-/* $Id$ */
-
/***
This file is part of PulseAudio.
- Copyright 2004-2006 Lennart Poettering
+ 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
#include <pulsecore/rtpoll.h>
#include <pulsecore/rtclock.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> "
"slaves=<slave sinks> "
"adjust_time=<seconds> "
"resample_method=<method> "
"format=<sample format> "
"channels=<number of channels> "
"rate=<sample rate> "
- "channel_map=<channel map>")
+ "channel_map=<channel map>");
#define DEFAULT_SINK_NAME "combined"
-#define MEMBLOCKQ_MAXLENGTH (1024*170)
+
+#define MEMBLOCKQ_MAXLENGTH (1024*1024*16)
#define DEFAULT_ADJUST_TIME 10
+#define REQUEST_LATENCY_USEC (PA_USEC_PER_MSEC * 200)
+
static const char* const valid_modargs[] = {
"sink_name",
- "master",
"slaves",
"adjust_time",
"resample_method",
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, *outq_rtpoll_item;
+ 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;
pa_usec_t total_latency;
+ pa_atomic_t max_request;
+
PA_LLIST_FIELDS(struct output);
};
uint32_t adjust_time;
pa_bool_t automatic;
- size_t block_size;
- pa_hook_slot *sink_new_slot, *sink_unlink_slot, *sink_state_changed_slot;
+ pa_hook_slot *sink_put_slot, *sink_unlink_slot, *sink_state_changed_slot;
pa_resample_method_t resample_method;
- struct timespec adjust_timestamp;
+ struct timeval adjust_timestamp;
+
+ pa_usec_t block_usec;
- struct output *master;
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 */
- struct timespec timestamp;
+ pa_usec_t timestamp;
pa_bool_t in_null_mode;
+ pa_smoother *smoother;
+ uint64_t counter;
} thread_info;
};
enum {
SINK_MESSAGE_ADD_OUTPUT = PA_SINK_MESSAGE_MAX,
SINK_MESSAGE_REMOVE_OUTPUT,
- SINK_MESSAGE_NEED
+ SINK_MESSAGE_NEED,
+ SINK_MESSAGE_UPDATE_LATENCY,
+ SINK_MESSAGE_UPDATE_MAX_REQUEST
};
enum {
- SINK_INPUT_MESSAGE_POST = PA_SINK_INPUT_MESSAGE_MAX
+ SINK_INPUT_MESSAGE_POST = PA_SINK_INPUT_MESSAGE_MAX,
};
static void output_free(struct output *o);
static int output_create_sink_input(struct output *o);
-static void update_master(struct userdata *u, struct output *o);
-static void pick_master(struct userdata *u, struct output *except);
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;
uint32_t idx;
+ unsigned n = 0;
pa_assert(u);
pa_sink_assert_ref(u->sink);
if (pa_idxset_size(u->outputs) <= 0)
return;
- if (!u->master)
- return;
-
- if (!PA_SINK_OPENED(pa_sink_get_state(u->sink)))
+ if (!PA_SINK_IS_OPENED(pa_sink_get_state(u->sink)))
return;
for (o = pa_idxset_first(u->outputs, &idx); o; o = pa_idxset_next(u->outputs, &idx)) {
pa_usec_t sink_latency;
- if (!o->sink_input || !PA_SINK_OPENED(pa_sink_get_state(o->sink)))
+ if (!o->sink_input || !PA_SINK_IS_OPENED(pa_sink_get_state(o->sink)))
continue;
- sink_latency = pa_sink_get_latency(o->sink);
- o->total_latency = sink_latency + pa_sink_input_get_latency(o->sink_input);
+ o->total_latency = pa_sink_input_get_latency(o->sink_input, &sink_latency);
+ o->total_latency += sink_latency;
if (sink_latency > max_sink_latency)
max_sink_latency = sink_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++;
}
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] master %s latency %0.0f usec.", u->sink->name, u->master->sink->name, (float) u->master->total_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 = pa_idxset_first(u->outputs, &idx); o; o = pa_idxset_next(u->outputs, &idx)) {
