int pa__init(pa_module *m) {
pa_modargs *ma = NULL;
struct userdata *u;
pa_sink *sink = NULL;
pa_sink_input_new_data sink_input_data;
pa_bool_t sink_dont_move;
pa_source *source = NULL;
pa_source_output_new_data source_output_data;
pa_bool_t source_dont_move;
uint32_t latency_msec;
pa_sample_spec ss;
pa_channel_map map;
bool format_set = false;
bool rate_set = false;
bool channels_set = false;
pa_memchunk silence;
uint32_t adjust_time_sec;
const char *n;
pa_bool_t remix = TRUE;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments");
goto fail;
}
n = pa_modargs_get_value(ma, "source", NULL);
if (n && !(source = pa_namereg_get(m->core, n, PA_NAMEREG_SOURCE))) {
pa_log("No such source.");
goto fail;
}
n = pa_modargs_get_value(ma, "sink", NULL);
if (n && !(sink = pa_namereg_get(m->core, n, PA_NAMEREG_SINK))) {
pa_log("No such sink.");
goto fail;
}
if (pa_modargs_get_value_boolean(ma, "remix", &remix) < 0) {
pa_log("Invalid boolean remix parameter");
goto fail;
}
if (sink) {
ss = sink->sample_spec;
map = sink->channel_map;
format_set = true;
rate_set = true;
channels_set = true;
} else if (source) {
ss = source->sample_spec;
map = source->channel_map;
format_set = true;
rate_set = true;
channels_set = true;
} else {
/* FIXME: Dummy stream format, needed because pa_sink_input_new()
* requires valid sample spec and channel map even when all the FIX_*
* stream flags are specified. pa_sink_input_new() should be changed
* to ignore the sample spec and channel map when the FIX_* flags are
* present. */
ss.format = PA_SAMPLE_U8;
ss.rate = 8000;
ss.channels = 1;
map.channels = 1;
map.map[0] = PA_CHANNEL_POSITION_MONO;
}
if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
pa_log("Invalid sample format specification or channel map");
goto fail;
}
if (pa_modargs_get_value(ma, "format", NULL))
format_set = true;
if (pa_modargs_get_value(ma, "rate", NULL))
rate_set = true;
if (pa_modargs_get_value(ma, "channels", NULL) || pa_modargs_get_value(ma, "channel_map", NULL))
channels_set = true;
latency_msec = DEFAULT_LATENCY_MSEC;
if (pa_modargs_get_value_u32(ma, "latency_msec", &latency_msec) < 0 || latency_msec < 1 || latency_msec > 2000) {
pa_log("Invalid latency specification");
goto fail;
}
m->userdata = u = pa_xnew0(struct userdata, 1);
u->core = m->core;
u->module = m;
u->latency = (pa_usec_t) latency_msec * PA_USEC_PER_MSEC;
adjust_time_sec = DEFAULT_ADJUST_TIME_USEC / PA_USEC_PER_SEC;
if (pa_modargs_get_value_u32(ma, "adjust_time", &adjust_time_sec) < 0) {
pa_log("Failed to parse adjust_time value");
goto fail;
}
if (adjust_time_sec != DEFAULT_ADJUST_TIME_USEC / PA_USEC_PER_SEC)
u->adjust_time = adjust_time_sec * PA_USEC_PER_SEC;
else
u->adjust_time = DEFAULT_ADJUST_TIME_USEC;
pa_sink_input_new_data_init(&sink_input_data);
sink_input_data.driver = __FILE__;
sink_input_data.module = m;
if (sink)
pa_sink_input_new_data_set_sink(&sink_input_data, sink, FALSE);
if (pa_modargs_get_proplist(ma, "sink_input_properties", sink_input_data.proplist, PA_UPDATE_REPLACE) < 0) {
pa_log("Failed to parse the sink_input_properties value.");
pa_sink_input_new_data_done(&sink_input_data);
goto fail;
}
if (!pa_proplist_contains(sink_input_data.proplist, PA_PROP_MEDIA_ROLE))
pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_ROLE, "abstract");
pa_sink_input_new_data_set_sample_spec(&sink_input_data, &ss);
pa_sink_input_new_data_set_channel_map(&sink_input_data, &map);
sink_input_data.flags = PA_SINK_INPUT_VARIABLE_RATE | PA_SINK_INPUT_START_CORKED;
if (!remix)
sink_input_data.flags |= PA_SINK_INPUT_NO_REMIX;
if (!format_set)
sink_input_data.flags |= PA_SINK_INPUT_FIX_FORMAT;
if (!rate_set)
sink_input_data.flags |= PA_SINK_INPUT_FIX_RATE;
if (!channels_set)
sink_input_data.flags |= PA_SINK_INPUT_FIX_CHANNELS;
sink_dont_move = FALSE;
if (pa_modargs_get_value_boolean(ma, "sink_dont_move", &sink_dont_move) < 0) {
pa_log("sink_dont_move= expects a boolean argument.");
goto fail;
}
if (sink_dont_move)
sink_input_data.flags |= PA_SINK_INPUT_DONT_MOVE;
pa_sink_input_new(&u->sink_input, m->core, &sink_input_data);
pa_sink_input_new_data_done(&sink_input_data);
if (!u->sink_input)
goto fail;
/* If format, rate or channels were originally unset, they are set now
* after the pa_sink_input_new() call. */
ss = u->sink_input->sample_spec;
map = u->sink_input->channel_map;
u->sink_input->parent.process_msg = sink_input_process_msg_cb;
u->sink_input->pop = sink_input_pop_cb;
u->sink_input->process_rewind = sink_input_process_rewind_cb;
u->sink_input->kill = sink_input_kill_cb;
