mirror of
https://github.com/alsa-project/alsa-lib.git
synced 2025-11-26 07:00:11 -05:00
09879a4bb5
Some broken applications like Audacious don't set any timing parameters. While the alsa-lib behaviour is to select the smallest period size and biggest buffer size, the result is the generation of thousands interrupts per second. The default value in alsa.conf is 5000usec. Signed-off-by: Jaroslav Kysela <perex@perex.cz>
608 lines
8.8 KiB
Text
608 lines
8.8 KiB
Text
#
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# ALSA library configuration file
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#
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# pre-load the configuration files
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@hooks [
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{
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func load
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files [
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"/etc/asound.conf"
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"~/.asoundrc"
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]
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errors false
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}
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]
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# load card-specific configuration files (on request)
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cards.@hooks [
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{
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func load
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files [
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{
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@func concat
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strings [
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{ @func datadir }
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"/cards/aliases.conf"
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]
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}
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]
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}
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{
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func load_for_all_cards
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files [
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{
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@func concat
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strings [
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{ @func datadir }
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"/cards/"
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{ @func private_string }
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".conf"
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]
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}
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]
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errors false
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}
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]
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#
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# defaults
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#
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# show all name hints also for definitions without hint {} section
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defaults.namehint.showall off
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# show just basic name hints
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defaults.namehint.basic on
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# show extended name hints
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defaults.namehint.extended off
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#
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defaults.ctl.card 0
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defaults.pcm.card 0
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defaults.pcm.device 0
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defaults.pcm.subdevice -1
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defaults.pcm.nonblock 1
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defaults.pcm.minperiodtime 5000 # in us
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defaults.pcm.ipc_key 5678293
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defaults.pcm.ipc_gid audio
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defaults.pcm.ipc_perm 0660
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defaults.pcm.dmix.max_periods 0
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defaults.pcm.dmix.rate 48000
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defaults.pcm.dmix.format "unchanged"
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defaults.pcm.dmix.card defaults.pcm.card
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defaults.pcm.dmix.device defaults.pcm.device
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defaults.pcm.dsnoop.card defaults.pcm.card
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defaults.pcm.dsnoop.device defaults.pcm.device
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defaults.pcm.front.card defaults.pcm.card
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defaults.pcm.front.device defaults.pcm.device
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defaults.pcm.rear.card defaults.pcm.card
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defaults.pcm.rear.device defaults.pcm.device
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defaults.pcm.center_lfe.card defaults.pcm.card
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defaults.pcm.center_lfe.device defaults.pcm.device
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defaults.pcm.side.card defaults.pcm.card
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defaults.pcm.side.device defaults.pcm.device
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defaults.pcm.surround40.card defaults.pcm.card
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defaults.pcm.surround40.device defaults.pcm.device
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defaults.pcm.surround41.card defaults.pcm.card
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defaults.pcm.surround41.device defaults.pcm.device
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defaults.pcm.surround50.card defaults.pcm.card
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defaults.pcm.surround50.device defaults.pcm.device
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defaults.pcm.surround51.card defaults.pcm.card
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defaults.pcm.surround51.device defaults.pcm.device
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defaults.pcm.surround71.card defaults.pcm.card
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defaults.pcm.surround71.device defaults.pcm.device
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defaults.pcm.iec958.card defaults.pcm.card
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defaults.pcm.iec958.device defaults.pcm.device
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defaults.pcm.modem.card defaults.pcm.card
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defaults.pcm.modem.device defaults.pcm.device
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# truncate files via file or tee PCM
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defaults.pcm.file_format "raw"
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defaults.pcm.file_truncate true
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defaults.rawmidi.card 0
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defaults.rawmidi.device 0
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defaults.rawmidi.subdevice -1
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defaults.hwdep.card 0
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defaults.hwdep.device 0
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defaults.timer.class 2
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defaults.timer.sclass 0
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defaults.timer.card 0
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defaults.timer.device 0
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defaults.timer.subdevice 0
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#
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# PCM interface
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#
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# redirect to load-on-demand extended pcm definitions
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pcm.cards cards.pcm
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pcm.default cards.pcm.default
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pcm.front cards.pcm.front
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pcm.rear cards.pcm.rear
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pcm.center_lfe cards.pcm.center_lfe
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pcm.side cards.pcm.side
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pcm.surround40 cards.pcm.surround40
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pcm.surround41 cards.pcm.surround41
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pcm.surround50 cards.pcm.surround50
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pcm.surround51 cards.pcm.surround51
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pcm.surround71 cards.pcm.surround71
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pcm.iec958 cards.pcm.iec958
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pcm.spdif iec958
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pcm.hdmi cards.pcm.hdmi
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pcm.dmix cards.pcm.dmix
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pcm.dsnoop cards.pcm.dsnoop
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pcm.modem cards.pcm.modem
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pcm.phoneline cards.pcm.phoneline
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pcm.hw {
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@args [ CARD DEV SUBDEV ]
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@args.CARD {
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type string
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default {
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@func getenv
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vars [
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ALSA_PCM_CARD
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ALSA_CARD
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]
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default {
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@func refer
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name defaults.pcm.card
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}
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}
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}
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@args.DEV {
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type integer
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default {
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@func igetenv
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vars [
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ALSA_PCM_DEVICE
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]
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default {
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@func refer
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name defaults.pcm.device
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}
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}
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}
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@args.SUBDEV {
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type integer
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default {
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@func refer
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name defaults.pcm.subdevice
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}
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}
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type hw
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card $CARD
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device $DEV
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subdevice $SUBDEV
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hint {
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show {
