latency_time_values[messages_received] = time;
latency_values[messages_received] = frame;
total_latency += frame;
total_latency_time += time;
messages_received++;
if (messages_received == samples) {
process_state = 2;
if (! signal_semaphore(process_semaphore)) {
/* Sigh ... */
die(SOURCE_SIGNAL_SEMAPHORE, get_semaphore_error());
}
break;
}
send_message:
frame = (jack_nframes_t) ((((double) rand()) / RAND_MAX) * frames);
if (frame >= frames) {
frame = frames - 1;
}
port_buffer = jack_port_get_buffer(out_port, frames);
buffer = jack_midi_event_reserve(port_buffer, frame, message_size);
if (buffer == NULL) {
set_process_error(SOURCE_EVENT_RESERVE, ERROR_RESERVE);
break;
}
message = (messages_sent % 2) ? message_2 : message_1;
memcpy(buffer, message, message_size * sizeof(jack_midi_data_t));
last_activity = jack_last_frame_time(client) + frame;
last_activity_time = jack_frames_to_time(client, last_activity);
messages_sent++;
case 2:
/* State: finished - do nothing */
case -1:
/* State: error - do nothing */
case -2:
/* State: signalled - do nothing */
;
}
return 0;
}
int
main (int argc, char *argv[])
{
jack_client_t *client;
jack_status_t status;
jack_options_t options = JackNoStartServer;
const char **ports, **connections;
unsigned int i, j, k;
int skip_port;
int show_aliases = 0;
int show_con = 0;
int show_port_latency = 0;
int show_total_latency = 0;
int show_properties = 0;
int show_type = 0;
int c;
int option_index;
char* aliases[2];
char *server_name = NULL;
jack_port_t *port;
struct option long_options[] = {
{ "server", 1, 0, 's' },
{ "aliases", 0, 0, 'A' },
{ "connections", 0, 0, 'c' },
{ "port-latency", 0, 0, 'l' },
{ "total-latency", 0, 0, 'L' },
{ "properties", 0, 0, 'p' },
{ "type", 0, 0, 't' },
{ "help", 0, 0, 'h' },
{ "version", 0, 0, 'v' },
{ 0, 0, 0, 0 }
};
my_name = strrchr(argv[0], '/');
if (my_name == 0) {
my_name = argv[0];
} else {
my_name ++;
}
while ((c = getopt_long (argc, argv, "s:AclLphvt", long_options, &option_index)) >= 0) {
switch (c) {
case 's':
server_name = (char *) malloc (sizeof (char) * strlen(optarg));
strcpy (server_name, optarg);
options |= JackServerName;
break;
case 'A':
aliases[0] = (char *) malloc (jack_port_name_size());
aliases[1] = (char *) malloc (jack_port_name_size());
show_aliases = 1;
break;
case 'c':
show_con = 1;
break;
case 'l':
show_port_latency = 1;
break;
case 'L':
show_total_latency = 1;
break;
case 'p':
show_properties = 1;
break;
case 't':
show_type = 1;
break;
case 'h':
show_usage ();
return 1;
break;
case 'v':
show_version ();
return 1;
break;
default:
show_usage ();
return 1;
break;
}
}
/* Open a client connection to the JACK server. Starting a
* new server only to list its ports seems pointless, so we
* specify JackNoStartServer. */
//JOQ: need a new server name option
client = jack_client_open ("lsp", options, &status, server_name);
if (client == NULL) {
if (status & JackServerFailed) {
fprintf (stderr, "JACK server not running\n");
} else {
fprintf (stderr, "jack_client_open() failed, "
"status = 0x%2.0x\n", status);
}
return 1;
}
ports = jack_get_ports (client, NULL, NULL, 0);
if (!ports)
goto error;
for (i = 0; ports && ports[i]; ++i) {
// skip over any that don't match ALL of the strings presented at command line
skip_port = 0;
for(k = optind; k < argc; k++){
if(strstr(ports[i], argv[k]) == NULL ){
skip_port = 1;
}
}
if (skip_port) continue;
printf ("%s\n", ports[i]);
port = jack_port_by_name (client, ports[i]);
if (show_aliases) {
int cnt;
int i;
cnt = jack_port_get_aliases (port, aliases);
for (i = 0; i < cnt; ++i) {
printf (" %s\n", aliases[i]);
}
}
if (show_con) {
if ((connections = jack_port_get_all_connections (client, jack_port_by_name(client, ports[i]))) != 0) {
for (j = 0; connections[j]; j++) {
printf (" %s\n", connections[j]);
}
free (connections);
}
}