uint32_t r = base_rate;
- if (!o->sink_input || !PA_SINK_OPENED(pa_sink_get_state(o->sink)))
+ 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/PA_USEC_PER_SEC);
+ r -= (uint32_t) ((((double) (target_latency - o->total_latency))/(double)u->adjust_time)*(double)r/PA_USEC_PER_SEC);
else if (o->total_latency > target_latency)
- r += (uint32_t) (((((double) o->total_latency - target_latency))/u->adjust_time)*r/PA_USEC_PER_SEC);
+ r += (uint32_t) ((((double) (o->total_latency - target_latency))/(double)u->adjust_time)*(double)r/PA_USEC_PER_SEC);
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);
+ pa_log_warn("[%s] sample rates too different, not adjusting (%u vs. %u).", pa_proplist_gets(o->sink_input->proplist, PA_PROP_MEDIA_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->name, r, (double) r / base_rate, (float) o->total_latency);
+ pa_log_info("[%s] new rate is %u Hz; ratio is %0.3f; latency is %0.0f usec.", pa_proplist_gets(o->sink_input->proplist, PA_PROP_MEDIA_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 time_callback(pa_mainloop_api*a, pa_time_event* e, const struct timeval *tv, void *userdata) {
adjust_rates(u);
pa_gettimeofday(&n);
- n.tv_sec += u->adjust_time;
+ n.tv_sec += (time_t) u->adjust_time;
u->sink->core->mainloop->time_restart(e, &n);
}
+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_log_debug("Thread starting up");
- if (u->core->high_priority)
- pa_make_realtime();
+ if (u->core->realtime_scheduling)
+ pa_make_realtime(u->core->realtime_priority+1);
pa_thread_mq_install(&u->thread_mq);
pa_rtpoll_install(u->rtpoll);
- pa_rtclock_get(&u->thread_info.timestamp);
+ u->thread_info.timestamp = pa_rtclock_usec();
u->thread_info.in_null_mode = FALSE;
for (;;) {
int ret;
- /* If no outputs are connected, render some data and drop it immediately. */
- if (u->sink->thread_info.state == PA_SINK_RUNNING && !u->thread_info.active_outputs) {
- struct timespec now;
-
- pa_rtclock_get(&now);
+ 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 (!u->thread_info.in_null_mode || pa_timespec_cmp(&u->thread_info.timestamp, &now) <= 0) {
- pa_sink_skip(u->sink, u->block_size);
+ /* 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;
- if (!u->thread_info.in_null_mode)
- u->thread_info.timestamp = now;
+ now = pa_rtclock_usec();
- pa_timespec_add(&u->thread_info.timestamp, pa_bytes_to_usec(u->block_size, &u->sink->sample_spec));
- }
+ 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);
+ 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;
pa_assert(o);
/* We are run by the sink thread, on behalf of an output (o). The
- * other output is waiting for us, hence it is safe to access its
+ * 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 */
/* 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 */
for (j = u->thread_info.active_outputs; j; j = j->next)
/* 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, length, NULL);
+ pa_asyncmsgq_send(o->outq, PA_MSGOBJECT(o->userdata->sink), SINK_MESSAGE_NEED, o, (int64_t) length, NULL);
}
/* Called from I/O thread context */
-static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) {
+static int sink_input_pop_cb(pa_sink_input *i, size_t nbytes, pa_memchunk *chunk) {
struct output *o;
pa_sink_input_assert_ref(i);
pa_assert_se(o = i->userdata);
/* If necessary, get some new data */
- request_memblock(o, length);
+ request_memblock(o, nbytes);
