mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
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296 lines
9.7 KiB
C
296 lines
9.7 KiB
C
#ifndef foointernalhfoo
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#define foointernalhfoo
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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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Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
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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/context.h>
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#include <pulse/stream.h>
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#include <pulse/operation.h>
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#include <pulse/subscribe.h>
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#include <pulse/ext-device-manager.h>
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#include <pulse/ext-stream-restore.h>
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#include <pulsecore/socket-client.h>
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#include <pulsecore/pstream.h>
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#include <pulsecore/pdispatch.h>
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#include <pulsecore/dynarray.h>
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#include <pulsecore/llist.h>
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#include <pulsecore/native-common.h>
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#include <pulsecore/strlist.h>
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#include <pulsecore/mcalign.h>
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#include <pulsecore/memblockq.h>
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#include <pulsecore/hashmap.h>
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#include <pulsecore/refcnt.h>
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#include <pulsecore/time-smoother.h>
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#ifdef HAVE_DBUS
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#include <pulsecore/dbus-util.h>
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#endif
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#include "client-conf.h"
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#define DEFAULT_TIMEOUT (30)
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struct pa_context {
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PA_REFCNT_DECLARE;
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#ifdef HAVE_DBUS
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pa_dbus_wrap_connection *system_bus;
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pa_dbus_wrap_connection *session_bus;
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#endif
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pa_proplist *proplist;
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pa_mainloop_api* mainloop;
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pa_socket_client *client;
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pa_pstream *pstream;
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pa_pdispatch *pdispatch;
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pa_dynarray *record_streams, *playback_streams;
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PA_LLIST_HEAD(pa_stream, streams);
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PA_LLIST_HEAD(pa_operation, operations);
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uint32_t version;
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uint32_t ctag;
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uint32_t csyncid;
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int error;
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pa_context_state_t state;
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pa_context_notify_cb_t state_callback;
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void *state_userdata;
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pa_context_subscribe_cb_t subscribe_callback;
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void *subscribe_userdata;
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pa_context_event_cb_t event_callback;
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void *event_userdata;
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pa_mempool *mempool;
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pa_bool_t is_local:1;
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pa_bool_t do_shm:1;
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pa_bool_t server_specified:1;
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pa_bool_t no_fail:1;
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pa_bool_t do_autospawn:1;
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pa_bool_t use_rtclock:1;
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pa_spawn_api spawn_api;
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pa_strlist *server_list;
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char *server;
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pa_client_conf *conf;
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uint32_t client_index;
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/* Extension specific data */
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struct {
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pa_ext_device_manager_subscribe_cb_t callback;
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void *userdata;
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} ext_device_manager;
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struct {
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pa_ext_stream_restore_subscribe_cb_t callback;
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void *userdata;
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} ext_stream_restore;
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};
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#define PA_MAX_WRITE_INDEX_CORRECTIONS 32
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typedef struct pa_index_correction {
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uint32_t tag;
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int64_t value;
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pa_bool_t valid:1;
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pa_bool_t absolute:1;
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pa_bool_t corrupt:1;
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} pa_index_correction;
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struct pa_stream {
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PA_REFCNT_DECLARE;
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PA_LLIST_FIELDS(pa_stream);
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pa_context *context;
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pa_mainloop_api *mainloop;
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uint32_t direct_on_input;
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pa_stream_direction_t direction;
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pa_stream_state_t state;
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pa_stream_flags_t flags;
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pa_sample_spec sample_spec;
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pa_channel_map channel_map;
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pa_proplist *proplist;
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pa_bool_t channel_valid:1;
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pa_bool_t suspended:1;
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pa_bool_t corked:1;
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pa_bool_t timing_info_valid:1;
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pa_bool_t auto_timing_update_requested:1;
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uint32_t channel;
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uint32_t syncid;
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uint32_t stream_index;
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int64_t requested_bytes;
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pa_buffer_attr buffer_attr;
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uint32_t device_index;
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char *device_name;
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/* playback */
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pa_memblock *write_memblock;
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void *write_data;
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/* recording */
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pa_memchunk peek_memchunk;
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void *peek_data;
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pa_memblockq *record_memblockq;
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/* Store latest latency info */
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pa_timing_info timing_info;
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/* Use to make sure that time advances monotonically */
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pa_usec_t previous_time;
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/* time updates with tags older than these are invalid */