if (show_port_latency) {
if (port) {
jack_latency_range_t range;
printf (" port latency = %" PRIu32 " frames\n",
jack_port_get_latency (port));
jack_port_get_latency_range (port, JackPlaybackLatency, &range);
printf (" port playback latency = [ %" PRIu32 " %" PRIu32 " ] frames\n",
range.min, range.max);
jack_port_get_latency_range (port, JackCaptureLatency, &range);
printf (" port capture latency = [ %" PRIu32 " %" PRIu32 " ] frames\n",
range.min, range.max);
}
}
if (show_total_latency) {
if (port) {
printf (" total latency = %d frames\n",
jack_port_get_total_latency (client, port));
}
}
if (show_properties) {
if (port) {
int flags = jack_port_flags (port);
printf (" properties: ");
if (flags & JackPortIsInput) {
fputs ("input,", stdout);
}
if (flags & JackPortIsOutput) {
fputs ("output,", stdout);
}
if (flags & JackPortCanMonitor) {
fputs ("can-monitor,", stdout);
}
if (flags & JackPortIsPhysical) {
fputs ("physical,", stdout);
}
if (flags & JackPortIsTerminal) {
fputs ("terminal,", stdout);
}
putc ('\n', stdout);
}
}
if (show_type) {
if (port) {
putc ('\t', stdout);
fputs (jack_port_type (port), stdout);
putc ('\n', stdout);
}
}
}
error:
if (show_aliases) {
free(aliases[0]);
free(aliases[1]);
}
if (ports)
jack_free (ports);
jack_client_close (client);
exit (0);
}
static int init(int rate, const struct mp_chmap *channels, int format, int flags)
{
const char **matching_ports = NULL;
char *port_name = NULL;
char *client_name = NULL;
int autostart = 0;
int connect = 1;
const opt_t subopts[] = {
{"port", OPT_ARG_MSTRZ, &port_name, NULL},
{"name", OPT_ARG_MSTRZ, &client_name, NULL},
{"estimate", OPT_ARG_BOOL, &estimate, NULL},
{"autostart", OPT_ARG_BOOL, &autostart, NULL},
{"connect", OPT_ARG_BOOL, &connect, NULL},
{NULL}
};
jack_options_t open_options = JackUseExactName;
int port_flags = JackPortIsInput;
int i;
estimate = 1;
if (subopt_parse(ao_subdevice, subopts) != 0) {
print_help();
return 0;
}
struct mp_chmap_sel sel = {0};
mp_chmap_sel_add_waveext(&sel);
if (!ao_chmap_sel_adjust(&ao_data, &sel, &ao_data.channels))
goto err_out;
if (!client_name) {
client_name = malloc(40);
sprintf(client_name, "mpv [%d]", getpid());
}
if (!autostart)
open_options |= JackNoStartServer;
client = jack_client_open(client_name, open_options, NULL);
if (!client) {
mp_msg(MSGT_AO, MSGL_FATAL, "[JACK] cannot open server\n");
goto err_out;
}
buffer = av_fifo_alloc(BUFFSIZE);
jack_set_process_callback(client, outputaudio, 0);
// list matching ports if connections should be made
if (connect) {
if (!port_name)
port_flags |= JackPortIsPhysical;
matching_ports = jack_get_ports(client, port_name, NULL, port_flags);
if (!matching_ports || !matching_ports[0]) {
mp_msg(MSGT_AO, MSGL_FATAL, "[JACK] no physical ports available\n");
goto err_out;
}
i = 1;
num_ports = ao_data.channels.num;
while (matching_ports[i]) i++;
if (num_ports > i) num_ports = i;
}
// create out output ports
for (i = 0; i < num_ports; i++) {
char pname[30];
snprintf(pname, 30, "out_%d", i);
ports[i] = jack_port_register(client, pname, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
if (!ports[i]) {
mp_msg(MSGT_AO, MSGL_FATAL, "[JACK] not enough ports available\n");
goto err_out;
}
}
if (jack_activate(client)) {
mp_msg(MSGT_AO, MSGL_FATAL, "[JACK] activate failed\n");
goto err_out;
}
for (i = 0; i < num_ports; i++) {
if (jack_connect(client, jack_port_name(ports[i]), matching_ports[i])) {
mp_msg(MSGT_AO, MSGL_FATAL, "[JACK] connecting failed\n");
goto err_out;
}
}
rate = jack_get_sample_rate(client);
jack_latency_range_t jack_latency_range;
jack_port_get_latency_range(ports[0], JackPlaybackLatency,
&jack_latency_range);
jack_latency = (float)(jack_latency_range.max + jack_get_buffer_size(client))
/ (float)rate;
callback_interval = 0;
if (!ao_chmap_sel_get_def(&ao_data, &sel, &ao_data.channels, num_ports))