+
+ if (pa_memblockq_peek(o->memblockq, chunk) < 0)
+ return -1;
+
+ pa_memblockq_drop(o->memblockq, chunk->length);
+ return 0;
+}
+
+/* Called from I/O thread context */
+static void sink_input_process_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_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;
- return pa_memblockq_peek(o->memblockq, chunk);
+ 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_drop_cb(pa_sink_input *i, size_t length) {
+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(length > 0);
pa_assert_se(o = i->userdata);
- pa_memblockq_drop(o->memblockq, length);
+ 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 I/O thread context */
pa_assert_se(o = i->userdata);
/* Set up the queue from the sink thread to us */
- pa_assert(!o->inq_rtpoll_item);
- o->inq_rtpoll_item = pa_rtpoll_item_new_asyncmsgq(
+ 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->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->rtpoll,
+ PA_RTPOLL_EARLY,
+ o->outq);
}
/* Called from I/O thread context */
pa_assert_se(o = i->userdata);
/* Shut down the queue from the sink thread to us */
- pa_assert(o->inq_rtpoll_item);
- pa_rtpoll_item_free(o->inq_rtpoll_item);
- o->inq_rtpoll_item = NULL;
+ pa_assert(o->inq_rtpoll_item_read && o->outq_rtpoll_item_write);
+
+ pa_rtpoll_item_free(o->inq_rtpoll_item_read);
+ o->inq_rtpoll_item_read = NULL;
+
+ pa_rtpoll_item_free(o->outq_rtpoll_item_write);
+ o->outq_rtpoll_item_write = NULL;
}
/* Called from main context */
pa_sink_input_assert_ref(i);
pa_assert(o = i->userdata);
- pa_module_unload_request(o->userdata->module);
+ pa_module_unload_request(o->userdata->module, TRUE);
output_free(o);
}
+/* Called from IO thread context */
+static void sink_input_state_change_cb(pa_sink_input *i, pa_sink_input_state_t state) {
+ struct userdata *u;
+
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(u = i->userdata);
+
+ /* If we are added for the first time, ask for a rewinding so that
+ * we are heard right-away. */
+ if (PA_SINK_INPUT_IS_LINKED(state) &&
+ i->thread_info.state == PA_SINK_INPUT_INIT)
+ pa_sink_input_request_rewind(i, 0, FALSE, TRUE, TRUE);
+}
+
/* 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;
case SINK_INPUT_MESSAGE_POST:
- if (PA_SINK_OPENED(o->sink_input->sink->thread_info.state))
+ if (PA_SINK_IS_OPENED(o->sink_input->sink->thread_info.state))
pa_memblockq_push_align(o->memblockq, chunk);
else
- pa_memblockq_flush(o->memblockq);
+ pa_memblockq_flush_write(o->memblockq);
- break;
+ return 0;
}
return pa_sink_input_process_msg(obj, code, data, offset, chunk);
if (!o->sink_input)
return;
- pa_asyncmsgq_send(o->userdata->sink->asyncmsgq, PA_MSGOBJECT(o->userdata->sink), SINK_MESSAGE_REMOVE_OUTPUT, o, 0, NULL);
pa_sink_input_unlink(o->sink_input);
+ pa_asyncmsgq_send(o->userdata->sink->asyncmsgq, PA_MSGOBJECT(o->userdata->sink), SINK_MESSAGE_REMOVE_OUTPUT, o, 0, NULL);
pa_sink_input_unref(o->sink_input);
o->sink_input = NULL;
-
}
/* Called from main context */
if (output_create_sink_input(o) >= 0) {
- pa_memblockq_flush(o->memblockq);
+ pa_memblockq_flush_write(o->memblockq);
pa_sink_input_put(o->sink_input);
- if (o->userdata->sink && PA_SINK_LINKED(pa_sink_get_state(o->userdata->sink)))
+ if (o->userdata->sink && PA_SINK_IS_LINKED(pa_sink_get_state(o->userdata->sink)))
pa_asyncmsgq_send(o->userdata->sink->asyncmsgq, PA_MSGOBJECT(o->userdata->sink), SINK_MESSAGE_ADD_OUTPUT, o, 0, NULL);
