-/* $Id$ */
-
/***
This file is part of PulseAudio.
-
+
+ Copyright 2004-2008 Lennart Poettering
+
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
- by the Free Software Foundation; either version 2 of the License,
+ by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
-
+
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
-
+
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
#include <config.h>
#endif
-#include <assert.h>
#include <stdio.h>
+#include <errno.h>
+#include <pulse/rtclock.h>
#include <pulse/timeval.h>
#include <pulse/xmalloc.h>
+#include <pulsecore/macro.h>
#include <pulsecore/module.h>
#include <pulsecore/llist.h>
#include <pulsecore/sink.h>
#include <pulsecore/sink-input.h>
#include <pulsecore/memblockq.h>
#include <pulsecore/log.h>
+#include <pulsecore/core-rtclock.h>
#include <pulsecore/core-util.h>
#include <pulsecore/modargs.h>
#include <pulsecore/namereg.h>
+#include <pulsecore/mutex.h>
+#include <pulsecore/thread.h>
+#include <pulsecore/thread-mq.h>
+#include <pulsecore/rtpoll.h>
+#include <pulsecore/core-error.h>
+#include <pulsecore/time-smoother.h>
#include "module-combine-symdef.h"
-PA_MODULE_AUTHOR("Lennart Poettering")
-PA_MODULE_DESCRIPTION("Combine multiple sinks to one")
-PA_MODULE_VERSION(PACKAGE_VERSION)
+PA_MODULE_AUTHOR("Lennart Poettering");
+PA_MODULE_DESCRIPTION("Combine multiple sinks to one");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_LOAD_ONCE(FALSE);
PA_MODULE_USAGE(
"sink_name=<name for the sink> "
- "master=<master sink> "
+ "sink_properties=<properties for the sink> "
"slaves=<slave sinks> "
- "adjust_time=<seconds> "
+ "adjust_time=<how often to readjust rates in s> "
"resample_method=<method> "
"format=<sample format> "
- "channels=<number of channels> "
"rate=<sample rate> "
- "channel_map=<channel map> ")
+ "channels=<number of channels> "
+ "channel_map=<channel map>");
#define DEFAULT_SINK_NAME "combined"
-#define MEMBLOCKQ_MAXLENGTH (1024*170)
-#define RENDER_SIZE (1024*10)
-#define DEFAULT_ADJUST_TIME 20
+#define MEMBLOCKQ_MAXLENGTH (1024*1024*16)
+
+#define DEFAULT_ADJUST_TIME_USEC (10*PA_USEC_PER_SEC)
+
+#define BLOCK_USEC (PA_USEC_PER_MSEC * 200)
static const char* const valid_modargs[] = {
"sink_name",
- "master",
+ "sink_properties",
"slaves",
"adjust_time",
"resample_method",
"format",
- "channels",
"rate",
+ "channels",
"channel_map",
NULL
};
struct output {
struct userdata *userdata;
+
+ pa_sink *sink;
pa_sink_input *sink_input;
- size_t counter;
+ pa_bool_t ignore_state_change;
+
+ pa_asyncmsgq *inq, /* Message queue from the sink thread to this sink input */
+ *outq; /* Message queue from this sink input to the sink thread */
+ pa_rtpoll_item *inq_rtpoll_item_read, *inq_rtpoll_item_write;
+ pa_rtpoll_item *outq_rtpoll_item_read, *outq_rtpoll_item_write;
+
pa_memblockq *memblockq;
+
+ /* For communication of the stream latencies to the main thread */
pa_usec_t total_latency;
+
+ /* For coomunication of the stream parameters to the sink thread */
+ pa_atomic_t max_request;
+ pa_atomic_t requested_latency;
+
PA_LLIST_FIELDS(struct output);
};
struct userdata {
- pa_module *module;
pa_core *core;
+ pa_module *module;
pa_sink *sink;
- unsigned n_outputs;
- struct output *master;
+
+ pa_thread *thread;
+ pa_thread_mq thread_mq;
+ pa_rtpoll *rtpoll;
+
pa_time_event *time_event;
- uint32_t adjust_time;
-
- PA_LLIST_HEAD(struct output, outputs);
+ pa_usec_t adjust_time;
+
+ pa_bool_t automatic;
+ pa_bool_t auto_desc;
+
+ pa_hook_slot *sink_put_slot, *sink_unlink_slot, *sink_state_changed_slot;
+
+ pa_resample_method_t resample_method;
+
+ pa_usec_t block_usec;
+
+ pa_idxset* outputs; /* managed in main context */
+
+ struct {
+ PA_LLIST_HEAD(struct output, active_outputs); /* managed in IO thread context */
+ pa_atomic_t running; /* we cache that value here, so that every thread can query it cheaply */
+ pa_usec_t timestamp;
+ pa_bool_t in_null_mode;
+ pa_smoother *smoother;
+ uint64_t counter;
+ } thread_info;
};
-static void output_free(struct output *o);
-static void clear_up(struct userdata *u);
+enum {
+ SINK_MESSAGE_ADD_OUTPUT = PA_SINK_MESSAGE_MAX,
+ SINK_MESSAGE_REMOVE_OUTPUT,
+ SINK_MESSAGE_NEED,
+ SINK_MESSAGE_UPDATE_LATENCY,
+ SINK_MESSAGE_UPDATE_MAX_REQUEST,
+ SINK_MESSAGE_UPDATE_REQUESTED_LATENCY
+};
-static void update_usage(struct userdata *u) {
- pa_module_set_used(u->module, u->sink ? pa_sink_used_by(u->sink) : 0);
-}
+enum {
+ SINK_INPUT_MESSAGE_POST = PA_SINK_INPUT_MESSAGE_MAX,
+};
+
+static void output_disable(struct output *o);
+static void output_enable(struct output *o);
+static void output_free(struct output *o);
+static int output_create_sink_input(struct output *o);
static void adjust_rates(struct userdata *u) {
struct output *o;
- pa_usec_t max_sink_latency = 0, min_total_latency = (pa_usec_t) -1, target_latency;
+ pa_usec_t max_sink_latency = 0, min_total_latency = (pa_usec_t) -1, target_latency, avg_total_latency = 0;
uint32_t base_rate;
- assert(u && u->sink);
+ uint32_t idx;
+ unsigned n = 0;
+
+ pa_assert(u);
+ pa_sink_assert_ref(u->sink);
+
+ if (pa_idxset_size(u->outputs) <= 0)
+ return;
+
+ if (!PA_SINK_IS_OPENED(pa_sink_get_state(u->sink)))
+ return;
+
+ PA_IDXSET_FOREACH(o, u->outputs, idx) {
+ pa_usec_t sink_latency;
+
+ if (!o->sink_input || !PA_SINK_IS_OPENED(pa_sink_get_state(o->sink)))
+ continue;
+
+ o->total_latency = pa_sink_input_get_latency(o->sink_input, &sink_latency);
+ o->total_latency += sink_latency;