goto err_out;
ao_data.samplerate = rate;
ao_data.format = AF_FORMAT_FLOAT_NE;
ao_data.bps = ao_data.channels.num * rate * sizeof(float);
ao_data.buffersize = CHUNK_SIZE * NUM_CHUNKS;
ao_data.outburst = CHUNK_SIZE;
free(matching_ports);
free(port_name);
free(client_name);
return 1;
err_out:
free(matching_ports);
free(port_name);
free(client_name);
if (client)
jack_client_close(client);
av_fifo_free(buffer);
buffer = NULL;
return 0;
}
int pa__init(pa_module*m) {
struct userdata *u = NULL;
pa_sample_spec ss;
pa_channel_map map;
pa_modargs *ma = NULL;
jack_status_t status;
const char *server_name, *client_name;
uint32_t channels = 0;
bool do_connect = true;
unsigned i;
const char **ports = NULL, **p;
pa_sink_new_data data;
jack_latency_range_t r;
size_t n;
pa_assert(m);
jack_set_error_function(jack_error_func);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments.");
goto fail;
}
if (pa_modargs_get_value_boolean(ma, "connect", &do_connect) < 0) {
pa_log("Failed to parse connect= argument.");
goto fail;
}
server_name = pa_modargs_get_value(ma, "server_name", NULL);
client_name = pa_modargs_get_value(ma, "client_name", "PulseAudio JACK Sink");
m->userdata = u = pa_xnew0(struct userdata, 1);
u->core = m->core;
u->module = m;
u->saved_frame_time_valid = false;
u->rtpoll = pa_rtpoll_new();
pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
/* The queue linking the JACK thread and our RT thread */
u->jack_msgq = pa_asyncmsgq_new(0);
/* The msgq from the JACK RT thread should have an even higher
* priority than the normal message queues, to match the guarantee
* all other drivers make: supplying the audio device with data is
* the top priority -- and as long as that is possible we don't do
* anything else */
u->rtpoll_item = pa_rtpoll_item_new_asyncmsgq_read(u->rtpoll, PA_RTPOLL_EARLY-1, u->jack_msgq);
if (!(u->client = jack_client_open(client_name, server_name ? JackServerName : JackNullOption, &status, server_name))) {
pa_log("jack_client_open() failed.");
goto fail;
}
ports = jack_get_ports(u->client, NULL, JACK_DEFAULT_AUDIO_TYPE, JackPortIsPhysical|JackPortIsInput);
channels = 0;
if (ports)
for (p = ports; *p; p++)
channels++;
if (!channels)
channels = m->core->default_sample_spec.channels;
if (pa_modargs_get_value_u32(ma, "channels", &channels) < 0 ||
!pa_channels_valid(channels)) {
pa_log("Failed to parse channels= argument.");
goto fail;
}
if (channels == m->core->default_channel_map.channels)
map = m->core->default_channel_map;
else
pa_channel_map_init_extend(&map, channels, PA_CHANNEL_MAP_ALSA);
if (pa_modargs_get_channel_map(ma, NULL, &map) < 0 || map.channels != channels) {
pa_log("Failed to parse channel_map= argument.");
goto fail;
}
pa_log_info("Successfully connected as '%s'", jack_get_client_name(u->client));
u->channels = ss.channels = (uint8_t) channels;
ss.rate = jack_get_sample_rate(u->client);
ss.format = PA_SAMPLE_FLOAT32NE;
pa_assert(pa_sample_spec_valid(&ss));
for (i = 0; i < ss.channels; i++) {
if (!(u->port[i] = jack_port_register(u->client, pa_channel_position_to_string(map.map[i]), JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput|JackPortIsTerminal, 0))) {
pa_log("jack_port_register() failed.");
goto fail;
}
}
pa_sink_new_data_init(&data);
data.driver = __FILE__;
data.module = m;
pa_sink_new_data_set_name(&data, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME));
pa_sink_new_data_set_sample_spec(&data, &ss);
pa_sink_new_data_set_channel_map(&data, &map);
pa_proplist_sets(data.proplist, PA_PROP_DEVICE_API, "jack");
if (server_name)
pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, server_name);
pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Jack sink (%s)", jack_get_client_name(u->client));
pa_proplist_sets(data.proplist, "jack.client_name", jack_get_client_name(u->client));
