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#ifndef fooalsautilhfoo
#define fooalsautilhfoo
/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#include <asoundlib.h>
#include <pulse/sample.h>
#include <pulse/volume.h>
#include <pulse/mainloop-api.h>
#include <pulse/channelmap.h>
#include <pulse/proplist.h>
#include <pulsecore/rtpoll.h>
typedef struct pa_alsa_fdlist pa_alsa_fdlist;
struct pa_alsa_fdlist *pa_alsa_fdlist_new(void);
void pa_alsa_fdlist_free(struct pa_alsa_fdlist *fdl);
int pa_alsa_fdlist_set_mixer(struct pa_alsa_fdlist *fdl, snd_mixer_t *mixer_handle, pa_mainloop_api* m);
int pa_alsa_set_hw_params(
snd_pcm_t *pcm_handle,
pa_sample_spec *ss,
uint32_t *periods,
snd_pcm_uframes_t *period_size,
snd_pcm_uframes_t tsched_size,
pa_bool_t *use_mmap,
pa_bool_t *use_tsched,
pa_bool_t require_exact_channel_number);
int pa_alsa_set_sw_params(snd_pcm_t *pcm, snd_pcm_uframes_t avail_min);
int pa_alsa_prepare_mixer(snd_mixer_t *mixer, const char *dev);
snd_mixer_elem_t *pa_alsa_find_elem(snd_mixer_t *mixer, const char *name, const char *fallback, pa_bool_t playback);
typedef struct pa_alsa_profile_info {
pa_channel_map map;
const char *alsa_name;
const char *description;
const char *name;
unsigned priority;
} pa_alsa_profile_info;
/* Picks a working profile based on the specified ss/map */
snd_pcm_t *pa_alsa_open_by_device_id_auto(
const char *dev_id,
char **dev,
pa_sample_spec *ss,
pa_channel_map* map,
int mode,
uint32_t *nfrags,
snd_pcm_uframes_t *period_size,
snd_pcm_uframes_t tsched_size,
pa_bool_t *use_mmap,
pa_bool_t *use_tsched,
const pa_alsa_profile_info **profile);
/* Uses the specified profile */
snd_pcm_t *pa_alsa_open_by_device_id_profile(
const char *dev_id,
char **dev,
pa_sample_spec *ss,
pa_channel_map* map,
int mode,
uint32_t *nfrags,
snd_pcm_uframes_t *period_size,
snd_pcm_uframes_t tsched_size,
pa_bool_t *use_mmap,
pa_bool_t *use_tsched,
const pa_alsa_profile_info *profile);
/* Opens the explicit ALSA device */
snd_pcm_t *pa_alsa_open_by_device_string(
const char *device,
char **dev,
pa_sample_spec *ss,
pa_channel_map* map,
int mode,
uint32_t *nfrags,
snd_pcm_uframes_t *period_size,
snd_pcm_uframes_t tsched_size,
pa_bool_t *use_mmap,
pa_bool_t *use_tsched,
pa_bool_t require_exact_channel_number);
int pa_alsa_probe_profiles(
const char *dev_id,
const pa_sample_spec *ss,
void (*cb)(const pa_alsa_profile_info *sink, const pa_alsa_profile_info *source, void *userdata),
void *userdata);
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);
void pa_alsa_dump(snd_pcm_t *pcm);
void pa_alsa_dump_status(snd_pcm_t *pcm);
void pa_alsa_redirect_errors_inc(void);
void pa_alsa_redirect_errors_dec(void);
void pa_alsa_init_proplist_pcm(pa_proplist *p, snd_pcm_info_t *pcm_info);
void pa_alsa_init_proplist_card(pa_proplist *p, int card);
int pa_alsa_recover_from_poll(snd_pcm_t *pcm, int revents);
pa_rtpoll_item* pa_alsa_build_pollfd(snd_pcm_t *pcm, pa_rtpoll *rtpoll);
snd_pcm_sframes_t pa_alsa_safe_avail_update(snd_pcm_t *pcm, size_t hwbuf_size, const pa_sample_spec *ss);
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);
#endif
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