- for (o = u->outputs; o; o = o->next) {
- uint32_t sink_latency = o->sink_input->sink ? pa_sink_get_latency(o->sink_input->sink) : 0;
-
- o->total_latency = sink_latency + pa_sink_input_get_latency(o->sink_input);
-
if (sink_latency > max_sink_latency)
max_sink_latency = sink_latency;
- if (o->total_latency < min_total_latency)
+ if (min_total_latency == (pa_usec_t) -1 || o->total_latency < min_total_latency)
min_total_latency = o->total_latency;
+
+ avg_total_latency += o->total_latency;
+ n++;
+
+ pa_log_debug("[%s] total=%0.2fms sink=%0.2fms ", o->sink->name, (double) o->total_latency / PA_USEC_PER_MSEC, (double) sink_latency / PA_USEC_PER_MSEC);
+
+ if (o->total_latency > 10*PA_USEC_PER_SEC)
+ pa_log_warn("[%s] Total latency of output is very high (%0.2fms), most likely the audio timing in one of your drivers is broken.", o->sink->name, (double) o->total_latency / PA_USEC_PER_MSEC);
}
- assert(min_total_latency != (pa_usec_t) -1);
+ if (min_total_latency == (pa_usec_t) -1)
+ return;
+
+ avg_total_latency /= n;
target_latency = max_sink_latency > min_total_latency ? max_sink_latency : min_total_latency;
-
- pa_log_info("[%s] target latency is %0.0f usec.", u->sink->name, (float) target_latency);
+
+ pa_log_info("[%s] avg total latency is %0.2f msec.", u->sink->name, (double) avg_total_latency / PA_USEC_PER_MSEC);
+ pa_log_info("[%s] target latency is %0.2f msec.", u->sink->name, (double) target_latency / PA_USEC_PER_MSEC);
base_rate = u->sink->sample_spec.rate;
- for (o = u->outputs; o; o = o->next) {
- uint32_t r = base_rate;
-
+ PA_IDXSET_FOREACH(o, u->outputs, idx) {
+ uint32_t r = base_rate;
+
+ if (!o->sink_input || !PA_SINK_IS_OPENED(pa_sink_get_state(o->sink)))
+ continue;
+
if (o->total_latency < target_latency)
- r -= (uint32_t) (((((double) target_latency - o->total_latency))/u->adjust_time)*r/ 1000000);
+ r -= (uint32_t) ((((double) (target_latency - o->total_latency))/(double)u->adjust_time)*(double)r);
else if (o->total_latency > target_latency)
- r += (uint32_t) (((((double) o->total_latency - target_latency))/u->adjust_time)*r/ 1000000);
+ r += (uint32_t) ((((double) (o->total_latency - target_latency))/(double)u->adjust_time)*(double)r);
- if (r < (uint32_t) (base_rate*0.9) || r > (uint32_t) (base_rate*1.1))
- pa_log_warn("[%s] sample rates too different, not adjusting (%u vs. %u).", o->sink_input->name, base_rate, r);
- else {
- pa_log_info("[%s] new rate is %u Hz; ratio is %0.3f; latency is %0.0f usec.", o->sink_input->name, r, (double) r / base_rate, (float) o->total_latency);
+ if (r < (uint32_t) (base_rate*0.9) || r > (uint32_t) (base_rate*1.1)) {
+ pa_log_warn("[%s] sample rates too different, not adjusting (%u vs. %u).", o->sink_input->sink->name, base_rate, r);
+ pa_sink_input_set_rate(o->sink_input, base_rate);
+ } else {
+ pa_log_info("[%s] new rate is %u Hz; ratio is %0.3f; latency is %0.0f usec.", o->sink_input->sink->name, r, (double) r / base_rate, (float) o->total_latency);
pa_sink_input_set_rate(o->sink_input, r);
}
}
+
+ pa_asyncmsgq_send(u->sink->asyncmsgq, PA_MSGOBJECT(u->sink), SINK_MESSAGE_UPDATE_LATENCY, NULL, (int64_t) avg_total_latency, NULL);
}
-static void request_memblock(struct userdata *u) {
- pa_memchunk chunk;
- struct output *o;
- assert(u && u->sink);
+static void time_callback(pa_mainloop_api *a, pa_time_event *e, const struct timeval *t, void *userdata) {
+ struct userdata *u = userdata;
+
+ pa_assert(u);
+ pa_assert(a);
+ pa_assert(u->time_event == e);
- update_usage(u);
-
- if (pa_sink_render(u->sink, RENDER_SIZE, &chunk) < 0)
+ adjust_rates(u);
+
+ pa_core_rttime_restart(u->core, e, pa_rtclock_now() + u->adjust_time);
+}
+
+static void process_render_null(struct userdata *u, pa_usec_t now) {
+ size_t ate = 0;
+ pa_assert(u);
+
+ if (u->thread_info.in_null_mode)
+ u->thread_info.timestamp = now;
+
+ while (u->thread_info.timestamp < now + u->block_usec) {
+ pa_memchunk chunk;
+
+ pa_sink_render(u->sink, u->sink->thread_info.max_request, &chunk);
+ pa_memblock_unref(chunk.memblock);
+
+ u->thread_info.counter += chunk.length;
+
+/* pa_log_debug("Ate %lu bytes.", (unsigned long) chunk.length); */
+ u->thread_info.timestamp += pa_bytes_to_usec(chunk.length, &u->sink->sample_spec);
+
+ ate += chunk.length;
+
+ if (ate >= u->sink->thread_info.max_request)
+ break;
+ }
+
+/* pa_log_debug("Ate in sum %lu bytes (of %lu)", (unsigned long) ate, (unsigned long) nbytes); */
+
+ pa_smoother_put(u->thread_info.smoother, now,
+ pa_bytes_to_usec(u->thread_info.counter, &u->sink->sample_spec) - (u->thread_info.timestamp - now));
+}
+
+static void thread_func(void *userdata) {
+ struct userdata *u = userdata;
+
+ pa_assert(u);
+
+ pa_log_debug("Thread starting up");
+
+ if (u->core->realtime_scheduling)
+ pa_make_realtime(u->core->realtime_priority+1);
+
+ pa_thread_mq_install(&u->thread_mq);
+
+ u->thread_info.timestamp = pa_rtclock_now();
+ u->thread_info.in_null_mode = FALSE;
+
+ for (;;) {
+ int ret;
+
+ if (PA_SINK_IS_OPENED(u->sink->thread_info.state))
+ if (u->sink->thread_info.rewind_requested)
+ pa_sink_process_rewind(u->sink, 0);
+
+ /* If no outputs are connected, render some data and drop it immediately. */
+ if (PA_SINK_IS_OPENED(u->sink->thread_info.state) && !u->thread_info.active_outputs) {
+ pa_usec_t now;
+
+ now = pa_rtclock_now();
+
+ if (!u->thread_info.in_null_mode || u->thread_info.timestamp <= now)
+ process_render_null(u, now);
+
+ pa_rtpoll_set_timer_absolute(u->rtpoll, u->thread_info.timestamp);
