#include <config.h>
#endif
-#include <assert.h>
#include <stdio.h>
+#include <errno.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/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/rtclock.h>
+#include <pulsecore/core-error.h>
#include "module-combine-symdef.h"
"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 RENDER_SIZE (1024*10)
-#define DEFAULT_ADJUST_TIME 20
+#define DEFAULT_ADJUST_TIME 10
static const char* const valid_modargs[] = {
"sink_name",
struct output {
struct userdata *userdata;
+ pa_sink *sink;
pa_sink_input *sink_input;
- size_t counter;
+
+ pa_asyncmsgq *asyncmsgq;
+ pa_rtpoll_item *rtpoll_item;
+
pa_memblockq *memblockq;
+
pa_usec_t total_latency;
+
PA_LLIST_FIELDS(struct output);
};
struct userdata {
- pa_module *module;
pa_core *core;
+ pa_module *module;
pa_sink *sink;
- unsigned n_outputs;
+
+ pa_thread *thread;
+ pa_thread_mq thread_mq;
+ pa_rtpoll *rtpoll;
+
+ pa_mutex *mutex;
+
struct output *master;
- pa_time_event *time_event;
- uint32_t adjust_time;
- PA_LLIST_HEAD(struct output, outputs);
+ pa_time_event *time_event;
+ uint32_t adjust_time;
+
+ int automatic;
+ size_t block_size;
+
+ struct timespec timestamp;
+
+ pa_hook_slot *sink_new_slot, *sink_unlink_slot, *sink_state_changed_slot;
+
+ pa_resample_method_t resample_method;
+
+ struct timespec adjust_timestamp;
+
+ pa_idxset* outputs; /* managed in main context */
+
+ struct {
+ PA_LLIST_HEAD(struct output, outputs); /* managed in IO thread context */
+ struct output *master;
+ } thread_info;
};
-static void output_free(struct output *o);
-static void clear_up(struct userdata *u);
+enum {
+ SINK_MESSAGE_DETACH = PA_SINK_MESSAGE_MAX,
+ SINK_MESSAGE_ATTACH,
+ SINK_MESSAGE_ADD_OUTPUT,
+ SINK_MESSAGE_REMOVE_OUTPUT
+};
-static void update_usage(struct userdata *u) {
- pa_module_set_used(u->module, u->sink ? pa_sink_used_by(u->sink) : 0);
-}
+static void output_free(struct output *o);
+static int output_create_sink_input(struct userdata *u, struct output *o);
+static int update_master(struct userdata *u, struct output *o);
+static int pick_master(struct userdata *u);
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;
uint32_t base_rate;
- assert(u && u->sink);
+ uint32_t idx;
- 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;
+ pa_assert(u);
+ pa_sink_assert_ref(u->sink);
- o->total_latency = sink_latency + pa_sink_input_get_latency(o->sink_input);
+ if (pa_idxset_size(u->outputs) <= 0)
+ return;
+
+ if (!PA_SINK_OPENED(pa_sink_get_state(u->sink)))
+ return;
+
+ for (o = pa_idxset_first(u->outputs, &idx); o; o = pa_idxset_next(u->outputs, &idx)) {
+ uint32_t sink_latency;
+
+ if (!o->sink_input || !PA_SINK_OPENED(pa_sink_get_state(o->sink)))
+ continue;
+ 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)
min_total_latency = o->total_latency;
}
- assert(min_total_latency != (pa_usec_t) -1);
-
+ if (min_total_latency == (pa_usec_t) -1)
+ return;
+
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 is %s", u->sink->name, u->master->sink->description);
+
base_rate = u->sink->sample_spec.rate;
-
- for (o = u->outputs; o; o = o->next) {
+
+ 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)))
+ continue;
+
if (o->total_latency < target_latency)
r -= (uint32_t) (((((double) target_latency - o->total_latency))/u->adjust_time)*r/ 1000000);
else if (o->total_latency > target_latency)
r += (uint32_t) (((((double) o->total_latency - target_latency))/u->adjust_time)*r/ 1000000);
