mirror of
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f33e1bc8c3
The alsa/acp code already supports getting a user-friendly monitor name
using the EDID-Like Data (ELD) information available from cards that follow
the Intel HDA specification.
This patch adds support for also parsing the SAD fields of the ELD, and
exposing the results as a "iec958.codecs.detected" property on the
corresponding node, which should make it possible to provide more
user-friendly configuration UIs and defaults.
The default value will take effect if the session manager does not set a
different value.
Brief example:
test@test:~/checkouts/pipewire$ pw-dump | grep -E "(iec958.codecs.detected|iec958.codecs)\":"
"iec958.codecs": "[\"PCM\",\"AC3\",\"EAC3\",\"TrueHD\"]",
"iec958.codecs.detected": "[\"PCM\",\"AC3\",\"EAC3\",\"TrueHD\"]",
<after powering on my receiver>
test@test:~/checkouts/pipewire$ pw-dump | grep -E "(iec958.codecs.detected|iec958.codecs)\":"
"iec958.codecs": "[\"PCM\",\"DTS\",\"AC3\",\"EAC3\",\"TrueHD\",\"DTS-HD\"]",
"iec958.codecs.detected": "[\"PCM\",\"DTS\",\"AC3\",\"EAC3\",\"TrueHD\",\"DTS-HD\"]",
Big thanks to Pauli Virtanen <pav@iki.fi>, who also wrote large paths of the
code for this patch.
183 lines
7.5 KiB
C
183 lines
7.5 KiB
C
#ifndef fooalsautilhfoo
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#define fooalsautilhfoo
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/***
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This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdbool.h>
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#include <alsa/asoundlib.h>
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#include "compat.h"
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#include "alsa-mixer.h"
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enum {
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PA_ALSA_ERR_UNSPECIFIED = 1,
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PA_ALSA_ERR_UCM_OPEN = 1000,
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PA_ALSA_ERR_UCM_NO_VERB = 1001,
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PA_ALSA_ERR_UCM_LINKED = 1002
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};
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int pa_alsa_set_hw_params(
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snd_pcm_t *pcm_handle,
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pa_sample_spec *ss, /* modified at return */
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t *buffer_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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bool *use_mmap, /* modified at return */
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bool *use_tsched, /* modified at return */
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bool require_exact_channel_number);
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int pa_alsa_set_sw_params(
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snd_pcm_t *pcm,
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snd_pcm_uframes_t avail_min,
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bool period_event);
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#if 0
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/* Picks a working mapping from the profile set based on the specified ss/map */
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snd_pcm_t *pa_alsa_open_by_device_id_auto(
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const char *dev_id,
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char **dev, /* modified at return */
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pa_sample_spec *ss, /* modified at return */
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pa_channel_map* map, /* modified at return */
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int mode,
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t *buffer_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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bool *use_mmap, /* modified at return */
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bool *use_tsched, /* modified at return */
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pa_sample_format_t **query_supported_formats, /* modified at return */
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unsigned int **query_supported_rates, /* modified at return */
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pa_alsa_profile_set *ps,
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pa_alsa_mapping **mapping); /* modified at return */
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#endif
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/* Uses the specified mapping */
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snd_pcm_t *pa_alsa_open_by_device_id_mapping(
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const char *dev_id,
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char **dev, /* modified at return */
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pa_sample_spec *ss, /* modified at return */
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pa_channel_map* map, /* modified at return */
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int mode,
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t *buffer_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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bool *use_mmap, /* modified at return */
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bool *use_tsched, /* modified at return */
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pa_sample_format_t **query_supported_formats, /* modified at return */
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unsigned int **query_supported_rates, /* modified at return */
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pa_alsa_mapping *mapping);
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/* Opens the explicit ALSA device */
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snd_pcm_t *pa_alsa_open_by_device_string(
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const char *dir,
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char **dev, /* modified at return */
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pa_sample_spec *ss, /* modified at return */
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pa_channel_map* map, /* modified at return */
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int mode,
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t *buffer_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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bool *use_mmap, /* modified at return */