+ u->thread_info.in_null_mode = TRUE;
+ } else {
+ pa_rtpoll_set_timer_disabled(u->rtpoll);
+ u->thread_info.in_null_mode = FALSE;
+ }
+
+ /* Hmm, nothing to do. Let's sleep */
+ if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0) {
+ pa_log_info("pa_rtpoll_run() = %i", ret);
+ goto fail;
+ }
+
+ if (ret == 0)
+ goto finish;
+ }
+
+fail:
+ /* If this was no regular exit from the loop we have to continue
+ * processing messages until we received PA_MESSAGE_SHUTDOWN */
+ pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
+ pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
+
+finish:
+ pa_log_debug("Thread shutting down");
+}
+
+/* Called from I/O thread context */
+static void render_memblock(struct userdata *u, struct output *o, size_t length) {
+ pa_assert(u);
+ pa_assert(o);
+
+ /* We are run by the sink thread, on behalf of an output (o). The
+ * output is waiting for us, hence it is safe to access its
+ * mainblockq and asyncmsgq directly. */
+
+ /* If we are not running, we cannot produce any data */
+ if (!pa_atomic_load(&u->thread_info.running))
return;
- for (o = u->outputs; o; o = o->next)
+ /* Maybe there's some data in the requesting output's queue
+ * now? */
+ while (pa_asyncmsgq_process_one(o->inq) > 0)
+ ;
+
+ /* Ok, now let's prepare some data if we really have to */
+ while (!pa_memblockq_is_readable(o->memblockq)) {
+ struct output *j;
+ pa_memchunk chunk;
+
+ /* Render data! */
+ pa_sink_render(u->sink, length, &chunk);
+
+ u->thread_info.counter += chunk.length;
+
+ /* OK, let's send this data to the other threads */
+ PA_LLIST_FOREACH(j, u->thread_info.active_outputs) {
+ if (j == o)
+ continue;
+
+ pa_asyncmsgq_post(j->inq, PA_MSGOBJECT(j->sink_input), SINK_INPUT_MESSAGE_POST, NULL, 0, &chunk, NULL);
+ }
+
+ /* And place it directly into the requesting output's queue */
pa_memblockq_push_align(o->memblockq, &chunk);
+ pa_memblock_unref(chunk.memblock);
+ }
+}
+
+/* Called from I/O thread context */
+static void request_memblock(struct output *o, size_t length) {
+ pa_assert(o);
+ pa_sink_input_assert_ref(o->sink_input);
+ pa_sink_assert_ref(o->userdata->sink);
+
+ /* If another thread already prepared some data we received
+ * the data over the asyncmsgq, hence let's first process
+ * it. */
+ while (pa_asyncmsgq_process_one(o->inq) > 0)
+ ;
+
+ /* Check whether we're now readable */
+ if (pa_memblockq_is_readable(o->memblockq))
+ return;
- pa_memblock_unref(chunk.memblock);
+ /* OK, we need to prepare new data, but only if the sink is actually running */
+ if (pa_atomic_load(&o->userdata->thread_info.running))
+ pa_asyncmsgq_send(o->outq, PA_MSGOBJECT(o->userdata->sink), SINK_MESSAGE_NEED, o, (int64_t) length, NULL);
}
-static void time_callback(pa_mainloop_api*a, pa_time_event* e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) {
- struct userdata *u = userdata;
- struct timeval n;
- assert(u && a && u->time_event == e);
+/* Called from I/O thread context */
+static int sink_input_pop_cb(pa_sink_input *i, size_t nbytes, pa_memchunk *chunk) {
+ struct output *o;
- adjust_rates(u);
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(o = i->userdata);
+
+ /* If necessary, get some new data */
+ request_memblock(o, nbytes);
+
+ /* pa_log("%s q size is %u + %u (%u/%u)", */
+ /* i->sink->name, */
+ /* pa_memblockq_get_nblocks(o->memblockq), */
+ /* pa_memblockq_get_nblocks(i->thread_info.render_memblockq), */
+ /* pa_memblockq_get_maxrewind(o->memblockq), */
+ /* pa_memblockq_get_maxrewind(i->thread_info.render_memblockq)); */
+
+ if (pa_memblockq_peek(o->memblockq, chunk) < 0)
+ return -1;
+
+ pa_memblockq_drop(o->memblockq, chunk->length);
- pa_gettimeofday(&n);
- n.tv_sec += u->adjust_time;
- u->sink->core->mainloop->time_restart(e, &n);
+ return 0;
}
-static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
- struct output *o = i->userdata;
- assert(i && o && o->sink_input && chunk);
+/* Called from I/O thread context */
+static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes) {
+ struct output *o;
- if (pa_memblockq_peek(o->memblockq, chunk) >= 0)
- return 0;
-
- /* Try harder */
- request_memblock(o->userdata);
-
- return pa_memblockq_peek(o->memblockq, chunk);
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(o = i->userdata);
+
+ pa_memblockq_rewind(o->memblockq, nbytes);
+}
+
+/* Called from I/O thread context */
+static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes) {
+ struct output *o;
+
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(o = i->userdata);
+
+ pa_memblockq_set_maxrewind(o->memblockq, nbytes);
+}
+
+/* Called from I/O thread context */
+static void sink_input_update_max_request_cb(pa_sink_input *i, size_t nbytes) {
+ struct output *o;
+
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(o = i->userdata);
+
+ if (pa_atomic_load(&o->max_request) == (int) nbytes)
+ return;
+
+ pa_atomic_store(&o->max_request, (int) nbytes);
+ pa_asyncmsgq_post(o->outq, PA_MSGOBJECT(o->userdata->sink), SINK_MESSAGE_UPDATE_MAX_REQUEST, NULL, 0, NULL, NULL);
+}
+
+/* Called from thread context */
+static void sink_input_update_sink_requested_latency_cb(pa_sink_input *i) {
+ struct output *o;
+ pa_usec_t c;
+
+ pa_assert(i);
+
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(o = i->userdata);
+
+ c = pa_sink_get_requested_latency_within_thread(i->sink);
+
+ if (c == (pa_usec_t) -1)
+ c = i->sink->thread_info.max_latency;
+
+ if (pa_atomic_load(&o->requested_latency) == (int) c)
