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#ifndef foopulsesourcehfoo
#define foopulsesourcehfoo
/* $Id$ */
/***
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.
***/
typedef struct pa_source pa_source;
#include <inttypes.h>
#include <pulse/sample.h>
#include <pulse/channelmap.h>
#include <pulse/volume.h>
#include <pulsecore/core.h>
#include <pulsecore/idxset.h>
#include <pulsecore/memblock.h>
#include <pulsecore/memchunk.h>
#include <pulsecore/sink.h>
#include <pulsecore/module.h>
#include <pulsecore/asyncmsgq.h>
#include <pulsecore/msgobject.h>
#include <pulsecore/rtpoll.h>
#define PA_MAX_OUTPUTS_PER_SOURCE 32
typedef enum pa_source_state {
PA_SOURCE_INIT,
PA_SOURCE_RUNNING,
PA_SOURCE_SUSPENDED,
PA_SOURCE_IDLE,
PA_SOURCE_UNLINKED
} pa_source_state_t;
static inline pa_bool_t PA_SOURCE_IS_OPENED(pa_source_state_t x) {
return x == PA_SOURCE_RUNNING || x == PA_SOURCE_IDLE;
}
static inline pa_bool_t PA_SOURCE_IS_LINKED(pa_source_state_t x) {
return x == PA_SOURCE_RUNNING || x == PA_SOURCE_IDLE || x == PA_SOURCE_SUSPENDED;
}
struct pa_source {
pa_msgobject parent;
uint32_t index;
pa_core *core;
pa_source_state_t state;
pa_source_flags_t flags;
char *name;
char *driver; /* may be NULL */
pa_proplist *proplist;
pa_module *module; /* may be NULL */
pa_sample_spec sample_spec;
pa_channel_map channel_map;
pa_idxset *outputs;
unsigned n_corked;
pa_sink *monitor_of; /* may be NULL */
pa_cvolume volume;
pa_bool_t muted;
pa_bool_t refresh_volume;
pa_bool_t refresh_muted;
pa_asyncmsgq *asyncmsgq;
pa_rtpoll *rtpoll;
pa_memchunk silence;
pa_usec_t min_latency; /* we won't go below this latency setting */
pa_usec_t max_latency; /* An upper limit for the latencies */
int (*set_state)(pa_source*source, pa_source_state_t state); /* may be NULL */
int (*set_volume)(pa_source *s); /* dito */
int (*get_volume)(pa_source *s); /* dito */
int (*set_mute)(pa_source *s); /* dito */
int (*get_mute)(pa_source *s); /* dito */
pa_usec_t (*get_latency)(pa_source *s); /* dito */
void (*update_requested_latency)(pa_source *s); /* dito */
/* Contains copies of the above data so that the real-time worker
* thread can work without access locking */
struct {
pa_source_state_t state;
pa_hashmap *outputs;
pa_cvolume soft_volume;
pa_bool_t soft_muted;
pa_bool_t requested_latency_valid;
size_t requested_latency;
/* Then number of bytes this source will be rewound for at
* max */
size_t max_rewind;
} thread_info;
void *userdata;
};
PA_DECLARE_CLASS(pa_source);
#define PA_SOURCE(s) pa_source_cast(s)
typedef enum pa_source_message {
PA_SOURCE_MESSAGE_ADD_OUTPUT,
PA_SOURCE_MESSAGE_REMOVE_OUTPUT,
PA_SOURCE_MESSAGE_GET_VOLUME,
PA_SOURCE_MESSAGE_SET_VOLUME,
PA_SOURCE_MESSAGE_GET_MUTE,
PA_SOURCE_MESSAGE_SET_MUTE,
PA_SOURCE_MESSAGE_GET_LATENCY,
PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY,
PA_SOURCE_MESSAGE_SET_STATE,
PA_SOURCE_MESSAGE_ATTACH,
PA_SOURCE_MESSAGE_DETACH,
PA_SOURCE_MESSAGE_MAX
} pa_source_message_t;
typedef struct pa_source_new_data {
char *name;
pa_bool_t namereg_fail;
pa_proplist *proplist;
const char *driver;
pa_module *module;
pa_sample_spec sample_spec;
pa_bool_t sample_spec_is_set;
pa_channel_map channel_map;
pa_bool_t channel_map_is_set;
pa_cvolume volume;
pa_bool_t volume_is_set;
pa_bool_t muted;
pa_bool_t muted_is_set;
} pa_source_new_data;
pa_source_new_data* pa_source_new_data_init(pa_source_new_data *data);
void pa_source_new_data_set_name(pa_source_new_data *data, const char *name);
void pa_source_new_data_set_sample_spec(pa_source_new_data *data, const pa_sample_spec *spec);
void pa_source_new_data_set_channel_map(pa_source_new_data *data, const pa_channel_map *map);
void pa_source_new_data_set_volume(pa_source_new_data *data, const pa_cvolume *volume);
void pa_source_new_data_set_muted(pa_source_new_data *data, pa_bool_t mute);
void pa_source_new_data_done(pa_source_new_data *data);
/* To be called exclusively by the source driver, from main context */
pa_source* pa_source_new(
pa_core *core,
pa_source_new_data *data,
pa_source_flags_t flags);
void pa_source_put(pa_source *s);
void pa_source_unlink(pa_source *s);
void pa_source_set_description(pa_source *s, const char *description);
void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q);
void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p);
void pa_source_detach(pa_source *s);
void pa_source_attach(pa_source *s);
/* May be called by everyone, from main context */
pa_usec_t pa_source_get_latency(pa_source *s);
pa_usec_t pa_source_get_requested_latency(pa_source *s);
int pa_source_update_status(pa_source*s);
int pa_source_suspend(pa_source *s, pa_bool_t suspend);
int pa_source_suspend_all(pa_core *c, pa_bool_t suspend);
void pa_source_set_volume(pa_source *source, const pa_cvolume *volume);
const pa_cvolume *pa_source_get_volume(pa_source *source);
void pa_source_set_mute(pa_source *source, pa_bool_t mute);
pa_bool_t pa_source_get_mute(pa_source *source);
unsigned pa_source_linked_by(pa_source *s); /* Number of connected streams */
unsigned pa_source_used_by(pa_source *s); /* Number of connected streams that are not corked */
#define pa_source_get_state(s) ((pa_source_state_t) (s)->state)
/* To be called exclusively by the source driver, from IO context */
void pa_source_post(pa_source*s, const pa_memchunk *b);
void pa_source_process_rewind(pa_source *s, size_t nbytes);
int pa_source_process_msg(pa_msgobject *o, int code, void *userdata, int64_t, pa_memchunk *chunk);
void pa_source_attach_within_thread(pa_source *s);
void pa_source_detach_within_thread(pa_source *s);
pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s);
void pa_source_set_max_rewind(pa_source *s, size_t max_rewind);
/* To be called exclusively by source output drivers, from IO context */
void pa_source_invalidate_requested_latency(pa_source *s);
#endif
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