-
- if (r < (uint32_t) (base_rate*0.9) || r > (uint32_t) (base_rate*1.1))
+
+ 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_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_sink_input_set_rate(o->sink_input, r);
}
}
}
-static void request_memblock(struct userdata *u) {
- pa_memchunk chunk;
- struct output *o;
- assert(u && u->sink);
-
- update_usage(u);
-
- if (pa_sink_render(u->sink, RENDER_SIZE, &chunk) < 0)
- return;
-
- for (o = u->outputs; o; o = o->next)
- pa_memblockq_push_align(o->memblockq, &chunk);
-
- pa_memblock_unref(chunk.memblock);
-}
-
-static void time_callback(pa_mainloop_api*a, pa_time_event* e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) {
+static void time_callback(pa_mainloop_api*a, pa_time_event* e, const struct timeval *tv, void *userdata) {
struct userdata *u = userdata;
struct timeval n;
- assert(u && a && u->time_event == e);
+
+ pa_assert(u);
+ pa_assert(a);
+ pa_assert(u->time_event == e);
adjust_rates(u);
u->sink->core->mainloop->time_restart(e, &n);
}
+static void thread_func(void *userdata) {
+ struct userdata *u = userdata;
+
+ pa_assert(u);
+
+ pa_log_debug("Thread starting up");
+
+ pa_thread_mq_install(&u->thread_mq);
+ pa_rtpoll_install(u->rtpoll);
+
+ pa_rtclock_get(&u->timestamp);
+
+ /* This is only run when were are in NULL mode, to make sure that
+ * playback doesn't stop. In all other cases we hook our stuff
+ * into the master sink. */
+
+ for (;;) {
+ int ret;
+
+ /* Render some data and drop it immediately */
+ if (u->sink->thread_info.state == PA_SINK_RUNNING) {
+ struct timespec now;
+
+ pa_rtclock_get(&now);
+
+ if (pa_timespec_cmp(&u->timestamp, &now) <= 0) {
+ pa_sink_skip(u->sink, u->block_size);
+ pa_timespec_add(&u->timestamp, pa_bytes_to_usec(u->block_size, &u->sink->sample_spec));
+ }
+
+ pa_rtpoll_set_timer_absolute(u->rtpoll, &u->timestamp);
+ } else
+ pa_rtpoll_set_timer_disabled(u->rtpoll);
+
+ /* Now give the sink inputs some to time to process their data */
+ if ((ret = pa_sink_process_inputs(u->sink)) < 0)
+ goto fail;
+ if (ret > 0)
+ continue;
+
+ /* Check whether there is a message for us to process */
+ if ((ret = pa_thread_mq_process(&u->thread_mq) < 0))
+ goto finish;
+ if (ret > 0)
+ continue;
+
+ /* Hmm, nothing to do. Let's sleep */
+ if (pa_rtpoll_run(u->rtpoll) < 0) {
+ pa_log("poll() failed: %s", pa_cstrerror(errno));
+ goto fail;
+ }
+ }
+
+fail:
+ /* We have to continue processing messages until we receive the
+ * SHUTDOWN message */
+ 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");
+}
+
+static void request_memblock(struct output *o) {
+ pa_memchunk chunk;
+
+ 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_get(o->asyncmsgq, NULL, NULL, NULL, NULL, &chunk, 0) == 0) {
+ pa_memblockq_push_align(o->memblockq, &chunk);
+ pa_asyncmsgq_done(o->asyncmsgq, 0);
+ }
+
+ /* Check whether we're now readable */
+ if (pa_memblockq_is_readable(o->memblockq))
+ return;
+
+ /* OK, we need to prepare new data */
+ pa_mutex_lock(o->userdata->mutex);
+
+ if (PA_SINK_OPENED(o->userdata->sink->thread_info.state)) {
+
+ /* Maybe there's some data now? */
+ while (pa_asyncmsgq_get(o->asyncmsgq, NULL, NULL, NULL, NULL, &chunk, 0) == 0) {
+ pa_memblockq_push_align(o->memblockq, &chunk);
+ pa_asyncmsgq_done(o->asyncmsgq, 0);
+ }
+
+ /* Ok, now let's prepare some data if we really have to */
+ while (!pa_memblockq_is_readable(o->memblockq)) {
+ struct output *j;