u->sink_input->state_change = sink_input_state_change_cb;
u->sink_input->attach = sink_input_attach_cb;
u->sink_input->detach = sink_input_detach_cb;
u->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
u->sink_input->update_max_request = sink_input_update_max_request_cb;
u->sink_input->may_move_to = sink_input_may_move_to_cb;
u->sink_input->moving = sink_input_moving_cb;
u->sink_input->suspend = sink_input_suspend_cb;
u->sink_input->userdata = u;
pa_sink_input_set_requested_latency(u->sink_input, u->latency/3);
pa_source_output_new_data_init(&source_output_data);
source_output_data.driver = __FILE__;
source_output_data.module = m;
if (source)
pa_source_output_new_data_set_source(&source_output_data, source, FALSE);
if (pa_modargs_get_proplist(ma, "source_output_properties", source_output_data.proplist, PA_UPDATE_REPLACE) < 0) {
pa_log("Failed to parse the source_output_properties value.");
pa_source_output_new_data_done(&source_output_data);
goto fail;
}
if (!pa_proplist_contains(source_output_data.proplist, PA_PROP_MEDIA_ROLE))
pa_proplist_sets(source_output_data.proplist, PA_PROP_MEDIA_ROLE, "abstract");
pa_source_output_new_data_set_sample_spec(&source_output_data, &ss);
pa_source_output_new_data_set_channel_map(&source_output_data, &map);
source_output_data.flags = PA_SOURCE_OUTPUT_START_CORKED;
if (!remix)
source_output_data.flags |= PA_SOURCE_OUTPUT_NO_REMIX;
source_dont_move = FALSE;
if (pa_modargs_get_value_boolean(ma, "source_dont_move", &source_dont_move) < 0) {
pa_log("source_dont_move= expects a boolean argument.");
goto fail;
}
if (source_dont_move)
source_output_data.flags |= PA_SOURCE_OUTPUT_DONT_MOVE;
pa_source_output_new(&u->source_output, m->core, &source_output_data);
pa_source_output_new_data_done(&source_output_data);
if (!u->source_output)
goto fail;
u->source_output->parent.process_msg = source_output_process_msg_cb;
u->source_output->push = source_output_push_cb;
u->source_output->process_rewind = source_output_process_rewind_cb;
u->source_output->kill = source_output_kill_cb;
u->source_output->attach = source_output_attach_cb;
u->source_output->detach = source_output_detach_cb;
u->source_output->state_change = source_output_state_change_cb;
u->source_output->may_move_to = source_output_may_move_to_cb;
u->source_output->moving = source_output_moving_cb;
u->source_output->suspend = source_output_suspend_cb;
u->source_output->userdata = u;
pa_source_output_set_requested_latency(u->source_output, u->latency/3);
pa_sink_input_get_silence(u->sink_input, &silence);
u->memblockq = pa_memblockq_new(
"module-loopback memblockq",
0, /* idx */
MEMBLOCKQ_MAXLENGTH, /* maxlength */
MEMBLOCKQ_MAXLENGTH, /* tlength */
&ss, /* sample_spec */
0, /* prebuf */
0, /* minreq */
0, /* maxrewind */
&silence); /* silence frame */
pa_memblock_unref(silence.memblock);
u->asyncmsgq = pa_asyncmsgq_new(0);
if (!pa_proplist_contains(u->source_output->proplist, PA_PROP_MEDIA_NAME))
pa_proplist_setf(u->source_output->proplist, PA_PROP_MEDIA_NAME, "Loopback to %s",
pa_strnull(pa_proplist_gets(u->sink_input->sink->proplist, PA_PROP_DEVICE_DESCRIPTION)));
if (!pa_proplist_contains(u->source_output->proplist, PA_PROP_MEDIA_ICON_NAME)
&& (n = pa_proplist_gets(u->sink_input->sink->proplist, PA_PROP_DEVICE_ICON_NAME)))
pa_proplist_sets(u->source_output->proplist, PA_PROP_MEDIA_ICON_NAME, n);
if (!pa_proplist_contains(u->sink_input->proplist, PA_PROP_MEDIA_NAME))
pa_proplist_setf(u->sink_input->proplist, PA_PROP_MEDIA_NAME, "Loopback from %s",
pa_strnull(pa_proplist_gets(u->source_output->source->proplist, PA_PROP_DEVICE_DESCRIPTION)));
if (source && !pa_proplist_contains(u->sink_input->proplist, PA_PROP_MEDIA_ICON_NAME)
&& (n = pa_proplist_gets(u->source_output->source->proplist, PA_PROP_DEVICE_ICON_NAME)))
pa_proplist_sets(u->sink_input->proplist, PA_PROP_MEDIA_ICON_NAME, n);
pa_sink_input_put(u->sink_input);
pa_source_output_put(u->source_output);
if (pa_source_get_state(u->source_output->source) != PA_SOURCE_SUSPENDED)
pa_sink_input_cork(u->sink_input, FALSE);
if (pa_sink_get_state(u->sink_input->sink) != PA_SINK_SUSPENDED)
pa_source_output_cork(u->source_output, FALSE);
update_adjust_timer(u);
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
pa__done(m);
return -1;
}
int pa__init(pa_module*m) {
struct userdata *u;
pa_sample_spec ss;
pa_channel_map map;
pa_modargs *ma;
pa_sink *master=NULL;
pa_sink_input_new_data sink_input_data;
pa_sink_new_data sink_data;
pa_bool_t use_volume_sharing = TRUE;
pa_bool_t force_flat_volume = FALSE;
pa_memchunk silence;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments.");