+ return;
+
+ pa_atomic_store(&o->requested_latency, (int) c);
+ pa_asyncmsgq_post(o->outq, PA_MSGOBJECT(o->userdata->sink), SINK_MESSAGE_UPDATE_REQUESTED_LATENCY, NULL, 0, NULL, NULL);
}
-static void sink_input_drop_cb(pa_sink_input *i, const pa_memchunk *chunk, size_t length) {
- struct output *o = i->userdata;
- assert(i && o && o->sink_input && chunk && length);
+/* Called from I/O thread context */
+static void sink_input_attach_cb(pa_sink_input *i) {
+ struct output *o;
+ pa_usec_t c;
+
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(o = i->userdata);
- pa_memblockq_drop(o->memblockq, chunk, length);
- o->counter += length;
+ /* Set up the queue from the sink thread to us */
+ pa_assert(!o->inq_rtpoll_item_read && !o->outq_rtpoll_item_write);
+
+ o->inq_rtpoll_item_read = pa_rtpoll_item_new_asyncmsgq_read(
+ i->sink->thread_info.rtpoll,
+ PA_RTPOLL_LATE, /* This one is not that important, since we check for data in _peek() anyway. */
+ o->inq);
+
+ o->outq_rtpoll_item_write = pa_rtpoll_item_new_asyncmsgq_write(
+ i->sink->thread_info.rtpoll,
+ PA_RTPOLL_EARLY,
+ o->outq);
+
+ pa_sink_input_request_rewind(i, 0, FALSE, TRUE, TRUE);
+
+ pa_atomic_store(&o->max_request, (int) pa_sink_input_get_max_request(i));
+
+ c = pa_sink_get_requested_latency_within_thread(i->sink);
+ pa_atomic_store(&o->requested_latency, (int) (c == (pa_usec_t) -1 ? 0 : c));
+
+ pa_asyncmsgq_post(o->outq, PA_MSGOBJECT(o->userdata->sink), SINK_MESSAGE_UPDATE_MAX_REQUEST, NULL, 0, NULL, NULL);
+ pa_asyncmsgq_post(o->outq, PA_MSGOBJECT(o->userdata->sink), SINK_MESSAGE_UPDATE_REQUESTED_LATENCY, NULL, 0, NULL, NULL);
}
+/* Called from I/O thread context */
+static void sink_input_detach_cb(pa_sink_input *i) {
+ struct output *o;
+
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(o = i->userdata);
+
+ if (o->inq_rtpoll_item_read) {
+ pa_rtpoll_item_free(o->inq_rtpoll_item_read);
+ o->inq_rtpoll_item_read = NULL;
+ }
+
+ if (o->outq_rtpoll_item_write) {
+ pa_rtpoll_item_free(o->outq_rtpoll_item_write);
+ o->outq_rtpoll_item_write = NULL;
+ }
+}
+
+/* Called from main context */
static void sink_input_kill_cb(pa_sink_input *i) {
- struct output *o = i->userdata;
- assert(i && o && o->sink_input);
- pa_module_unload_request(o->userdata->module);
- clear_up(o->userdata);
+ struct output *o;
+
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(o = i->userdata);
+
+ pa_module_unload_request(o->userdata->module, TRUE);
+ output_free(o);
+}
+
+/* Called from thread context */
+static int sink_input_process_msg(pa_msgobject *obj, int code, void *data, int64_t offset, pa_memchunk *chunk) {
+ struct output *o = PA_SINK_INPUT(obj)->userdata;
+
+ switch (code) {
+
+ case PA_SINK_INPUT_MESSAGE_GET_LATENCY: {
+ pa_usec_t *r = data;
+
+ *r = pa_bytes_to_usec(pa_memblockq_get_length(o->memblockq), &o->sink_input->sample_spec);
+
+ /* Fall through, the default handler will add in the extra
+ * latency added by the resampler */
+ break;
+ }
+
+ case SINK_INPUT_MESSAGE_POST:
+
+ if (PA_SINK_IS_OPENED(o->sink_input->sink->thread_info.state))
+ pa_memblockq_push_align(o->memblockq, chunk);
+ else
+ pa_memblockq_flush_write(o->memblockq);
+
+ return 0;
+ }
+
+ return pa_sink_input_process_msg(obj, code, data, offset, chunk);
}
-static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i) {
- struct output *o = i->userdata;
- assert(i && o && o->sink_input);
-
- return pa_bytes_to_usec(pa_memblockq_get_length(o->memblockq), &i->sample_spec);
+/* Called from main context */
+static void suspend(struct userdata *u) {
+ struct output *o;
+ uint32_t idx;
+
+ pa_assert(u);
+
+ /* Let's suspend by unlinking all streams */
+ PA_IDXSET_FOREACH(o, u->outputs, idx)
+ output_disable(o);
+
+ pa_log_info("Device suspended...");
}
-static pa_usec_t sink_get_latency_cb(pa_sink *s) {
- struct userdata *u = s->userdata;
- assert(s && u && u->sink && u->master);
+/* Called from main context */
+static void unsuspend(struct userdata *u) {
+ struct output *o;
+ uint32_t idx;
- return
- pa_sink_input_get_latency(u->master->sink_input) +
- pa_sink_get_latency(u->master->sink_input->sink);
+ pa_assert(u);
+
+ /* Let's resume */
+ PA_IDXSET_FOREACH(o, u->outputs, idx)
+ output_enable(o);
+
+ pa_log_info("Resumed successfully...");
}
-static void sink_notify(pa_sink *s) {
+/* Called from main context */
+static int sink_set_state(pa_sink *sink, pa_sink_state_t state) {
struct userdata *u;
+
+ pa_sink_assert_ref(sink);
+ pa_assert_se(u = sink->userdata);
+
+ /* Please note that in contrast to the ALSA modules we call
+ * suspend/unsuspend from main context here! */
+
+ switch (state) {
+ case PA_SINK_SUSPENDED:
+ pa_assert(PA_SINK_IS_OPENED(pa_sink_get_state(u->sink)));
+
+ suspend(u);
+ break;
+
+ case PA_SINK_IDLE:
+ case PA_SINK_RUNNING:
+
+ if (pa_sink_get_state(u->sink) == PA_SINK_SUSPENDED)
+ unsuspend(u);
+
+ break;
+
+ case PA_SINK_UNLINKED:
+ case PA_SINK_INIT:
+ case PA_SINK_INVALID_STATE:
+ ;
+ }
+
+ return 0;
+}
+
+/* Called from IO context */
+static void update_max_request(struct userdata *u) {
+ size_t max_request = 0;
+ struct output *o;
+
+ pa_assert(u);
+ pa_sink_assert_io_context(u->sink);
+
+ /* Collects the max_request values of all streams and sets the
+ * largest one locally */
+
+ PA_LLIST_FOREACH(o, u->thread_info.active_outputs) {
+ size_t mr = (size_t) pa_atomic_load(&o->max_request);
+
+ if (mr > max_request)
+ max_request = mr;
+ }
+
+ if (max_request <= 0)