+
+ /* Do it! */
+ pa_sink_render(o->userdata->sink, o->userdata->block_size, &chunk);
+
+ /* OK, let's send this data to the other threads */
+ for (j = o->userdata->thread_info.outputs; j; j = j->next)
+ if (j != o && j->sink_input)
+ pa_asyncmsgq_post(j->asyncmsgq, NULL, 0, NULL, 0, &chunk, NULL);
+
+ /* And push it into our own queue */
+ pa_memblockq_push_align(o->memblockq, &chunk);
+ pa_memblock_unref(chunk.memblock);
+ }
+ }
+
+ pa_mutex_unlock(o->userdata->mutex);
+}
+
+/* Called from I/O trhead context */
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);
+ struct output *o;
- if (pa_memblockq_peek(o->memblockq, chunk) >= 0)
- return 0;
+ pa_sink_input_assert_ref(i);
+ o = i->userdata;
+ pa_assert(o);
- /* Try harder */
- request_memblock(o->userdata);
+ /* If necessary, get some new data */
+ request_memblock(o);
- return pa_memblockq_peek(o->memblockq, chunk);
+ return pa_memblockq_peek(o->memblockq, chunk);
}
-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_drop_cb(pa_sink_input *i, size_t length) {
+ struct output *o;
+
+ pa_sink_input_assert_ref(i);
+ pa_assert(length > 0);
+ o = i->userdata;
+ pa_assert(o);
- pa_memblockq_drop(o->memblockq, chunk, length);
- o->counter += length;
+ pa_memblockq_drop(o->memblockq, length);
}
+/* Called from I/O thread context */
+static int sink_input_process_cb(pa_sink_input *i) {
+ struct output *o;
+ pa_memchunk chunk;
+ int r = 0;
+
+ pa_sink_input_assert_ref(i);
+ o = i->userdata;
+ pa_assert(o);
+
+ /* Move all data in the asyncmsgq into our memblockq */
+
+ while (pa_asyncmsgq_get(o->asyncmsgq, NULL, NULL, NULL, NULL, &chunk, 0) == 0) {
+ if (PA_SINK_OPENED(i->sink->thread_info.state))
+ pa_memblockq_push_align(o->memblockq, &chunk);
+ pa_asyncmsgq_done(o->asyncmsgq, 0);
+ }
+
+ /* If the sink is suspended, flush our queue */
+ if (!PA_SINK_OPENED(i->sink->thread_info.state))
+ pa_memblockq_flush(o->memblockq);
+
+ if (o == o->userdata->thread_info.master) {
+ pa_mutex_lock(o->userdata->mutex);
+ r = pa_sink_process_inputs(o->userdata->sink);
+ pa_mutex_unlock(o->userdata->mutex);
+ }
+
+ return r;
+}
+
+/* Called from I/O thread context */
+static void sink_input_attach_cb(pa_sink_input *i) {
+ struct output *o;
+
+ pa_sink_input_assert_ref(i);
+ o = i->userdata;
+ pa_assert(o);
+
+ pa_assert(!o->rtpoll_item);
+ o->rtpoll_item = pa_rtpoll_item_new_asyncmsgq(i->sink->rtpoll, o->asyncmsgq);
+}
+
+/* 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);
+ o = i->userdata;
+ pa_assert(o);
+
+ pa_assert(o->rtpoll_item);
+ pa_rtpoll_item_free(o->rtpoll_item);
+ o->rtpoll_item = 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);
+ struct output *o;
+
+ pa_sink_input_assert_ref(i);
+ o = i->userdata;
+ pa_assert(o);
+
+ pa_sink_input_unlink(o->sink_input);
+ pa_sink_input_unref(o->sink_input);
+ o->sink_input = NULL;
+
pa_module_unload_request(o->userdata->module);
- clear_up(o->userdata);
}
-static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i) {
- struct output *o = i->userdata;
- assert(i && o && o->sink_input);
+/* 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;
+ }
- return pa_bytes_to_usec(pa_memblockq_get_length(o->memblockq), &i->sample_spec);
+ }
+
+ return pa_sink_input_process_msg(obj, code, data, offset, chunk);
}
-static pa_usec_t sink_get_latency_cb(pa_sink *s) {
- struct userdata *u = s->userdata;
- assert(s && u && u->sink && u->master);
+static int suspend(struct userdata *u) {