goto fail;
}
if (!(master = pa_namereg_get(m->core, pa_modargs_get_value(ma, "master", NULL), PA_NAMEREG_SINK))) {
pa_log("Master sink not found");
goto fail;
}
pa_assert(master);
ss = master->sample_spec;
ss.format = PA_SAMPLE_FLOAT32;
map = master->channel_map;
if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
pa_log("Invalid sample format specification or channel map");
goto fail;
}
if (pa_modargs_get_value_boolean(ma, "use_volume_sharing", &use_volume_sharing) < 0) {
pa_log("use_volume_sharing= expects a boolean argument");
goto fail;
}
if (pa_modargs_get_value_boolean(ma, "force_flat_volume", &force_flat_volume) < 0) {
pa_log("force_flat_volume= expects a boolean argument");
goto fail;
}
if (use_volume_sharing && force_flat_volume) {
pa_log("Flat volume can't be forced when using volume sharing.");
goto fail;
}
u = pa_xnew0(struct userdata, 1);
u->module = m;
m->userdata = u;
u->channels = ss.channels;
/* Create sink */
pa_sink_new_data_init(&sink_data);
sink_data.driver = __FILE__;
sink_data.module = m;
if (!(sink_data.name = pa_xstrdup(pa_modargs_get_value(ma, "sink_name", NULL))))
sink_data.name = pa_sprintf_malloc("%s.vsink", master->name);
pa_sink_new_data_set_sample_spec(&sink_data, &ss);
pa_sink_new_data_set_channel_map(&sink_data, &map);
pa_proplist_sets(sink_data.proplist, PA_PROP_DEVICE_MASTER_DEVICE, master->name);
pa_proplist_sets(sink_data.proplist, PA_PROP_DEVICE_CLASS, "filter");
pa_proplist_sets(sink_data.proplist, "device.vsink.name", sink_data.name);
if (pa_modargs_get_proplist(ma, "sink_properties", sink_data.proplist, PA_UPDATE_REPLACE) < 0) {
pa_log("Invalid properties");
pa_sink_new_data_done(&sink_data);
goto fail;
}
if ((u->auto_desc = !pa_proplist_contains(sink_data.proplist, PA_PROP_DEVICE_DESCRIPTION))) {
const char *z;
z = pa_proplist_gets(master->proplist, PA_PROP_DEVICE_DESCRIPTION);
pa_proplist_setf(sink_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Virtual Sink %s on %s", sink_data.name, z ? z : master->name);
}
u->sink = pa_sink_new(m->core, &sink_data, (master->flags & (PA_SINK_LATENCY|PA_SINK_DYNAMIC_LATENCY))
| (use_volume_sharing ? PA_SINK_SHARE_VOLUME_WITH_MASTER : 0));
pa_sink_new_data_done(&sink_data);
if (!u->sink) {
pa_log("Failed to create sink.");
goto fail;
}
u->sink->parent.process_msg = sink_process_msg_cb;
u->sink->set_state = sink_set_state_cb;
u->sink->update_requested_latency = sink_update_requested_latency_cb;
u->sink->request_rewind = sink_request_rewind_cb;
pa_sink_set_set_mute_callback(u->sink, sink_set_mute_cb);
if (!use_volume_sharing) {
pa_sink_set_set_volume_callback(u->sink, sink_set_volume_cb);
pa_sink_enable_decibel_volume(u->sink, TRUE);
}
/* Normally this flag would be enabled automatically be we can force it. */
if (force_flat_volume)
u->sink->flags |= PA_SINK_FLAT_VOLUME;
u->sink->userdata = u;
pa_sink_set_asyncmsgq(u->sink, master->asyncmsgq);
/* Create sink input */
pa_sink_input_new_data_init(&sink_input_data);
sink_input_data.driver = __FILE__;
sink_input_data.module = m;
pa_sink_input_new_data_set_sink(&sink_input_data, master, FALSE);
sink_input_data.origin_sink = u->sink;
pa_proplist_setf(sink_input_data.proplist, PA_PROP_MEDIA_NAME, "Virtual Sink Stream from %s", pa_proplist_gets(u->sink->proplist, PA_PROP_DEVICE_DESCRIPTION));
pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_ROLE, "filter");
pa_sink_input_new_data_set_sample_spec(&sink_input_data, &ss);
pa_sink_input_new_data_set_channel_map(&sink_input_data, &map);
pa_sink_input_new(&u->sink_input, m->core, &sink_input_data);
pa_sink_input_new_data_done(&sink_input_data);
if (!u->sink_input)
goto fail;
u->sink_input->pop = sink_input_pop_cb;
u->sink_input->process_rewind = sink_input_process_rewind_cb;
u->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
u->sink_input->update_max_request = sink_input_update_max_request_cb;
u->sink_input->update_sink_latency_range = sink_input_update_sink_latency_range_cb;
u->sink_input->update_sink_fixed_latency = sink_input_update_sink_fixed_latency_cb;
u->sink_input->kill = sink_input_kill_cb;
u->sink_input->attach = sink_input_attach_cb;
u->sink_input->detach = sink_input_detach_cb;
u->sink_input->state_change = sink_input_state_change_cb;
u->sink_input->moving = sink_input_moving_cb;
u->sink_input->volume_changed = use_volume_sharing ? NULL : sink_input_volume_changed_cb;
u->sink_input->mute_changed = sink_input_mute_changed_cb;
u->sink_input->userdata = u;
u->sink->input_to_master = u->sink_input;
pa_sink_input_get_silence(u->sink_input, &silence);