+ max_request = pa_usec_to_bytes(u->block_usec, &u->sink->sample_spec);
+
+ pa_sink_set_max_request_within_thread(u->sink, max_request);
+}
+
+/* Called from IO context */
+static void update_fixed_latency(struct userdata *u) {
+ pa_usec_t fixed_latency = 0;
struct output *o;
-
- assert(s);
- u = s->userdata;
- assert(u);
-
- for (o = u->outputs; o; o = o->next)
- pa_sink_notify(o->sink_input->sink);
-}
-
-static struct output *output_new(struct userdata *u, pa_sink *sink, int resample_method) {
- struct output *o = NULL;
- char t[256];
+
+ pa_assert(u);
+ pa_sink_assert_io_context(u->sink);
+
+ /* Collects the requested_latency values of all streams and sets
+ * the largest one as fixed_latency locally */
+
+ PA_LLIST_FOREACH(o, u->thread_info.active_outputs) {
+ pa_usec_t rl = (size_t) pa_atomic_load(&o->requested_latency);
+
+ if (rl > fixed_latency)
+ fixed_latency = rl;
+ }
+
+ if (fixed_latency <= 0)
+ fixed_latency = u->block_usec;
+
+ pa_sink_set_fixed_latency_within_thread(u->sink, fixed_latency);
+}
+
+/* Called from thread context of the io thread */
+static void output_add_within_thread(struct output *o) {
+ pa_assert(o);
+ pa_sink_assert_io_context(o->sink);
+
+ PA_LLIST_PREPEND(struct output, o->userdata->thread_info.active_outputs, o);
+
+ pa_assert(!o->outq_rtpoll_item_read && !o->inq_rtpoll_item_write);
+
+ o->outq_rtpoll_item_read = pa_rtpoll_item_new_asyncmsgq_read(
+ o->userdata->rtpoll,
+ PA_RTPOLL_EARLY-1, /* This item is very important */
+ o->outq);
+ o->inq_rtpoll_item_write = pa_rtpoll_item_new_asyncmsgq_write(
+ o->userdata->rtpoll,
+ PA_RTPOLL_EARLY,
+ o->inq);
+}
+
+/* Called from thread context of the io thread */
+static void output_remove_within_thread(struct output *o) {
+ pa_assert(o);
+ pa_sink_assert_io_context(o->sink);
+
+ PA_LLIST_REMOVE(struct output, o->userdata->thread_info.active_outputs, o);
+
+ if (o->outq_rtpoll_item_read) {
+ pa_rtpoll_item_free(o->outq_rtpoll_item_read);
+ o->outq_rtpoll_item_read = NULL;
+ }
+
+ if (o->inq_rtpoll_item_write) {
+ pa_rtpoll_item_free(o->inq_rtpoll_item_write);
+ o->inq_rtpoll_item_write = NULL;
+ }
+}
+
+/* Called from thread context of the io thread */
+static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
+ struct userdata *u = PA_SINK(o)->userdata;
+
+ switch (code) {
+
+ case PA_SINK_MESSAGE_SET_STATE:
+ pa_atomic_store(&u->thread_info.running, PA_PTR_TO_UINT(data) == PA_SINK_RUNNING);
+
+ if (PA_PTR_TO_UINT(data) == PA_SINK_SUSPENDED)
+ pa_smoother_pause(u->thread_info.smoother, pa_rtclock_now());
+ else
+ pa_smoother_resume(u->thread_info.smoother, pa_rtclock_now(), TRUE);
+
+ break;
+
+ case PA_SINK_MESSAGE_GET_LATENCY: {
+ pa_usec_t x, y, c, *delay = data;
+
+ x = pa_rtclock_now();
+ y = pa_smoother_get(u->thread_info.smoother, x);
+
+ c = pa_bytes_to_usec(u->thread_info.counter, &u->sink->sample_spec);
+
+ if (y < c)
+ *delay = c - y;
+ else
+ *delay = 0;
+
+ return 0;
+ }
+
+ case SINK_MESSAGE_ADD_OUTPUT:
+ output_add_within_thread(data);
+ update_max_request(u);
+ update_fixed_latency(u);
+ return 0;
+
+ case SINK_MESSAGE_REMOVE_OUTPUT:
+ output_remove_within_thread(data);
+ update_max_request(u);
+ update_fixed_latency(u);
+ return 0;
+
+ case SINK_MESSAGE_NEED:
+ render_memblock(u, (struct output*) data, (size_t) offset);
+ return 0;
+
+ case SINK_MESSAGE_UPDATE_LATENCY: {
+ pa_usec_t x, y, latency = (pa_usec_t) offset;
+
+ x = pa_rtclock_now();
+ y = pa_bytes_to_usec(u->thread_info.counter, &u->sink->sample_spec);
+
+ if (y > latency)
+ y -= latency;
+ else
+ y = 0;
+
+ pa_smoother_put(u->thread_info.smoother, x, y);
+ return 0;
+ }
+
+ case SINK_MESSAGE_UPDATE_MAX_REQUEST:
+ update_max_request(u);
+ break;
+
+ case SINK_MESSAGE_UPDATE_REQUESTED_LATENCY:
+ update_fixed_latency(u);
+ break;
+}
+
+ return pa_sink_process_msg(o, code, data, offset, chunk);
+}
+
+static void update_description(struct userdata *u) {
+ pa_bool_t first = TRUE;
+ char *t;
+ struct output *o;
+ uint32_t idx;
+
+ pa_assert(u);
+
+ if (!u->auto_desc)
+ return;
+
+ if (pa_idxset_isempty(u->outputs)) {
+ pa_sink_set_description(u->sink, "Simultaneous output");
+ return;
+ }
+
+ t = pa_xstrdup("Simultaneous output to");
+
+ PA_IDXSET_FOREACH(o, u->outputs, idx) {
+ char *e;
+
+ if (first) {
+ e = pa_sprintf_malloc("%s %s", t, pa_strnull(pa_proplist_gets(o->sink->proplist, PA_PROP_DEVICE_DESCRIPTION)));
+ first = FALSE;
+ } else
+ e = pa_sprintf_malloc("%s, %s", t, pa_strnull(pa_proplist_gets(o->sink->proplist, PA_PROP_DEVICE_DESCRIPTION)));
+
+ pa_xfree(t);
+ t = e;
+ }
+
+ pa_sink_set_description(u->sink, t);
+ pa_xfree(t);
+}
+
+static int output_create_sink_input(struct output *o) {
pa_sink_input_new_data data;
-
- assert(u && sink && u->sink);
-
- o = pa_xmalloc(sizeof(struct output));
+
+ pa_assert(o);
+
+ if (o->sink_input)
+ return 0;
+
+ pa_sink_input_new_data_init(&data);
+ data.sink = o->sink;
+ data.driver = __FILE__;
+ pa_proplist_setf(data.proplist, PA_PROP_MEDIA_NAME, "Simultaneous output on %s", pa_strnull(pa_proplist_gets(o->sink->proplist, PA_PROP_DEVICE_DESCRIPTION)));
+ pa_proplist_sets(data.proplist, PA_PROP_MEDIA_ROLE, "filter");
+ pa_sink_input_new_data_set_sample_spec(&data, &o->userdata->sink->sample_spec);
+ pa_sink_input_new_data_set_channel_map(&data, &o->userdata->sink->channel_map);
+ data.module = o->userdata->module;
+ data.resample_method = o->userdata->resample_method;
+ data.flags = PA_SINK_INPUT_VARIABLE_RATE|PA_SINK_INPUT_DONT_MOVE|PA_SINK_INPUT_NO_CREATE_ON_SUSPEND;
