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pulseaudio/src/pulsecore/source.c

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/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
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,
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
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pulse/utf8.h>
#include <pulse/xmalloc.h>
#include <pulse/timeval.h>
#include <pulsecore/source-output.h>
#include <pulsecore/namereg.h>
#include <pulsecore/core-subscribe.h>
#include <pulsecore/log.h>
#include <pulsecore/sample-util.h>
#include "source.h"
#define DEFAULT_MIN_LATENCY (4*PA_USEC_PER_MSEC)
static PA_DEFINE_CHECK_TYPE(pa_source, pa_msgobject);
static void source_free(pa_object *o);
pa_source_new_data* pa_source_new_data_init(pa_source_new_data *data) {
pa_assert(data);
memset(data, 0, sizeof(*data));
data->proplist = pa_proplist_new();
return data;
}
void pa_source_new_data_set_name(pa_source_new_data *data, const char *name) {
pa_assert(data);
pa_xfree(data->name);
data->name = pa_xstrdup(name);
}
void pa_source_new_data_set_sample_spec(pa_source_new_data *data, const pa_sample_spec *spec) {
pa_assert(data);
if ((data->sample_spec_is_set = !!spec))
data->sample_spec = *spec;
}
void pa_source_new_data_set_channel_map(pa_source_new_data *data, const pa_channel_map *map) {
pa_assert(data);
if ((data->channel_map_is_set = !!map))
data->channel_map = *map;
}
void pa_source_new_data_set_volume(pa_source_new_data *data, const pa_cvolume *volume) {
pa_assert(data);
if ((data->volume_is_set = !!volume))
data->volume = *volume;
}
void pa_source_new_data_set_muted(pa_source_new_data *data, pa_bool_t mute) {
pa_assert(data);
data->muted_is_set = TRUE;
data->muted = !!mute;
}
void pa_source_new_data_done(pa_source_new_data *data) {
pa_assert(data);
pa_xfree(data->name);
pa_proplist_free(data->proplist);
}
/* Called from main context */
static void reset_callbacks(pa_source *s) {
pa_assert(s);
s->set_state = NULL;
s->get_volume = NULL;
s->set_volume = NULL;
s->get_mute = NULL;
s->set_mute = NULL;
s->update_requested_latency = NULL;
}
/* Called from main context */
pa_source* pa_source_new(
pa_core *core,
pa_source_new_data *data,
pa_source_flags_t flags) {
pa_source *s;
const char *name;
char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
pa_assert(core);
pa_assert(data);
pa_assert(data->name);
s = pa_msgobject_new(pa_source);
if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SOURCE, s, data->namereg_fail))) {
pa_xfree(s);
return NULL;
}
pa_source_new_data_set_name(data, name);
if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_NEW], data) < 0) {
pa_xfree(s);
pa_namereg_unregister(core, name);
return NULL;
}
pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
if (!data->channel_map_is_set)
pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
if (!data->volume_is_set)
pa_cvolume_reset(&data->volume, data->sample_spec.channels);
pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
pa_return_null_if_fail(data->volume.channels == data->sample_spec.channels);
if (!data->muted_is_set)
data->muted = FALSE;
if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], data) < 0) {
pa_xfree(s);
pa_namereg_unregister(core, name);
return NULL;
}
s->parent.parent.free = source_free;
s->parent.process_msg = pa_source_process_msg;
s->core = core;
s->state = PA_SOURCE_INIT;
s->flags = flags;
s->name = pa_xstrdup(name);
s->proplist = pa_proplist_copy(data->proplist);
s->driver = pa_xstrdup(data->driver);
s->module = data->module;
s->sample_spec = data->sample_spec;
s->channel_map = data->channel_map;
s->outputs = pa_idxset_new(NULL, NULL);
s->n_corked = 0;
s->monitor_of = NULL;
s->volume = data->volume;
s->muted = data->muted;
s->refresh_volume = s->refresh_muted = FALSE;
reset_callbacks(s);
s->userdata = NULL;
s->asyncmsgq = NULL;
s->rtpoll = NULL;
pa_silence_memchunk_get(
&core->silence_cache,
core->mempool,
&s->silence,
&s->sample_spec,
0);
s->thread_info.outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
pa_cvolume_reset(&s->thread_info.soft_volume, s->sample_spec.channels);
s->thread_info.soft_muted = FALSE;
s->thread_info.state = s->state;
s->thread_info.max_rewind = 0;
s->thread_info.requested_latency_valid = FALSE;
s->thread_info.requested_latency = 0;
s->thread_info.min_latency = DEFAULT_MIN_LATENCY;
s->thread_info.max_latency = 0;
pa_assert_se(pa_idxset_put(core->sources, s, &s->index) >= 0);
pa_log_info("Created source %u \"%s\" with sample spec %s and channel map %s",
s->index,
s->name,
pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map));
return s;
}
/* Called from main context */
static int source_set_state(pa_source *s, pa_source_state_t state) {
int ret;
pa_bool_t suspend_change;
pa_source_state_t original_state;
pa_assert(s);
if (s->state == state)
return 0;
original_state = s->state;
suspend_change =
(original_state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(state)) ||
(PA_SOURCE_IS_OPENED(original_state) && state == PA_SOURCE_SUSPENDED);
if (s->set_state)
if ((ret = s->set_state(s, state)) < 0)
return ret;
if (s->asyncmsgq)
if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
if (s->set_state)
s->set_state(s, original_state);
return ret;
}
s->state = state;
if (suspend_change) {
pa_source_output *o;
uint32_t idx;
/* We're suspending or resuming, tell everyone about it */
for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx)))
if (o->suspend)
o->suspend(o, state == PA_SOURCE_SUSPENDED);
}
if (state != PA_SOURCE_UNLINKED) /* if we enter UNLINKED state pa_source_unlink() will fire the apropriate events */
pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], s);
return 0;
}
/* Called from main context */
void pa_source_put(pa_source *s) {
pa_source_assert_ref(s);
pa_assert(s->state == PA_SOURCE_INIT);
/* The following fields must be initialized properly when calling _put() */
pa_assert(s->asyncmsgq);
pa_assert(s->rtpoll);
pa_assert(!s->thread_info.min_latency || !s->thread_info.max_latency ||
s->thread_info.min_latency <= s->thread_info.max_latency);
if (!(s->flags & PA_SOURCE_HW_VOLUME_CTRL)) {
s->flags |= PA_SOURCE_DECIBEL_VOLUME;
s->thread_info.soft_volume = s->volume;
s->thread_info.soft_muted = s->muted;
}
pa_assert_se(source_set_state(s, PA_SOURCE_IDLE) == 0);
pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_NEW, s->index);
pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PUT], s);
}
/* Called from main context */
void pa_source_unlink(pa_source *s) {
pa_bool_t linked;
pa_source_output *o, *j = NULL;
pa_assert(s);
/* See pa_sink_unlink() for a couple of comments how this function
* works. */
linked = PA_SOURCE_IS_LINKED(s->state);
if (linked)
pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], s);
if (s->state != PA_SOURCE_UNLINKED)
pa_namereg_unregister(s->core, s->name);
pa_idxset_remove_by_data(s->core->sources, s, NULL);
while ((o = pa_idxset_first(s->outputs, NULL))) {
pa_assert(o != j);
pa_source_output_kill(o);
j = o;
}
if (linked)
source_set_state(s, PA_SOURCE_UNLINKED);
else
s->state = PA_SOURCE_UNLINKED;
reset_callbacks(s);
if (linked) {
pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], s);
}
}
/* Called from main context */
static void source_free(pa_object *o) {
pa_source_output *so;
pa_source *s = PA_SOURCE(o);
pa_assert(s);
pa_assert(pa_source_refcnt(s) == 0);
if (PA_SOURCE_IS_LINKED(s->state))
pa_source_unlink(s);
pa_log_info("Freeing source %u \"%s\"", s->index, s->name);
pa_idxset_free(s->outputs, NULL, NULL);
while ((so = pa_hashmap_steal_first(s->thread_info.outputs)))
pa_source_output_unref(so);
pa_hashmap_free(s->thread_info.outputs, NULL, NULL);
if (s->silence.memblock)
pa_memblock_unref(s->silence.memblock);
pa_xfree(s->name);
pa_xfree(s->driver);
if (s->proplist)
pa_proplist_free(s->proplist);
pa_xfree(s);
}
/* Called from main context */
void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q) {
pa_source_assert_ref(s);
s->asyncmsgq = q;
}
/* Called from main context */
void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p) {
pa_source_assert_ref(s);
s->rtpoll = p;
}
/* Called from main context */
int pa_source_update_status(pa_source*s) {
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->state));
if (s->state == PA_SOURCE_SUSPENDED)
return 0;
return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
}
/* Called from main context */
int pa_source_suspend(pa_source *s, pa_bool_t suspend) {
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->state));
if (suspend)
return source_set_state(s, PA_SOURCE_SUSPENDED);
else
return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
}
/* Called from IO thread context */
void pa_source_process_rewind(pa_source *s, size_t nbytes) {
pa_source_output *o;
void *state = NULL;
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_OPENED(s->thread_info.state));
if (nbytes <= 0)
return;
pa_log_debug("Processing rewind...");
while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
pa_source_output_assert_ref(o);
pa_source_output_process_rewind(o, nbytes);
}
}
/* Called from IO thread context */
void pa_source_post(pa_source*s, const pa_memchunk *chunk) {
