code.delx.au - pulseaudio/blob - polyp/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 #include "sink.h"
  28 #include "sample.h"
  29 #include "memblockq.h"
  30 #include "resampler.h"
  31 #include "module.h"
  32 #include "client.h"
  33
  34 enum pa_sink_input_state {
  35     PA_SINK_INPUT_RUNNING,
  36     PA_SINK_INPUT_CORKED,
  37     PA_SINK_INPUT_DISCONNECTED
  38 };
  39
  40 struct pa_sink_input {
  41     int ref;
  42     enum pa_sink_input_state state;
  43
  44     uint32_t index;
  45
  46     char *name;
  47     struct pa_module *owner;
  48     struct pa_client *client;
  49     struct pa_sink *sink;
  50     struct pa_sample_spec sample_spec;
  51     uint32_t volume;
  52
  53     int (*peek) (struct pa_sink_input *i, struct pa_memchunk *chunk);
  54     void (*drop) (struct pa_sink_input *i, const struct pa_memchunk *chunk, size_t length);
  55     void (*kill) (struct pa_sink_input *i);
  56     pa_usec_t (*get_latency) (struct pa_sink_input *i);
  57     void (*underrun) (struct pa_sink_input *i);
  58
  59     void *userdata;
  60
  61     int playing;
  62
  63     struct pa_memchunk resampled_chunk;
  64     struct pa_resampler *resampler;
  65 };
  66
  67 struct pa_sink_input* pa_sink_input_new(struct pa_sink *s, const char *name, const struct pa_sample_spec *spec, int variable_rate, int resample_method);
  68 void pa_sink_input_unref(struct pa_sink_input* i);
  69 struct pa_sink_input* pa_sink_input_ref(struct pa_sink_input* i);
  70
  71 /* To be called by the implementing module only */
  72 void pa_sink_input_disconnect(struct pa_sink_input* i);
  73
  74 /* External code may request disconnection with this funcion */
  75 void pa_sink_input_kill(struct pa_sink_input*i);
  76
  77 pa_usec_t pa_sink_input_get_latency(struct pa_sink_input *i);
  78
  79 int pa_sink_input_peek(struct pa_sink_input *i, struct pa_memchunk *chunk);
  80 void pa_sink_input_drop(struct pa_sink_input *i, const struct pa_memchunk *chunk, size_t length);
  81
  82 void pa_sink_input_set_volume(struct pa_sink_input *i, pa_volume_t volume);
  83
  84 void pa_sink_input_cork(struct pa_sink_input *i, int b);
  85
  86 void pa_sink_input_set_rate(struct pa_sink_input *i, uint32_t rate);
  87
  88 void pa_sink_input_set_name(struct pa_sink_input *i, const char *name);
  89
  90 #endif