+ struct output *o;
+ uint32_t idx;
+
+ pa_assert(u);
+
+ /* Let's suspend by unlinking all streams */
+
+ for (o = pa_idxset_first(u->outputs, &idx); o; o = pa_idxset_next(u->outputs, &idx)) {
+ pa_sink_input_unlink(o->sink_input);
+ pa_sink_input_unref(o->sink_input);
+ o->sink_input = NULL;
+ }
- return
- pa_sink_input_get_latency(u->master->sink_input) +
- pa_sink_get_latency(u->master->sink_input->sink);
+ if (pick_master(u) < 0)
+ pa_module_unload_request(u->module);
+
+ pa_log_info("Device suspended...");
+
+ return 0;
}
-static void sink_notify(pa_sink *s) {
- struct userdata *u;
+static int unsuspend(struct userdata *u) {
struct output *o;
+ uint32_t idx;
+
+ pa_assert(u);
+
+ /* Let's resume */
+
+ for (o = pa_idxset_first(u->outputs, &idx); o; o = pa_idxset_next(u->outputs, &idx)) {
+
+ if (output_create_sink_input(u, o) < 0)
+ output_free(o);
+ else
+ pa_sink_input_put(o->sink_input);
+ }
+
+ if (pick_master(u) < 0)
+ pa_module_unload_request(u->module);
+
+ pa_log_info("Resumed successfully...");
+ return 0;
+}
+
+static int sink_set_state(pa_sink *sink, pa_sink_state_t state) {
+ struct userdata *u;
+
+ pa_sink_assert_ref(sink);
+ u = sink->userdata;
+ pa_assert(u);
+
+ /* 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_OPENED(pa_sink_get_state(u->sink)));
+
+ if (suspend(u) < 0)
+ return -1;
+
+ break;
+
+ case PA_SINK_IDLE:
+ case PA_SINK_RUNNING:
+
+ if (pa_sink_get_state(u->sink) == PA_SINK_SUSPENDED) {
+ if (unsuspend(u) < 0)
+ return -1;
+ }
+
+ break;
+
+ case PA_SINK_UNLINKED:
+ case PA_SINK_INIT:
+ ;
+ }
+
+ return 0;
+}
+
+/* Called from thread context of the master */
+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:
+
+ if ((pa_sink_state_t) PA_PTR_TO_UINT(data) == PA_SINK_RUNNING) {
+ /* Only useful when running in NULL mode, i.e. when no
+ * master sink is attached */
+ pa_rtclock_get(&u->timestamp);
+ }
+
+ break;
+
+ case PA_SINK_MESSAGE_GET_LATENCY: {
+ struct timespec now;
+
+ /* This code will only be called when running in NULL
+ * mode, i.e. when no master sink is attached. See
+ * sink_get_latency_cb() below */
+ pa_rtclock_get(&now);
+
+ if (pa_timespec_cmp(&u->timestamp, &now) > 0)
+ *((pa_usec_t*) data) = 0;
+ else
+ *((pa_usec_t*) data) = pa_timespec_diff(&u->timestamp, &now);
+ break;
+ }
+
+ case SINK_MESSAGE_DETACH: {
+ pa_sink_input *i;
+ void *state = NULL;
+
+ /* We're detaching all our input streams artificially, so
+ * that we can driver our sink from a different sink */
+
+ while ((i = pa_hashmap_iterate(u->sink->thread_info.inputs, &state, NULL)))
+ if (i->detach)
+ i->detach(i);
+
+ u->thread_info.master = NULL;
+
+ break;
+ }
- assert(s);
+ case SINK_MESSAGE_ATTACH: {
+ pa_sink_input *i;
+ void *state = NULL;
+
+ /* We're attached all our input streams artificially again */
+
+ while ((i = pa_hashmap_iterate(u->sink->thread_info.inputs, &state, NULL)))
+ if (i->attach)
+ i->attach(i);
+
+ u->thread_info.master = data;
+
+ break;
+ }
+
+ case SINK_MESSAGE_ADD_OUTPUT:
+ PA_LLIST_PREPEND(struct output, u->thread_info.outputs, (struct output*) data);
+ break;
+
+ case SINK_MESSAGE_REMOVE_OUTPUT:
+ PA_LLIST_REMOVE(struct output, u->thread_info.outputs, (struct output*) data);
+ break;
+ }
+
+ return pa_sink_process_msg(o, code, data, offset, chunk);
+}
+
+/* Called from main context */
+static pa_usec_t sink_get_latency_cb(pa_sink *s) {
+ struct userdata *u;
+
+ pa_sink_assert_ref(s);