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bool *use_tsched, /* modified at return */
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pa_sample_format_t **query_supported_formats, /* modified at return */
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unsigned int **query_supported_rates, /* modified at return */
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bool require_exact_channel_number);
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/* Opens the explicit ALSA device with a fallback list */
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snd_pcm_t *pa_alsa_open_by_template(
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char **template,
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const char *dev_id,
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char **dev, /* modified at return */
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pa_sample_spec *ss, /* modified at return */
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pa_channel_map* map, /* modified at return */
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int mode,
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t *buffer_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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bool *use_mmap, /* modified at return */
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bool *use_tsched, /* modified at return */
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pa_sample_format_t **query_supported_formats, /* modified at return */
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unsigned int **query_supported_rates, /* modified at return */
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bool require_exact_channel_number);
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#if 0
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void pa_alsa_dump(pa_log_level_t level, snd_pcm_t *pcm);
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void pa_alsa_dump_status(snd_pcm_t *pcm);
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#endif
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int pa_alsa_close(snd_pcm_t **pcm);
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void pa_alsa_refcnt_inc(void);
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void pa_alsa_refcnt_dec(void);
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void pa_alsa_init_proplist_pcm_info(pa_core *c, pa_proplist *p, snd_pcm_info_t *pcm_info);
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void pa_alsa_init_proplist_card(pa_core *c, pa_proplist *p, int card);
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void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_t *pcm);
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void pa_alsa_init_proplist_ctl(pa_proplist *p, const char *name);
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bool pa_alsa_init_description(pa_proplist *p, pa_card *card);
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#if 0
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int pa_alsa_recover_from_poll(snd_pcm_t *pcm, int revents);
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pa_rtpoll_item* pa_alsa_build_pollfd(snd_pcm_t *pcm, pa_rtpoll *rtpoll);
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snd_pcm_sframes_t pa_alsa_safe_avail(snd_pcm_t *pcm, size_t hwbuf_size, const pa_sample_spec *ss);
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int pa_alsa_safe_delay(snd_pcm_t *pcm, snd_pcm_status_t *status, snd_pcm_sframes_t *delay, size_t hwbuf_size, const pa_sample_spec *ss, bool capture);
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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);
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#endif
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char *pa_alsa_get_driver_name(int card);
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char *pa_alsa_get_driver_name_by_pcm(snd_pcm_t *pcm);
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char *pa_alsa_get_reserve_name(const char *device);
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unsigned int *pa_alsa_get_supported_rates(snd_pcm_t *pcm, unsigned int fallback_rate);
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pa_sample_format_t *pa_alsa_get_supported_formats(snd_pcm_t *pcm, pa_sample_format_t fallback_format);
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bool pa_alsa_pcm_is_hw(snd_pcm_t *pcm);
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bool pa_alsa_pcm_is_modem(snd_pcm_t *pcm);
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const char* pa_alsa_strerror(int errnum);
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#if 0
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bool pa_alsa_may_tsched(bool want);
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#endif
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snd_mixer_elem_t *pa_alsa_mixer_find_card(snd_mixer_t *mixer, struct pa_alsa_mixer_id *alsa_id, unsigned int device);
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snd_mixer_elem_t *pa_alsa_mixer_find_pcm(snd_mixer_t *mixer, const char *name, unsigned int device);
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snd_mixer_t *pa_alsa_open_mixer(pa_hashmap *mixers, int alsa_card_index, bool probe);
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snd_mixer_t *pa_alsa_open_mixer_by_name(pa_hashmap *mixers, const char *dev, bool probe);
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snd_mixer_t *pa_alsa_open_mixer_for_pcm(pa_hashmap *mixers, snd_pcm_t *pcm, bool probe);
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#if 0
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void pa_alsa_mixer_set_fdlist(pa_hashmap *mixers, snd_mixer_t *mixer, pa_mainloop_api *ml);
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#endif
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void pa_alsa_mixer_free(pa_alsa_mixer *mixer);
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typedef struct pa_hdmi_eld pa_hdmi_eld;
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struct pa_hdmi_eld {
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char monitor_name[17];
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uint64_t iec958_codecs;
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};
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int pa_alsa_get_hdmi_eld(snd_hctl_elem_t *elem, pa_hdmi_eld *eld);
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#endif
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