libgstreamer1.0-dev 1.14.0-1 / usr / share / gir-1.0 / GstNet-1.0.gir

<?xml version="1.0"?>
<!-- This file was automatically generated from C sources - DO NOT EDIT!
To affect the contents of this file, edit the original C definitions,
and/or use gtk-doc annotations.  -->
<repository version="1.2"
            xmlns="http://www.gtk.org/introspection/core/1.0"
            xmlns:c="http://www.gtk.org/introspection/c/1.0"
            xmlns:glib="http://www.gtk.org/introspection/glib/1.0">
  <include name="Gio" version="2.0"/>
  <include name="Gst" version="1.0"/>
  <package name="gstreamer-net-1.0"/>
  <c:include name="gst/net/net.h"/>
  <namespace name="GstNet"
             version="1.0"
             shared-library="libgstnet-1.0.so.0"
             c:identifier-prefixes="Gst"
             c:symbol-prefixes="gst">
    <constant name="NET_TIME_PACKET_SIZE"
              value="16"
              c:type="GST_NET_TIME_PACKET_SIZE">
      <doc xml:space="preserve">The size of the packets sent between network clocks.</doc>
      <type name="gint" c:type="gint"/>
    </constant>
    <record name="NetAddressMeta" c:type="GstNetAddressMeta">
      <doc xml:space="preserve">#GstNetAddressMeta can be used to store a network address (a #GSocketAddress)
in a #GstBuffer so that it network elements can track the to and from address
of the buffer.</doc>
      <field name="meta" writable="1">
        <doc xml:space="preserve">the parent type</doc>
        <type name="Gst.Meta" c:type="GstMeta"/>
      </field>
      <field name="addr" writable="1">
        <doc xml:space="preserve">a #GSocketAddress stored as metadata</doc>
        <type name="Gio.SocketAddress" c:type="GSocketAddress*"/>
      </field>
      <function name="get_info" c:identifier="gst_net_address_meta_get_info">
        <return-value transfer-ownership="none">
          <type name="Gst.MetaInfo" c:type="const GstMetaInfo*"/>
        </return-value>
      </function>
    </record>
    <class name="NetClientClock"
           c:symbol-prefix="net_client_clock"
           c:type="GstNetClientClock"
           parent="Gst.SystemClock"
           glib:type-name="GstNetClientClock"
           glib:get-type="gst_net_client_clock_get_type"
           glib:type-struct="NetClientClockClass">
      <doc xml:space="preserve">#GstNetClientClock implements a custom #GstClock that synchronizes its time
to a remote time provider such as #GstNetTimeProvider. #GstNtpClock
implements a #GstClock that synchronizes its time to a remote NTPv4 server.

A new clock is created with gst_net_client_clock_new() or
gst_ntp_clock_new(), which takes the address and port of the remote time
provider along with a name and an initial time.

This clock will poll the time provider and will update its calibration
parameters based on the local and remote observations.

The "round-trip" property limits the maximum round trip packets can take.

Various parameters of the clock can be configured with the parent #GstClock
"timeout", "window-size" and "window-threshold" object properties.

A #GstNetClientClock and #GstNtpClock is typically set on a #GstPipeline with
gst_pipeline_use_clock().