+
+ pa_sink_input_new(&o->sink_input, o->userdata->core, &data);
+
+ pa_sink_input_new_data_done(&data);
+
+ if (!o->sink_input)
+ return -1;
+
+ o->sink_input->parent.process_msg = sink_input_process_msg;
+ o->sink_input->pop = sink_input_pop_cb;
+ o->sink_input->process_rewind = sink_input_process_rewind_cb;
+ o->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
+ o->sink_input->update_max_request = sink_input_update_max_request_cb;
+ o->sink_input->update_sink_requested_latency = sink_input_update_sink_requested_latency_cb;
+ o->sink_input->attach = sink_input_attach_cb;
+ o->sink_input->detach = sink_input_detach_cb;
+ o->sink_input->kill = sink_input_kill_cb;
+ o->sink_input->userdata = o;
+
+ pa_sink_input_set_requested_latency(o->sink_input, BLOCK_USEC);
+
+ return 0;
+}
+
+/* Called from main context */
+static struct output *output_new(struct userdata *u, pa_sink *sink) {
+ struct output *o;
+
+ pa_assert(u);
+ pa_assert(sink);
+ pa_assert(u->sink);
+
+ o = pa_xnew0(struct output, 1);
o->userdata = u;
-
- o->counter = 0;
+ o->inq = pa_asyncmsgq_new(0);
+ o->outq = pa_asyncmsgq_new(0);
+ o->sink = sink;
o->memblockq = pa_memblockq_new(
0,
MEMBLOCKQ_MAXLENGTH,
pa_frame_size(&u->sink->sample_spec),
1,
0,
+ 0,
NULL);
- snprintf(t, sizeof(t), "Output stream #%u of sink %s", u->n_outputs+1, u->sink->name);
-
- pa_sink_input_new_data_init(&data);
- data.sink = sink;
- data.driver = __FILE__;
- data.name = t;
- pa_sink_input_new_data_set_sample_spec(&data, &u->sink->sample_spec);
- pa_sink_input_new_data_set_channel_map(&data, &u->sink->channel_map);
- data.module = u->module;
-
- if (!(o->sink_input = pa_sink_input_new(u->core, &data, PA_SINK_INPUT_VARIABLE_RATE)))
- goto fail;
+ pa_assert_se(pa_idxset_put(u->outputs, o, NULL) == 0);
+ update_description(u);
- o->sink_input->get_latency = sink_input_get_latency_cb;
- o->sink_input->peek = sink_input_peek_cb;
- o->sink_input->drop = sink_input_drop_cb;
- o->sink_input->kill = sink_input_kill_cb;
- o->sink_input->userdata = o;
-
- PA_LLIST_PREPEND(struct output, u->outputs, o);
- u->n_outputs++;
return o;
+}
-fail:
+/* Called from main context */
+static void output_free(struct output *o) {
+ pa_assert(o);
- if (o) {
- if (o->sink_input) {
- pa_sink_input_disconnect(o->sink_input);
- pa_sink_input_unref(o->sink_input);
- }
+ output_disable(o);
+
+ pa_assert_se(pa_idxset_remove_by_data(o->userdata->outputs, o, NULL));
+ update_description(o->userdata);
+
+ if (o->inq_rtpoll_item_read)
+ pa_rtpoll_item_free(o->inq_rtpoll_item_read);
+ if (o->inq_rtpoll_item_write)
+ pa_rtpoll_item_free(o->inq_rtpoll_item_write);
+
+ if (o->outq_rtpoll_item_read)
+ pa_rtpoll_item_free(o->outq_rtpoll_item_read);
+ if (o->outq_rtpoll_item_write)
+ pa_rtpoll_item_free(o->outq_rtpoll_item_write);
+
+ if (o->inq)
+ pa_asyncmsgq_unref(o->inq);
+
+ if (o->outq)
+ pa_asyncmsgq_unref(o->outq);
+
+ if (o->memblockq)
+ pa_memblockq_free(o->memblockq);
+
+ pa_xfree(o);
+}
+
+/* Called from main context */
+static void output_enable(struct output *o) {
+ pa_assert(o);
+
+ if (o->sink_input)
+ return;
+
+ /* This might cause the sink to be resumed. The state change hook
+ * of the sink might hence be called from here, which might then
+ * cause us to be called in a loop. Make sure that state changes
+ * for this output don't cause this loop by setting a flag here */
+ o->ignore_state_change = TRUE;
+
+ if (output_create_sink_input(o) >= 0) {
+
+ if (pa_sink_get_state(o->sink) != PA_SINK_INIT) {
- if (o->memblockq)
- pa_memblockq_free(o->memblockq);
-
- pa_xfree(o);
+ /* First we register the output. That means that the sink
+ * will start to pass data to this output. */
+ pa_asyncmsgq_send(o->userdata->sink->asyncmsgq, PA_MSGOBJECT(o->userdata->sink), SINK_MESSAGE_ADD_OUTPUT, o, 0, NULL);
+
+ /* Then we enable the sink input. That means that the sink
+ * is now asked for new data. */
+ pa_sink_input_put(o->sink_input);
+
+ } else
+ /* Hmm the sink is not yet started, do things right here */
+ output_add_within_thread(o);
}
- return NULL;
+ o->ignore_state_change = FALSE;
}
-static void output_free(struct output *o) {
- assert(o);
- PA_LLIST_REMOVE(struct output, o->userdata->outputs, o);
- o->userdata->n_outputs--;
- pa_memblockq_free(o->memblockq);
- pa_sink_input_disconnect(o->sink_input);
+/* Called from main context */
+static void output_disable(struct output *o) {
+ pa_assert(o);
+
+ if (!o->sink_input)
+ return;
+
+ /* First we disable the sink input. That means that the sink is
+ * not asked for new data anymore */
+ pa_sink_input_unlink(o->sink_input);
+
+ /* Then we unregister the output. That means that the sink doesn't
+ * pass any further data to this output */
+ pa_asyncmsgq_send(o->userdata->sink->asyncmsgq, PA_MSGOBJECT(o->userdata->sink), SINK_MESSAGE_REMOVE_OUTPUT, o, 0, NULL);
+
+ /* Now dellocate the stream */
pa_sink_input_unref(o->sink_input);
- pa_xfree(o);
+ o->sink_input = NULL;
+
+ /* Finally, drop all queued data */
+ pa_memblockq_flush_write(o->memblockq);
+ pa_asyncmsgq_flush(o->inq, FALSE);
+ pa_asyncmsgq_flush(o->outq, FALSE);
+}
+
+/* Called from main context */
+static void output_verify(struct output *o) {
+ pa_assert(o);
+
+ if (PA_SINK_IS_OPENED(pa_sink_get_state(o->userdata->sink)))
+ output_enable(o);
+ else
+ output_disable(o);
+}
+
+/* Called from main context */
+static pa_bool_t is_suitable_sink(struct userdata *u, pa_sink *s) {
+ const char *t;
+