if (pa_modargs_get_proplist(ma, "sink_properties", data.proplist, PA_UPDATE_REPLACE) < 0) {
pa_log("Invalid properties");
pa_sink_new_data_done(&data);
goto fail;
}
u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY);
pa_sink_new_data_done(&data);
if (!u->sink) {
pa_log("Failed to create sink.");
goto fail;
}
u->sink->parent.process_msg = sink_process_msg;
u->sink->userdata = u;
pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
pa_sink_set_rtpoll(u->sink, u->rtpoll);
pa_sink_set_max_request(u->sink, jack_get_buffer_size(u->client) * pa_frame_size(&u->sink->sample_spec));
jack_set_process_callback(u->client, jack_process, u);
jack_on_shutdown(u->client, jack_shutdown, u);
jack_set_thread_init_callback(u->client, jack_init, u);
jack_set_buffer_size_callback(u->client, jack_buffer_size, u);
if (!(u->thread = pa_thread_new("jack-sink", thread_func, u))) {
pa_log("Failed to create thread.");
goto fail;
}
if (jack_activate(u->client)) {
pa_log("jack_activate() failed");
goto fail;
}
if (do_connect) {
for (i = 0, p = ports; i < ss.channels; i++, p++) {
if (!p || !*p) {
pa_log("Not enough physical output ports, leaving unconnected.");
break;
}
pa_log_info("Connecting %s to %s", jack_port_name(u->port[i]), *p);
if (jack_connect(u->client, jack_port_name(u->port[i]), *p)) {
pa_log("Failed to connect %s to %s, leaving unconnected.", jack_port_name(u->port[i]), *p);
break;
}
}
}
jack_port_get_latency_range(u->port[0], JackPlaybackLatency, &r);
n = r.max * pa_frame_size(&u->sink->sample_spec);
pa_sink_set_fixed_latency(u->sink, pa_bytes_to_usec(n, &u->sink->sample_spec));
pa_sink_put(u->sink);
if (ports)
jack_free(ports);
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
if (ports)
jack_free(ports);
pa__done(m);
return -1;
}
static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *memchunk) {
struct userdata *u = PA_SINK(o)->userdata;
switch (code) {
case SINK_MESSAGE_RENDER:
/* Handle the request from the JACK thread */
if (u->sink->thread_info.state == PA_SINK_RUNNING) {
pa_memchunk chunk;
size_t nbytes;
void *p;
pa_assert(offset > 0);
nbytes = (size_t) offset * pa_frame_size(&u->sink->sample_spec);
pa_sink_render_full(u->sink, nbytes, &chunk);
p = pa_memblock_acquire_chunk(&chunk);
pa_deinterleave(p, u->buffer, u->channels, sizeof(float), (unsigned) offset);
pa_memblock_release(chunk.memblock);
pa_memblock_unref(chunk.memblock);
} else {
unsigned c;
pa_sample_spec ss;
/* Humm, we're not RUNNING, hence let's write some silence */
/* This can happen if we're paused, or during shutdown (when we're unlinked but jack is still running). */
ss = u->sink->sample_spec;
ss.channels = 1;
for (c = 0; c < u->channels; c++)
pa_silence_memory(u->buffer[c], (size_t) offset * pa_sample_size(&ss), &ss);
}
u->frames_in_buffer = (jack_nframes_t) offset;
u->saved_frame_time = * (jack_nframes_t*) data;
u->saved_frame_time_valid = true;
return 0;
case SINK_MESSAGE_BUFFER_SIZE:
pa_sink_set_max_request_within_thread(u->sink, (size_t) offset * pa_frame_size(&u->sink->sample_spec));
return 0;
case SINK_MESSAGE_ON_SHUTDOWN:
pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
return 0;
case PA_SINK_MESSAGE_GET_LATENCY: {
jack_nframes_t l, ft, d;
jack_latency_range_t r;
size_t n;
/* This is the "worst-case" latency */
jack_port_get_latency_range(u->port[0], JackPlaybackLatency, &r);
l = r.max + u->frames_in_buffer;
if (u->saved_frame_time_valid) {
/* Adjust the worst case latency by the time that
* passed since we last handed data to JACK */
ft = jack_frame_time(u->client);
d = ft > u->saved_frame_time ? ft - u->saved_frame_time : 0;
l = l > d ? l - d : 0;
}
/* Convert it to usec */
n = l * pa_frame_size(&u->sink->sample_spec);
*((pa_usec_t*) data) = pa_bytes_to_usec(n, &u->sink->sample_spec);
return 0;
}
}
return pa_sink_process_msg(o, code, data, offset, memchunk);
}