If you set a #GstBus on the clock via the "bus" object property, it will
send @GST_MESSAGE_ELEMENT messages with an attached #GstStructure containing
statistics about clock accuracy and network traffic.</doc>
      <constructor name="new" c:identifier="gst_net_client_clock_new">
        <doc xml:space="preserve">Create a new #GstNetClientInternalClock that will report the time
provided by the #GstNetTimeProvider on @remote_address and
@remote_port.</doc>
        <return-value transfer-ownership="full">
          <doc xml:space="preserve">a new #GstClock that receives a time from the remote
clock.</doc>
          <type name="Gst.Clock" c:type="GstClock*"/>
        </return-value>
        <parameters>
          <parameter name="name" transfer-ownership="none">
            <doc xml:space="preserve">a name for the clock</doc>
            <type name="utf8" c:type="const gchar*"/>
          </parameter>
          <parameter name="remote_address" transfer-ownership="none">
            <doc xml:space="preserve">the address or hostname of the remote clock provider</doc>
            <type name="utf8" c:type="const gchar*"/>
          </parameter>
          <parameter name="remote_port" transfer-ownership="none">
            <doc xml:space="preserve">the port of the remote clock provider</doc>
            <type name="gint" c:type="gint"/>
          </parameter>
          <parameter name="base_time" transfer-ownership="none">
            <doc xml:space="preserve">initial time of the clock</doc>
            <type name="Gst.ClockTime" c:type="GstClockTime"/>
          </parameter>
        </parameters>
      </constructor>
      <property name="address"
                writable="1"
                construct="1"
                transfer-ownership="none">
        <type name="utf8" c:type="gchar*"/>
      </property>
      <property name="base-time"
                writable="1"
                construct-only="1"
                transfer-ownership="none">
        <type name="guint64" c:type="guint64"/>
      </property>
      <property name="bus" writable="1" transfer-ownership="none">
        <type name="Gst.Bus"/>
      </property>
      <property name="internal-clock" transfer-ownership="none">
        <type name="Gst.Clock"/>
      </property>
      <property name="minimum-update-interval"
                writable="1"
                transfer-ownership="none">
        <type name="guint64" c:type="guint64"/>
      </property>
      <property name="port"
                writable="1"
                construct="1"
                transfer-ownership="none">
        <type name="gint" c:type="gint"/>
      </property>
      <property name="qos-dscp" writable="1" transfer-ownership="none">
        <type name="gint" c:type="gint"/>
      </property>
      <property name="round-trip-limit" writable="1" transfer-ownership="none">
        <type name="guint64" c:type="guint64"/>
      </property>
      <field name="clock">
        <type name="Gst.SystemClock" c:type="GstSystemClock"/>
      </field>
      <field name="priv" readable="0" private="1">
        <type name="NetClientClockPrivate" c:type="GstNetClientClockPrivate*"/>
      </field>
      <field name="_gst_reserved" readable="0" private="1">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </class>
    <record name="NetClientClockClass"
            c:type="GstNetClientClockClass"
            glib:is-gtype-struct-for="NetClientClock">
      <field name="parent_class">
        <type name="Gst.SystemClockClass" c:type="GstSystemClockClass"/>
      </field>
      <field name="_gst_reserved" readable="0" private="1">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <record name="NetClientClockPrivate"
            c:type="GstNetClientClockPrivate"
            disguised="1">
    </record>
    <record name="NetControlMessageMeta" c:type="GstNetControlMessageMeta">
      <doc xml:space="preserve">#GstNetControlMessageMeta can be used to store control messages (ancillary
data) which was received with or is to be sent alongside the buffer data.
When used with socket sinks and sources which understand this meta it allows
sending and receiving ancillary data such as unix credentials (See
#GUnixCredentialsMessage) and Unix file descriptions (See #GUnixFDMessage).</doc>
      <field name="meta" writable="1">
        <doc xml:space="preserve">the parent type</doc>
        <type name="Gst.Meta" c:type="GstMeta"/>
      </field>
      <field name="message" writable="1">
        <doc xml:space="preserve">a #GSocketControlMessage stored as metadata</doc>
        <type name="Gio.SocketControlMessage" c:type="GSocketControlMessage*"/>
      </field>
      <function name="get_info"
                c:identifier="gst_net_control_message_meta_get_info">
        <return-value transfer-ownership="none">
          <type name="Gst.MetaInfo" c:type="const GstMetaInfo*"/>
        </return-value>
      </function>
    </record>
    <record name="NetTimePacket"
            c:type="GstNetTimePacket"
            glib:type-name="GstNetTimePacket"
            glib:get-type="gst_net_time_packet_get_type"
            c:symbol-prefix="net_time_packet">
      <doc xml:space="preserve">Various functions for receiving, sending an serializing #GstNetTimePacket
structures.</doc>
      <field name="local_time" writable="1">
        <doc xml:space="preserve">the local time when this packet was sent</doc>
        <type name="Gst.ClockTime" c:type="GstClockTime"/>
      </field>
      <field name="remote_time" writable="1">
        <doc xml:space="preserve">the remote time observation</doc>
        <type name="Gst.ClockTime" c:type="GstClockTime"/>
      </field>
      <constructor name="new" c:identifier="gst_net_time_packet_new">
        <doc xml:space="preserve">Creates a new #GstNetTimePacket from a buffer received over the network. The
caller is responsible for ensuring that @buffer is at least
#GST_NET_TIME_PACKET_SIZE bytes long.

If @buffer is %NULL, the local and remote times will be set to
#GST_CLOCK_TIME_NONE.

