factor/unmaintained/gstreamer/plugins/interfaces/GstInterfaces-0.10.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="GLib" version="2.0"/>
  <include name="GModule" version="2.0"/>
  <include name="GObject" version="2.0"/>
  <include name="Gst" version="0.10"/>
  <include name="libxml2" version="2.0"/>
  <package name="gstreamer-interfaces-0.10"/>
  <c:include name="gst/interfaces/colorbalance.h"/>
  <c:include name="gst/interfaces/colorbalancechannel.h"/>
  <c:include name="gst/interfaces/interfaces-enumtypes.h"/>
  <c:include name="gst/interfaces/mixer.h"/>
  <c:include name="gst/interfaces/mixeroptions.h"/>
  <c:include name="gst/interfaces/mixertrack.h"/>
  <c:include name="gst/interfaces/navigation.h"/>
  <c:include name="gst/interfaces/propertyprobe.h"/>
  <c:include name="gst/interfaces/streamvolume.h"/>
  <c:include name="gst/interfaces/tuner.h"/>
  <c:include name="gst/interfaces/tunerchannel.h"/>
  <c:include name="gst/interfaces/tunernorm.h"/>
  <c:include name="gst/interfaces/videoorientation.h"/>
  <c:include name="gst/interfaces/xoverlay.h"/>
  <namespace name="GstInterfaces"
             version="0.10"
             shared-library="libgstinterfaces-0.10.so.0"
             c:identifier-prefixes="Gst"
             c:symbol-prefixes="gst">
    <interface name="ColorBalance"
               c:symbol-prefix="color_balance"
               c:type="GstColorBalance"
               glib:type-name="GstColorBalance"
               glib:get-type="gst_color_balance_get_type">
      <prerequisite name="Gst.Element"/>
      <prerequisite name="Gst.ImplementsInterface"/>
      <method name="get_balance_type"
              c:identifier="gst_color_balance_get_balance_type"
              version="0.10.24">
        <doc xml:whitespace="preserve">Get the #GstColorBalanceType of this implementation.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">A the #GstColorBalanceType.</doc>
          <type name="ColorBalanceType" c:type="GstColorBalanceType"/>
        </return-value>
      </method>
      <method name="get_value" c:identifier="gst_color_balance_get_value">
        <doc xml:whitespace="preserve">Retrieve the current value of the indicated channel, between min_value
and max_value.
#GstColorBalanceChannel::max_value members of the
#GstColorBalanceChannel object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">The current value of the channel.</doc>
          <type name="gint" c:type="gint"/>
        </return-value>
        <parameters>
          <parameter name="channel" transfer-ownership="none">
            <doc xml:whitespace="preserve">A #GstColorBalanceChannel instance</doc>
            <type name="ColorBalanceChannel" c:type="GstColorBalanceChannel*"/>
          </parameter>
        </parameters>
      </method>
      <method name="list_channels"
              c:identifier="gst_color_balance_list_channels">
        <doc xml:whitespace="preserve">Retrieve a list of the available channels.
The list is owned by the #GstColorBalance instance and must not
be freed.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">A GList containing pointers to #GstColorBalanceChannel objects.</doc>
          <type name="GLib.List" c:type="GList*">
            <type name="gpointer" c:type="gpointer"/>
          </type>
        </return-value>
      </method>
      <method name="set_value" c:identifier="gst_color_balance_set_value">
        <doc xml:whitespace="preserve">Sets the current value of the channel to the passed value, which must
be between min_value and max_value.