}
}
for (o = pa_idxset_first(u->outputs, &idx); o; o = pa_idxset_next(u->outputs, &idx))
disable_output(o);
- pick_master(u, NULL);
-
pa_log_info("Device suspended...");
}
pa_sink_suspend(o->sink, FALSE);
- if (PA_SINK_OPENED(pa_sink_get_state(o->sink)))
+ if (PA_SINK_IS_OPENED(pa_sink_get_state(o->sink)))
enable_output(o);
}
- pick_master(u, NULL);
-
pa_log_info("Resumed successfully...");
}
switch (state) {
case PA_SINK_SUSPENDED:
- pa_assert(PA_SINK_OPENED(pa_sink_get_state(u->sink)));
+ pa_assert(PA_SINK_IS_OPENED(pa_sink_get_state(u->sink)));
suspend(u);
break;
case PA_SINK_UNLINKED:
case PA_SINK_INIT:
+ case PA_SINK_INVALID_STATE:
;
}
return 0;
}
-/* Called from thread context of the master */
+/* Called from IO context */
+static void update_max_request(struct userdata *u) {
+ size_t max_request = 0;
+ struct output *o;
+
+ for (o = u->thread_info.active_outputs; o; o = o->next) {
+ 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(u->sink, max_request);
+}
+
+/* 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;
case PA_SINK_MESSAGE_SET_STATE:
pa_atomic_store(&u->thread_info.running, PA_PTR_TO_UINT(data) == PA_SINK_RUNNING);
- break;
- case PA_SINK_MESSAGE_GET_LATENCY:
+ if (PA_PTR_TO_UINT(data) == PA_SINK_SUSPENDED)
+ pa_smoother_pause(u->thread_info.smoother, pa_rtclock_usec());
+ else
+ pa_smoother_resume(u->thread_info.smoother, pa_rtclock_usec());
- /* This code will only be called when running in NULL
- * mode, i.e. when no output is attached. See
- * sink_get_latency_cb() below */
+ break;
- if (u->thread_info.in_null_mode) {
- struct timespec now;
+ case PA_SINK_MESSAGE_GET_LATENCY: {
+ pa_usec_t x, y, c, *delay = data;
- if (pa_timespec_cmp(&u->thread_info.timestamp, pa_rtclock_get(&now)) > 0) {
- *((pa_usec_t*) data) = pa_timespec_diff(&u->thread_info.timestamp, &now);
- break;
- }
- }
+ x = pa_rtclock_usec();
+ y = pa_smoother_get(u->thread_info.smoother, x);
- *((pa_usec_t*) data) = 0;
+ c = pa_bytes_to_usec(u->thread_info.counter, &u->sink->sample_spec);
- break;
+ if (y < c)
+ *delay = c - y;
+ else
+ *delay = 0;
+
+ return 0;
+ }
case SINK_MESSAGE_ADD_OUTPUT: {
struct output *op = data;
PA_LLIST_PREPEND(struct output, u->thread_info.active_outputs, op);
- pa_assert(!op->outq_rtpoll_item);
-
- /* Create pa_asyncmsgq to the sink thread */
+ pa_assert(!op->outq_rtpoll_item_read && !op->inq_rtpoll_item_write);
- op->outq_rtpoll_item = pa_rtpoll_item_new_asyncmsgq(
+ op->outq_rtpoll_item_read = pa_rtpoll_item_new_asyncmsgq_read(
u->rtpoll,
PA_RTPOLL_EARLY-1, /* This item is very important */
op->outq);
+ op->inq_rtpoll_item_write = pa_rtpoll_item_new_asyncmsgq_write(
+ u->rtpoll,
+ PA_RTPOLL_EARLY,
+ op->inq);
+ update_max_request(u);
return 0;
}
PA_LLIST_REMOVE(struct output, u->thread_info.active_outputs, op);
- /* Remove the q that leads from this output to the sink thread */
+ pa_assert(op->outq_rtpoll_item_read && op->inq_rtpoll_item_write);
+
+ pa_rtpoll_item_free(op->outq_rtpoll_item_read);
+ op->outq_rtpoll_item_read = NULL;
- pa_assert(op->outq_rtpoll_item);
- pa_rtpoll_item_free(op->outq_rtpoll_item);
- op->outq_rtpoll_item = NULL;
+ pa_rtpoll_item_free(op->inq_rtpoll_item_write);
+ op->inq_rtpoll_item_write = NULL;
+ update_max_request(u);
return 0;
}
case SINK_MESSAGE_NEED:
- render_memblock(u, data, (size_t) offset);
