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