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>

1 files changed, 184 insertions, 0 deletions

diff --git a/meta-pipewire/recipes-multimedia/wireplumber/wireplumber-policy-config-agl/50-AGL-media-role-nodes.conf b/meta-pipewire/recipes-multimedia/wireplumber/wireplumber-policy-config-agl/50-AGL-media-role-nodes.conf
new file mode 100644
index 000000000..4e4f3323f
--- /dev/null
+++ b/meta-pipewire/recipes-multimedia/wireplumber/wireplumber-policy-config-agl/50-AGL-media-role-nodes.conf
@@ -0,0 +1,184 @@
+wireplumber.profiles = {
+  policy = {
+    agl.policy.linking.role-based.loopbacks = required
+  }
+}
+
+wireplumber.settings = {
+  # This sets a default media role to be applied to streams that don't have
+  # a role already set. This allows you to force all streams to go through
+  # the role loopbacks. If not set, then streams without a role will follow
+  # the standard desktop policy and will link to the default sink
+  node.stream.default-media-role = "Multimedia"
+
+  # The volume level that is applied when ducking
+  # Note that this is a raw linear volume, not cubic (0.2 is 58%)
+  linking.role-based.duck-level = 0.2
+
+  # Do not allow changing the targets of streams via `target.object` metadata
+  linking.allow-moving-streams = false
+}
+
+wireplumber.components.rules = [
+  # This encodes common arguments and dependencies of the role loopbacks so that
+  # we don't have to repeateadly write them on all instances below
+  {
+    matches = [
+      {
+        provides = "~loopback.sink.*"
+      }
+    ]
+    actions = {
+      merge = {
+        arguments = {
+          capture.props = {
+            # Explicitly mark all these sinks as valid role-based policy
+            # targets, meaning that any links between streams and these sinks
+            # will be managed by the role-based policy
+            policy.role-based.target = true
+
+            audio.position = [ FL, FR ]
+            media.class = Audio/Sink
+          }
+          playback.props = {
+            # 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 an unused role to make sure that loopbacks don't
+            # accidentally chain-link on to one another, especially when
+            # node.stream.default-media-role is configured in the settings
+            media.role = "Loopback"
+          }
+        }
+        requires = [ pw.node-factory.adapter ]
+        after = [ support.standard-event-source ]
+      }
+    }
+  }
+]
+
+wireplumber.components = [
+  {
+    type = virtual, provides = agl.policy.linking.role-based.loopbacks
+    requires = [ loopback.sink.role.multimedia
+                 loopback.sink.role.speech-low
+                 loopback.sink.role.custom-low
+                 loopback.sink.role.navigation
+                 loopback.sink.role.speech-high
+                 loopback.sink.role.custom-high
+                 loopback.sink.role.communication
+                 loopback.sink.role.emergency ]
+  }
+  {
+    name = libpipewire-module-loopback, type = pw-module
+    arguments = {
+      node.name = "loopback.sink.role.multimedia"
+      node.description = "Multimedia"
+      capture.props = {
+        device.intended-roles = [ "Music", "Movie", "Game", "Multimedia" ]
+        policy.role-based.priority = 25
+        policy.role-based.action.same-priority = "mix"
+        policy.role-based.action.lower-priority = "mix"
+      }
+    }
+    provides = loopback.sink.role.multimedia
+  }
+  {
+    name = libpipewire-module-loopback, type = pw-module
+    arguments = {
+      node.name = "loopback.sink.role.speech-low"
+      node.description = "Speech (Low Priority)"
+      capture.props = {
+        device.intended-roles = [ "Speech-Low" ]
+        policy.role-based.priority = 30
+        policy.role-based.action.same-priority = "mix"
+        policy.role-based.action.lower-priority = "cork"
+      }
+    }
+    provides = loopback.sink.role.speech-low
+  }
+  {
+    name = libpipewire-module-loopback, type = pw-module
+    arguments = {
+      node.name = "loopback.sink.role.custom-low"
+      node.description = "Custom role (Low Priority)"
+      capture.props = {
+        device.intended-roles = [ "Custom-Low" ]
+        policy.role-based.priority = 35
+        policy.role-based.action.same-priority = "mix"
+        policy.role-based.action.lower-priority = "cork"
+      }
+    }
+    provides = loopback.sink.role.custom-low
+  }
+  {
+    name = libpipewire-module-loopback, type = pw-module
+    arguments = {
+      node.name = "loopback.sink.role.navigation"
+      node.description = "Navigation"
+      capture.props = {
+        device.intended-roles = [ "Navigation" ]
+        policy.role-based.priority = 50
+        policy.role-based.action.same-priority = "mix"
+        policy.role-based.action.lower-priority = "duck"
+      }
+    }
+    provides = loopback.sink.role.navigation
+  }
+  {
+    name = libpipewire-module-loopback, type = pw-module
+    arguments = {
+      node.name = "loopback.sink.role.speech-high"
+      node.description = "Speech (High Priority)"
+      capture.props = {
+        device.intended-roles = [ "Speech-High" ]
+        policy.role-based.priority = 60
+        policy.role-based.action.same-priority = "mix"
+        policy.role-based.action.lower-priority = "cork"
+      }
+    }
+    provides = loopback.sink.role.speech-high
+  }
+  {
+    name = libpipewire-module-loopback, type = pw-module
+    arguments = {
+      node.name = "loopback.sink.role.custom-high"
+      node.description = "Custom role (High Priority)"
+      capture.props = {
+        device.intended-roles = [ "Custom-High" ]
+        policy.role-based.priority = 65
+        policy.role-based.action.same-priority = "mix"
+        policy.role-based.action.lower-priority = "cork"
+      }
+    }
+    provides = loopback.sink.role.custom-high
+  }
+  {
+    name = libpipewire-module-loopback, type = pw-module
+    arguments = {
+      node.name = "loopback.sink.role.communication"
+      node.description = "Communication"
+      capture.props = {
+        device.intended-roles = [ "Communication" ]
+        policy.role-based.priority = 75
+        policy.role-based.action.same-priority = "mix"
+        policy.role-based.action.lower-priority = "cork"
+      }
+    }
+    provides = loopback.sink.role.communication
+  }
+  {
+    name = libpipewire-module-loopback, type = pw-module
+    arguments = {
+      node.name = "loopback.sink.role.emergency"
+      node.description = "Emergency"
+      capture.props = {
+        device.intended-roles = [ "Emergency", "Alert" ]
+        policy.role-based.priority = 99
+        policy.role-based.action.same-priority = "mix"
+        policy.role-based.action.lower-priority = "cork"
+      }
+    }
+    provides = loopback.sink.role.emergency
+  }
+]