audioconvert: disable upmix by default again

But instead ship config override files to enable it again.

The idea is that distros can make extra packages that can than be
installed to enable the upmixing.

Also ship a config file to enable more samplerates.

Fixes #3081

spa/plugins/audioconvert/audioconvert.c

@@ -2870,11 +2870,11 @@ impl_init(const struct spa_handle_factory *factory,
 	props_reset(&this->props);
 
 	this->mix.options = CHANNELMIX_OPTION_UPMIX | CHANNELMIX_OPTION_MIX_LFE;
-	this->mix.upmix = CHANNELMIX_UPMIX_PSD;
+	this->mix.upmix = CHANNELMIX_UPMIX_NONE;
 	this->mix.log = this->log;
-	this->mix.lfe_cutoff = 150.0f;
-	this->mix.fc_cutoff = 12000.0f;
-	this->mix.rear_delay = 12.0f;
+	this->mix.lfe_cutoff = 0.0f;
+	this->mix.fc_cutoff = 0.0f;
+	this->mix.rear_delay = 0.0f;
 	this->mix.widen = 0.0f;
 
 	for (i = 0; info && i < info->n_items; i++) {

src/daemon/client-rt.conf.d/20-upmix.conf.in

@@ -0,0 +1,8 @@
+# Enables upmixing
+stream.properties = {
+    channelmix.upmix      = true
+    channelmix.upmix-method = psd  # none, simple
+    channelmix.lfe-cutoff = 150
+    channelmix.fc-cutoff  = 12000
+    channelmix.rear-delay = 12.0
+}

src/daemon/client-rt.conf.d/meson.build

@@ -0,0 +1,11 @@
+conf_files = [
+ '20-upmix.conf',
+]
+
+foreach c : conf_files
+  configure_file(input : '@0@.in'.format(c),
+                 output : c,
+                 configuration : conf_config,
+                 install_dir : pipewire_confdatadir / 'client-rt.conf.d')
+endforeach
+

src/daemon/client.conf.d/20-upmix.conf.in

@@ -0,0 +1,8 @@
+# Enables upmixing
+stream.properties = {
+    channelmix.upmix      = true
+    channelmix.upmix-method = psd  # none, simple
+    channelmix.lfe-cutoff = 150
+    channelmix.fc-cutoff  = 12000
+    channelmix.rear-delay = 12.0
+}

src/daemon/client.conf.d/meson.build

@@ -0,0 +1,11 @@
+conf_files = [
+ '20-upmix.conf',
+]
+
+foreach c : conf_files
+  configure_file(input : '@0@.in'.format(c),
+                 output : c,
+                 configuration : conf_config,
+                 install_dir : pipewire_confdatadir / 'client.conf.d')
+endforeach
+

src/daemon/meson.build

@@ -86,6 +86,17 @@ configure_file(input : 'pipewire.conf.in',
                output : 'pipewire-uninstalled.conf',
                configuration : conf_config_uninstalled)
 
+conf_d_files = [
+  'pipewire.conf.d',
+  'client.conf.d',
+  'client-rt.conf.d',
+  'pipewire-pulse.conf.d',
+]
+
+foreach c : conf_d_files
+  subdir(c)
+endforeach
+
 pipewire_exec = executable('pipewire',
   pipewire_daemon_sources,
   install: true,

src/daemon/pipewire-pulse.conf.d/20-upmix.conf.in

@@ -0,0 +1,8 @@
+# Enables upmixing
+stream.properties = {
+    channelmix.upmix      = true
+    channelmix.upmix-method = psd  # none, simple
+    channelmix.lfe-cutoff = 150
+    channelmix.fc-cutoff  = 12000
+    channelmix.rear-delay = 12.0
+}

src/daemon/pipewire-pulse.conf.d/meson.build

@@ -0,0 +1,11 @@
+conf_files = [
+ '20-upmix.conf',
+]
+
+foreach c : conf_files
+  configure_file(input : '@0@.in'.format(c),
+                 output : c,
+                 configuration : conf_config,
+                 install_dir : pipewire_confdatadir / 'pipewire-pulse.conf.d')
+endforeach
+

src/daemon/pipewire.conf.d/10-rates.conf.in

@@ -0,0 +1,4 @@
+# Adds more common rates
+context.properties = {
+    default.clock.allowed-rates = [ 44100 48000 88200 96000 ]
+}

src/daemon/pipewire.conf.d/20-upmix.conf.in

@@ -0,0 +1,8 @@
+# Enables upmixing
+stream.properties = {
+    channelmix.upmix      = true
+    channelmix.upmix-method = psd  # none, simple
+    channelmix.lfe-cutoff = 150
+    channelmix.fc-cutoff  = 12000
+    channelmix.rear-delay = 12.0
+}

src/daemon/pipewire.conf.d/meson.build

@@ -0,0 +1,12 @@
+conf_files = [
+ '10-rates.conf',
+ '20-upmix.conf',
+]
+
+foreach c : conf_files
+  configure_file(input : '@0@.in'.format(c),
+                 output : c,
+                 configuration : conf_config,
+                 install_dir : pipewire_confdatadir / 'pipewire.conf.d')
+endforeach
+