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#
# Author: Fulup Ar Foll
# Object: PCM hook type
#
# Test : Note: Jabra_USB=hw:v1340
# Check SoundCard speaker-test -Dhw:v1340 -c2 -twav
# Check MixerPCM speaker-test -DMyMixerPCM -c2 -twav
# Check HookPCM speaker-test -DMyNavigationHook -c2 -twav
# Check NavPCM speaker-test -DMyNavPCM -c2 -twav
# MultiMedia aplay -DDMyNavPCM /usr/share/sounds/alsa/test.wav
#
# Bug/Feature: when softvol control is initialised from plugin and not
# from AGL binding. At 1st run ctl has invalid TLV and cannot be
# use. Bypass Solution:
# * start audio-binder before playing sound (binding create control before softvol plugin)
# * run a dummy aplay -DMyNavPCM "" to get a clean control
#
# References: https://www.spinics.net/lists/alsa-devel/msg54235.html
# --------------------------------------------------------------------
# Mixer PCM allow to play multiple stream simultaneously
# ------------------------------------------------------
pcm.MyMixerPCM {
type dmix
ipc_key 1024
ipc_key_add_uid false
ipc_perm 0666 # mixing for all users
# Define target effective sound card (cannot be a plugin)
slave { pcm "hw:v1340" } #Jabra Solmate
# DMIX can only map two channels
bindings {
0 0
1 1
}
}
# Define a Hook_type with a private sharelib
# -------------------------------------------
pcm_hook_type.MyHookPlugin {
install "AlsaInstallHook"
lib "/home/fulup/Workspace/AGL-AppFW/audio-bindings-dev/build/Alsa-Plugin/Alsa-Policy-Hook/policy_hook_cb.so"
}
# Define a HookedPCM that point to Hook_type sharelib
# ----------------------------------------------------
pcm.MyNavigationHook {
type hooks
slave.pcm "MyMixerPCM"
# Defined used hook sharelib and provide arguments/config to install func
hooks.0 {
type "MyHookPlugin"
hook_args {
verbose true # print few log messages (default false);
# Every Call should return OK in order PCM to open (default timeout 100ms)
uri "ws://localhost:1234/api?token=audio-agent-token&uuid=audio-agent-session"
request {
# Request autorisation to write on navigation
RequestNavigation {
api "control"
verb "dispatch"
query "{'target':'navigation', 'args':{'device':'Jabra SOLEMATE v1.34.0'}}"
}
}
# map event reception to self generated signal
event {
pause 30
resume 31
stop 3
}
}
}
}
# If hardware does not support mixer emulate it with softvol
# -----------------------------------------------------------
pcm.MyMultimediaPCM {
type softvol
# Point Slave on HOOK for policies control
slave.pcm "MyNavigationHook"
# resolution=HAL(valMax+1) (default=256)
resolution 256
# name should match with HAL but do not set card=xx
control.name "Playback Navigation"
# Make this plugin visible from aplay -L
hint {
show on
description "Navigation SolftVol PCM"
}
}
# If hardware does not support mixer emulate it with softvol
# -----------------------------------------------------------
pcm.MyNavPCM {
type softvol
# Point Slave on HOOK for policies control
slave.pcm "MyNavigationHook"
# resolution=HAL(valMax+1) (default=256)
resolution 256
# name should match with HAL but do not set card=xx
control.name "Playback Navigation"
# Make this plugin visible from aplay -L
hint {
show on
description "Navigation SolftVol PCM"
}
}
# If hardware does not support mixer emulate it with softvol
# -----------------------------------------------------------
pcm.MyAlarmPCM {
type softvol
# Point Slave on HOOK for policies control
slave.pcm "MyNavigationHook"
# resolution=HAL(valMax+1) (default=256)
resolution 256
# name should match with HAL but do not set card=xx
control.name "Playback Navigation"
# Make this plugin visible from aplay -L
hint {
show on
description "Navigation SolftVol PCM"
}
}
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