u->memblockq = pa_memblockq_new("module-virtual-sink memblockq", 0, MEMBLOCKQ_MAXLENGTH, 0, &ss, 1, 1, 0, &silence);
pa_memblock_unref(silence.memblock);
/* (9) INITIALIZE ANYTHING ELSE YOU NEED HERE */
pa_sink_put(u->sink);
pa_sink_input_put(u->sink_input);
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
pa__done(m);
return -1;
}
void pa_simple_protocol_connect(pa_simple_protocol *p, pa_iochannel *io, pa_simple_options *o) {
connection *c = NULL;
char pname[128];
pa_client_new_data client_data;
pa_assert(p);
pa_assert(io);
pa_assert(o);
if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) {
pa_log("Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS);
pa_iochannel_free(io);
return;
}
c = pa_msgobject_new(connection);
c->parent.parent.free = connection_free;
c->parent.process_msg = connection_process_msg;
c->io = io;
pa_iochannel_set_callback(c->io, io_callback, c);
c->sink_input = NULL;
c->source_output = NULL;
c->input_memblockq = c->output_memblockq = NULL;
c->protocol = p;
c->options = pa_simple_options_ref(o);
c->playback.current_memblock = NULL;
c->playback.memblock_index = 0;
c->dead = false;
c->playback.underrun = true;
pa_atomic_store(&c->playback.missing, 0);
pa_client_new_data_init(&client_data);
client_data.module = o->module;
client_data.driver = __FILE__;
pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname));
pa_proplist_setf(client_data.proplist, PA_PROP_APPLICATION_NAME, "Simple client (%s)", pname);
pa_proplist_sets(client_data.proplist, "simple-protocol.peer", pname);
c->client = pa_client_new(p->core, &client_data);
pa_client_new_data_done(&client_data);
if (!c->client)
goto fail;
c->client->kill = client_kill_cb;
c->client->userdata = c;
if (o->playback) {
pa_sink_input_new_data data;
pa_memchunk silence;
size_t l;
pa_sink *sink;
if (!(sink = pa_namereg_get(c->protocol->core, o->default_sink, PA_NAMEREG_SINK))) {
pa_log("Failed to get sink.");
goto fail;
}
pa_sink_input_new_data_init(&data);
data.driver = __FILE__;
data.module = o->module;
data.client = c->client;
pa_sink_input_new_data_set_sink(&data, sink, false);
pa_proplist_update(data.proplist, PA_UPDATE_MERGE, c->client->proplist);
pa_sink_input_new_data_set_sample_spec(&data, &o->sample_spec);
pa_sink_input_new(&c->sink_input, p->core, &data);
pa_sink_input_new_data_done(&data);
if (!c->sink_input) {
pa_log("Failed to create sink input.");
goto fail;
}
c->sink_input->parent.process_msg = sink_input_process_msg;
c->sink_input->pop = sink_input_pop_cb;
c->sink_input->process_rewind = sink_input_process_rewind_cb;
c->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
c->sink_input->kill = sink_input_kill_cb;
c->sink_input->userdata = c;
pa_sink_input_set_requested_latency(c->sink_input, DEFAULT_SINK_LATENCY);
l = (size_t) ((double) pa_bytes_per_second(&o->sample_spec)*PLAYBACK_BUFFER_SECONDS);
pa_sink_input_get_silence(c->sink_input, &silence);
c->input_memblockq = pa_memblockq_new(
"simple protocol connection input_memblockq",
0,
l,
l,
&o->sample_spec,
(size_t) -1,
l/PLAYBACK_BUFFER_FRAGMENTS,
0,
&silence);
pa_memblock_unref(silence.memblock);
pa_iochannel_socket_set_rcvbuf(io, l);
pa_atomic_store(&c->playback.missing, (int) pa_memblockq_pop_missing(c->input_memblockq));
pa_sink_input_put(c->sink_input);
}
if (o->record) {
pa_source_output_new_data data;
size_t l;
pa_source *source;
if (!(source = pa_namereg_get(c->protocol->core, o->default_source, PA_NAMEREG_SOURCE))) {
pa_log("Failed to get source.");
goto fail;
}
pa_source_output_new_data_init(&data);
data.driver = __FILE__;
data.module = o->module;
data.client = c->client;
pa_source_output_new_data_set_source(&data, source, false);
pa_proplist_update(data.proplist, PA_UPDATE_MERGE, c->client->proplist);
pa_source_output_new_data_set_sample_spec(&data, &o->sample_spec);
pa_source_output_new(&c->source_output, p->core, &data);
pa_source_output_new_data_done(&data);
if (!c->source_output) {
pa_log("Failed to create source output.");
goto fail;
}
c->source_output->push = source_output_push_cb;
c->source_output->kill = source_output_kill_cb;
c->source_output->get_latency = source_output_get_latency_cb;
c->source_output->userdata = c;
pa_source_output_set_requested_latency(c->source_output, DEFAULT_SOURCE_LATENCY);
l = (size_t) (pa_bytes_per_second(&o->sample_spec)*RECORD_BUFFER_SECONDS);
c->output_memblockq = pa_memblockq_new(
"simple protocol connection output_memblockq",
0,
l,
0,
&o->sample_spec,
1,
0,
0,
NULL);
pa_iochannel_socket_set_sndbuf(io, l);
pa_source_output_put(c->source_output);
}
pa_idxset_put(p->connections, c, NULL);