#GstColorBalanceChannel::max_value members of the
#GstColorBalanceChannel object.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="channel" transfer-ownership="none">
            <doc xml:whitespace="preserve">A #GstColorBalanceChannel instance</doc>
            <type name="ColorBalanceChannel" c:type="GstColorBalanceChannel*"/>
          </parameter>
          <parameter name="value" transfer-ownership="none">
            <doc xml:whitespace="preserve">The new value for the channel.</doc>
            <type name="gint" c:type="gint"/>
          </parameter>
        </parameters>
      </method>
      <method name="value_changed"
              c:identifier="gst_color_balance_value_changed">
        <doc xml:whitespace="preserve">A helper function called by implementations of the GstColorBalance
interface. It fires the #GstColorBalance::value-changed signal on the
instance, and the #GstColorBalanceChannel::value-changed signal on the
channel object.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="channel" transfer-ownership="none">
            <doc xml:whitespace="preserve">A #GstColorBalanceChannel whose value has changed</doc>
            <type name="ColorBalanceChannel" c:type="GstColorBalanceChannel*"/>
          </parameter>
          <parameter name="value" transfer-ownership="none">
            <doc xml:whitespace="preserve">The new value of the channel</doc>
            <type name="gint" c:type="gint"/>
          </parameter>
        </parameters>
      </method>
      <glib:signal name="value-changed">
        <doc xml:whitespace="preserve">Fired when the value of the indicated channel has changed.</doc>
        <return-value transfer-ownership="none">
          <type name="none"/>
        </return-value>
        <parameters>
          <parameter name="object" transfer-ownership="none">
            <doc xml:whitespace="preserve">The #GstColorBalanceChannel</doc>
            <type name="ColorBalanceChannel"/>
          </parameter>
          <parameter name="p0" transfer-ownership="none">
            <doc xml:whitespace="preserve">The new value</doc>
            <type name="gint"/>
          </parameter>
        </parameters>
      </glib:signal>
    </interface>
    <class name="ColorBalanceChannel"
           c:symbol-prefix="color_balance_channel"
           c:type="GstColorBalanceChannel"
           parent="GObject.Object"
           glib:type-name="GstColorBalanceChannel"
           glib:get-type="gst_color_balance_channel_get_type"
           glib:type-struct="ColorBalanceChannelClass">
      <field name="parent">
        <type name="GObject.Object" c:type="GObject"/>
      </field>
      <field name="label">
        <type name="utf8" c:type="gchar*"/>
      </field>
      <field name="min_value">
        <type name="gint" c:type="gint"/>
      </field>
      <field name="max_value">
        <type name="gint" c:type="gint"/>
      </field>
      <glib:signal name="value-changed">
        <doc xml:whitespace="preserve">Fired when the value of the indicated channel has changed.</doc>
        <return-value transfer-ownership="none">
          <type name="none"/>
        </return-value>
        <parameters>
          <parameter name="object" transfer-ownership="none">
            <doc xml:whitespace="preserve">The new value</doc>
            <type name="gint"/>
          </parameter>
        </parameters>
      </glib:signal>
    </class>
    <record name="ColorBalanceChannelClass"
            c:type="GstColorBalanceChannelClass"
            glib:is-gtype-struct-for="ColorBalanceChannel">
      <field name="parent">
        <type name="GObject.ObjectClass" c:type="GObjectClass"/>
      </field>
      <field name="value_changed">
        <callback name="value_changed">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="channel" transfer-ownership="none">
              <type name="ColorBalanceChannel"
                    c:type="GstColorBalanceChannel*"/>
            </parameter>
            <parameter name="value" transfer-ownership="none">
              <type name="gint" c:type="gint"/>
            </parameter>
          </parameters>
        </callback>
      </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="ColorBalanceClass" c:type="GstColorBalanceClass">
      <field name="klass" writable="1">
        <type name="GObject.TypeInterface" c:type="GTypeInterface"/>
      </field>
      <field name="balance_type" writable="1">
        <type name="ColorBalanceType" c:type="GstColorBalanceType"/>
      </field>
      <field name="list_channels">
        <callback name="list_channels">
          <return-value transfer-ownership="none">
            <type name="GLib.List" c:type="GList*">
              <type name="gpointer" c:type="gpointer"/>
            </type>
          </return-value>
          <parameters>
            <parameter name="balance" transfer-ownership="none">
              <type name="ColorBalance" c:type="GstColorBalance*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="set_value">
        <callback name="set_value">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="balance" transfer-ownership="none">
              <type name="ColorBalance" c:type="GstColorBalance*"/>
            </parameter>
            <parameter name="channel" transfer-ownership="none">
              <type name="ColorBalanceChannel"
                    c:type="GstColorBalanceChannel*"/>
            </parameter>
            <parameter name="value" transfer-ownership="none">
              <type name="gint" c:type="gint"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="get_value">
        <callback name="get_value">
          <return-value transfer-ownership="none">
            <type name="gint" c:type="gint"/>
          </return-value>
          <parameters>
            <parameter name="balance" transfer-ownership="none">