+ render_memblock(u, (struct output*) data, (size_t) offset);
return 0;
- }
- return pa_sink_process_msg(o, code, data, offset, chunk);
-}
+ case SINK_MESSAGE_UPDATE_LATENCY: {
+ pa_usec_t x, y, latency = (pa_usec_t) offset;
-/* Called from main context */
-static pa_usec_t sink_get_latency_cb(pa_sink *s) {
- struct userdata *u;
-
- pa_sink_assert_ref(s);
- pa_assert_se(u = s->userdata);
+ x = pa_rtclock_usec();
+ y = pa_bytes_to_usec(u->thread_info.counter, &u->sink->sample_spec);
- if (u->master) {
- /* If we have a master sink, we just return the latency of it
- * and add our own buffering on top */
+ if (y > latency)
+ y -= latency;
+ else
+ y = 0;
- if (!u->master->sink_input)
+ pa_smoother_put(u->thread_info.smoother, x, y);
return 0;
+ }
- return
- pa_sink_input_get_latency(u->master->sink_input) +
- pa_sink_get_latency(u->master->sink);
-
- } else {
- pa_usec_t usec = 0;
-
- /* We have no master, hence let's ask our own thread which
- * implements the NULL sink */
-
- if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
- return 0;
+ case SINK_MESSAGE_UPDATE_MAX_REQUEST:
- return usec;
+ update_max_request(u);
+ break;
}
+
+ return pa_sink_process_msg(o, code, data, offset, chunk);
}
static void update_description(struct userdata *u) {
- int first = 1;
+ pa_bool_t first = TRUE;
char *t;
struct output *o;
uint32_t idx;
char *e;
if (first) {
- e = pa_sprintf_malloc("%s %s", t, o->sink->description);
- first = 0;
+ 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, o->sink->description);
+ 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_xfree(t);
}
-static void update_master(struct userdata *u, struct output *o) {
- pa_assert(u);
-
- if (u->master == o)
- return;
-
- if ((u->master = o))
- pa_log_info("Master sink is now '%s'", o->sink_input->sink->name);
- else
- pa_log_info("No master selected, lacking suitable outputs.");
-}
-
-static void pick_master(struct userdata *u, struct output *except) {
- struct output *o;
- uint32_t idx;
- pa_assert(u);
-
- if (u->master &&
- u->master != except &&
- u->master->sink_input &&
- PA_SINK_OPENED(pa_sink_get_state(u->master->sink))) {
- update_master(u, u->master);
- return;
- }
-
- for (o = pa_idxset_first(u->outputs, &idx); o; o = pa_idxset_next(u->outputs, &idx))
- if (o != except &&
- o->sink_input &&
- PA_SINK_OPENED(pa_sink_get_state(o->sink))) {
- update_master(u, o);
- return;
- }
-
- update_master(u, NULL);
-}
-
static int output_create_sink_input(struct output *o) {
pa_sink_input_new_data data;
- char *t;
pa_assert(o);
if (o->sink_input)
return 0;
- t = pa_sprintf_malloc("Simultaneous output on %s", o->sink->description);
-
pa_sink_input_new_data_init(&data);
data.sink = o->sink;
data.driver = __FILE__;
- data.name = t;
+ 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;
- o->sink_input = pa_sink_input_new(o->userdata->core, &data, PA_SINK_INPUT_VARIABLE_RATE|PA_SINK_INPUT_DONT_MOVE);
+ pa_sink_input_new(&o->sink_input, o->userdata->core, &data, PA_SINK_INPUT_VARIABLE_RATE|PA_SINK_INPUT_DONT_MOVE);
- pa_xfree(t);
+ 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->peek = sink_input_peek_cb;
- o->sink_input->drop = sink_input_drop_cb;
+ o->sink_input->pop = sink_input_pop_cb;
+ o->sink_input->process_rewind = sink_input_process_rewind_cb;
+ o->sink_input->state_change = sink_input_state_change_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->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, REQUEST_LATENCY_USEC);