u = s->userdata;
- assert(u);
+ pa_assert(u);
+
+ if (u->master) {
+ /* If we have a master sink, we just return the latency of it
+ * and add our own buffering on top */
+
+ if (!u->master->sink_input)
+ return 0;
+
+ return
+ pa_sink_input_get_latency(u->master->sink_input) +
+ pa_sink_get_latency(u->master->sink_input->sink);
+
+ } else {
+ pa_usec_t usec;
+
+ /* 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;
+
+ return usec;
+ }
+}
+
+static void update_description(struct userdata *u) {
+ int first = 1;
+ char *t;
+ struct output *o;
+ uint32_t idx;
+
+ pa_assert(u);
- for (o = u->outputs; o; o = o->next)
- pa_sink_notify(o->sink_input->sink);
+ if (pa_idxset_isempty(u->outputs)) {
+ pa_sink_set_description(u->sink, "Simultaneous output");
+ return;
+ }
+
+ t = pa_xstrdup("Simultaneous output to");
+
+ for (o = pa_idxset_first(u->outputs, &idx); o; o = pa_idxset_next(u->outputs, &idx)) {
+ char *e;
+
+ if (first) {
+ e = pa_sprintf_malloc("%s %s", t, o->sink->description);
+ first = 0;
+ } else
+ e = pa_sprintf_malloc("%s, %s", t, o->sink->description);
+
+ pa_xfree(t);
+ t = e;
+ }
+
+ pa_sink_set_description(u->sink, t);
+ pa_xfree(t);
}
-static struct output *output_new(struct userdata *u, pa_sink *sink, int resample_method) {
- struct output *o = NULL;
- char t[256];
- pa_sink_input_new_data data;
+static int update_master(struct userdata *u, struct output *o) {
+ pa_assert(u);
- assert(u && sink && u->sink);
+ /* Make sure everything is detached from the old thread before we move our stuff to a new thread */
+ if (u->sink && PA_SINK_LINKED(pa_sink_get_state(u->sink)))
+ pa_asyncmsgq_send(u->sink->asyncmsgq, PA_MSGOBJECT(u->sink), SINK_MESSAGE_DETACH, NULL, 0, NULL);
+
+ if (o) {
+ /* If we have a master sink we run our own sink in its thread */
+
+ pa_assert(o->sink_input);
+ pa_assert(PA_SINK_OPENED(pa_sink_get_state(o->sink)));
+
+ if (u->thread) {
+ /* If we previously were in NULL mode, let's kill the thread */
+ pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
+ pa_thread_free(u->thread);
+ u->thread = NULL;
+
+ pa_assert(u->rtpoll);
+ pa_rtpoll_free(u->rtpoll);
+ u->rtpoll = NULL;
+ }
- o = pa_xmalloc(sizeof(struct output));
- o->userdata = u;
+ pa_sink_set_asyncmsgq(u->sink, o->sink->asyncmsgq);
+ pa_sink_set_rtpoll(u->sink, o->sink->rtpoll);
+ u->master = o;
- o->counter = 0;
- o->memblockq = pa_memblockq_new(
- 0,
- MEMBLOCKQ_MAXLENGTH,
- MEMBLOCKQ_MAXLENGTH,
- pa_frame_size(&u->sink->sample_spec),
- 1,
- 0,
- NULL);
+ pa_log_info("Master sink is now '%s'", o->sink_input->sink->name);
- pa_snprintf(t, sizeof(t), "Output stream #%u of sink %s", u->n_outputs+1, u->sink->name);
+ } else {
+ /* We have no master sink, let's create our own thread */
+
+ pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
+ u->master = NULL;
+
+ if (!u->thread) {
+ pa_assert(!u->rtpoll);
+
+ u->rtpoll = pa_rtpoll_new();
+ pa_rtpoll_item_new_asyncmsgq(u->rtpoll, u->thread_mq.inq);
+
+ pa_sink_set_rtpoll(u->sink, u->rtpoll);
+
+ if (!(u->thread = pa_thread_new(thread_func, u))) {
+ pa_log("Failed to create thread.");
+ return -1;
+ }
+ }
+
+ pa_log_info("No suitable master sink found, going to NULL mode\n");
+ }
+
+ /* Now attach everything again */
+ if (u->sink && PA_SINK_LINKED(pa_sink_get_state(u->sink)))
+ pa_asyncmsgq_send(u->sink->asyncmsgq, PA_MSGOBJECT(u->sink), SINK_MESSAGE_ATTACH, u->master, 0, NULL);
+
+ return 0;
+}
+
+static int pick_master(struct userdata *u) {