pa_source_output *o;
void *state = NULL;
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_OPENED(s->thread_info.state));
pa_assert(chunk);
if (s->thread_info.state != PA_SOURCE_RUNNING)
return;
if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
pa_memchunk vchunk = *chunk;
pa_memblock_ref(vchunk.memblock);
pa_memchunk_make_writable(&vchunk, 0);
if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
pa_silence_memchunk(&vchunk, &s->sample_spec);
else
pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
pa_source_output_assert_ref(o);
if (!o->thread_info.direct_on_input)
pa_source_output_push(o, &vchunk);
}
pa_memblock_unref(vchunk.memblock);
} else {
while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
pa_source_output_assert_ref(o);
if (!o->thread_info.direct_on_input)
pa_source_output_push(o, chunk);
}
}
}
/* Called from IO thread context */
void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk) {
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_OPENED(s->thread_info.state));
pa_source_output_assert_ref(o);
pa_assert(o->thread_info.direct_on_input);
pa_assert(chunk);
if (s->thread_info.state != PA_SOURCE_RUNNING)
return;
if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
pa_memchunk vchunk = *chunk;
pa_memblock_ref(vchunk.memblock);
pa_memchunk_make_writable(&vchunk, 0);
if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
pa_silence_memchunk(&vchunk, &s->sample_spec);
else
pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
pa_source_output_push(o, &vchunk);
pa_memblock_unref(vchunk.memblock);
} else
pa_source_output_push(o, chunk);
}
/* Called from main thread */
pa_usec_t pa_source_get_latency(pa_source *s) {
pa_usec_t usec;
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->state));
if (!PA_SOURCE_IS_OPENED(s->state))
return 0;
pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
return usec;
}
/* Called from main thread */
void pa_source_set_volume(pa_source *s, const pa_cvolume *volume) {
pa_bool_t changed;
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->state));
pa_assert(volume);
changed = !pa_cvolume_equal(volume, &s->volume);
s->volume = *volume;
if (s->set_volume && s->set_volume(s) < 0)
s->set_volume = NULL;
if (!s->set_volume)
pa_source_set_soft_volume(s, volume);
if (changed)
pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
}
/* Called from main thread */
void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume) {
pa_source_assert_ref(s);
pa_assert(volume);
if (PA_SOURCE_IS_LINKED(s->state))
pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, volume, 0, NULL);
else
s->thread_info.soft_volume = *volume;
}
/* Called from main thread */
const pa_cvolume *pa_source_get_volume(pa_source *s, pa_bool_t force_refresh) {
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->state));
if (s->refresh_volume || force_refresh) {
pa_cvolume old_volume = s->volume;
if (s->get_volume && s->get_volume(s) < 0)
s->get_volume = NULL;
if (!s->get_volume)
pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, &s->volume, 0, NULL);
if (!pa_cvolume_equal(&old_volume, &s->volume))
pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
}
return &s->volume;
}
/* Called from main thread */
void pa_source_set_mute(pa_source *s, pa_bool_t mute) {
pa_bool_t changed;
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->state));
changed = s->muted != mute;
s->muted = mute;
if (s->set_mute && s->set_mute(s) < 0)
s->set_mute = NULL;
if (!s->set_mute)
pa_asyncmsgq_post(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, PA_UINT_TO_PTR(mute), 0, NULL, NULL);
if (changed)
pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
}
/* Called from main thread */
pa_bool_t pa_source_get_mute(pa_source *s, pa_bool_t force_refresh) {
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->state));
if (s->refresh_muted || force_refresh) {
pa_bool_t old_muted = s->muted;
if (s->get_mute && s->get_mute(s) < 0)
s->get_mute = NULL;
if (!s->get_mute)
pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, &s->muted, 0, NULL);
if (old_muted != s->muted)
pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
}
return s->muted;
}
/* Called from main thread */
void pa_source_set_description(pa_source *s, const char *description) {
const char *old;
pa_source_assert_ref(s);
if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
return;
old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
if (old && description && !strcmp(old, description))
return;
if (description)
pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
else
pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
if (PA_SOURCE_IS_LINKED(s->state)) {
pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
}
}
/* Called from main thread */
unsigned pa_source_linked_by(pa_source *s) {
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->state));
return pa_idxset_size(s->outputs);
}
/* Called from main thread */
unsigned pa_source_used_by(pa_source *s) {
unsigned ret;
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->state));
ret = pa_idxset_size(s->outputs);
pa_assert(ret >= s->n_corked);
return ret - s->n_corked;
}
/* Called from main thread */
unsigned pa_source_check_suspend(pa_source *s) {
unsigned ret;
pa_source_output *o;
uint32_t idx;
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->state));
ret = 0;
for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx))) {
pa_source_output_state_t st;
st = pa_source_output_get_state(o);
pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(st));
if (st == PA_SOURCE_OUTPUT_CORKED)
continue;
if (o->flags & PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND)
continue;
ret ++;
}
return ret;
}
/* Called from IO thread, except when it is not */
int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
pa_source *s = PA_SOURCE(object);
pa_source_assert_ref(s);
switch ((pa_source_message_t) code) {
case PA_SOURCE_MESSAGE_ADD_OUTPUT: {
pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o));
if (o->direct_on_input) {
o->thread_info.direct_on_input = o->direct_on_input;
pa_hashmap_put(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index), o);
}
pa_assert(!o->thread_info.attached);
o->thread_info.attached = TRUE;
if (o->attach)
o->attach(o);
pa_source_output_set_state_within_thread(o, o->state);
if (o->thread_info.requested_source_latency != (pa_usec_t) -1)
pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
/* We don't just invalidate the requested latency here,
* because if we are in a move we might need to fix up the
* requested latency. */
pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
return 0;
}
case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: {
pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
pa_source_output_set_state_within_thread(o, o->state);
if (o->detach)
o->detach(o);
pa_assert(o->thread_info.attached);
o->thread_info.attached = FALSE;
if (o->thread_info.direct_on_input) {
pa_hashmap_remove(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index));
o->thread_info.direct_on_input = NULL;
}
if (pa_hashmap_remove(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index)))
pa_source_output_unref(o);
pa_source_invalidate_requested_latency(s);
return 0;
}
case PA_SOURCE_MESSAGE_SET_VOLUME:
s->thread_info.soft_volume = *((pa_cvolume*) userdata);
return 0;
case PA_SOURCE_MESSAGE_SET_MUTE:
s->thread_info.soft_muted = PA_PTR_TO_UINT(userdata);
return 0;
case PA_SOURCE_MESSAGE_GET_VOLUME:
*((pa_cvolume*) userdata) = s->thread_info.soft_volume;
return 0;
case PA_SOURCE_MESSAGE_GET_MUTE:
*((pa_bool_t*) userdata) = s->thread_info.soft_muted;
return 0;
case PA_SOURCE_MESSAGE_SET_STATE:
s->thread_info.state = PA_PTR_TO_UINT(userdata);
return 0;
case PA_SOURCE_MESSAGE_DETACH:
/* Detach all streams */
pa_source_detach_within_thread(s);
return 0;
case PA_SOURCE_MESSAGE_ATTACH:
/* Reattach all streams */
pa_source_attach_within_thread(s);
return 0;
case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
pa_usec_t *usec = userdata;
*usec = pa_source_get_requested_latency_within_thread(s);
if (*usec == (pa_usec_t) -1)
*usec = s->thread_info.max_latency;
return 0;
}
case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE: {
pa_usec_t *r = userdata;
pa_source_update_latency_range(s, r[0], r[1]);
return 0;
}
case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE: {
pa_usec_t *r = userdata;
r[0] = s->thread_info.min_latency;
r[1] = s->thread_info.max_latency;
return 0;
}
case PA_SOURCE_MESSAGE_GET_MAX_REWIND:
*((size_t*) userdata) = s->thread_info.max_rewind;
return 0;
case PA_SOURCE_MESSAGE_GET_LATENCY:
if (s->monitor_of) {
*((pa_usec_t*) userdata) = 0;
return 0;
}
/* Implementors need to overwrite this implementation! */
return -1;
case PA_SOURCE_MESSAGE_MAX:
;
}
return -1;
}
/* Called from main thread */
int pa_source_suspend_all(pa_core *c, pa_bool_t suspend) {
uint32_t idx;
pa_source *source;
int ret = 0;
pa_core_assert_ref(c);
for (source = PA_SOURCE(pa_idxset_first(c->sources, &idx)); source; source = PA_SOURCE(pa_idxset_next(c->sources, &idx)))
ret -= pa_source_suspend(source, suspend) < 0;
return ret;
}
/* Called from main thread */
