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   Copyright 2004-2006 Lennart Poettering
  10
  11   PulseAudio is free software; you can redistribute it and/or modify
  12   it under the terms of the GNU Lesser General Public License as published
  13   by the Free Software Foundation; either version 2 of the License,
  14   or (at your option) any later version.
  15
  16   PulseAudio is distributed in the hope that it will be useful, but
  17   WITHOUT ANY WARRANTY; without even the implied warranty of
  18   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19   General Public License for more details.
  20
  21   You should have received a copy of the GNU Lesser General Public License
  22   along with PulseAudio; if not, write to the Free Software
  23   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  24   USA.
  25 ***/
  26
  27 #include <inttypes.h>
  28
  29 typedef struct pa_source_output pa_source_output;
  30
  31 #include <pulse/sample.h>
  32 #include <pulsecore/source.h>
  33 #include <pulsecore/memblockq.h>
  34 #include <pulsecore/resampler.h>
  35 #include <pulsecore/module.h>
  36 #include <pulsecore/client.h>
  37
  38 typedef enum {
  39     PA_SOURCE_OUTPUT_RUNNING,
  40     PA_SOURCE_OUTPUT_CORKED,
  41     PA_SOURCE_OUTPUT_DISCONNECTED
  42 } pa_source_output_state_t;
  43
  44 typedef enum pa_source_output_flags {
  45     PA_SOURCE_OUTPUT_NO_HOOKS = 1
  46 } pa_source_output_flags_t;
  47
  48 struct pa_source_output {
  49     int ref;
  50     uint32_t index;
  51     pa_source_output_state_t state;
  52
  53     char *name, *driver;                  /* may be NULL */
  54     pa_module *module;                    /* may be NULL */
  55
  56     pa_source *source;
  57     pa_client *client;                    /* may be NULL */
  58
  59     pa_sample_spec sample_spec;
  60     pa_channel_map channel_map;
  61
  62     void (*push)(pa_source_output *o, const pa_memchunk *chunk);
  63     void (*kill)(pa_source_output* o);              /* may be NULL */
  64     pa_usec_t (*get_latency) (pa_source_output *o); /* may be NULL */
  65
  66     pa_resampler* resampler;              /* may be NULL */
  67     pa_resample_method_t resample_method;
  68
  69     void *userdata;
  70 };
  71
  72 typedef struct pa_source_output_new_data {
  73     const char *name, *driver;
  74     pa_module *module;
  75     pa_client *client;
  76
  77     pa_source *source;
  78
  79     pa_sample_spec sample_spec;
  80     int sample_spec_is_set;
  81     pa_channel_map channel_map;
  82     int channel_map_is_set;
  83
  84     pa_resample_method_t resample_method;
  85 } pa_source_output_new_data;
  86
  87 pa_source_output_new_data* pa_source_output_new_data_init(pa_source_output_new_data *data);
  88 void pa_source_output_new_data_set_sample_spec(pa_source_output_new_data *data, const pa_sample_spec *spec);
  89 void pa_source_output_new_data_set_channel_map(pa_source_output_new_data *data, const pa_channel_map *map);
  90 void pa_source_output_new_data_set_volume(pa_source_output_new_data *data, const pa_cvolume *volume);
  91
  92 pa_source_output* pa_source_output_new(
  93         pa_core *core,
  94         pa_source_output_new_data *data,
  95         pa_source_output_flags_t flags);
  96
  97 void pa_source_output_unref(pa_source_output* o);
  98 pa_source_output* pa_source_output_ref(pa_source_output *o);
  99
 100 /* To be called by the implementing module only */
 101 void pa_source_output_disconnect(pa_source_output*o);
 102
 103 /* External code may request disconnection with this funcion */
 104 void pa_source_output_kill(pa_source_output*o);
 105
 106 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk);
 107
 108 void pa_source_output_set_name(pa_source_output *i, const char *name);
 109
 110 pa_usec_t pa_source_output_get_latency(pa_source_output *i);
 111
 112 void pa_source_output_cork(pa_source_output *i, int b);
 113
 114 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o);
 115
 116 int pa_source_output_move_to(pa_source_output *o, pa_source *dest);
 117
 118 #endif