code.delx.au - pulseaudio/blob - polyp/source.h

   1 #ifndef foosourcehfoo
   2 #define foosourcehfoo
   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 typedef struct pa_source pa_source;
  26
  27 #include <inttypes.h>
  28 #include "core.h"
  29 #include "sample.h"
  30 #include "idxset.h"
  31 #include "memblock.h"
  32 #include "memchunk.h"
  33 #include "sink.h"
  34 #include "channelmap.h"
  35 #include "module.h"
  36
  37 #define PA_MAX_OUTPUTS_PER_SOURCE 16
  38
  39 typedef enum pa_source_state {
  40     PA_SOURCE_RUNNING,
  41     PA_SOURCE_DISCONNECTED
  42 } pa_source_state_t;
  43
  44 struct pa_source {
  45     int ref;
  46     uint32_t index;
  47     pa_core *core;
  48     pa_source_state_t state;
  49
  50     char *name, *description, *driver;
  51     pa_module *owner;
  52
  53     pa_sample_spec sample_spec;
  54     pa_channel_map channel_map;
  55
  56     pa_idxset *outputs;
  57     pa_sink *monitor_of;
  58
  59     void (*notify)(pa_source*source);
  60     pa_usec_t (*get_latency)(pa_source *s);
  61
  62     void *userdata;
  63 };
  64
  65 pa_source* pa_source_new(
  66     pa_core *core,
  67     const char *driver,
  68     const char *name,
  69     int namereg_fail,
  70     const pa_sample_spec *spec,
  71     const pa_channel_map *map);
  72
  73 void pa_source_disconnect(pa_source *s);
  74 void pa_source_unref(pa_source *s);
  75 pa_source* pa_source_ref(pa_source *c);
  76
  77 /* Pass a new memory block to all output streams */
  78 void pa_source_post(pa_source*s, const pa_memchunk *b);
  79
  80 void pa_source_notify(pa_source *s);
  81
  82 void pa_source_set_owner(pa_source *s, pa_module *m);
  83
  84 pa_usec_t pa_source_get_latency(pa_source *s);
  85
  86 #endif