MT safe. Caller owns return value (gst_net_time_packet_free to free).</doc>
        <return-value transfer-ownership="full">
          <doc xml:space="preserve">The new #GstNetTimePacket.</doc>
          <type name="NetTimePacket" c:type="GstNetTimePacket*"/>
        </return-value>
        <parameters>
          <parameter name="buffer" transfer-ownership="none">
            <doc xml:space="preserve">a buffer from which to construct the packet, or NULL</doc>
            <array zero-terminated="0" c:type="guint8*">
              <type name="guint8" c:type="guint8"/>
            </array>
          </parameter>
        </parameters>
      </constructor>
      <method name="copy" c:identifier="gst_net_time_packet_copy">
        <doc xml:space="preserve">Make a copy of @packet.</doc>
        <return-value transfer-ownership="full">
          <doc xml:space="preserve">a copy of @packet, free with gst_net_time_packet_free().</doc>
          <type name="NetTimePacket" c:type="GstNetTimePacket*"/>
        </return-value>
        <parameters>
          <instance-parameter name="packet" transfer-ownership="none">
            <doc xml:space="preserve">the #GstNetTimePacket</doc>
            <type name="NetTimePacket" c:type="const GstNetTimePacket*"/>
          </instance-parameter>
        </parameters>
      </method>
      <method name="free" c:identifier="gst_net_time_packet_free">
        <doc xml:space="preserve">Free @packet.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <instance-parameter name="packet" transfer-ownership="none">
            <doc xml:space="preserve">the #GstNetTimePacket</doc>
            <type name="NetTimePacket" c:type="GstNetTimePacket*"/>
          </instance-parameter>
        </parameters>
      </method>
      <method name="send" c:identifier="gst_net_time_packet_send" throws="1">
        <doc xml:space="preserve">Sends a #GstNetTimePacket over a socket.

MT safe.</doc>
        <return-value transfer-ownership="none">
          <doc xml:space="preserve">TRUE if successful, FALSE in case an error occurred.</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <instance-parameter name="packet" transfer-ownership="none">
            <doc xml:space="preserve">the #GstNetTimePacket to send</doc>
            <type name="NetTimePacket" c:type="const GstNetTimePacket*"/>
          </instance-parameter>
          <parameter name="socket" transfer-ownership="none">
            <doc xml:space="preserve">socket to send the time packet on</doc>
            <type name="Gio.Socket" c:type="GSocket*"/>
          </parameter>
          <parameter name="dest_address" transfer-ownership="none">
            <doc xml:space="preserve">address to send the time packet to</doc>
            <type name="Gio.SocketAddress" c:type="GSocketAddress*"/>
          </parameter>
        </parameters>
      </method>
      <method name="serialize" c:identifier="gst_net_time_packet_serialize">
        <doc xml:space="preserve">Serialized a #GstNetTimePacket into a newly-allocated sequence of
#GST_NET_TIME_PACKET_SIZE bytes, in network byte order. The value returned is
suitable for passing to write(2) or sendto(2) for communication over the
network.

MT safe. Caller owns return value (g_free to free).</doc>
        <return-value transfer-ownership="none">
          <doc xml:space="preserve">A newly allocated sequence of #GST_NET_TIME_PACKET_SIZE bytes.</doc>
          <type name="guint8" c:type="guint8*"/>
        </return-value>
        <parameters>
          <instance-parameter name="packet" transfer-ownership="none">
            <doc xml:space="preserve">the #GstNetTimePacket</doc>
            <type name="NetTimePacket" c:type="const GstNetTimePacket*"/>
          </instance-parameter>
        </parameters>
      </method>
      <function name="receive"
                c:identifier="gst_net_time_packet_receive"
                throws="1">
        <doc xml:space="preserve">Receives a #GstNetTimePacket over a socket. Handles interrupted system
calls, but otherwise returns NULL on error.</doc>
        <return-value transfer-ownership="full">
          <doc xml:space="preserve">a new #GstNetTimePacket, or NULL on error. Free
   with gst_net_time_packet_free() when done.</doc>
          <type name="NetTimePacket" c:type="GstNetTimePacket*"/>
        </return-value>
        <parameters>
          <parameter name="socket" transfer-ownership="none">
            <doc xml:space="preserve">socket to receive the time packet on</doc>
            <type name="Gio.Socket" c:type="GSocket*"/>
          </parameter>
          <parameter name="src_address"
                     direction="out"
                     caller-allocates="0"
                     transfer-ownership="full">
            <doc xml:space="preserve">address of variable to return sender address</doc>
            <type name="Gio.SocketAddress" c:type="GSocketAddress**"/>
          </parameter>
        </parameters>
      </function>
    </record>
    <class name="NetTimeProvider"
           c:symbol-prefix="net_time_provider"
           c:type="GstNetTimeProvider"
           parent="Gst.Object"
           glib:type-name="GstNetTimeProvider"
           glib:get-type="gst_net_time_provider_get_type"
           glib:type-struct="NetTimeProviderClass">
      <doc xml:space="preserve">This object exposes the time of a #GstClock on the network.

