APULSE_EXPORT
int
pa_sample_spec_valid(const pa_sample_spec *spec)
{
return spec && pa_sample_format_valid(spec->format)
&& pa_sample_rate_valid(spec->rate)
&& pa_channels_valid(spec->channels);
}
int pa_cvolume_valid(const pa_cvolume *v) {
unsigned c;
pa_assert(v);
if (!pa_channels_valid(v->channels))
return 0;
for (c = 0; c < v->channels; c++)
if (!PA_VOLUME_IS_VALID(v->values[c]))
return 0;
return 1;
}
pa_cvolume* pa_cvolume_set(pa_cvolume *a, unsigned channels, pa_volume_t v) {
int i;
pa_assert(a);
pa_assert(pa_channels_valid(channels));
a->channels = (uint8_t) channels;
for (i = 0; i < a->channels; i++)
/* Clamp in case there is stale data that exceeds the current
* PA_VOLUME_MAX */
a->values[i] = PA_CLAMP_VOLUME(v);
return a;
}
static int parse_sample_channels(pa_config_parser_state *state) {
struct channel_conf_info *i;
int32_t n;
pa_assert(state);
i = state->data;
if (pa_atoi(state->rvalue, &n) < 0 || !pa_channels_valid(n)) {
pa_log(_("[%s:%u] Invalid sample channels '%s'."), state->filename, state->lineno, state->rvalue);
return -1;
}
i->conf->default_sample_spec.channels = (uint8_t) n;
i->default_sample_spec_set = true;
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;
}
