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

   1 #ifndef foosourceoutputhfoo
   2 #define foosourceoutputhfoo
   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 #include <inttypes.h>
  26
  27 typedef struct pa_source_output pa_source_output;
  28
  29 #include <pulse/sample.h>
  30 #include <pulsecore/source.h>
  31 #include <pulsecore/memblockq.h>
  32 #include <pulsecore/resampler.h>
  33 #include <pulsecore/module.h>
  34 #include <pulsecore/client.h>
  35
  36 typedef enum {
  37     PA_SOURCE_OUTPUT_RUNNING,
  38     PA_SOURCE_OUTPUT_CORKED,
  39     PA_SOURCE_OUTPUT_DISCONNECTED
  40 } pa_source_output_state_t;
  41
  42 typedef enum pa_source_output_flags {
  43     PA_SOURCE_OUTPUT_NO_HOOKS = 1
  44 } pa_source_output_flags_t;
  45
  46 struct pa_source_output {
  47     int ref;
  48     uint32_t index;
  49     pa_source_output_state_t state;
  50
  51     char *name, *driver;                  /* may be NULL */
  52     pa_module *module;                    /* may be NULL */
  53
  54     pa_source *source;
  55     pa_client *client;                    /* may be NULL */
  56
  57     pa_sample_spec sample_spec;
  58     pa_channel_map channel_map;
  59
  60     void (*push)(pa_source_output *o, const pa_memchunk *chunk);
  61     void (*kill)(pa_source_output* o);              /* may be NULL */
  62     pa_usec_t (*get_latency) (pa_source_output *o); /* may be NULL */
  63
  64     pa_resampler* resampler;              /* may be NULL */
  65     pa_resample_method_t resample_method;
  66
  67     void *userdata;
  68 };
  69
  70 typedef struct pa_source_output_new_data {
  71     const char *name, *driver;
  72     pa_module *module;
  73     pa_client *client;
  74
  75     pa_source *source;
  76
  77     pa_sample_spec sample_spec;
  78     int sample_spec_is_set;
  79     pa_channel_map channel_map;
  80     int channel_map_is_set;
  81
  82     pa_resample_method_t resample_method;
  83 } pa_source_output_new_data;
  84
  85 pa_source_output_new_data* pa_source_output_new_data_init(pa_source_output_new_data *data);
  86 void pa_source_output_new_data_set_sample_spec(pa_source_output_new_data *data, const pa_sample_spec *spec);
  87 void pa_source_output_new_data_set_channel_map(pa_source_output_new_data *data, const pa_channel_map *map);
  88 void pa_source_output_new_data_set_volume(pa_source_output_new_data *data, const pa_cvolume *volume);
  89
  90 pa_source_output* pa_source_output_new(
  91         pa_core *core,
  92         pa_source_output_new_data *data,
  93         pa_source_output_flags_t flags);
  94
  95 void pa_source_output_unref(pa_source_output* o);
  96 pa_source_output* pa_source_output_ref(pa_source_output *o);
  97
  98 /* To be called by the implementing module only */
  99 void pa_source_output_disconnect(pa_source_output*o);
 100
 101 /* External code may request disconnection with this funcion */
 102 void pa_source_output_kill(pa_source_output*o);
 103
 104 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk);
 105
 106 void pa_source_output_set_name(pa_source_output *i, const char *name);
 107
 108 pa_usec_t pa_source_output_get_latency(pa_source_output *i);
 109
 110 void pa_source_output_cork(pa_source_output *i, int b);
 111
 112 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o);
 113
 114 int pa_source_output_move_to(pa_source_output *o, pa_source *dest);
 115
 116 #endif