return;
fail:
connection_unlink(c);
}
int pa_play_file(
pa_sink *sink,
const char *fname,
const pa_cvolume *volume) {
file_stream *u = NULL;
pa_sample_spec ss;
pa_channel_map cm;
pa_sink_input_new_data data;
int fd;
SF_INFO sfi;
pa_memchunk silence;
pa_assert(sink);
pa_assert(fname);
u = pa_msgobject_new(file_stream);
u->parent.parent.free = file_stream_free;
u->parent.process_msg = file_stream_process_msg;
u->core = sink->core;
u->sink_input = NULL;
u->sndfile = NULL;
u->readf_function = NULL;
u->memblockq = NULL;
if ((fd = pa_open_cloexec(fname, O_RDONLY, 0)) < 0) {
pa_log("Failed to open file %s: %s", fname, pa_cstrerror(errno));
goto fail;
}
/* FIXME: For now we just use posix_fadvise to avoid page faults
* when accessing the file data. Eventually we should move the
* file reader into the main event loop and pass the data over the
* asyncmsgq. */
#ifdef HAVE_POSIX_FADVISE
if (posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL) < 0) {
pa_log_warn("POSIX_FADV_SEQUENTIAL failed: %s", pa_cstrerror(errno));
goto fail;
} else
pa_log_debug("POSIX_FADV_SEQUENTIAL succeeded.");
if (posix_fadvise(fd, 0, 0, POSIX_FADV_WILLNEED) < 0) {
pa_log_warn("POSIX_FADV_WILLNEED failed: %s", pa_cstrerror(errno));
goto fail;
} else
pa_log_debug("POSIX_FADV_WILLNEED succeeded.");
#endif
pa_zero(sfi);
if (!(u->sndfile = sf_open_fd(fd, SFM_READ, &sfi, 1))) {
pa_log("Failed to open file %s", fname);
goto fail;
}
fd = -1;
if (pa_sndfile_read_sample_spec(u->sndfile, &ss) < 0) {
pa_log("Failed to determine file sample format.");
goto fail;
}
if (pa_sndfile_read_channel_map(u->sndfile, &cm) < 0) {
if (ss.channels > 2)
pa_log_info("Failed to determine file channel map, synthesizing one.");
pa_channel_map_init_extend(&cm, ss.channels, PA_CHANNEL_MAP_DEFAULT);
}
u->readf_function = pa_sndfile_readf_function(&ss);
pa_sink_input_new_data_init(&data);
pa_sink_input_new_data_set_sink(&data, sink, FALSE);
data.driver = __FILE__;
pa_sink_input_new_data_set_sample_spec(&data, &ss);
pa_sink_input_new_data_set_channel_map(&data, &cm);
pa_sink_input_new_data_set_volume(&data, volume);
pa_proplist_sets(data.proplist, PA_PROP_MEDIA_NAME, pa_path_get_filename(fname));
pa_proplist_sets(data.proplist, PA_PROP_MEDIA_FILENAME, fname);
pa_sndfile_init_proplist(u->sndfile, data.proplist);
pa_sink_input_new(&u->sink_input, sink->core, &data);
pa_sink_input_new_data_done(&data);
if (!u->sink_input)
goto fail;
u->sink_input->pop = sink_input_pop_cb;
u->sink_input->process_rewind = sink_input_process_rewind_cb;
u->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
u->sink_input->kill = sink_input_kill_cb;
u->sink_input->state_change = sink_input_state_change_cb;
u->sink_input->userdata = u;
pa_sink_input_get_silence(u->sink_input, &silence);
u->memblockq = pa_memblockq_new("sound-file-stream memblockq", 0, MEMBLOCKQ_MAXLENGTH, 0, &ss, 1, 1, 0, &silence);
pa_memblock_unref(silence.memblock);
pa_sink_input_put(u->sink_input);
/* The reference to u is dangling here, because we want to keep
* this stream around until it is fully played. */
return 0;
fail:
file_stream_unref(u);
if (fd >= 0)
pa_close(fd);
return -1;
}
int pa__init(pa_module *m) {
pa_modargs *ma = NULL;
struct userdata *u;
pa_sink *sink;
pa_sink_input_new_data sink_input_data;
pa_source *source;
pa_source_output_new_data source_output_data;
uint32_t latency_msec;
pa_sample_spec ss;
pa_channel_map map;
pa_memchunk silence;
uint32_t adjust_time_sec;
const char *n;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments");
goto fail;
}
if (!(source = pa_namereg_get(m->core, pa_modargs_get_value(ma, "source", NULL), PA_NAMEREG_SOURCE))) {
pa_log("No such source.");
goto fail;
}
if (!(sink = pa_namereg_get(m->core, pa_modargs_get_value(ma, "sink", NULL), PA_NAMEREG_SINK))) {
pa_log("No such sink.");
goto fail;
}
ss = sink->sample_spec;
map = sink->channel_map;
if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
pa_log("Invalid sample format specification or channel map");
goto fail;
}
latency_msec = DEFAULT_LATENCY_MSEC;
if (pa_modargs_get_value_u32(ma, "latency_msec", &latency_msec) < 0 || latency_msec < 1 || latency_msec > 2000) {
pa_log("Invalid latency specification");
goto fail;
}
m->userdata = u = pa_xnew0(struct userdata, 1);
u->core = m->core;
u->module = m;
u->latency = (pa_usec_t) latency_msec * PA_USEC_PER_MSEC;
adjust_time_sec = DEFAULT_ADJUST_TIME_USEC / PA_USEC_PER_SEC;
if (pa_modargs_get_value_u32(ma, "adjust_time", &adjust_time_sec) < 0) {
pa_log("Failed to parse adjust_time value");
goto fail;
}