              <type name="ColorBalance" c:type="GstColorBalance*"/>
            </parameter>
            <parameter name="channel" transfer-ownership="none">
              <type name="ColorBalanceChannel"
                    c:type="GstColorBalanceChannel*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="value_changed">
        <callback name="value_changed">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="balance" transfer-ownership="none">
              <type name="ColorBalance" c:type="GstColorBalance*"/>
            </parameter>
            <parameter name="channel" transfer-ownership="none">
              <type name="ColorBalanceChannel"
                    c:type="GstColorBalanceChannel*"/>
            </parameter>
            <parameter name="value" transfer-ownership="none">
              <type name="gint" c:type="gint"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="_gst_reserved" writable="1">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <enumeration name="ColorBalanceType"
                 glib:type-name="GstColorBalanceType"
                 glib:get-type="gst_color_balance_type_get_type"
                 c:type="GstColorBalanceType">
      <doc xml:whitespace="preserve">An enumeration indicating whether an element implements color balancing
operations in software or in dedicated hardware. In general, dedicated
hardware implementations (such as those provided by xvimagesink) are
preferred.</doc>
      <member name="hardware"
              value="0"
              c:identifier="GST_COLOR_BALANCE_HARDWARE"
              glib:nick="hardware"/>
      <member name="software"
              value="1"
              c:identifier="GST_COLOR_BALANCE_SOFTWARE"
              glib:nick="software"/>
    </enumeration>
    <interface name="Mixer"
               c:symbol-prefix="mixer"
               c:type="GstMixer"
               glib:type-name="GstMixer"
               glib:get-type="gst_mixer_get_type">
      <prerequisite name="Gst.Element"/>
      <prerequisite name="Gst.ImplementsInterface"/>
      <method name="get_mixer_flags" c:identifier="gst_mixer_get_mixer_flags">
        <doc xml:whitespace="preserve">Get the set of supported flags for this mixer implementation.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">A set of or-ed GstMixerFlags for supported features.</doc>
          <type name="MixerFlags" c:type="GstMixerFlags"/>
        </return-value>
      </method>
      <method name="get_mixer_type"
              c:identifier="gst_mixer_get_mixer_type"
              version="0.10.24">
        <doc xml:whitespace="preserve">Get the #GstMixerType of this mixer implementation.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">A the #GstMixerType.</doc>
          <type name="MixerType" c:type="GstMixerType"/>
        </return-value>
      </method>
      <method name="get_option" c:identifier="gst_mixer_get_option">
        <doc xml:whitespace="preserve">Get the current value of a name/value option in the mixer.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">current value of the name/value option.</doc>
          <type name="utf8" c:type="gchar*"/>
        </return-value>
        <parameters>
          <parameter name="opts" transfer-ownership="none">
            <doc xml:whitespace="preserve">The #GstMixerOptions that we operate on.</doc>
            <type name="MixerOptions" c:type="GstMixerOptions*"/>
          </parameter>
        </parameters>
      </method>
      <method name="get_volume" c:identifier="gst_mixer_get_volume">
        <doc xml:whitespace="preserve">Get the current volume(s) on the given track.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="track" transfer-ownership="none">
            <doc xml:whitespace="preserve">the GstMixerTrack to get the volume from.</doc>
            <type name="MixerTrack" c:type="GstMixerTrack*"/>
          </parameter>
          <parameter name="volumes" transfer-ownership="none">
            <doc xml:whitespace="preserve">a pre-allocated array of integers (of size track-&gt;num_channels) to store the current volume of each channel in the given track in.</doc>
            <type name="gint" c:type="gint*"/>
          </parameter>
        </parameters>
      </method>
      <method name="list_tracks" c:identifier="gst_mixer_list_tracks">
        <doc xml:whitespace="preserve">Returns a list of available tracks for this mixer/element. Note
that it is allowed for sink (output) elements to only provide
the output tracks in this list. Likewise, for sources (inputs),
it is allowed to only provide input elements in this list.
The list is owned by the #GstMixer instance and must not be freed
or modified.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">A #GList consisting of zero or more #GstMixerTracks.</doc>
          <type name="GLib.List" c:type="GList*">
            <type name="gpointer" c:type="gpointer"/>
          </type>
        </return-value>
      </method>
      <method name="mixer_changed"
              c:identifier="gst_mixer_mixer_changed"
              version="0.10.18">
        <doc xml:whitespace="preserve">This function is called by the mixer implementation to produce
a notification message on the bus indicating that the list of available
mixer tracks for a given mixer object has changed. Applications should
rebuild their interface when they receive this message.
This function only works for GstElements that are implementing the
GstMixer interface, and the element needs to have been provided a bus.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
      </method>
      <method name="mute_toggled" c:identifier="gst_mixer_mute_toggled">
        <doc xml:whitespace="preserve">This function is called by the mixer implementation to produce
a notification message on the bus indicating that the given track
has changed mute state.