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uint32_t write_index_not_before;
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uint32_t read_index_not_before;
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/* Data about individual timing update corrections */
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pa_index_correction write_index_corrections[PA_MAX_WRITE_INDEX_CORRECTIONS];
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int current_write_index_correction;
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/* Latency interpolation stuff */
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pa_time_event *auto_timing_update_event;
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pa_usec_t auto_timing_interval_usec;
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pa_smoother *smoother;
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/* Callbacks */
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pa_stream_notify_cb_t state_callback;
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void *state_userdata;
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pa_stream_request_cb_t read_callback;
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void *read_userdata;
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pa_stream_request_cb_t write_callback;
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void *write_userdata;
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pa_stream_notify_cb_t overflow_callback;
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void *overflow_userdata;
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pa_stream_notify_cb_t underflow_callback;
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void *underflow_userdata;
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pa_stream_notify_cb_t latency_update_callback;
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void *latency_update_userdata;
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pa_stream_notify_cb_t moved_callback;
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void *moved_userdata;
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pa_stream_notify_cb_t suspended_callback;
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void *suspended_userdata;
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pa_stream_notify_cb_t started_callback;
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void *started_userdata;
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pa_stream_event_cb_t event_callback;
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void *event_userdata;
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pa_stream_notify_cb_t buffer_attr_callback;
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void *buffer_attr_userdata;
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};
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typedef void (*pa_operation_cb_t)(void);
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struct pa_operation {
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PA_REFCNT_DECLARE;
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pa_context *context;
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pa_stream *stream;
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PA_LLIST_FIELDS(pa_operation);
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pa_operation_state_t state;
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void *userdata;
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pa_operation_cb_t callback;
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void *private; /* some operations might need this */
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};
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void pa_command_request(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
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void pa_command_stream_killed(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
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void pa_command_subscribe_event(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
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void pa_command_overflow_or_underflow(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
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void pa_command_stream_suspended(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
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void pa_command_stream_moved(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
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void pa_command_stream_started(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
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void pa_command_stream_event(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
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void pa_command_client_event(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
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void pa_command_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
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pa_operation *pa_operation_new(pa_context *c, pa_stream *s, pa_operation_cb_t callback, void *userdata);
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void pa_operation_done(pa_operation *o);
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void pa_create_stream_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
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void pa_stream_disconnect_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
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void pa_context_simple_ack_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
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void pa_stream_simple_ack_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
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void pa_context_fail(pa_context *c, int error);
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int pa_context_set_error(pa_context *c, int error);
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void pa_context_set_state(pa_context *c, pa_context_state_t st);
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int pa_context_handle_error(pa_context *c, uint32_t command, pa_tagstruct *t, pa_bool_t fail);
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pa_operation* pa_context_send_simple_command(pa_context *c, uint32_t command, void (*internal_callback)(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata), void (*cb)(void), void *userdata);
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void pa_stream_set_state(pa_stream *s, pa_stream_state_t st);
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pa_tagstruct *pa_tagstruct_command(pa_context *c, uint32_t command, uint32_t *tag);
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#define PA_CHECK_VALIDITY(context, expression, error) \
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do { \
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if (!(expression)) \
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return -pa_context_set_error((context), (error)); \
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} while(FALSE)
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#define PA_CHECK_VALIDITY_RETURN_ANY(context, expression, error, value) \
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do { \
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if (!(expression)) { \
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pa_context_set_error((context), (error)); \
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return value; \
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} \
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} while(FALSE)
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#define PA_CHECK_VALIDITY_RETURN_NULL(context, expression, error) \
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PA_CHECK_VALIDITY_RETURN_ANY(context, expression, error, NULL)
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#define PA_FAIL(context, error) \
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do { \
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return -pa_context_set_error((context), (error)); \
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} while(FALSE)
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#define PA_FAIL_RETURN_ANY(context, error, value) \
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do { \
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pa_context_set_error((context), (error)); \
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return value; \
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} while(FALSE)
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#define PA_FAIL_RETURN_NULL(context, error) \
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PA_FAIL_RETURN_ANY(context, error, NULL)
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void pa_ext_device_manager_command(pa_context *c, uint32_t tag, pa_tagstruct *t);
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void pa_ext_stream_restore_command(pa_context *c, uint32_t tag, pa_tagstruct *t);
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pa_bool_t pa_mainloop_is_our_api(pa_mainloop_api*m);
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#endif
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