code.delx.au - pulseaudio/blob - src/polypcore/sink.h

   1 #ifndef foosinkhfoo
   2 #define foosinkhfoo
   3
   4 /* $Id$ */
   5
   6 /***
   7   This file is part of polypaudio.
   8
   9   polypaudio 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   polypaudio 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 polypaudio; if not, write to the Free Software
  21   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22   USA.
  23 ***/
  24
  25 #include <inttypes.h>
  26
  27 typedef struct pa_sink pa_sink;
  28
  29 #include <polyp/sample.h>
  30 #include <polyp/channelmap.h>
  31 #include <polyp/volume.h>
  32 #include <polypcore/core.h>
  33 #include <polypcore/idxset.h>
  34 #include <polypcore/source.h>
  35 #include <polypcore/module.h>
  36
  37 #define PA_MAX_INPUTS_PER_SINK 6
  38
  39 typedef enum pa_sink_state {
  40     PA_SINK_RUNNING,
  41     PA_SINK_DISCONNECTED
  42 } pa_sink_state_t;
  43
  44 typedef enum pa_mixer {
  45     PA_MIXER_SOFTWARE,
  46     PA_MIXER_HARDWARE
  47 } pa_mixer_t;
  48
  49 struct pa_sink {
  50     int ref;
  51     uint32_t index;
  52     pa_core *core;
  53     pa_sink_state_t state;
  54
  55     char *name, *description, *driver;
  56     pa_module *owner;
  57
  58     pa_sample_spec sample_spec;
  59     pa_channel_map channel_map;
  60
  61     pa_idxset *inputs;
  62     pa_source *monitor_source;
  63
  64     pa_cvolume hw_volume, sw_volume;
  65
  66     void (*notify)(pa_sink*sink);
  67     pa_usec_t (*get_latency)(pa_sink *s);
  68     int (*set_hw_volume)(pa_sink *s);
  69     int (*get_hw_volume)(pa_sink *s);
  70
  71     void *userdata;
  72 };
  73
  74 pa_sink* pa_sink_new(
  75     pa_core *core,
  76     const char *driver,
  77     const char *name,
  78     int namereg_fail,
  79     const pa_sample_spec *spec,
  80     const pa_channel_map *map);
  81
  82 void pa_sink_disconnect(pa_sink* s);
  83 void pa_sink_unref(pa_sink*s);
  84 pa_sink* pa_sink_ref(pa_sink *s);
  85
  86 int pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result);
  87 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result);
  88 int pa_sink_render_into(pa_sink*s, pa_memchunk *target);
  89 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target);
  90
  91 pa_usec_t pa_sink_get_latency(pa_sink *s);
  92
  93 void pa_sink_notify(pa_sink*s);
  94
  95 void pa_sink_set_owner(pa_sink *sink, pa_module *m);
  96
  97 void pa_sink_set_volume(pa_sink *sink, pa_mixer_t m, const pa_cvolume *volume);
  98 const pa_cvolume *pa_sink_get_volume(pa_sink *sink, pa_mixer_t m);
  99
 100 #endif