+ struct output *o;
+ uint32_t idx;
+ pa_assert(u);
+
+ if (u->master && u->master->sink_input && PA_SINK_OPENED(pa_sink_get_state(u->master->sink)))
+ return update_master(u, u->master);
+
+ for (o = pa_idxset_first(u->outputs, &idx); o; o = pa_idxset_next(u->outputs, &idx))
+ if (o->sink_input && PA_SINK_OPENED(pa_sink_get_state(o->sink)))
+ return update_master(u, o);
+
+ return update_master(u, NULL);
+}
+
+static int output_create_sink_input(struct userdata *u, struct output *o) {
+ pa_sink_input_new_data data;
+ char *t;
+
+ pa_assert(u);
+ pa_assert(!o->sink_input);
+
+ t = pa_sprintf_malloc("Simultaneous output on %s", o->sink->description);
+
pa_sink_input_new_data_init(&data);
- data.sink = sink;
+ data.sink = o->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;
+ o->sink_input = pa_sink_input_new(u->core, &data, PA_SINK_INPUT_VARIABLE_RATE|PA_SINK_INPUT_DONT_MOVE);
- o->sink_input->get_latency = sink_input_get_latency_cb;
+ pa_xfree(t);
+
+ 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->process = sink_input_process_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;
+
+ return 0;
+}
+
+static struct output *output_new(struct userdata *u, pa_sink *sink, int resample_method) {
+ struct output *o;
+
+ pa_assert(u);
+ pa_assert(sink);
+ pa_assert(u->sink);
+
+ o = pa_xnew(struct output, 1);
+ o->userdata = u;
+ o->asyncmsgq = pa_asyncmsgq_new(0);
+ o->rtpoll_item = NULL;
+ o->sink = sink;
+ o->sink_input = NULL;
+ o->memblockq = pa_memblockq_new(
+ 0,
+ MEMBLOCKQ_MAXLENGTH,
+ MEMBLOCKQ_MAXLENGTH,
+ pa_frame_size(&u->sink->sample_spec),
+ 1,
+ 0,
+ NULL);
+
+
+ update_description(u);
+
+ pa_assert_se(pa_idxset_put(u->outputs, o, NULL) == 0);
+ if (u->sink && PA_SINK_LINKED(pa_sink_get_state(u->sink)))
+ pa_asyncmsgq_send(u->sink->asyncmsgq, PA_MSGOBJECT(u->sink), SINK_MESSAGE_ADD_OUTPUT, o, 0, NULL);
+ else
+ PA_LLIST_PREPEND(struct output, u->thread_info.outputs, o);
+
+ if (PA_SINK_OPENED(pa_sink_get_state(sink)))
+ if (output_create_sink_input(u, o) < 0)
+ goto fail;
- PA_LLIST_PREPEND(struct output, u->outputs, o);
- u->n_outputs++;
return o;
fail:
if (o) {
if (o->sink_input) {
- pa_sink_input_disconnect(o->sink_input);
+ pa_sink_input_unlink(o->sink_input);
pa_sink_input_unref(o->sink_input);
}
if (o->memblockq)
pa_memblockq_free(o->memblockq);
+ if (o->asyncmsgq)
+ pa_asyncmsgq_unref(o->asyncmsgq);
+
pa_xfree(o);
}
return NULL;
}
-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);
- pa_sink_input_unref(o->sink_input);
- pa_xfree(o);
+static pa_hook_result_t sink_new_hook_cb(pa_core *c, pa_sink *s, struct userdata* u) {
+ struct output *o;
+
+ pa_core_assert_ref(c);
+ pa_sink_assert_ref(s);
+ pa_assert(u);
+ pa_assert(u->automatic);
+
+ if (!(s->flags & PA_SINK_HARDWARE) || s == u->sink)
+ return PA_HOOK_OK;
+
+ pa_log_info("Configuring new sink: %s", s->name);
+
+ if (!(o = output_new(u, s, u->resample_method))) {
+ pa_log("Failed to create sink input on sink '%s'.", s->name);
+ return PA_HOOK_OK;
+ }
+
+ if (pick_master(u) < 0)
+ pa_module_unload_request(u->module);
+
+ if (o->sink_input)
+ pa_sink_input_put(o->sink_input);
+
+ return PA_HOOK_OK;
}
-static void clear_up(struct userdata *u) {
+static pa_hook_result_t sink_unlink_hook_cb(pa_core *c, pa_sink *s, struct userdata* u) {
struct output *o;
- assert(u);
+ uint32_t idx;
+
+ pa_assert(c);
+ pa_sink_assert_ref(s);
+ pa_assert(u);
+