A #GstNetTimeProvider is created with gst_net_time_provider_new() which
takes a #GstClock, an address and a port number as arguments.

After creating the object, a client clock such as #GstNetClientClock can
query the exposed clock over the network for its values.

The #GstNetTimeProvider typically wraps the clock used by a #GstPipeline.</doc>
      <implements name="Gio.Initable"/>
      <constructor name="new" c:identifier="gst_net_time_provider_new">
        <doc xml:space="preserve">Allows network clients to get the current time of @clock.</doc>
        <return-value transfer-ownership="full">
          <doc xml:space="preserve">the new #GstNetTimeProvider, or NULL on error</doc>
          <type name="NetTimeProvider" c:type="GstNetTimeProvider*"/>
        </return-value>
        <parameters>
          <parameter name="clock" transfer-ownership="none">
            <doc xml:space="preserve">a #GstClock to export over the network</doc>
            <type name="Gst.Clock" c:type="GstClock*"/>
          </parameter>
          <parameter name="address"
                     transfer-ownership="none"
                     nullable="1"
                     allow-none="1">
            <doc xml:space="preserve">an address to bind on as a dotted quad
          (xxx.xxx.xxx.xxx), IPv6 address, or NULL to bind to all addresses</doc>
            <type name="utf8" c:type="const gchar*"/>
          </parameter>
          <parameter name="port" transfer-ownership="none">
            <doc xml:space="preserve">a port to bind on, or 0 to let the kernel choose</doc>
            <type name="gint" c:type="gint"/>
          </parameter>
        </parameters>
      </constructor>
      <property name="active" writable="1" transfer-ownership="none">
        <type name="gboolean" c:type="gboolean"/>
      </property>
      <property name="address"
                writable="1"
                construct-only="1"
                transfer-ownership="none">
        <type name="utf8" c:type="gchar*"/>
      </property>
      <property name="clock"
                writable="1"
                construct-only="1"
                transfer-ownership="none">
        <type name="Gst.Clock"/>
      </property>
      <property name="port"
                writable="1"
                construct-only="1"
                transfer-ownership="none">
        <type name="gint" c:type="gint"/>
      </property>
      <property name="qos-dscp" writable="1" transfer-ownership="none">
        <type name="gint" c:type="gint"/>
      </property>
      <field name="parent">
        <type name="Gst.Object" c:type="GstObject"/>
      </field>
      <field name="priv" readable="0" private="1">
        <type name="NetTimeProviderPrivate"
              c:type="GstNetTimeProviderPrivate*"/>
      </field>
      <field name="_gst_reserved" readable="0" private="1">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </class>
    <record name="NetTimeProviderClass"
            c:type="GstNetTimeProviderClass"
            glib:is-gtype-struct-for="NetTimeProvider">
      <field name="parent_class">
        <type name="Gst.ObjectClass" c:type="GstObjectClass"/>
      </field>
      <field name="_gst_reserved">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <record name="NetTimeProviderPrivate"
            c:type="GstNetTimeProviderPrivate"
            disguised="1">
    </record>
    <class name="NtpClock"
           c:symbol-prefix="ntp_clock"
           c:type="GstNtpClock"
           parent="NetClientClock"
           glib:type-name="GstNtpClock"
           glib:get-type="gst_ntp_clock_get_type"
           glib:type-struct="NtpClockClass">
      <constructor name="new" c:identifier="gst_ntp_clock_new" version="1.6">