return 0;
}
static struct output *output_new(struct userdata *u, pa_sink *sink) {
struct output *o;
+ pa_sink_state_t state;
pa_assert(u);
pa_assert(sink);
o->userdata = u;
o->inq = pa_asyncmsgq_new(0);
o->outq = pa_asyncmsgq_new(0);
- o->inq_rtpoll_item = NULL;
- o->outq_rtpoll_item = NULL;
+ o->inq_rtpoll_item_write = o->inq_rtpoll_item_read = NULL;
+ o->outq_rtpoll_item_write = o->outq_rtpoll_item_read = NULL;
o->sink = sink;
o->sink_input = NULL;
o->memblockq = pa_memblockq_new(
pa_frame_size(&u->sink->sample_spec),
1,
0,
+ 0,
NULL);
+ pa_atomic_store(&o->max_request, 0);
+ PA_LLIST_INIT(struct output, o);
pa_assert_se(pa_idxset_put(u->outputs, o, NULL) == 0);
- if (u->sink && PA_SINK_LINKED(pa_sink_get_state(u->sink)))
+ state = pa_sink_get_state(u->sink);
+
+ if (state != PA_SINK_INIT)
pa_asyncmsgq_send(u->sink->asyncmsgq, PA_MSGOBJECT(u->sink), SINK_MESSAGE_ADD_OUTPUT, o, 0, NULL);
else {
/* If the sink is not yet started, we need to do the activation ourselves */
PA_LLIST_PREPEND(struct output, u->thread_info.active_outputs, o);
- o->outq_rtpoll_item = pa_rtpoll_item_new_asyncmsgq(
+ o->outq_rtpoll_item_read = pa_rtpoll_item_new_asyncmsgq_read(
u->rtpoll,
PA_RTPOLL_EARLY-1, /* This item is very important */
o->outq);
+ o->inq_rtpoll_item_write = pa_rtpoll_item_new_asyncmsgq_write(
+ u->rtpoll,
+ PA_RTPOLL_EARLY,
+ o->inq);
}
- if (PA_SINK_OPENED(pa_sink_get_state(u->sink)) || pa_sink_get_state(u->sink) == PA_SINK_INIT) {
+ if (PA_SINK_IS_OPENED(state) || state == PA_SINK_INIT) {
pa_sink_suspend(sink, FALSE);
- if (PA_SINK_OPENED(pa_sink_get_state(sink)))
+ if (PA_SINK_IS_OPENED(pa_sink_get_state(sink)))
if (output_create_sink_input(o) < 0)
goto fail;
}
-
update_description(u);
return o;
return NULL;
}
-static pa_hook_result_t sink_new_hook_cb(pa_core *c, pa_sink *s, struct userdata* u) {
+static pa_bool_t is_suitable_sink(struct userdata *u, pa_sink *s) {
+ const char *t;
+
+ pa_sink_assert_ref(s);
+
+ if (!(s->flags & PA_SINK_HARDWARE))
+ return FALSE;
+
+ if (s == u->sink)
+ return FALSE;
+
+ if ((t = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_CLASS)))
+ if (strcmp(t, "sound"))
+ return FALSE;
+
+ return TRUE;
+}
+
+static pa_hook_result_t sink_put_hook_cb(pa_core *c, pa_sink *s, struct userdata* u) {
struct output *o;
pa_core_assert_ref(c);
pa_assert(u);
pa_assert(u->automatic);
- if (!(s->flags & PA_SINK_HARDWARE) || s == u->sink)
+ if (!is_suitable_sink(u, s))
return PA_HOOK_OK;
pa_log_info("Configuring new sink: %s", s->name);
if (o->sink_input)
pa_sink_input_put(o->sink_input);
- pick_master(u, NULL);
-
return PA_HOOK_OK;
}
-static pa_hook_result_t sink_unlink_hook_cb(pa_core *c, pa_sink *s, struct userdata* u) {
+static struct output* find_output(struct userdata *u, pa_sink *s) {
struct output *o;
uint32_t idx;
- pa_assert(c);
- pa_sink_assert_ref(s);
pa_assert(u);
+ pa_assert(s);
- if (s == u->sink)
- return PA_HOOK_OK;
+ if (u->sink == s)
+ return NULL;
for (o = pa_idxset_first(u->outputs, &idx); o; o = pa_idxset_next(u->outputs, &idx))
if (o->sink == s)
- break;
+ return o;
+
+ return NULL;
+}
+
+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)
+ if (!(o = find_output(u, s)))
return PA_HOOK_OK;
pa_log_info("Unconfiguring sink: %s", s->name);
static pa_hook_result_t sink_state_changed_hook_cb(pa_core *c, pa_sink *s, struct userdata* u) {