if (adjust_time_sec != DEFAULT_ADJUST_TIME_USEC / PA_USEC_PER_SEC)
u->adjust_time = adjust_time_sec * PA_USEC_PER_SEC;
else
u->adjust_time = DEFAULT_ADJUST_TIME_USEC;
pa_sink_input_new_data_init(&sink_input_data);
sink_input_data.driver = __FILE__;
sink_input_data.module = m;
sink_input_data.sink = sink;
if ((n = pa_modargs_get_value(ma, "sink_input_name", NULL)))
pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_NAME, n);
else
pa_proplist_setf(sink_input_data.proplist, PA_PROP_MEDIA_NAME, "Loopback from %s",
pa_strnull(pa_proplist_gets(source->proplist, PA_PROP_DEVICE_DESCRIPTION)));
if ((n = pa_modargs_get_value(ma, "sink_input_role", NULL)))
pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_ROLE, n);
else
pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_ROLE, "abstract");
if ((n = pa_proplist_gets(source->proplist, PA_PROP_DEVICE_ICON_NAME)))
pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_ICON_NAME, n);
pa_sink_input_new_data_set_sample_spec(&sink_input_data, &ss);
pa_sink_input_new_data_set_channel_map(&sink_input_data, &map);
sink_input_data.flags = PA_SINK_INPUT_VARIABLE_RATE;
pa_sink_input_new(&u->sink_input, m->core, &sink_input_data);
pa_sink_input_new_data_done(&sink_input_data);
if (!u->sink_input)
goto fail;
u->sink_input->parent.process_msg = sink_input_process_msg_cb;
u->sink_input->pop = sink_input_pop_cb;
u->sink_input->process_rewind = sink_input_process_rewind_cb;
u->sink_input->kill = sink_input_kill_cb;
u->sink_input->attach = sink_input_attach_cb;
u->sink_input->detach = sink_input_detach_cb;
u->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
u->sink_input->update_max_request = sink_input_update_max_request_cb;
u->sink_input->may_move_to = sink_input_may_move_to_cb;
u->sink_input->moving = sink_input_moving_cb;
u->sink_input->userdata = u;
pa_sink_input_set_requested_latency(u->sink_input, u->latency/3);
pa_source_output_new_data_init(&source_output_data);
source_output_data.driver = __FILE__;
source_output_data.module = m;
source_output_data.source = source;
if ((n = pa_modargs_get_value(ma, "source_output_name", NULL)))
pa_proplist_sets(source_output_data.proplist, PA_PROP_MEDIA_NAME, n);
else
pa_proplist_setf(source_output_data.proplist, PA_PROP_MEDIA_NAME, "Loopback to %s",
pa_strnull(pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_DESCRIPTION)));
if ((n = pa_modargs_get_value(ma, "source_output_role", NULL)))
pa_proplist_sets(source_output_data.proplist, PA_PROP_MEDIA_ROLE, n);
else
pa_proplist_sets(source_output_data.proplist, PA_PROP_MEDIA_ROLE, "abstract");
if ((n = pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_ICON_NAME)))
pa_proplist_sets(source_output_data.proplist, PA_PROP_MEDIA_ICON_NAME, n);
pa_source_output_new_data_set_sample_spec(&source_output_data, &ss);
pa_sink_input_new_data_set_channel_map(&sink_input_data, &map);
pa_source_output_new(&u->source_output, m->core, &source_output_data);
pa_source_output_new_data_done(&source_output_data);
if (!u->source_output)
goto fail;
u->source_output->parent.process_msg = source_output_process_msg_cb;
u->source_output->push = source_output_push_cb;
u->source_output->process_rewind = source_output_process_rewind_cb;
u->source_output->kill = source_output_kill_cb;
u->source_output->attach = source_output_attach_cb;
u->source_output->detach = source_output_detach_cb;
u->source_output->state_change = source_output_state_change_cb;
u->source_output->may_move_to = source_output_may_move_to_cb;
u->source_output->moving = source_output_moving_cb;
u->source_output->userdata = u;
pa_source_output_set_requested_latency(u->source_output, u->latency/3);
pa_sink_input_get_silence(u->sink_input, &silence);
u->memblockq = pa_memblockq_new(
0, /* idx */
MEMBLOCKQ_MAXLENGTH, /* maxlength */
MEMBLOCKQ_MAXLENGTH, /* tlength */
pa_frame_size(&ss), /* base */
0, /* prebuf */
0, /* minreq */
0, /* maxrewind */
&silence); /* silence frame */
pa_memblock_unref(silence.memblock);
u->asyncmsgq = pa_asyncmsgq_new(0);
pa_sink_input_put(u->sink_input);
pa_source_output_put(u->source_output);
if (u->adjust_time > 0)
u->time_event = pa_core_rttime_new(m->core, pa_rtclock_now() + u->adjust_time, time_callback, u);
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
pa__done(m);
return -1;
}
int pa__init(pa_module*m) {
struct userdata *u;
pa_sample_spec ss, sink_input_ss;
pa_channel_map map, sink_input_map;
pa_modargs *ma;
pa_sink *master=NULL;
pa_sink_input_new_data sink_input_data;
pa_sink_new_data sink_data;
bool use_volume_sharing = true;
bool force_flat_volume = false;
pa_memchunk silence;