        <doc xml:space="preserve">Create a new #GstNtpClock that will report the time provided by
the NTPv4 server on @remote_address and @remote_port.</doc>
        <return-value transfer-ownership="full">
          <doc xml:space="preserve">a new #GstClock that receives a time from the remote
clock.</doc>
          <type name="Gst.Clock" c:type="GstClock*"/>
        </return-value>
        <parameters>
          <parameter name="name" transfer-ownership="none">
            <doc xml:space="preserve">a name for the clock</doc>
            <type name="utf8" c:type="const gchar*"/>
          </parameter>
          <parameter name="remote_address" transfer-ownership="none">
            <doc xml:space="preserve">the address or hostname of the remote clock provider</doc>
            <type name="utf8" c:type="const gchar*"/>
          </parameter>
          <parameter name="remote_port" transfer-ownership="none">
            <doc xml:space="preserve">the port of the remote clock provider</doc>
            <type name="gint" c:type="gint"/>
          </parameter>
          <parameter name="base_time" transfer-ownership="none">
            <doc xml:space="preserve">initial time of the clock</doc>
            <type name="Gst.ClockTime" c:type="GstClockTime"/>
          </parameter>
        </parameters>
      </constructor>
      <field name="clock">
        <type name="Gst.SystemClock" c:type="GstSystemClock"/>
      </field>
      <field name="priv" readable="0" private="1">
        <type name="NetClientClockPrivate" c:type="GstNetClientClockPrivate*"/>
      </field>
      <field name="_gst_reserved" readable="0" private="1">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </class>
    <record name="NtpClockClass"
            c:type="GstNtpClockClass"
            glib:is-gtype-struct-for="NtpClock">
      <field name="parent_class">
        <type name="Gst.SystemClockClass" c:type="GstSystemClockClass"/>
      </field>
      <field name="_gst_reserved" readable="0" private="1">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <constant name="PTP_CLOCK_ID_NONE"
              value="18446744073709551615"
              c:type="GST_PTP_CLOCK_ID_NONE">
      <doc xml:space="preserve">PTP clock identification that can be passed to gst_ptp_init() to
automatically select one based on the MAC address of interfaces</doc>
      <type name="guint64" c:type="guint64"/>
    </constant>
    <constant name="PTP_STATISTICS_BEST_MASTER_CLOCK_SELECTED"
              value="GstPtpStatisticsBestMasterClockSelected"
              c:type="GST_PTP_STATISTICS_BEST_MASTER_CLOCK_SELECTED">
      <type name="utf8" c:type="gchar*"/>
    </constant>
    <constant name="PTP_STATISTICS_NEW_DOMAIN_FOUND"
              value="GstPtpStatisticsNewDomainFound"
              c:type="GST_PTP_STATISTICS_NEW_DOMAIN_FOUND">
      <type name="utf8" c:type="gchar*"/>
    </constant>
    <constant name="PTP_STATISTICS_PATH_DELAY_MEASURED"
              value="GstPtpStatisticsPathDelayMeasured"
              c:type="GST_PTP_STATISTICS_PATH_DELAY_MEASURED">
      <type name="utf8" c:type="gchar*"/>
    </constant>
    <constant name="PTP_STATISTICS_TIME_UPDATED"
              value="GstPtpStatisticsTimeUpdated"
              c:type="GST_PTP_STATISTICS_TIME_UPDATED">
      <type name="utf8" c:type="gchar*"/>
    </constant>
    <class name="PtpClock"
           c:symbol-prefix="ptp_clock"
           c:type="GstPtpClock"
           parent="Gst.SystemClock"
           glib:type-name="GstPtpClock"
           glib:get-type="gst_ptp_clock_get_type"
           glib:type-struct="PtpClockClass">
      <doc xml:space="preserve">GstPtpClock implements a PTP (IEEE1588:2008) ordinary clock in slave-only
mode, that allows a GStreamer pipeline to synchronize to a PTP network
clock in some specific domain.