+ pa_sink_assert_ref(s);
+
+ if (s == u->sink)
+ return FALSE;
+
+ if (!(s->flags & PA_SINK_HARDWARE))
+ return FALSE;
+
+ if (!(s->flags & PA_SINK_LATENCY))
+ return FALSE;
+
+ if ((t = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_CLASS)))
+ if (!pa_streq(t, "sound"))
+ return FALSE;
+
+ return TRUE;
}
-static void clear_up(struct userdata *u) {
+/* Called from main context */
+static pa_hook_result_t sink_put_hook_cb(pa_core *c, pa_sink *s, struct userdata* u) {
struct output *o;
- assert(u);
-
- if (u->time_event) {
- u->core->mainloop->time_free(u->time_event);
- u->time_event = NULL;
- }
-
- while ((o = u->outputs))
- output_free(o);
-
- u->master = NULL;
-
- if (u->sink) {
- pa_sink_disconnect(u->sink);
- pa_sink_unref(u->sink);
- u->sink = NULL;
+
+ pa_core_assert_ref(c);
+ pa_sink_assert_ref(s);
+ pa_assert(u);
+ pa_assert(u->automatic);
+
+ if (!is_suitable_sink(u, s))
+ return PA_HOOK_OK;
+
+ pa_log_info("Configuring new sink: %s", s->name);
+ if (!(o = output_new(u, s))) {
+ pa_log("Failed to create sink input on sink '%s'.", s->name);
+ return PA_HOOK_OK;
}
+
+ output_verify(o);
+
+ return PA_HOOK_OK;
+}
+
+/* Called from main context */
+static struct output* find_output(struct userdata *u, pa_sink *s) {
+ struct output *o;
+ uint32_t idx;
+
+ pa_assert(u);
+ pa_assert(s);
+
+ if (u->sink == s)
+ return NULL;
+
+ PA_IDXSET_FOREACH(o, u->outputs, idx)
+ if (o->sink == s)
+ return o;
+
+ return NULL;
+}
+
+/* Called from main context */
+static pa_hook_result_t sink_unlink_hook_cb(pa_core *c, pa_sink *s, struct userdata* u) {
+ struct output *o;
+
+ pa_assert(c);
+ pa_sink_assert_ref(s);
+ pa_assert(u);
+
+ if (!(o = find_output(u, s)))
+ return PA_HOOK_OK;
+
+ pa_log_info("Unconfiguring sink: %s", s->name);
+ output_free(o);
+
+ return PA_HOOK_OK;
+}
+
+/* Called from main context */
+static pa_hook_result_t sink_state_changed_hook_cb(pa_core *c, pa_sink *s, struct userdata* u) {
+ struct output *o;
+
+ if (!(o = find_output(u, s)))
+ return PA_HOOK_OK;
+
+ /* This state change might be triggered because we are creating a
+ * stream here, in that case we don't want to create it a second
+ * time here and enter a loop */
+ if (o->ignore_state_change)
+ return PA_HOOK_OK;
+
+ output_verify(o);
+
+ return PA_HOOK_OK;
}
-int pa__init(pa_core *c, pa_module*m) {
+int pa__init(pa_module*m) {
struct userdata *u;
pa_modargs *ma = NULL;
- const char *master_name, *slaves, *rm;
- pa_sink *master_sink;
- char *n = NULL;
- const char*split_state;
- struct timeval tv;
- int resample_method = -1;
+ const char *slaves, *rm;
+ int resample_method = PA_RESAMPLER_TRIVIAL;
pa_sample_spec ss;
pa_channel_map map;
-
- assert(c && m);
+ struct output *o;
+ uint32_t idx;
+ pa_sink_new_data data;
+ uint32_t adjust_time_sec;
+
+ pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("failed to parse module arguments");
goto fail;
}
}
-
- u = pa_xnew(struct userdata, 1);
- m->userdata = u;
- u->sink = NULL;
- u->n_outputs = 0;
- u->master = NULL;
+
+ m->userdata = u = pa_xnew0(struct userdata, 1);
+ u->core = m->core;
u->module = m;
- u->core = c;
- u->time_event = NULL;
- u->adjust_time = DEFAULT_ADJUST_TIME;
- PA_LLIST_HEAD_INIT(struct output, u->outputs);
+ u->rtpoll = pa_rtpoll_new();
+ pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
+ u->resample_method = resample_method;
+ u->outputs = pa_idxset_new(NULL, NULL);
+ u->thread_info.smoother = pa_smoother_new(
+ PA_USEC_PER_SEC,
+ PA_USEC_PER_SEC*2,
+ TRUE,
+ TRUE,
+ 10,
+ 0,
+ FALSE);
- if (pa_modargs_get_value_u32(ma, "adjust_time", &u->adjust_time) < 0) {
- pa_log("failed to parse adjust_time value");
- goto fail;
- }
-
- if (!(master_name = pa_modargs_get_value(ma, "master", NULL)) || !(slaves = pa_modargs_get_value(ma, "slaves", NULL))) {
- pa_log("no master or slave sinks specified");
+ 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 (!(master_sink = pa_namereg_get(c, master_name, PA_NAMEREG_SINK, 1))) {
- pa_log("invalid master sink '%s'", master_name);
- 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;
+
+ slaves = pa_modargs_get_value(ma, "slaves", NULL);
+ u->automatic = !slaves;
+
+ ss = m->core->default_sample_spec;
+ map = m->core->default_channel_map;
+
+ /* Check the specified slave sinks for sample_spec and channel_map to use for the combined sink */
+ if (!u->automatic) {
+ const char*split_state = NULL;
+ char *n = NULL;
+ pa_sample_spec slaves_spec;
+ pa_channel_map slaves_map;
+ pa_bool_t is_first_slave = TRUE;
+
+ pa_sample_spec_init(&slaves_spec);
+
+ while ((n = pa_split(slaves, ",", &split_state))) {
+ pa_sink *slave_sink;
+
+ if (!(slave_sink = pa_namereg_get(m->core, n, PA_NAMEREG_SINK))) {
+ pa_log("Invalid slave sink '%s'", n);
+ pa_xfree(n);
+ goto fail;
+ }
+
+ pa_xfree(n);
+
+ if (is_first_slave) {
+ slaves_spec = slave_sink->sample_spec;
+ slaves_map = slave_sink->channel_map;
+ is_first_slave = FALSE;
+ } else {
+ if (slaves_spec.format != slave_sink->sample_spec.format)
+ slaves_spec.format = PA_SAMPLE_INVALID;
+
+ if (slaves_spec.rate < slave_sink->sample_spec.rate)
+ slaves_spec.rate = slave_sink->sample_spec.rate;
+
+ if (!pa_channel_map_equal(&slaves_map, &slave_sink->channel_map))
+ slaves_spec.channels = 0;
+ }
+ }
+
+ if (!is_first_slave) {
+ if (slaves_spec.format != PA_SAMPLE_INVALID)
+ ss.format = slaves_spec.format;
+
+ ss.rate = slaves_spec.rate;
+
+ if (slaves_spec.channels > 0) {
+ map = slaves_map;
+ ss.channels = slaves_map.channels;
