10-aes67.conf

# AES67 config file for PipeWire version "1.2.3"

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 = 2048
}

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 = "eth0"
            #clock.device    = "/dev/ptp0"
            #clock.id        = tai
            # Lower this in case of periodic out-of-sync
            resync.ms       = 0.5
            object.export   = true
        }
    }
]

context.modules = [
    { name = libpipewire-module-rtp-sap
        args = {
            ### Please select the interface here
            local.ifname = eth0
            sap.ip = 239.255.255.255
            sap.port = 9875
            net.ttl = 32
            net.loop = false

            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 = 46
                            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 = enp0s31f6
    #         ### 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
    #         destination.ip = 239.69.150.244
    #         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 = 1
    #         sess.max-ptime = 1
    #         ### Please change this, especially if you create multiple sinks
    #         sess.name = "PipeWire RTP stream"
    #         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 = 3
    #         audio.format = "S24BE"
    #         audio.rate = 48000
    #         audio.channels = 2
    #         # These channel names will be visible both to applications and AES67 receivers
    #         node.channel-names = ["CH1", "CH2"]

    #         stream.props = {
    #             ### Please change the sink name, this is necessary when you create multiple sinks
    #             node.name = "rtp-sink"
    #             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
    #         }
    #     }
    # },
]