meta-pipewire: update wireplumber to 0.5.6

- use the wireplumber recipe from meta-openembedded (albeit copied
  here with the version changed, because 0.5.6 is not available in
  meta-openembedded)
- rewrite configuration files as needed for 0.5.x
- configure wireplumber with the main service masked, using only the
  template service files for a split-instance configuration.
  split-instance facilitates the multi-container setup that is used
  in the instrument cluster images.

Bug-AGL: SPEC-4934
Change-Id: Ica83f869cdc9527a9edce25e63918a2ba97a4766
Signed-off-by: George Kiagiadakis <george.kiagiadakis@collabora.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/30243
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Tested-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
(cherry picked from commit 5dd43491b6e44664ad1d2e2fb596b6cb248c88fb)
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/30209

1 files changed, 75 insertions, 0 deletions

diff --git a/meta-pipewire/recipes-multimedia/wireplumber/wireplumber-policy-config-agl/50-AGL-equalizer.conf b/meta-pipewire/recipes-multimedia/wireplumber/wireplumber-policy-config-agl/50-AGL-equalizer.conf
new file mode 100644
index 000000000..061eae96c
--- /dev/null
+++ b/meta-pipewire/recipes-multimedia/wireplumber/wireplumber-policy-config-agl/50-AGL-equalizer.conf
@@ -0,0 +1,75 @@
+wireplumber.profiles = {
+  policy = {
+    agl.filter.equalizer-sink = required
+  }
+}
+
+wireplumber.components = [
+  {
+    name = libpipewire-module-filter-chain, type = pw-module
+    arguments = {
+      node.description = "Equalizer Sink"
+      media.name       = "Equalizer Sink"
+      filter.graph = {
+        nodes = [
+          {
+            type  = builtin
+            name  = bass
+            label = bq_lowshelf
+            # the cut off freq of the bass filter can be adjusted here.
+            control = { "Freq" = 250.0 "Q" = 1.0 "Gain" = 0.0 }
+          }
+          {
+            type  = builtin
+            name  = treble
+            label = bq_peaking
+            # the cut off freq of the treble filter can be adjusted here.
+            control = { "Freq" = 6000.0 "Q" = 1.0 "Gain" = 0.0 }
+          }
+        ]
+        links = [
+          { output = "bass:Out" input = "treble:In" }
+        ]
+      }
+      audio.channels = 2
+      audio.position = [ FL FR ]
+      capture.props = {
+        node.name = "eq-sink"
+
+        # this is a sink filter, so it will appear as a sink in wpctl/pactl/etc,
+        # it will target a sink and can be chained with other sink smart filters
+        media.class = Audio/Sink
+
+        # treat this as a smart filter
+        filter.smart = true
+
+        # the unique name of the filter
+        filter.smart.name = "agl.filter.equalizer-sink"
+
+        ## set this to always link the filter to a particular sink
+        ## or leave it unset in order to follow the default sink
+        #filter.smart.target = { node.name = "alsa_output.pci-0000_00_01.0.analog-stereo" }
+
+        ## here you can specify filter dependencies, using their names
+        ## (filter.smart.name) if you set up many of them to be linked in a chain
+        #filter.smart.before = []
+        #filter.smart.after = []
+      }
+      playback.props = {
+        node.name = "eq-output-stream"
+
+        # This must be set to ensure that the real audio sink is suspended
+        # when there is no active client stream linked
+        node.passive = true
+
+        # Set this to avoid linking the filter to role-based sinks when
+        # role-based sinks are defined and node.stream.default-media-role is
+        # configured in the settings
+        media.role = "DSP"
+      }
+    }
+    provides = agl.filter.equalizer-sink
+    requires = [ pw.node-factory.adapter ]
+    after = [ support.standard-event-source ]
+  }
+]