const char *hrir_file;
unsigned i, j, found_channel_left, found_channel_right;
float *hrir_data;
pa_sample_spec hrir_ss;
pa_channel_map hrir_map;
pa_sample_spec hrir_temp_ss;
pa_memchunk hrir_temp_chunk, hrir_temp_chunk_resampled;
pa_resampler *resampler;
size_t hrir_copied_length, hrir_total_length;
hrir_temp_chunk.memblock = NULL;
hrir_temp_chunk_resampled.memblock = NULL;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments.");
goto fail;
}
if (!(master = pa_namereg_get(m->core, pa_modargs_get_value(ma, "master", NULL), PA_NAMEREG_SINK))) {
pa_log("Master sink not found");
goto fail;
}
pa_assert(master);
u = pa_xnew0(struct userdata, 1);
u->module = m;
m->userdata = u;
/* Initialize hrir and input buffer */
/* this is the hrir file for the left ear! */
if (!(hrir_file = pa_modargs_get_value(ma, "hrir", NULL))) {
pa_log("The mandatory 'hrir' module argument is missing.");
goto fail;
}
if (pa_sound_file_load(master->core->mempool, hrir_file, &hrir_temp_ss, &hrir_map, &hrir_temp_chunk, NULL) < 0) {
pa_log("Cannot load hrir file.");
goto fail;
}
/* sample spec / map of hrir */
hrir_ss.format = PA_SAMPLE_FLOAT32;
hrir_ss.rate = master->sample_spec.rate;
hrir_ss.channels = hrir_temp_ss.channels;
/* sample spec of sink */
ss = hrir_ss;
map = hrir_map;
if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
pa_log("Invalid sample format specification or channel map");
goto fail;
}
ss.format = PA_SAMPLE_FLOAT32;
hrir_ss.rate = ss.rate;
u->channels = ss.channels;
if (pa_modargs_get_value_boolean(ma, "use_volume_sharing", &use_volume_sharing) < 0) {
pa_log("use_volume_sharing= expects a boolean argument");
goto fail;
}
if (pa_modargs_get_value_boolean(ma, "force_flat_volume", &force_flat_volume) < 0) {
pa_log("force_flat_volume= expects a boolean argument");
goto fail;
}
if (use_volume_sharing && force_flat_volume) {
pa_log("Flat volume can't be forced when using volume sharing.");
goto fail;
}
/* sample spec / map of sink input */
pa_channel_map_init_stereo(&sink_input_map);
sink_input_ss.channels = 2;
sink_input_ss.format = PA_SAMPLE_FLOAT32;
sink_input_ss.rate = ss.rate;
u->sink_fs = pa_frame_size(&ss);
u->fs = pa_frame_size(&sink_input_ss);
/* Create sink */
pa_sink_new_data_init(&sink_data);
sink_data.driver = __FILE__;
sink_data.module = m;
if (!(sink_data.name = pa_xstrdup(pa_modargs_get_value(ma, "sink_name", NULL))))
sink_data.name = pa_sprintf_malloc("%s.vsurroundsink", master->name);
pa_sink_new_data_set_sample_spec(&sink_data, &ss);
pa_sink_new_data_set_channel_map(&sink_data, &map);
pa_proplist_sets(sink_data.proplist, PA_PROP_DEVICE_MASTER_DEVICE, master->name);
pa_proplist_sets(sink_data.proplist, PA_PROP_DEVICE_CLASS, "filter");
pa_proplist_sets(sink_data.proplist, "device.vsurroundsink.name", sink_data.name);
if (pa_modargs_get_proplist(ma, "sink_properties", sink_data.proplist, PA_UPDATE_REPLACE) < 0) {
pa_log("Invalid properties");
pa_sink_new_data_done(&sink_data);
goto fail;
}
if ((u->auto_desc = !pa_proplist_contains(sink_data.proplist, PA_PROP_DEVICE_DESCRIPTION))) {
const char *z;
z = pa_proplist_gets(master->proplist, PA_PROP_DEVICE_DESCRIPTION);
pa_proplist_setf(sink_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Virtual Surround Sink %s on %s", sink_data.name, z ? z : master->name);
}
u->sink = pa_sink_new(m->core, &sink_data, (master->flags & (PA_SINK_LATENCY|PA_SINK_DYNAMIC_LATENCY))
| (use_volume_sharing ? PA_SINK_SHARE_VOLUME_WITH_MASTER : 0));
pa_sink_new_data_done(&sink_data);
if (!u->sink) {
pa_log("Failed to create sink.");
goto fail;
}
u->sink->parent.process_msg = sink_process_msg_cb;
u->sink->set_state = sink_set_state_cb;
u->sink->update_requested_latency = sink_update_requested_latency_cb;
u->sink->request_rewind = sink_request_rewind_cb;
pa_sink_set_set_mute_callback(u->sink, sink_set_mute_cb);
if (!use_volume_sharing) {
pa_sink_set_set_volume_callback(u->sink, sink_set_volume_cb);
pa_sink_enable_decibel_volume(u->sink, true);
}
/* Normally this flag would be enabled automatically be we can force it. */
if (force_flat_volume)
u->sink->flags |= PA_SINK_FLAT_VOLUME;
u->sink->userdata = u;
pa_sink_set_asyncmsgq(u->sink, master->asyncmsgq);
/* Create sink input */
pa_sink_input_new_data_init(&sink_input_data);
sink_input_data.driver = __FILE__;
sink_input_data.module = m;
pa_sink_input_new_data_set_sink(&sink_input_data, master, false);
sink_input_data.origin_sink = u->sink;
pa_proplist_setf(sink_input_data.proplist, PA_PROP_MEDIA_NAME, "Virtual Surround Sink Stream from %s", pa_proplist_gets(u->sink->proplist, PA_PROP_DEVICE_DESCRIPTION));
pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_ROLE, "filter");
pa_sink_input_new_data_set_sample_spec(&sink_input_data, &sink_input_ss);
pa_sink_input_new_data_set_channel_map(&sink_input_data, &sink_input_map);
pa_sink_input_new(&u->sink_input, m->core, &sink_input_data);
pa_sink_input_new_data_done(&sink_input_data);
if (!u->sink_input)
goto fail;
u->sink_input->pop = sink_input_pop_cb;
u->sink_input->process_rewind = sink_input_process_rewind_cb;
u->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
u->sink_input->update_max_request = sink_input_update_max_request_cb;
u->sink_input->update_sink_latency_range = sink_input_update_sink_latency_range_cb;
u->sink_input->update_sink_fixed_latency = sink_input_update_sink_fixed_latency_cb;
u->sink_input->kill = sink_input_kill_cb;
u->sink_input->attach = sink_input_attach_cb;
u->sink_input->detach = sink_input_detach_cb;
u->sink_input->state_change = sink_input_state_change_cb;
u->sink_input->moving = sink_input_moving_cb;
u->sink_input->volume_changed = use_volume_sharing ? NULL : sink_input_volume_changed_cb;
u->sink_input->mute_changed = sink_input_mute_changed_cb;
u->sink_input->userdata = u;
u->sink->input_to_master = u->sink_input;
pa_sink_input_get_silence(u->sink_input, &silence);
u->memblockq = pa_memblockq_new("module-virtual-surround-sink memblockq", 0, MEMBLOCKQ_MAXLENGTH, 0, &sink_input_ss, 1, 1, 0, &silence);
pa_memblock_unref(silence.memblock);
/* resample hrir */
resampler = pa_resampler_new(u->sink->core->mempool, &hrir_temp_ss, &hrir_map, &hrir_ss, &hrir_map,
PA_RESAMPLER_SRC_SINC_BEST_QUALITY, PA_RESAMPLER_NO_REMAP);
u->hrir_samples = hrir_temp_chunk.length / pa_frame_size(&hrir_temp_ss) * hrir_ss.rate / hrir_temp_ss.rate;
if (u->hrir_samples > 64) {
u->hrir_samples = 64;
pa_log("The (resampled) hrir contains more than 64 samples. Only the first 64 samples will be used to limit processor usage.");
}
hrir_total_length = u->hrir_samples * pa_frame_size(&hrir_ss);
u->hrir_channels = hrir_ss.channels;
u->hrir_data = (float *) pa_xmalloc(hrir_total_length);
hrir_copied_length = 0;
/* add silence to the hrir until we get enough samples out of the resampler */
while (hrir_copied_length < hrir_total_length) {
pa_resampler_run(resampler, &hrir_temp_chunk, &hrir_temp_chunk_resampled);
if (hrir_temp_chunk.memblock != hrir_temp_chunk_resampled.memblock) {
/* Silence input block */
pa_silence_memblock(hrir_temp_chunk.memblock, &hrir_temp_ss);
}
if (hrir_temp_chunk_resampled.memblock) {
/* Copy hrir data */
hrir_data = (float *) pa_memblock_acquire(hrir_temp_chunk_resampled.memblock);
if (hrir_total_length - hrir_copied_length >= hrir_temp_chunk_resampled.length) {
memcpy(u->hrir_data + hrir_copied_length, hrir_data, hrir_temp_chunk_resampled.length);
hrir_copied_length += hrir_temp_chunk_resampled.length;
} else {
memcpy(u->hrir_data + hrir_copied_length, hrir_data, hrir_total_length - hrir_copied_length);
hrir_copied_length = hrir_total_length;
}
pa_memblock_release(hrir_temp_chunk_resampled.memblock);
pa_memblock_unref(hrir_temp_chunk_resampled.memblock);
hrir_temp_chunk_resampled.memblock = NULL;
}
}
pa_resampler_free(resampler);
pa_memblock_unref(hrir_temp_chunk.memblock);
hrir_temp_chunk.memblock = NULL;
if (hrir_map.channels < map.channels) {
pa_log("hrir file does not have enough channels!");
goto fail;
}
normalize_hrir(u);
/* create mapping between hrir and input */
u->mapping_left = (unsigned *) pa_xnew0(unsigned, u->channels);
u->mapping_right = (unsigned *) pa_xnew0(unsigned, u->channels);
for (i = 0; i < map.channels; i++) {
found_channel_left = 0;
found_channel_right = 0;
for (j = 0; j < hrir_map.channels; j++) {
if (hrir_map.map[j] == map.map[i]) {
u->mapping_left[i] = j;
found_channel_left = 1;
}
if (hrir_map.map[j] == mirror_channel(map.map[i])) {
u->mapping_right[i] = j;
found_channel_right = 1;
}
}
if (!found_channel_left) {
pa_log("Cannot find mapping for channel %s", pa_channel_position_to_string(map.map[i]));
goto fail;
}
if (!found_channel_right) {
pa_log("Cannot find mapping for channel %s", pa_channel_position_to_string(mirror_channel(map.map[i])));
goto fail;
}
}
u->input_buffer = pa_xmalloc0(u->hrir_samples * u->sink_fs);
u->input_buffer_offset = 0;
pa_sink_put(u->sink);
pa_sink_input_put(u->sink_input);
pa_modargs_free(ma);
return 0;
fail:
if (hrir_temp_chunk.memblock)
pa_memblock_unref(hrir_temp_chunk.memblock);
if (hrir_temp_chunk_resampled.memblock)
pa_memblock_unref(hrir_temp_chunk_resampled.memblock);
if (ma)
pa_modargs_free(ma);
pa__done(m);
return -1;
}