The PTP subsystem can be initialized with gst_ptp_init(), which then starts
a helper process to do the actual communication via the PTP ports. This is
required as PTP listens on ports &lt; 1024 and thus requires special
privileges. Once this helper process is started, the main process will
synchronize to all PTP domains that are detected on the selected
interfaces.

gst_ptp_clock_new() then allows to create a GstClock that provides the PTP
time from a master clock inside a specific PTP domain. This clock will only
return valid timestamps once the timestamps in the PTP domain are known. To
check this, you can use gst_clock_wait_for_sync(), the GstClock::synced
signal and gst_clock_is_synced().

To gather statistics about the PTP clock synchronization,
gst_ptp_statistics_callback_add() can be used. This gives the application
the possibility to collect all kinds of statistics from the clock
synchronization.</doc>
      <constructor name="new" c:identifier="gst_ptp_clock_new" version="1.6">
        <doc xml:space="preserve">Creates a new PTP clock instance that exports the PTP time of the master
clock in @domain. This clock can be slaved to other clocks as needed.

If gst_ptp_init() was not called before, this will call gst_ptp_init() with
default parameters.

This clock only returns valid timestamps after it received the first
times from the PTP master clock on the network. Once this happens the
GstPtpClock::internal-clock property will become non-NULL. You can
check this with gst_clock_wait_for_sync(), the GstClock::synced signal and
gst_clock_is_synced().</doc>
        <return-value transfer-ownership="full">
          <doc xml:space="preserve">A new #GstClock</doc>
          <type name="Gst.Clock" c:type="GstClock*"/>
        </return-value>
        <parameters>
          <parameter name="name" transfer-ownership="none">
            <doc xml:space="preserve">Name of the clock</doc>
            <type name="utf8" c:type="const gchar*"/>
          </parameter>
          <parameter name="domain" transfer-ownership="none">
            <doc xml:space="preserve">PTP domain</doc>
            <type name="guint" c:type="guint"/>
          </parameter>
        </parameters>
      </constructor>
      <property name="domain"
                writable="1"
                construct-only="1"
                transfer-ownership="none">
        <type name="guint" c:type="guint"/>
      </property>
      <property name="grandmaster-clock-id" transfer-ownership="none">
        <type name="guint64" c:type="guint64"/>
      </property>
      <property name="internal-clock" transfer-ownership="none">
        <type name="Gst.Clock"/>
      </property>
      <property name="master-clock-id" transfer-ownership="none">
        <type name="guint64" c:type="guint64"/>
      </property>
      <field name="clock">
        <type name="Gst.SystemClock" c:type="GstSystemClock"/>
      </field>
      <field name="priv" readable="0" private="1">
        <type name="PtpClockPrivate" c:type="GstPtpClockPrivate*"/>
      </field>
      <field name="_gst_reserved" readable="0" private="1">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </class>
    <record name="PtpClockClass"
            c:type="GstPtpClockClass"
            glib:is-gtype-struct-for="PtpClock">
      <doc xml:space="preserve">Opaque #GstPtpClockClass structure.</doc>
      <field name="parent_class">
        <doc xml:space="preserve">parented to #GstSystemClockClass</doc>
        <type name="Gst.SystemClockClass" c:type="GstSystemClockClass"/>
      </field>
      <field name="_gst_reserved" readable="0" private="1">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <record name="PtpClockPrivate" c:type="GstPtpClockPrivate" disguised="1">
    </record>
    <callback name="PtpStatisticsCallback" c:type="GstPtpStatisticsCallback">
      <doc xml:space="preserve">The statistics can be the following structures:

GST_PTP_STATISTICS_NEW_DOMAIN_FOUND:
"domain"                G_TYPE_UINT          The domain identifier of the domain
"clock"                 GST_TYPE_CLOCK       The internal clock that is slaved to the
                                             PTP domain

GST_PTP_STATISTICS_BEST_MASTER_CLOCK_SELECTED:
"domain"                G_TYPE_UINT          The domain identifier of the domain
"master-clock-id"       G_TYPE_UINT64        PTP clock identifier of the selected master
                                             clock
"master-clock-port"     G_TYPE_UINT          PTP port number of the selected master clock
"grandmaster-clock-id"  G_TYPE_UINT64        PTP clock identifier of the grandmaster clock

GST_PTP_STATISTICS_PATH_DELAY_MEASURED:
"domain"                G_TYPE_UINT          The domain identifier of the domain
"mean-path-delay-avg"   GST_TYPE_CLOCK_TIME  Average mean path delay
"mean-path-delay"       GST_TYPE_CLOCK_TIME  Latest mean path delay
"delay-request-delay"   GST_TYPE_CLOCK_TIME  Delay of DELAY_REQ / DELAY_RESP messages

GST_PTP_STATISTICS_TIME_UPDATED:
"domain"                G_TYPE_UINT          The domain identifier of the domain
"mean-path-delay-avg"   GST_TYPE_CLOCK_TIME  Average mean path delay
"local-time"            GST_TYPE_CLOCK_TIME  Local time that corresponds to ptp-time
"ptp-time"              GST_TYPE_CLOCK_TIME  Newly measured PTP time at local-time
"estimated-ptp-time"    GST_TYPE_CLOCK_TIME  Estimated PTP time based on previous measurements
"discontinuity"         G_TYPE_INT64         Difference between estimated and measured PTP time
"synced"                G_TYPE_BOOLEAN       Currently synced to the remote clock
"r-squared"             G_TYPE_DOUBLE        R² of clock estimation regression
"internal-time"         GST_TYPE_CLOCK_TIME  Internal time clock parameter
"external-time"         GST_TYPE_CLOCK_TIME  External time clock parameter
"rate-num"              G_TYPE_UINT64        Internal/external rate numerator
"rate-den"              G_TYPE_UINT64        Internal/external rate denominator
"rate"                  G_TYPE_DOUBLE        Internal/external rate

