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 struct 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 "typeid.h"
  35
  36 #define PA_MAX_OUTPUTS_PER_SOURCE 16
  37
  38 enum pa_source_state {
  39     PA_SOURCE_RUNNING,
  40     PA_SOURCE_DISCONNECTED
  41 };
  42
  43 struct pa_source {
  44     int ref;
  45     enum pa_source_state state;
  46
  47     uint32_t index;
  48     pa_typeid_t typeid;
  49
  50     char *name, *description;
  51     struct pa_module *owner;
  52     struct pa_core *core;
  53     struct pa_sample_spec sample_spec;
  54     struct pa_idxset *outputs;
  55     struct pa_sink *monitor_of;
  56
  57     void (*notify)(struct pa_source*source);
  58     pa_usec_t (*get_latency)(struct pa_source *s);
  59     void *userdata;
  60 };
  61
  62 struct pa_source* pa_source_new(struct pa_core *core, pa_typeid_t typeid, const char *name, int fail, const struct pa_sample_spec *spec);
  63 void pa_source_disconnect(struct pa_source *s);
  64 void pa_source_unref(struct pa_source *s);
  65 struct pa_source* pa_source_ref(struct pa_source *c);
  66
  67 /* Pass a new memory block to all output streams */
  68 void pa_source_post(struct pa_source*s, const struct pa_memchunk *b);
  69
  70 void pa_source_notify(struct pa_source *s);
  71
  72 void pa_source_set_owner(struct pa_source *s, struct pa_module *m);
  73
  74 pa_usec_t pa_source_get_latency(struct pa_source *s);
  75
  76 #endif