+ 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)
+ return PA_HOOK_OK;
+
+ pa_log_info("Unconfiguring sink: %s", s->name);
+
+ output_free(o);
+
+ if (pick_master(u) < 0)
+ pa_module_unload_request(u->module);
+
+ return PA_HOOK_OK;
+}
- if (u->time_event) {
- u->core->mainloop->time_free(u->time_event);
- u->time_event = NULL;
- }
+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;
- while ((o = u->outputs))
- output_free(o);
+ if (s == u->sink)
+ return PA_HOOK_OK;
- u->master = NULL;
+ for (o = pa_idxset_first(u->outputs, &idx); o; o = pa_idxset_next(u->outputs, &idx))
+ if (o->sink == s)
+ break;
- if (u->sink) {
- pa_sink_disconnect(u->sink);
- pa_sink_unref(u->sink);
- u->sink = NULL;
+ if (!o)
+ return PA_HOOK_OK;
+
+ state = pa_sink_get_state(s);
+
+ if (PA_SINK_OPENED(state) && !o->sink_input) {
+ output_create_sink_input(u, o);
+
+ if (pick_master(u) < 0)
+ pa_module_unload_request(u->module);
+
+ if (o->sink_input)
+ pa_sink_input_put(o->sink_input);
}
+
+ if (state == PA_SINK_SUSPENDED && o->sink_input) {
+ pa_sink_input_unlink(o->sink_input);
+ pa_sink_input_unref(o->sink_input);
+ o->sink_input = NULL;
+
+ pa_memblockq_flush(o->memblockq);
+
+ if (pick_master(u) < 0)
+ pa_module_unload_request(u->module);
+ }
+
+ 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;
+ pa_sink *master_sink = NULL;
int resample_method = -1;
pa_sample_spec ss;
pa_channel_map map;
+ struct output *o;
+ uint32_t idx;
- assert(c && m);
+ pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("failed to parse module arguments");
}
u = pa_xnew(struct userdata, 1);
+ u->core = m->core;
+ u->module = m;
m->userdata = u;
u->sink = NULL;
- u->n_outputs = 0;
- u->master = NULL;
- 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->thread_info.master = u->master = NULL;
+ u->time_event = NULL;
+ u->adjust_time = DEFAULT_ADJUST_TIME;
+ u->mutex = pa_mutex_new(0);
+ pa_thread_mq_init(&u->thread_mq, m->core->mainloop);
+ u->rtpoll = NULL;
+ u->thread = NULL;
+ PA_LLIST_HEAD_INIT(struct output, u->thread_info.outputs);
+ u->resample_method = resample_method;
+ u->outputs = pa_idxset_new(NULL, NULL);
+ pa_timespec_reset(&u->adjust_timestamp);
+
if (pa_modargs_get_value_u32(ma, "adjust_time", &u->adjust_time) < 0) {
- pa_log("failed to parse adjust_time value");
+ 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");
+ 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_sink = pa_namereg_get(c, master_name, PA_NAMEREG_SINK, 1))) {
- pa_log("invalid master sink '%s'", master_name);
- 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 = 0;
+ } else {
+ master_sink = NULL;
+ ss = m->core->default_sample_spec;
+ u->automatic = 1;
}
- ss = master_sink->sample_spec;
if ((pa_modargs_get_sample_spec(ma, &ss) < 0)) {
- pa_log("invalid sample specification.");
+ pa_log("Invalid sample specification.");
goto fail;
}
- if (ss.channels == master_sink->sample_spec.channels)
+ 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);
if ((pa_modargs_get_channel_map(ma, &map) < 0)) {
- pa_log("invalid channel map.");
+ pa_log("Invalid channel map.");
goto fail;
}
-
+
if (ss.channels != map.channels) {
- pa_log("channel map and sample specification don't match.");
+ pa_log("Channel map and sample specification don't match.");
goto fail;
}
- 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");
+ if (!(u->sink = pa_sink_new(m->core, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, &map))) {
