[config] important config files

aes67-proxy@.service

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+[Unit]
+Description=Call user's pipewire-aes67 after network
+After=network-online.target
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/systemctl --user --machine=%i@ start pipewire-aes67
+
+[Install]
+WantedBy=multi-user.target

ethernet-static

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+Description='A basic static ethernet connection'
+Interface=end0
+Connection=ethernet
+IP=static
+Address='169.254.14.228/16'
+#Routes=('192.168.0.0/24 via 192.168.1.2')
+Gateway='169.254.14.254'
+ForceConnect=yes

linuxptp.ptp4l@.service

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+[Unit]
+Description=Precision Time Protocol (PTP) service for %I
+Documentation=man:ptp4l
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+ExecStart=/usr/sbin/ptp4l -f /etc/linuxptp/ptp4l.conf -i %I -p /dev/ptp0 -l6 -E -H -m --step_threshold 0.00000001 -4 --priority1 255 --priority2 255 --domainNumber 0 --dscp_event 46
+
+[Install]
+WantedBy=multi-user.target

pipewire-aes67.conf

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+# AES67 config file for PipeWire version "1.2.7" #
+#
+# Copy and edit this file in @PIPEWIRE_CONFIG_DIR@ for system-wide changes
+# or in ~/.config/pipewire for local changes.
+#
+# It is also possible to place a file with an updated section in
+# @PIPEWIRE_CONFIG_DIR@/pipewire-aes67.conf.d/ for system-wide changes or in
+# ~/.config/pipewire/pipewire-aes67.conf.d/ for local changes.
+#
+
+
+context.properties = {
+        ## Configure properties in the system.
+        #mem.warn-mlock  = false
+        #mem.allow-mlock = true
+        #mem.mlock-all   = false
+        #log.level           = 2
+
+
+        #default.clock.quantum-limit = 8192
+}
+
+
+context.spa-libs = {
+        support.*           = support/libspa-support
+}
+
+
+context.objects = [
+        # An example clock reading from /dev/ptp0. You can also specify the network interface name,
+        # pipewire will query the interface for the current active PHC index. Another option is to
+        # sync the ptp clock to CLOCK_TAI and then set clock.id = tai, keep in mind that tai may
+        # also be synced by a NTP client.
+        # The precedence is: device, interface, id
+        { factory = spa-node-factory
+            args = {
+                factory.name        = support.node.driver
+                node.name           = PTP0-Driver
+                node.group          = pipewire.ptp0
+                # This driver should only be used for network nodes marked with group
+                priority.driver = 100000
+                clock.name          = "clock.system.ptp0"
+                ### Please select the PTP hardware clock here
+                # Interface name is the preferred method of specifying the PHC
+                #clock.interface = "end0"
+                clock.device        = "/dev/ptp0"
+                #clock.id            = tai
+                # Lower this in case of periodic out-of-sync
+                resync.ms           = 1.5
+                object.export   = true
+            }
+        }
+]
+
+
+context.modules = [
+        { name = libpipewire-module-rt
+            args = {
+                nice.level   = -11
+                #rt.prio          = @rtprio_client@
+                #rt.time.soft = -1
+                #rt.time.hard = -1
+            }
+            flags = [ ifexists nofail ]
+        }
+        { name = libpipewire-module-protocol-native }
+        { name = libpipewire-module-client-node }
+        { name = libpipewire-module-spa-node-factory }
+        { name = libpipewire-module-adapter }
+        { name = libpipewire-module-rtp-sap
+            args = {
+                ### Please select the interface here
+                local.ifname = end0
+                sap.ip = 239.255.255.255
+                sap.port = 9875
+                net.ttl = 32
+                net.loop = false
+                # If you use another PTPv2 daemon supporting management
+                # messages over a UNIX socket, specify its path here
+                #ptp.management-socket = "/var/run/ptp4lro"
+
+
+                stream.rules = [
+                    {
+                        matches = [
+                            {
+                                rtp.session = "~.*"
+                            }
+                        ]
+                        actions = {
+                            create-stream = {
+                                node.virtual = false
+                                media.class = "Audio/Source"
+                                device.api = aes67
+                                # You can adjust the latency buffering here. Use integer values only
+                                sess.latency.msec = 2
+                                node.group = pipewire.ptp0
+                            }
+                        }
+                    },
+                    {
+                        matches = [
+                            {
+                                sess.sap.announce = true
+                            }
+                        ]
+                        actions = {
+                            announce-stream = {}
+                        }
+                   }
+                ]
+            }
+        },
+        { name = libpipewire-module-rtp-sink
+            args = {
+                ### Please select the interface here
+                local.ifname = end0
+                ### If you want to create multiple output streams, please copy the whole
+                ### module-rtp-sink block, but change this multicast IP to another unused
+                ### one keeping 239.69.x.x range unless you know you need another one
+         	# source.ip = 0.0.0.0                
+		destination.ip = 239.69.1.8
+                destination.port = 5004
+                net.mtu = 1280
+                net.ttl = 32
+                net.loop = false
+                # These should typically be equal
+                # You can customize packet length, but 1 ms should work for every device
+                # Consult receiver documentation to ensure it supports the value you set
+                sess.min-ptime = 2
+                sess.max-ptime = 2
+                ### Please change this, especially if you create multiple sinks
+                sess.name = "0_to_7"
+                sess.media = "audio"
+                # This property is used if you aren't using ptp4l 4
+                #sess.ts-refclk = "ptp=traceable"
+                #sess.ts-offset = 0
+                # You can adjust the latency buffering here. Use integer values only
+                sess.latency.msec = 2
+                audio.format = "S24BE"
+                audio.rate = 48000
+                audio.channels = 8
+                # These channel names will be visible both to applications and AES67 receivers
+                node.channel-names = ["0", "1", "2", "3", "4", "5", "6", "7"]                
+		# Uncomment this and comment node.group in send/recv stream.props to allow
+                # separate drivers for the RTP sink and PTP sending (i.e. force rate matching on
+                # the AES67 node rather than other nodes)
+                #aes67.driver-group = "pipewire.ptp0"
+
+
+                stream.props = {
+                    ### Please change the sink name, this is necessary when you create multiple sinks
+                    node.name = "0_to_7"
+                    media.class = "Audio/Sink"
+                    node.virtual = false
+                    device.api = aes67
+                    sess.sap.announce = true
+                    node.always-process = true
+                    node.group = pipewire.ptp0
+                    rtp.ntp = 0
+                    rtp.fetch-ts-refclk = true
+                }
+            }
+        },
+]

pipewire-aes67.service

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+[Unit]
+Description=PipeWire Multimedia Service
+Requires=pipewire.socket
+
+[Service]
+Type=simple
+ExecStart=/usr/bin/pipewire-aes67
+
+[Install]
+WantedBy=default.target

ptp4l.conf

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+[global]
+time_stamping hardware
+tx_timestamp_timeout 10
+twoStepFlag 1
+delay_mechanism Auto
+delay_response_timeout 10
+clientOnly 1
+