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

   1 #ifndef foosinkinputhfoo
   2 #define foosinkinputhfoo
   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_input pa_sink_input;
  28
  29 #include "sink.h"
  30 #include <polyp/sample.h>
  31 #include "memblockq.h"
  32 #include "resampler.h"
  33 #include "module.h"
  34 #include "client.h"
  35
  36 typedef enum pa_sink_input_state {
  37     PA_SINK_INPUT_RUNNING,
  38     PA_SINK_INPUT_CORKED,
  39     PA_SINK_INPUT_DISCONNECTED
  40 } pa_sink_input_state_t;
  41
  42 struct pa_sink_input {
  43     int ref;
  44     uint32_t index;
  45     pa_sink_input_state_t state;
  46
  47     char *name, *driver;
  48     pa_module *owner;
  49
  50     pa_sink *sink;
  51     pa_client *client;
  52
  53     pa_sample_spec sample_spec;
  54     pa_channel_map channel_map;
  55
  56     pa_cvolume volume;
  57
  58     int (*peek) (pa_sink_input *i, pa_memchunk *chunk);
  59     void (*drop) (pa_sink_input *i, const pa_memchunk *chunk, size_t length);
  60     void (*kill) (pa_sink_input *i);
  61     pa_usec_t (*get_latency) (pa_sink_input *i);
  62     void (*underrun) (pa_sink_input *i);
  63
  64     void *userdata;
  65
  66     int playing;
  67
  68     pa_memchunk resampled_chunk;
  69     pa_resampler *resampler;
  70 };
  71
  72 pa_sink_input* pa_sink_input_new(
  73     pa_sink *s,
  74     const char *driver,
  75     const char *name,
  76     const pa_sample_spec *spec,
  77     const pa_channel_map *map,
  78     int variable_rate,
  79     int resample_method);
  80
  81 void pa_sink_input_unref(pa_sink_input* i);
  82 pa_sink_input* pa_sink_input_ref(pa_sink_input* i);
  83
  84 /* To be called by the implementing module only */
  85 void pa_sink_input_disconnect(pa_sink_input* i);
  86
  87 /* External code may request disconnection with this funcion */
  88 void pa_sink_input_kill(pa_sink_input*i);
  89
  90 pa_usec_t pa_sink_input_get_latency(pa_sink_input *i);
  91
  92 int pa_sink_input_peek(pa_sink_input *i, pa_memchunk *chunk, pa_cvolume *volume);
  93 void pa_sink_input_drop(pa_sink_input *i, const pa_memchunk *chunk, size_t length);
  94
  95 void pa_sink_input_set_volume(pa_sink_input *i, const pa_cvolume *volume);
  96 const pa_cvolume * pa_sink_input_get_volume(pa_sink_input *i);
  97
  98 void pa_sink_input_cork(pa_sink_input *i, int b);
  99
 100 void pa_sink_input_set_rate(pa_sink_input *i, uint32_t rate);
 101
 102 void pa_sink_input_set_name(pa_sink_input *i, const char *name);
 103
 104 pa_resample_method_t pa_sink_input_get_resample_method(pa_sink_input *i);
 105
 106 #endif