+ 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->parent.process_msg = sink_process_msg;
u->sink->get_latency = sink_get_latency_cb;
- u->sink->notify = sink_notify;
+ 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);
+ u->sink->flags = PA_SINK_CAN_SUSPEND|PA_SINK_LATENCY;
+ pa_sink_set_module(u->sink, m);
+ pa_sink_set_description(u->sink, "Simultaneous output");
+
+ u->block_size = pa_bytes_per_second(&ss) / 20; /* 50 ms */
+ if (u->block_size <= 0)
+ u->block_size = pa_frame_size(&ss);
+
+ 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, resample_method))) {
+ pa_log("Failed to create master sink input on sink '%s'.", master_sink->name);
goto fail;
}
+
+ 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) {
+ pa_log("Invalid slave sink '%s'", n);
+ pa_xfree(n);
+ goto fail;
+ }
+
+ pa_xfree(n);
+
+ if (!output_new(u, slave_sink, resample_method)) {
+ 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("WARNING: 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_new_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 */
+
+ 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)
+ continue;
+
+ if (!output_new(u, s, resample_method)) {
+ pa_log("Failed to create sink input on sink '%s'.", s->name);
+ goto fail;
+ }
}
+
+ 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);
}
- if (u->n_outputs <= 1)
- pa_log_warn("WARNING: no slave sinks specified.");
+ 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);
+
+ if (pick_master(u) < 0)
+ goto fail;
+ /* Activate the sink and the sink inputs */
+ pa_sink_put(u->sink);
+ for (o = pa_idxset_first(u->outputs, &idx); o; o = pa_idxset_next(u->outputs, &idx))
+ pa_sink_input_put(o->sink_input);
+
if (u->adjust_time > 0) {
+ struct timeval tv;
pa_gettimeofday(&tv);
tv.tv_sec += u->adjust_time;
- u->time_event = c->mainloop->time_new(c->mainloop, &tv, time_callback, u);
+ u->time_event = m->core->mainloop->time_new(m->core->mainloop, &tv, time_callback, u);
}
pa_modargs_free(ma);
+
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) {
+static void output_free(struct output *o) {
+ pa_assert(o);
+
+ if (o->userdata) {
+ if (o->userdata->sink && PA_SINK_LINKED(pa_sink_get_state(o->userdata->sink)))
+ pa_asyncmsgq_send(o->userdata->sink->asyncmsgq, PA_MSGOBJECT(o->userdata->sink), SINK_MESSAGE_REMOVE_OUTPUT, o, 0, NULL);
+ else
+ PA_LLIST_REMOVE(struct output, o->userdata->thread_info.outputs, o);
+ }
+
+ pa_assert_se(pa_idxset_remove_by_data(o->userdata->outputs, o, NULL));
+
+ if (o->userdata->master == o) {
+ /* Make sure the master points to a different output */
+ o->userdata->master = NULL;
+ pick_master(o->userdata);
+ }
+
+ update_description(o->userdata);
+
+ if (o->sink_input) {
+ pa_sink_input_unlink(o->sink_input);
+ pa_sink_input_unref(o->sink_input);
+ }
+
+ if (o->rtpoll_item)
+ pa_rtpoll_item_free(o->rtpoll_item);
+
+ if (o->memblockq)
+ pa_memblockq_free(o->memblockq);
+
+ if (o->asyncmsgq)
+ pa_asyncmsgq_unref(o->asyncmsgq);
+
+ pa_xfree(o);
+}
+
+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);
+ if (u->sink_new_slot)
+ pa_hook_slot_free(u->sink_new_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->sink)
+ pa_sink_unlink(u->sink);
+
+ if (u->outputs) {
+ while ((o = pa_idxset_first(u->outputs, NULL)))
+ output_free(o);
+
+ pa_idxset_free(u->outputs, NULL, NULL);
+ }
+
+ 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);
+
+ pa_mutex_free(u->mutex);
+
pa_xfree(u);
}