If %FALSE is returned, the callback is removed and never called again.</doc>
      <return-value transfer-ownership="none">
        <type name="gboolean" c:type="gboolean"/>
      </return-value>
      <parameters>
        <parameter name="domain" transfer-ownership="none">
          <doc xml:space="preserve">PTP domain identifier</doc>
          <type name="guint8" c:type="guint8"/>
        </parameter>
        <parameter name="stats" transfer-ownership="none">
          <doc xml:space="preserve">New statistics</doc>
          <type name="Gst.Structure" c:type="const GstStructure*"/>
        </parameter>
        <parameter name="user_data"
                   transfer-ownership="none"
                   nullable="1"
                   allow-none="1"
                   closure="2">
          <doc xml:space="preserve">Data passed to gst_ptp_statistics_callback_add()</doc>
          <type name="gpointer" c:type="gpointer"/>
        </parameter>
      </parameters>
    </callback>
    <function name="buffer_add_net_address_meta"
              c:identifier="gst_buffer_add_net_address_meta">
      <doc xml:space="preserve">Attaches @addr as metadata in a #GstNetAddressMeta to @buffer.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">a #GstNetAddressMeta connected to @buffer</doc>
        <type name="NetAddressMeta" c:type="GstNetAddressMeta*"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">a #GstBuffer</doc>
          <type name="Gst.Buffer" c:type="GstBuffer*"/>
        </parameter>
        <parameter name="addr" transfer-ownership="none">
          <doc xml:space="preserve">a @GSocketAddress to connect to @buffer</doc>
          <type name="Gio.SocketAddress" c:type="GSocketAddress*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_add_net_control_message_meta"
              c:identifier="gst_buffer_add_net_control_message_meta">
      <doc xml:space="preserve">Attaches @message as metadata in a #GstNetControlMessageMeta to @buffer.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">a #GstNetControlMessageMeta connected to @buffer</doc>
        <type name="NetControlMessageMeta" c:type="GstNetControlMessageMeta*"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">a #GstBuffer</doc>
          <type name="Gst.Buffer" c:type="GstBuffer*"/>
        </parameter>
        <parameter name="message" transfer-ownership="none">
          <doc xml:space="preserve">a @GSocketControlMessage to attach to @buffer</doc>
          <type name="Gio.SocketControlMessage"
                c:type="GSocketControlMessage*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_get_net_address_meta"
              c:identifier="gst_buffer_get_net_address_meta">
      <doc xml:space="preserve">Find the #GstNetAddressMeta on @buffer.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the #GstNetAddressMeta or %NULL when there
is no such metadata on @buffer.</doc>
        <type name="NetAddressMeta" c:type="GstNetAddressMeta*"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">a #GstBuffer</doc>
          <type name="Gst.Buffer" c:type="GstBuffer*"/>
        </parameter>
      </parameters>
    </function>
    <function name="net_address_meta_api_get_type"
              c:identifier="gst_net_address_meta_api_get_type">
      <return-value transfer-ownership="none">
        <type name="GType" c:type="GType"/>
      </return-value>
    </function>
    <function name="net_address_meta_get_info"
              c:identifier="gst_net_address_meta_get_info"
              moved-to="NetAddressMeta.get_info">
      <return-value transfer-ownership="none">
        <type name="Gst.MetaInfo" c:type="const GstMetaInfo*"/>
      </return-value>
    </function>
    <function name="net_control_message_meta_api_get_type"
              c:identifier="gst_net_control_message_meta_api_get_type">
      <return-value transfer-ownership="none">
        <type name="GType" c:type="GType"/>
      </return-value>
    </function>
    <function name="net_control_message_meta_get_info"
              c:identifier="gst_net_control_message_meta_get_info"
              moved-to="NetControlMessageMeta.get_info">
      <return-value transfer-ownership="none">
        <type name="Gst.MetaInfo" c:type="const GstMetaInfo*"/>
      </return-value>
    </function>
    <function name="net_time_packet_receive"
              c:identifier="gst_net_time_packet_receive"
              moved-to="NetTimePacket.receive"
              throws="1">
      <doc xml:space="preserve">Receives a #GstNetTimePacket over a socket. Handles interrupted system
calls, but otherwise returns NULL on error.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">a new #GstNetTimePacket, or NULL on error. Free
   with gst_net_time_packet_free() when done.</doc>
        <type name="NetTimePacket" c:type="GstNetTimePacket*"/>
      </return-value>
      <parameters>
        <parameter name="socket" transfer-ownership="none">
          <doc xml:space="preserve">socket to receive the time packet on</doc>
          <type name="Gio.Socket" c:type="GSocket*"/>
        </parameter>
        <parameter name="src_address"
                   direction="out"
                   caller-allocates="0"
                   transfer-ownership="full">
          <doc xml:space="preserve">address of variable to return sender address</doc>
          <type name="Gio.SocketAddress" c:type="GSocketAddress**"/>
        </parameter>
      </parameters>
    </function>
    <function name="ptp_deinit" c:identifier="gst_ptp_deinit" version="1.6">
      <doc xml:space="preserve">Deinitialize the GStreamer PTP subsystem and stop the PTP clock. If there
are any remaining GstPtpClock instances, they won't be further synchronized
to the PTP network clock.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
    </function>
    <function name="ptp_init" c:identifier="gst_ptp_init" version="1.6">
      <doc xml:space="preserve">Initialize the GStreamer PTP subsystem and create a PTP ordinary clock in
slave-only mode for all domains on the given @interfaces with the
given @clock_id.

