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8c31974f56
- We now implement a logic where the sink maintains two distinct volumes: the 'reference' volume which is shown to the users, and the 'real' volume, which is configured to the hardware. The latter is configured to the max of all streams. Volume changes on sinks are propagated back to the streams proportional to the reference volume change. Volume changes on sink inputs are forwarded to the sink by 'pushing' the volume if necessary. This renames the old 'virtual_volume' to 'real_volume'. The 'reference_volume' is now the one exposed to users. By this logic the sink volume visible to the user, will always be the "upper" boundary for everything that is played. Saved/restored stream volumes are measured relative to this boundary, the factor here is always < 1.0. - introduce accuracy for sink volumes, similar to the accuracy we already have for source volumes. - other cleanups.
189 lines
5.9 KiB
C
189 lines
5.9 KiB
C
#ifndef foocorehfoo
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#define foocorehfoo
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/***
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This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#include <pulse/mainloop-api.h>
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#include <pulse/sample.h>
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typedef struct pa_core pa_core;
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/* This is a bitmask that encodes the cause why a sink/source is
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* suspended. */
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typedef enum pa_suspend_cause {
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PA_SUSPEND_USER = 1, /* Exposed to the user via some protocol */
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PA_SUSPEND_APPLICATION = 2, /* Used by the device reservation logic */
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PA_SUSPEND_IDLE = 4, /* Used by module-suspend-on-idle */
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PA_SUSPEND_SESSION = 8, /* Used by module-hal for mark inactive sessions */
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PA_SUSPEND_ALL = 0xFFFF /* Magic cause that can be used to resume forcibly */
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} pa_suspend_cause_t;
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#include <pulsecore/idxset.h>
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#include <pulsecore/hashmap.h>
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#include <pulsecore/memblock.h>
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#include <pulsecore/resampler.h>
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#include <pulsecore/queue.h>
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#include <pulsecore/llist.h>
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#include <pulsecore/hook-list.h>
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#include <pulsecore/asyncmsgq.h>
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#include <pulsecore/sample-util.h>
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#include <pulsecore/sink.h>
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#include <pulsecore/source.h>
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#include <pulsecore/core-subscribe.h>
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#include <pulsecore/sink-input.h>
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#include <pulsecore/msgobject.h>
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typedef enum pa_core_state {
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PA_CORE_STARTUP,
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PA_CORE_RUNNING,
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PA_CORE_SHUTDOWN
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} pa_core_state_t;
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typedef enum pa_core_hook {
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PA_CORE_HOOK_SINK_NEW,
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PA_CORE_HOOK_SINK_FIXATE,
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PA_CORE_HOOK_SINK_PUT,
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PA_CORE_HOOK_SINK_UNLINK,
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PA_CORE_HOOK_SINK_UNLINK_POST,
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PA_CORE_HOOK_SINK_STATE_CHANGED,
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PA_CORE_HOOK_SINK_PROPLIST_CHANGED,
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PA_CORE_HOOK_SOURCE_NEW,
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PA_CORE_HOOK_SOURCE_FIXATE,
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PA_CORE_HOOK_SOURCE_PUT,
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PA_CORE_HOOK_SOURCE_UNLINK,
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PA_CORE_HOOK_SOURCE_UNLINK_POST,
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PA_CORE_HOOK_SOURCE_STATE_CHANGED,
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PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED,
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PA_CORE_HOOK_SINK_INPUT_NEW,
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PA_CORE_HOOK_SINK_INPUT_FIXATE,
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PA_CORE_HOOK_SINK_INPUT_PUT,
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PA_CORE_HOOK_SINK_INPUT_UNLINK,
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PA_CORE_HOOK_SINK_INPUT_UNLINK_POST,
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PA_CORE_HOOK_SINK_INPUT_MOVE_START,
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PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH,
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PA_CORE_HOOK_SINK_INPUT_MOVE_FAIL,
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PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED,
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PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED,
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PA_CORE_HOOK_SINK_INPUT_SEND_EVENT,
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PA_CORE_HOOK_SOURCE_OUTPUT_NEW,
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PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE,
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PA_CORE_HOOK_SOURCE_OUTPUT_PUT,
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PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK,
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PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST,
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PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START,
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PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH,
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PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL,
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PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED,
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PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED,
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PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT,
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PA_CORE_HOOK_CLIENT_NEW,
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PA_CORE_HOOK_CLIENT_PUT,
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PA_CORE_HOOK_CLIENT_UNLINK,
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PA_CORE_HOOK_CLIENT_PROPLIST_CHANGED,
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PA_CORE_HOOK_CLIENT_SEND_EVENT,
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PA_CORE_HOOK_CARD_NEW,
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PA_CORE_HOOK_CARD_PUT,
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PA_CORE_HOOK_CARD_UNLINK,
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PA_CORE_HOOK_MAX
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} pa_core_hook_t;
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/* The core structure of PulseAudio. Every PulseAudio daemon contains
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* exactly one of these. It is used for storing kind of global
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* variables for the daemon. */
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struct pa_core {
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pa_msgobject parent;
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pa_core_state_t state;
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/* A random value which may be used to identify this instance of
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* PulseAudio. Not cryptographically secure in any way. */
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uint32_t cookie;
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pa_mainloop_api *mainloop;
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/* idxset of all kinds of entities */
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pa_idxset *clients, *cards, *sinks, *sources, *sink_inputs, *source_outputs, *modules, *scache;
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/* Some hashmaps for all sorts of entities */
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pa_hashmap *namereg, *shared;
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/* The default sink/source */
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pa_source *default_source;
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pa_sink *default_sink;
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pa_channel_map default_channel_map;
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pa_sample_spec default_sample_spec;
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unsigned default_n_fragments, default_fragment_size_msec;
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pa_defer_event *module_defer_unload_event;
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pa_defer_event *subscription_defer_event;
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PA_LLIST_HEAD(pa_subscription, subscriptions);
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PA_LLIST_HEAD(pa_subscription_event, subscription_event_queue);
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pa_subscription_event *subscription_event_last;
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pa_mempool *mempool;
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pa_silence_cache silence_cache;
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pa_time_event *exit_event;
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pa_time_event *scache_auto_unload_event;
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int exit_idle_time, scache_idle_time;
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pa_bool_t flat_volumes:1;
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pa_bool_t disallow_module_loading:1;
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pa_bool_t disallow_exit:1;
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pa_bool_t running_as_daemon:1;
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pa_bool_t realtime_scheduling:1;
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pa_bool_t disable_remixing:1;
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pa_bool_t disable_lfe_remixing:1;
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pa_resample_method_t resample_method;
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int realtime_priority;
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/* hooks */
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pa_hook hooks[PA_CORE_HOOK_MAX];
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};
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PA_DECLARE_CLASS(pa_core);
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#define PA_CORE(o) pa_core_cast(o)
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enum {
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PA_CORE_MESSAGE_UNLOAD_MODULE,
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PA_CORE_MESSAGE_MAX
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};
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pa_core* pa_core_new(pa_mainloop_api *m, pa_bool_t shared, size_t shm_size);
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/* Check whether noone is connected to this core */
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void pa_core_check_idle(pa_core *c);
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int pa_core_exit(pa_core *c, pa_bool_t force, int retval);
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void pa_core_maybe_vacuum(pa_core *c);
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/* wrapper for c->mainloop->time_*() RT time events */
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pa_time_event* pa_core_rttime_new(pa_core *c, pa_usec_t usec, pa_time_event_cb_t cb, void *userdata);
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void pa_core_rttime_restart(pa_core *c, pa_time_event *e, pa_usec_t usec);
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#endif
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