struct output *o;
- uint32_t idx;
pa_sink_state_t state;
- if (s == u->sink)
- return PA_HOOK_OK;
-
- for (o = pa_idxset_first(u->outputs, &idx); o; o = pa_idxset_next(u->outputs, &idx))
- if (o->sink == s)
- break;
-
- if (!o)
+ if (!(o = find_output(u, s)))
return PA_HOOK_OK;
state = pa_sink_get_state(s);
- if (PA_SINK_OPENED(state) && PA_SINK_OPENED(pa_sink_get_state(u->sink)) && !o->sink_input) {
+ if (PA_SINK_IS_OPENED(state) && PA_SINK_IS_OPENED(pa_sink_get_state(u->sink)) && !o->sink_input)
enable_output(o);
- pick_master(u, NULL);
- }
- if (state == PA_SINK_SUSPENDED && o->sink_input) {
+ if (state == PA_SINK_SUSPENDED && o->sink_input)
disable_output(o);
- pick_master(u, o);
- }
return PA_HOOK_OK;
}
int pa__init(pa_module*m) {
struct userdata *u;
pa_modargs *ma = NULL;
- const char *master_name, *slaves, *rm;
- pa_sink *master_sink = NULL;
+ const char *slaves, *rm;
int resample_method = PA_RESAMPLER_TRIVIAL;
pa_sample_spec ss;
pa_channel_map map;
struct output *o;
uint32_t idx;
+ pa_sink_new_data data;
pa_assert(m);
}
}
- u = pa_xnew(struct userdata, 1);
+ m->userdata = u = pa_xnew(struct userdata, 1);
u->core = m->core;
u->module = m;
- m->userdata = u;
u->sink = NULL;
- u->master = NULL;
u->time_event = NULL;
u->adjust_time = DEFAULT_ADJUST_TIME;
- pa_thread_mq_init(&u->thread_mq, m->core->mainloop);
u->rtpoll = pa_rtpoll_new();
+ pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
u->thread = NULL;
u->resample_method = resample_method;
u->outputs = pa_idxset_new(NULL, NULL);
- pa_timespec_reset(&u->adjust_timestamp);
- u->sink_new_slot = u->sink_unlink_slot = u->sink_state_changed_slot = NULL;
+ memset(&u->adjust_timestamp, 0, sizeof(u->adjust_timestamp));
+ u->sink_put_slot = u->sink_unlink_slot = u->sink_state_changed_slot = NULL;
PA_LLIST_HEAD_INIT(struct output, u->thread_info.active_outputs);
pa_atomic_store(&u->thread_info.running, FALSE);
u->thread_info.in_null_mode = FALSE;
- pa_rtpoll_item_new_asyncmsgq(u->rtpoll, PA_RTPOLL_EARLY, u->thread_mq.inq);
+ u->thread_info.counter = 0;
+ u->thread_info.smoother = pa_smoother_new(PA_USEC_PER_SEC, PA_USEC_PER_SEC*2, TRUE, 10);
if (pa_modargs_get_value_u32(ma, "adjust_time", &u->adjust_time) < 0) {
pa_log("Failed to parse adjust_time value");
goto fail;
}
- master_name = pa_modargs_get_value(ma, "master", NULL);
slaves = pa_modargs_get_value(ma, "slaves", NULL);
- if (!master_name != !slaves) {
- pa_log("No master or slave sinks specified");
- goto fail;
- }
-
- if (master_name) {
- if (!(master_sink = pa_namereg_get(m->core, master_name, PA_NAMEREG_SINK, 1))) {
- pa_log("Invalid master sink '%s'", master_name);
- goto fail;
- }
-
- ss = master_sink->sample_spec;
- u->automatic = FALSE;
- } else {
- master_sink = NULL;
- ss = m->core->default_sample_spec;
- u->automatic = TRUE;
- }
+ u->automatic = !slaves;
- if ((pa_modargs_get_sample_spec(ma, &ss) < 0)) {
+ ss = m->core->default_sample_spec;
+ map = m->core->default_channel_map;
+ 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 (master_sink && 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);
+ 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_DESCRIPTION, "Simultaneous Output");
+ pa_proplist_sets(data.proplist, PA_PROP_DEVICE_CLASS, "filter");
- if ((pa_modargs_get_channel_map(ma, NULL, &map) < 0)) {
- pa_log("Invalid channel map.");
- goto fail;
- }