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@func refer
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name defaults.namehint.extended
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}
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description "Direct hardware device without any conversions"
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}
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}
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pcm.plughw {
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@args [ CARD DEV SUBDEV ]
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@args.CARD {
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type string
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default {
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@func getenv
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vars [
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ALSA_PCM_CARD
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ALSA_CARD
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]
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default {
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@func refer
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name defaults.pcm.card
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}
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}
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}
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@args.DEV {
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type integer
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default {
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@func igetenv
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vars [
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ALSA_PCM_DEVICE
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]
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default {
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@func refer
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name defaults.pcm.device
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}
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}
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}
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@args.SUBDEV {
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type integer
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default {
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@func refer
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name defaults.pcm.subdevice
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}
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}
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type plug
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slave.pcm {
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type hw
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card $CARD
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device $DEV
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subdevice $SUBDEV
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}
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hint {
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show {
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@func refer
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name defaults.namehint.extended
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}
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description "Hardware device with all software conversions"
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}
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}
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pcm.plug {
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@args [ SLAVE ]
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@args.SLAVE {
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type string
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}
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type plug
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slave.pcm $SLAVE
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}
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pcm.shm {
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@args [ SOCKET PCM ]
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@args.SOCKET {
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type string
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}
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@args.PCM {
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type string
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}
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type shm
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server $SOCKET
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pcm $PCM
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}
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pcm.tee {
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@args [ SLAVE FILE FORMAT ]
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@args.SLAVE {
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type string
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}
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@args.FILE {
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type string
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}
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@args.FORMAT {
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type string
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default {
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@func refer
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name defaults.pcm.file_format
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}
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}
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type file
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slave.pcm $SLAVE
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file $FILE
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format $FORMAT
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truncate {
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@func refer
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name defaults.pcm.file_truncate
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}
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}
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pcm.file {
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@args [ FILE FORMAT ]
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@args.FILE {
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type string
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}
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@args.FORMAT {
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type string
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default {
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@func refer
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name defaults.pcm.file_format
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}
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}
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type file
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slave.pcm null
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file $FILE
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format $FORMAT
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truncate {
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@func refer
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name defaults.pcm.file_truncate
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}
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}
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pcm.null {
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type null
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hint {
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show {
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@func refer
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name defaults.namehint.basic
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}
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description "Discard all samples (playback) or generate zero samples (capture)"
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}
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}
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#
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# Control interface
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#
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ctl.default {
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type hw
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card {
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@func getenv
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vars [
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ALSA_CTL_CARD
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ALSA_CARD
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]
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default {
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@func refer
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name defaults.ctl.card
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}
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}
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}
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ctl.hw {
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@args [ CARD ]
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@args.CARD {
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type string
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default {
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@func getenv
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vars [
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ALSA_CTL_CARD
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ALSA_CARD
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]
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default {
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@func refer
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name defaults.ctl.card
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}
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}
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}
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type hw
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card $CARD
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}
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ctl.shm {
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@args [ SOCKET CTL ]
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@args.SOCKET {
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type string
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}
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@args.CTL {
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type string
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}
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type shm
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server $SOCKET
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ctl $CTL
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}
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#
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# RawMidi interface
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#
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rawmidi.default {
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type hw
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card {
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@func getenv
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vars [
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ALSA_RAWMIDI_CARD
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ALSA_CARD
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]
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default {
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@func refer
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name defaults.rawmidi.card
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}
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}
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device {
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@func igetenv
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vars [
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ALSA_RAWMIDI_DEVICE
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]
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default {
