alsa/0008-conf-pcm-dmix-add-CHANNELS-argument.patch

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From 3c199a0d199f0fae78c9c1b19c11878a6134b3a8 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Wed, 13 Mar 2019 10:45:35 +0100
Subject: [PATCH 08/14] conf: pcm dmix - add CHANNELS argument
It seems that some audio devices do use only mono audio for some
applications (RPi).
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
src/conf/alsa.conf | 1 +
src/conf/pcm/dmix.conf | 10 +++++++++-
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/src/conf/alsa.conf b/src/conf/alsa.conf
index bb00ff409cd9..099805864788 100644
--- a/src/conf/alsa.conf
+++ b/src/conf/alsa.conf
@@ -70,6 +70,7 @@ defaults.pcm.ipc_key 5678293
defaults.pcm.ipc_gid audio
defaults.pcm.ipc_perm 0660
defaults.pcm.dmix.max_periods 0
+defaults.pcm.dmix.channels 2
defaults.pcm.dmix.rate 48000
defaults.pcm.dmix.format "unchanged"
defaults.pcm.dmix.card defaults.pcm.card
diff --git a/src/conf/pcm/dmix.conf b/src/conf/pcm/dmix.conf
index 7d0aa0158c42..7fa5c8b2e20a 100644
--- a/src/conf/pcm/dmix.conf
+++ b/src/conf/pcm/dmix.conf
@@ -3,7 +3,7 @@
#
pcm.!dmix {
- @args [ CARD DEV SUBDEV FORMAT RATE ]
+ @args [ CARD DEV SUBDEV FORMAT RATE CHANNELS ]
@args.CARD {
type string
default {
@@ -36,6 +36,13 @@ pcm.!dmix {
name defaults.pcm.dmix.rate
}
}
+ @args.CHANNELS {
+ type integer
+ default {
+ @func refer
+ name defaults.pcm.dmix.channels
+ }
+ }
type dmix
ipc_key {
@func refer
@@ -58,6 +65,7 @@ pcm.!dmix {
}
format $FORMAT
rate $RATE
+ channels $CHANNELS
period_size {
@func refer
name {
--
2.16.4