+ if (slaves)
+ pa_proplist_sets(data.proplist, "combine.slaves", slaves);
- if (ss.channels != map.channels) {
- pa_log("Channel map and sample specification don't match.");
- goto fail;
- }
+ u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY);
+ pa_sink_new_data_done(&data);
- if (!(u->sink = pa_sink_new(m->core, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, &map))) {
+ if (!u->sink) {
pa_log("Failed to create sink");
goto fail;
}
u->sink->parent.process_msg = sink_process_msg;
- u->sink->get_latency = sink_get_latency_cb;
u->sink->set_state = sink_set_state;
u->sink->userdata = u;
- u->sink->flags = PA_SINK_LATENCY;
- pa_sink_set_module(u->sink, m);
- pa_sink_set_description(u->sink, "Simultaneous output");
pa_sink_set_rtpoll(u->sink, u->rtpoll);
pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
- u->block_size = pa_bytes_per_second(&ss) / 20; /* 50 ms */
- if (u->block_size <= 0)
- u->block_size = pa_frame_size(&ss);
+ pa_sink_set_latency_range(u->sink, REQUEST_LATENCY_USEC, REQUEST_LATENCY_USEC);
+ u->block_usec = u->sink->thread_info.max_latency;
+
+ u->sink->thread_info.max_request =
+ 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 master and slaves have been specified manually */
-
- if (!(u->master = output_new(u, master_sink))) {
- pa_log("Failed to create master sink input on sink '%s'.", master_sink->name);
- goto fail;
- }
+ /* 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, 1)) || slave_sink == u->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;
if (pa_idxset_size(u->outputs) <= 1)
pa_log_warn("No slave sinks specified.");
- u->sink_new_slot = NULL;
+ u->sink_put_slot = NULL;
} else {
pa_sink *s;
- /* We're in automatic mode, we elect one hw sink to the master
- * and attach all other hw sinks as slaves to it */
+ /* We're in automatic mode, we add every sink that matches our needs */
for (s = pa_idxset_first(m->core->sinks, &idx); s; s = pa_idxset_next(m->core->sinks, &idx)) {
- if (!(s->flags & PA_SINK_HARDWARE) || s == u->sink)
+ if (!is_suitable_sink(u, s))
continue;
if (!output_new(u, s)) {
}
}
- u->sink_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_NEW_POST], (pa_hook_cb_t) sink_new_hook_cb, u);
+ 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);
}
- u->sink_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK], (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_cb_t) sink_state_changed_hook_cb, u);
-
- pick_master(u, NULL);
+ 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.");
if (u->adjust_time > 0) {
struct timeval tv;
pa_gettimeofday(&tv);
- tv.tv_sec += u->adjust_time;
+ tv.tv_sec += (time_t) u->adjust_time;
u->time_event = m->core->mainloop->time_new(m->core->mainloop, &tv, time_callback, u);
}
static void output_free(struct output *o) {
pa_assert(o);
- pick_master(o->userdata, o);
-
disable_output(o);
pa_assert_se(pa_idxset_remove_by_data(o->userdata->outputs, o, NULL));
update_description(o->userdata);
- if (o->inq_rtpoll_item)
- pa_rtpoll_item_free(o->inq_rtpoll_item);
+ 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)
- pa_rtpoll_item_free(o->outq_rtpoll_item);
+ 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 (!(u = m->userdata))
return;
- if (u->sink_new_slot)
- pa_hook_slot_free(u->sink_new_slot);
+ 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->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);
}