This function only works for GstElements that are implementing the
GstMixer interface, and the element needs to have been provided a bus.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="track" transfer-ownership="none">
            <doc xml:whitespace="preserve">the GstMixerTrack that has change mute state.</doc>
            <type name="MixerTrack" c:type="GstMixerTrack*"/>
          </parameter>
          <parameter name="mute" transfer-ownership="none">
            <doc xml:whitespace="preserve">the new state of the mute flag on the track</doc>
            <type name="gboolean" c:type="gboolean"/>
          </parameter>
        </parameters>
      </method>
      <method name="option_changed" c:identifier="gst_mixer_option_changed">
        <doc xml:whitespace="preserve">This function is called by the mixer implementation to produce
a notification message on the bus indicating that the given options
object has changed state. 
This function only works for GstElements that are implementing the
GstMixer interface, and the element needs to have been provided a bus.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="opts" transfer-ownership="none">
            <doc xml:whitespace="preserve">the GstMixerOptions that has changed value.</doc>
            <type name="MixerOptions" c:type="GstMixerOptions*"/>
          </parameter>
          <parameter name="value" transfer-ownership="none">
            <doc xml:whitespace="preserve">the new value of the GstMixerOptions.</doc>
            <type name="utf8" c:type="gchar*"/>
          </parameter>
        </parameters>
      </method>
      <method name="options_list_changed"
              c:identifier="gst_mixer_options_list_changed"
              version="0.10.18">
        <doc xml:whitespace="preserve">This function is called by the mixer implementation to produce
a notification message on the bus indicating that the list of possible
options of a given options object has changed.
The new options are not contained in the message on purpose. Applications
should call gst_mixer_option_get_values() on @opts to make @opts update
its internal state and obtain the new list of values.
This function only works for GstElements that are implementing the
GstMixer interface, and the element needs to have been provided a bus
for this to work.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="opts" transfer-ownership="none">
            <doc xml:whitespace="preserve">the GstMixerOptions whose list of values has changed</doc>
            <type name="MixerOptions" c:type="GstMixerOptions*"/>
          </parameter>
        </parameters>
      </method>
      <method name="record_toggled" c:identifier="gst_mixer_record_toggled">
        <doc xml:whitespace="preserve">This function is called by the mixer implementation to produce
a notification message on the bus indicating that the given track
has changed recording state.
This function only works for GstElements that are implementing the
GstMixer interface, and the element needs to have been provided a bus.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="track" transfer-ownership="none">
            <doc xml:whitespace="preserve">the GstMixerTrack that has changed recording state.</doc>
            <type name="MixerTrack" c:type="GstMixerTrack*"/>
          </parameter>
          <parameter name="record" transfer-ownership="none">
            <doc xml:whitespace="preserve">the new state of the record flag on the track</doc>
            <type name="gboolean" c:type="gboolean"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_mute" c:identifier="gst_mixer_set_mute">
        <doc xml:whitespace="preserve">Mutes or unmutes the given channel. To find out whether a
track is currently muted, use GST_MIXER_TRACK_HAS_FLAG ().</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="track" transfer-ownership="none">
            <doc xml:whitespace="preserve">the #GstMixerTrack to operate on.</doc>
            <type name="MixerTrack" c:type="GstMixerTrack*"/>
          </parameter>
          <parameter name="mute" transfer-ownership="none">
            <doc xml:whitespace="preserve">a boolean value indicating whether to turn on or off muting.</doc>
            <type name="gboolean" c:type="gboolean"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_option" c:identifier="gst_mixer_set_option">
        <doc xml:whitespace="preserve">Sets a name/value option in the mixer to the requested value.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="opts" transfer-ownership="none">
            <doc xml:whitespace="preserve">The #GstMixerOptions that we operate on.</doc>
            <type name="MixerOptions" c:type="GstMixerOptions*"/>
          </parameter>
          <parameter name="value" transfer-ownership="none">
            <doc xml:whitespace="preserve">The requested new option value.</doc>
            <type name="utf8" c:type="gchar*"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_record" c:identifier="gst_mixer_set_record">
        <doc xml:whitespace="preserve">Enables or disables recording on the given track. Note that
this is only possible on input tracks, not on output tracks
(see GST_MIXER_TRACK_HAS_FLAG () and the GST_MIXER_TRACK_INPUT
flag).</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="track" transfer-ownership="none">
            <doc xml:whitespace="preserve">the #GstMixerTrack to operate on.</doc>
            <type name="MixerTrack" c:type="GstMixerTrack*"/>
          </parameter>
          <parameter name="record" transfer-ownership="none">
            <doc xml:whitespace="preserve">a boolean value that indicates whether to turn on or off recording.</doc>
            <type name="gboolean" c:type="gboolean"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_volume" c:identifier="gst_mixer_set_volume">
        <doc xml:whitespace="preserve">Sets the volume on each channel in a track. Short note about
the mixer/element, such as 'Line-in' or 'Microphone'. A
channel is said to be a mono-stream inside this track. A
stereo track thus contains two channels.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="track" transfer-ownership="none">
            <doc xml:whitespace="preserve">The #GstMixerTrack to set the volume on.</doc>
            <type name="MixerTrack" c:type="GstMixerTrack*"/>
          </parameter>
          <parameter name="volumes" transfer-ownership="none">
            <doc xml:whitespace="preserve">an array of integers (of size track-&gt;num_channels) that gives the wanted volume for each channel in this track.</doc>
            <type name="gint" c:type="gint*"/>
          </parameter>
        </parameters>
      </method>
      <method name="volume_changed" c:identifier="gst_mixer_volume_changed">
        <doc xml:whitespace="preserve">This function is called by the mixer implementation to produce
a notification message on the bus indicating that the volume(s) for the
given track have changed.
