1
#ifndef fooalsautilhfoo
2
#define fooalsautilhfoo
5
This file is part of PulseAudio.
7
Copyright 2004-2006 Lennart Poettering
8
Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
10
PulseAudio is free software; you can redistribute it and/or modify
11
it under the terms of the GNU Lesser General Public License as published
12
by the Free Software Foundation; either version 2 of the License,
13
or (at your option) any later version.
15
PulseAudio is distributed in the hope that it will be useful, but
16
WITHOUT ANY WARRANTY; without even the implied warranty of
17
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18
General Public License for more details.
20
You should have received a copy of the GNU Lesser General Public License
21
along with PulseAudio; if not, write to the Free Software
22
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
26
#include <asoundlib.h>
28
#include <pulse/sample.h>
29
#include <pulse/volume.h>
30
#include <pulse/mainloop-api.h>
31
#include <pulse/channelmap.h>
32
#include <pulse/proplist.h>
34
#include <pulsecore/rtpoll.h>
36
typedef struct pa_alsa_fdlist pa_alsa_fdlist;
38
struct pa_alsa_fdlist *pa_alsa_fdlist_new(void);
39
void pa_alsa_fdlist_free(struct pa_alsa_fdlist *fdl);
40
int pa_alsa_fdlist_set_mixer(struct pa_alsa_fdlist *fdl, snd_mixer_t *mixer_handle, pa_mainloop_api* m);
42
int pa_alsa_set_hw_params(
43
snd_pcm_t *pcm_handle,
46
snd_pcm_uframes_t *period_size,
47
snd_pcm_uframes_t tsched_size,
49
pa_bool_t *use_tsched,
50
pa_bool_t require_exact_channel_number);
52
int pa_alsa_set_sw_params(snd_pcm_t *pcm, snd_pcm_uframes_t avail_min);
54
int pa_alsa_prepare_mixer(snd_mixer_t *mixer, const char *dev);
55
snd_mixer_elem_t *pa_alsa_find_elem(snd_mixer_t *mixer, const char *name, const char *fallback);
57
snd_pcm_t *pa_alsa_open_by_device_id(
64
snd_pcm_uframes_t *period_size,
65
snd_pcm_uframes_t tsched_size,
67
pa_bool_t *use_tsched);
69
snd_pcm_t *pa_alsa_open_by_device_string(
76
snd_pcm_uframes_t *period_size,
77
snd_pcm_uframes_t tsched_size,
79
pa_bool_t *use_tsched);
81
int pa_alsa_calc_mixer_map(snd_mixer_elem_t *elem, const pa_channel_map *channel_map, snd_mixer_selem_channel_id_t mixer_map[], pa_bool_t playback);
83
void pa_alsa_dump(snd_pcm_t *pcm);
84
void pa_alsa_dump_status(snd_pcm_t *pcm);
86
void pa_alsa_redirect_errors_inc(void);
87
void pa_alsa_redirect_errors_dec(void);
89
void pa_alsa_init_proplist(pa_proplist *p, snd_pcm_info_t *pcm_info);
91
int pa_alsa_recover_from_poll(snd_pcm_t *pcm, int revents);
93
pa_rtpoll_item* pa_alsa_build_pollfd(snd_pcm_t *pcm, pa_rtpoll *rtpoll);
95
snd_pcm_sframes_t pa_alsa_safe_avail_update(snd_pcm_t *pcm, size_t hwbuf_size, const pa_sample_spec *ss);
96
int pa_alsa_safe_mmap_begin(snd_pcm_t *pcm, const snd_pcm_channel_area_t **areas, snd_pcm_uframes_t *offset, snd_pcm_uframes_t *frames, size_t hwbuf_size, const pa_sample_spec *ss);