If @clock_id is %GST_PTP_CLOCK_ID_NONE, a clock id is automatically
generated from the MAC address of the first network interface.

This function is automatically called by gst_ptp_clock_new() with default
parameters if it wasn't called before.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%TRUE if the GStreamer PTP clock subsystem could be initialized.</doc>
        <type name="gboolean" c:type="gboolean"/>
      </return-value>
      <parameters>
        <parameter name="clock_id" transfer-ownership="none">
          <doc xml:space="preserve">PTP clock id of this process' clock or %GST_PTP_CLOCK_ID_NONE</doc>
          <type name="guint64" c:type="guint64"/>
        </parameter>
        <parameter name="interfaces"
                   transfer-ownership="none"
                   nullable="1"
                   allow-none="1">
          <doc xml:space="preserve">network interfaces to run the clock on</doc>
          <array c:type="gchar**">
            <type name="utf8" c:type="gchar*"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ptp_is_initialized"
              c:identifier="gst_ptp_is_initialized"
              version="1.6">
      <doc xml:space="preserve">Check if the GStreamer PTP clock subsystem is initialized.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%TRUE if the GStreamer PTP clock subsystem is intialized.</doc>
        <type name="gboolean" c:type="gboolean"/>
      </return-value>
    </function>
    <function name="ptp_is_supported"
              c:identifier="gst_ptp_is_supported"
              version="1.6">
      <doc xml:space="preserve">Check if PTP clocks are generally supported on this system, and if previous
initializations did not fail.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%TRUE if PTP clocks are generally supported on this system, and
previous initializations did not fail.</doc>
        <type name="gboolean" c:type="gboolean"/>
      </return-value>
    </function>
    <function name="ptp_statistics_callback_add"
              c:identifier="gst_ptp_statistics_callback_add"
              version="1.6">
      <doc xml:space="preserve">Installs a new statistics callback for gathering PTP statistics. See
GstPtpStatisticsCallback for a list of statistics that are provided.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Id for the callback that can be passed to
gst_ptp_statistics_callback_remove()</doc>
        <type name="gulong" c:type="gulong"/>
      </return-value>
      <parameters>
        <parameter name="callback"
                   transfer-ownership="none"
                   scope="notified"
                   closure="1"
                   destroy="2">
          <doc xml:space="preserve">GstPtpStatisticsCallback to call</doc>
          <type name="PtpStatisticsCallback"
                c:type="GstPtpStatisticsCallback"/>
        </parameter>
        <parameter name="user_data"
                   transfer-ownership="none"
                   nullable="1"
                   allow-none="1">
          <doc xml:space="preserve">Data to pass to the callback</doc>
          <type name="gpointer" c:type="gpointer"/>
        </parameter>
        <parameter name="destroy_data" transfer-ownership="none" scope="async">
          <doc xml:space="preserve">GDestroyNotify to destroy the data</doc>
          <type name="GLib.DestroyNotify" c:type="GDestroyNotify"/>
        </parameter>
      </parameters>
    </function>
    <function name="ptp_statistics_callback_remove"
              c:identifier="gst_ptp_statistics_callback_remove"
              version="1.6">
      <doc xml:space="preserve">Removes a PTP statistics callback that was previously added with
gst_ptp_statistics_callback_add().</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="id" transfer-ownership="none">
          <doc xml:space="preserve">Callback id to remove</doc>
          <type name="gulong" c:type="gulong"/>
        </parameter>
      </parameters>
    </function>
  </namespace>
</repository>