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@func refer
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name defaults.rawmidi.device
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}
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}
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}
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rawmidi.hw {
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@args [ CARD DEV SUBDEV ]
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@args.CARD {
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type string
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default {
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@func getenv
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vars [
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ALSA_RAWMIDI_CARD
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ALSA_CARD
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]
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default {
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@func refer
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name defaults.rawmidi.card
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}
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}
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}
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@args.DEV {
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type integer
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default {
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@func igetenv
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vars [
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ALSA_RAWMIDI_DEVICE
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]
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default {
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@func refer
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name defaults.rawmidi.device
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}
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}
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}
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@args.SUBDEV {
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type integer
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default -1
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}
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type hw
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card $CARD
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device $DEV
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subdevice $SUBDEV
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hint {
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description "Direct rawmidi driver device"
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device $DEV
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}
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}
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rawmidi.virtual {
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@args [ MERGE ]
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@args.MERGE {
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type string
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default 1
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}
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type virtual
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merge $MERGE
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}
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#
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# Sequencer interface
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#
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seq.default {
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type hw
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}
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seq.hw {
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type hw
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}
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#
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# HwDep interface
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#
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hwdep.default {
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type hw
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card {
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@func getenv
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vars [
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ALSA_HWDEP_CARD
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ALSA_CARD
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]
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default {
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@func refer
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name defaults.hwdep.card
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}
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}
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device {
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@func igetenv
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vars [
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ALSA_HWDEP_DEVICE
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]
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default {
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@func refer
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name defaults.hwdep.device
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}
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}
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}
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hwdep.hw {
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@args [ CARD DEV ]
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@args.CARD {
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type string
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default {
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@func getenv
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vars [
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ALSA_HWDEP_CARD
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ALSA_CARD
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]
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default {
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@func refer
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name defaults.hwdep.card
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}
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}
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}
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@args.DEV {
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type integer
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default {
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@func igetenv
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vars [
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ALSA_HWDEP_DEVICE
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]
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default {
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@func refer
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name defaults.hwdep.device
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}
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}
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}
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type hw
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card $CARD
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device $DEV
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}
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#
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# Timer interface
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#
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timer_query.default {
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type hw
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}
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timer_query.hw {
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type hw
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}
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timer.default {
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type hw
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class {
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@func refer
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name defaults.timer.class
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}
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sclass {
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@func refer
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name defaults.timer.sclass
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}
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card {
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@func refer
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name defaults.timer.card
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}
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device {
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@func refer
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name defaults.timer.device
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}
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subdevice {
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@func refer
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name defaults.timer.subdevice
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}
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hint.description "Default direct hardware timer device"
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}
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timer.hw {
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@args [ CLASS SCLASS CARD DEV SUBDEV ]
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@args.CLASS {
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type integer
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default {
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@func refer
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name defaults.timer.class
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}
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}
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@args.SCLASS {
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type integer
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default {
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@func refer
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name defaults.timer.sclass
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}
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}
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@args.CARD {
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type string
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default {
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@func refer
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name defaults.timer.card
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}
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}
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@args.DEV {
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type integer
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default {
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@func refer
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name defaults.timer.device
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}
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}
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@args.SUBDEV {
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type integer
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default {
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@func refer
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name defaults.timer.subdevice
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}
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}
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type hw
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class $CLASS
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sclass $SCLASS
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card $CARD
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device $DEV
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subdevice $SUBDEV
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}
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