void pa_source_detach(pa_source *s) {
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->state));
pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_DETACH, NULL, 0, NULL) == 0);
}
/* Called from main thread */
void pa_source_attach(pa_source *s) {
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->state));
pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
}
/* Called from IO thread */
void pa_source_detach_within_thread(pa_source *s) {
pa_source_output *o;
void *state = NULL;
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
if (o->detach)
o->detach(o);
}
/* Called from IO thread */
void pa_source_attach_within_thread(pa_source *s) {
pa_source_output *o;
void *state = NULL;
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
if (o->attach)
o->attach(o);
}
/* Called from IO thread */
pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
pa_usec_t result = (pa_usec_t) -1;
pa_source_output *o;
void *state = NULL;
pa_source_assert_ref(s);
if (s->thread_info.requested_latency_valid)
return s->thread_info.requested_latency;
while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
if (o->thread_info.requested_source_latency != (pa_usec_t) -1 &&
(result == (pa_usec_t) -1 || result > o->thread_info.requested_source_latency))
result = o->thread_info.requested_source_latency;
if (result != (pa_usec_t) -1) {
if (s->thread_info.max_latency > 0 && result > s->thread_info.max_latency)
result = s->thread_info.max_latency;
if (s->thread_info.min_latency > 0 && result < s->thread_info.min_latency)
result = s->thread_info.min_latency;
}
s->thread_info.requested_latency = result;
s->thread_info.requested_latency_valid = TRUE;
return result;
}
/* Called from main thread */
pa_usec_t pa_source_get_requested_latency(pa_source *s) {
pa_usec_t usec;
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_IS_LINKED(s->state));
if (!PA_SOURCE_IS_OPENED(s->state))
return 0;
pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
return usec;
}
/* Called from IO thread */
void pa_source_set_max_rewind(pa_source *s, size_t max_rewind) {
pa_source_output *o;
void *state = NULL;
pa_source_assert_ref(s);
if (max_rewind == s->thread_info.max_rewind)
return;
s->thread_info.max_rewind = max_rewind;
if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
}
}
void pa_source_invalidate_requested_latency(pa_source *s) {
pa_source_output *o;
void *state = NULL;
pa_source_assert_ref(s);
s->thread_info.requested_latency_valid = FALSE;
if (s->update_requested_latency)
s->update_requested_latency(s);
while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
if (o->update_source_requested_latency)
o->update_source_requested_latency(o);
if (s->monitor_of)
pa_sink_invalidate_requested_latency(s->monitor_of);
}
void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
pa_source_assert_ref(s);
/* min_latency == 0: no limit
* min_latency == (size_t) -1: default limit
* min_latency anything else: specified limit
*
* Similar for max_latency */
if (min_latency == (pa_usec_t) -1)
min_latency = DEFAULT_MIN_LATENCY;
if (max_latency == (pa_usec_t) -1)
max_latency = min_latency;
pa_assert(!min_latency || !max_latency ||
min_latency <= max_latency);
if (PA_SOURCE_IS_LINKED(s->state)) {
pa_usec_t r[2];
r[0] = min_latency;
r[1] = max_latency;
pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
} else {
s->thread_info.min_latency = min_latency;
s->thread_info.max_latency = max_latency;
s->thread_info.requested_latency_valid = FALSE;
}
}
void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
pa_source_assert_ref(s);
pa_assert(min_latency);
pa_assert(max_latency);
if (PA_SOURCE_IS_LINKED(s->state)) {
pa_usec_t r[2] = { 0, 0 };
pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
*min_latency = r[0];
*max_latency = r[1];
} else {
*min_latency = s->thread_info.min_latency;
*max_latency = s->thread_info.max_latency;
}
}
/* Called from IO thread */
void pa_source_update_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
pa_source_output *o;
void *state = NULL;
pa_source_assert_ref(s);
s->thread_info.min_latency = min_latency;
s->thread_info.max_latency = max_latency;
while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
if (o->update_source_latency_range)
o->update_source_latency_range(o);
pa_source_invalidate_requested_latency(s);
}
size_t pa_source_get_max_rewind(pa_source *s) {
size_t r;
pa_source_assert_ref(s);
if (!PA_SOURCE_IS_LINKED(s->state))
return s->thread_info.max_rewind;
pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
return r;
}
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