code.delx.au - pulseaudio/blob - src/pulsecore/source.h

   1 #ifndef foosourcehfoo
   2 #define foosourcehfoo
   3
   4 /* $Id$ */
   5
   6 /***
   7   This file is part of PulseAudio.
   8
   9   Copyright 2004-2006 Lennart Poettering
  10   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
  11
  12   PulseAudio is free software; you can redistribute it and/or modify
  13   it under the terms of the GNU Lesser General Public License as published
  14   by the Free Software Foundation; either version 2 of the License,
  15   or (at your option) any later version.
  16
  17   PulseAudio is distributed in the hope that it will be useful, but
  18   WITHOUT ANY WARRANTY; without even the implied warranty of
  19   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  20   General Public License for more details.
  21
  22   You should have received a copy of the GNU Lesser General Public License
  23   along with PulseAudio; if not, write to the Free Software
  24   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  25   USA.
  26 ***/
  27
  28 typedef struct pa_source pa_source;
  29
  30 #include <inttypes.h>
  31
  32 #include <pulse/sample.h>
  33 #include <pulse/channelmap.h>
  34 #include <pulse/volume.h>
  35 #include <pulsecore/core-def.h>
  36 #include <pulsecore/core.h>
  37 #include <pulsecore/idxset.h>
  38 #include <pulsecore/memblock.h>
  39 #include <pulsecore/memchunk.h>
  40 #include <pulsecore/sink.h>
  41 #include <pulsecore/module.h>
  42
  43 #define PA_MAX_OUTPUTS_PER_SOURCE 16
  44
  45 typedef enum pa_source_state {
  46     PA_SOURCE_RUNNING,
  47     PA_SOURCE_DISCONNECTED
  48 } pa_source_state_t;
  49
  50 struct pa_source {
  51     int ref;
  52     uint32_t index;
  53     pa_core *core;
  54     pa_source_state_t state;
  55
  56     char *name;
  57     char *description, *driver;              /* may be NULL */
  58
  59     pa_module *owner;                        /* may be NULL */
  60
  61     pa_sample_spec sample_spec;
  62     pa_channel_map channel_map;
  63
  64     pa_idxset *outputs;
  65     pa_sink *monitor_of;                     /* may be NULL */
  66
  67     pa_cvolume hw_volume, sw_volume;
  68     int hw_muted, sw_muted;
  69
  70     int is_hardware;
  71
  72     void (*notify)(pa_source*source);        /* may be NULL */
  73     pa_usec_t (*get_latency)(pa_source *s);  /* dito */
  74     int (*set_hw_volume)(pa_source *s);      /* dito */
  75     int (*get_hw_volume)(pa_source *s);      /* dito */
  76     int (*set_hw_mute)(pa_source *s);        /* dito */
  77     int (*get_hw_mute)(pa_source *s);        /* dito */
  78
  79     void *userdata;
  80 };
  81
  82 pa_source* pa_source_new(
  83     pa_core *core,
  84     const char *driver,
  85     const char *name,
  86     int namereg_fail,
  87     const pa_sample_spec *spec,
  88     const pa_channel_map *map);
  89
  90 void pa_source_disconnect(pa_source *s);
  91 void pa_source_unref(pa_source *s);
  92 pa_source* pa_source_ref(pa_source *c);
  93
  94 /* Pass a new memory block to all output streams */
  95 void pa_source_post(pa_source*s, const pa_memchunk *b);
  96
  97 void pa_source_notify(pa_source *s);
  98
  99 void pa_source_set_owner(pa_source *s, pa_module *m);
 100
 101 pa_usec_t pa_source_get_latency(pa_source *s);
 102
 103 void pa_source_set_volume(pa_source *source, pa_mixer_t m, const pa_cvolume *volume);
 104 const pa_cvolume *pa_source_get_volume(pa_source *source, pa_mixer_t m);
 105 void pa_source_set_mute(pa_source *source, pa_mixer_t m, int mute);
 106 int pa_source_get_mute(pa_source *source, pa_mixer_t m);
 107
 108 void pa_source_set_description(pa_source *s, const char *description);
 109
 110 unsigned pa_source_used_by(pa_source *s);
 111 #endif