+ }
+ }
}
- ss = master_sink->sample_spec;
- if ((pa_modargs_get_sample_spec(ma, &ss) < 0)) {
- pa_log("invalid sample specification.");
+ if ((pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0)) {
+ pa_log("Invalid sample specification.");
goto fail;
}
- if (ss.channels == master_sink->sample_spec.channels)
- map = master_sink->channel_map;
- else
- pa_channel_map_init_auto(&map, ss.channels, PA_CHANNEL_MAP_DEFAULT);
-
- if ((pa_modargs_get_channel_map(ma, &map) < 0)) {
- pa_log("invalid channel map.");
+ pa_sink_new_data_init(&data);
+ data.namereg_fail = FALSE;
+ 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_CLASS, "filter");
+
+ if (slaves)
+ pa_proplist_sets(data.proplist, "combine.slaves", slaves);
+
+ 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;
}
- if (ss.channels != map.channels) {
- pa_log("channel map and sample specification don't match.");
- goto fail;
+ /* Check proplist for a description & fill in a default value if not */
+ u->auto_desc = FALSE;
+ if (NULL == pa_proplist_gets(data.proplist, PA_PROP_DEVICE_DESCRIPTION)) {
+ u->auto_desc = TRUE;
+ pa_proplist_sets(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Simultaneous Output");
}
-
- if (!(u->sink = pa_sink_new(c, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, &map))) {
- pa_log("failed to create sink");
+
+ 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;
}
- pa_sink_set_owner(u->sink, m);
- pa_sink_set_description(u->sink, "Combined Sink");
- u->sink->get_latency = sink_get_latency_cb;
- u->sink->notify = sink_notify;
+ u->sink->parent.process_msg = sink_process_msg;
+ u->sink->set_state = sink_set_state;
u->sink->userdata = u;
-
- if (!(u->master = output_new(u, master_sink, resample_method))) {
- pa_log("failed to create master sink input on sink '%s'.", u->sink->name);
- goto fail;
- }
-
- split_state = NULL;
- while ((n = pa_split(slaves, ",", &split_state))) {
- pa_sink *slave_sink;
-
- if (!(slave_sink = pa_namereg_get(c, n, PA_NAMEREG_SINK, 1))) {
- pa_log("invalid slave sink '%s'", n);
- goto fail;
+
+ pa_sink_set_rtpoll(u->sink, u->rtpoll);
+ pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
+
+ u->block_usec = BLOCK_USEC;
+ pa_sink_set_max_request(u->sink, pa_usec_to_bytes(u->block_usec, &u->sink->sample_spec));
+
+ if (!u->automatic) {
+ const char*split_state;
+ char *n = NULL;
+ pa_assert(slaves);
+
+ /* The slaves have been specified manually */
+
+ split_state = NULL;
+ while ((n = pa_split(slaves, ",", &split_state))) {
+ pa_sink *slave_sink;
+
+ if (!(slave_sink = pa_namereg_get(m->core, n, PA_NAMEREG_SINK)) || slave_sink == u->sink) {
+ pa_log("Invalid slave sink '%s'", n);
+ pa_xfree(n);
+ goto fail;
+ }
+
+ pa_xfree(n);
+
+ if (!output_new(u, slave_sink)) {
+ pa_log("Failed to create slave sink input on sink '%s'.", slave_sink->name);
+ goto fail;
+ }
}
- pa_xfree(n);
+ if (pa_idxset_size(u->outputs) <= 1)
+ pa_log_warn("No slave sinks specified.");
- if (!output_new(u, slave_sink, resample_method)) {
- pa_log("failed to create slave sink input on sink '%s'.", slave_sink->name);
- goto fail;
+ u->sink_put_slot = NULL;
+
+ } else {
+ pa_sink *s;
+
+ /* We're in automatic mode, we add every sink that matches our needs */
+
+ PA_IDXSET_FOREACH(s, m->core->sinks, idx) {
+
+ if (!is_suitable_sink(u, s))
+ continue;
+
+ if (!output_new(u, s)) {
+ pa_log("Failed to create sink input on sink '%s'.", s->name);
+ goto fail;
+ }
}
+
+ u->sink_put_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PUT], PA_HOOK_LATE, (pa_hook_cb_t) sink_put_hook_cb, u);
}
-
- if (u->n_outputs <= 1)
- pa_log_warn("WARNING: no slave sinks specified.");
-
- if (u->adjust_time > 0) {
- pa_gettimeofday(&tv);
- tv.tv_sec += u->adjust_time;
- u->time_event = c->mainloop->time_new(c->mainloop, &tv, time_callback, u);
+
+ u->sink_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK], PA_HOOK_EARLY, (pa_hook_cb_t) sink_unlink_hook_cb, u);
+ u->sink_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_state_changed_hook_cb, u);
+
+ if (!(u->thread = pa_thread_new(thread_func, u))) {
+ pa_log("Failed to create thread.");
+ goto fail;
}
-
+
+ /* Activate the sink and the sink inputs */
+ pa_sink_put(u->sink);
+
+ PA_IDXSET_FOREACH(o, u->outputs, idx)
+ output_verify(o);
+
+ 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;
+
+ return 0;
fail:
- pa_xfree(n);
-
+
if (ma)
pa_modargs_free(ma);
- pa__done(c, m);
+ pa__done(m);
+
return -1;
}
-void pa__done(pa_core *c, pa_module*m) {
+void pa__done(pa_module*m) {
struct userdata *u;
- assert(c && m);
+ struct output *o;
+
+ pa_assert(m);
if (!(u = m->userdata))
return;
- clear_up(u);
- pa_xfree(u);
-}
+ if (u->sink_put_slot)
+ pa_hook_slot_free(u->sink_put_slot);
+
+ if (u->sink_unlink_slot)
+ pa_hook_slot_free(u->sink_unlink_slot);
+
+ if (u->sink_state_changed_slot)
+ pa_hook_slot_free(u->sink_state_changed_slot);
+
+ if (u->outputs) {
+ while ((o = pa_idxset_first(u->outputs, NULL)))
+ output_free(o);
+ pa_idxset_free(u->outputs, NULL, NULL);
+ }
+
+ if (u->sink)
+ pa_sink_unlink(u->sink);
+
+ if (u->thread) {
+ pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
+ pa_thread_free(u->thread);
+ }
+
+ pa_thread_mq_done(&u->thread_mq);
+
+ if (u->sink)
+ pa_sink_unref(u->sink);
+ if (u->rtpoll)
+ pa_rtpoll_free(u->rtpoll);
+
+ if (u->time_event)
+ u->core->mainloop->time_free(u->time_event);
+
+ if (u->thread_info.smoother)
+ pa_smoother_free(u->thread_info.smoother);
+
+ pa_xfree(u);
+}