This function only works for GstElements that are implementing the
GstMixer interface, and the element needs to have been provided a bus.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="track" transfer-ownership="none">
            <doc xml:whitespace="preserve">the GstMixerTrack that has changed.</doc>
            <type name="MixerTrack" c:type="GstMixerTrack*"/>
          </parameter>
          <parameter name="volumes" transfer-ownership="none">
            <doc xml:whitespace="preserve">Array of volume values, one per channel on the mixer track.</doc>
            <type name="gint" c:type="gint*"/>
          </parameter>
        </parameters>
      </method>
      <glib:signal name="mute-toggled">
        <return-value transfer-ownership="none">
          <type name="none"/>
        </return-value>
        <parameters>
          <parameter name="object" transfer-ownership="none">
            <type name="MixerTrack"/>
          </parameter>
          <parameter name="p0" transfer-ownership="none">
            <type name="gboolean"/>
          </parameter>
        </parameters>
      </glib:signal>
      <glib:signal name="option-changed">
        <return-value transfer-ownership="none">
          <type name="none"/>
        </return-value>
        <parameters>
          <parameter name="object" transfer-ownership="none">
            <type name="MixerOptions"/>
          </parameter>
          <parameter name="p0" transfer-ownership="none">
            <type name="utf8"/>
          </parameter>
        </parameters>
      </glib:signal>
      <glib:signal name="record-toggled">
        <return-value transfer-ownership="none">
          <type name="none"/>
        </return-value>
        <parameters>
          <parameter name="object" transfer-ownership="none">
            <type name="MixerTrack"/>
          </parameter>
          <parameter name="p0" transfer-ownership="none">
            <type name="gboolean"/>
          </parameter>
        </parameters>
      </glib:signal>
      <glib:signal name="volume-changed">
        <return-value transfer-ownership="none">
          <type name="none"/>
        </return-value>
        <parameters>
          <parameter name="object" transfer-ownership="none">
            <type name="MixerTrack"/>
          </parameter>
          <parameter name="p0" transfer-ownership="none">
            <type name="gpointer"/>
          </parameter>
        </parameters>
      </glib:signal>
    </interface>
    <record name="MixerClass" c:type="GstMixerClass">
      <field name="klass" writable="1">
        <type name="GObject.TypeInterface" c:type="GTypeInterface"/>
      </field>
      <field name="mixer_type" writable="1">
        <type name="MixerType" c:type="GstMixerType"/>
      </field>
      <field name="list_tracks">
        <callback name="list_tracks">
          <return-value transfer-ownership="none">
            <type name="GLib.List" c:type="GList*">
              <type name="gpointer" c:type="gpointer"/>
            </type>
          </return-value>
          <parameters>
            <parameter name="mixer" transfer-ownership="none">
              <type name="Mixer" c:type="GstMixer*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="set_volume">
        <callback name="set_volume">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="mixer" transfer-ownership="none">
              <type name="Mixer" c:type="GstMixer*"/>
            </parameter>
            <parameter name="track" transfer-ownership="none">
              <type name="MixerTrack" c:type="GstMixerTrack*"/>
            </parameter>
            <parameter name="volumes" transfer-ownership="none">
              <type name="gint" c:type="gint*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="get_volume">
        <callback name="get_volume">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="mixer" transfer-ownership="none">
              <type name="Mixer" c:type="GstMixer*"/>
            </parameter>
            <parameter name="track" transfer-ownership="none">
              <type name="MixerTrack" c:type="GstMixerTrack*"/>
            </parameter>
            <parameter name="volumes" transfer-ownership="none">
              <type name="gint" c:type="gint*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="set_mute">
        <callback name="set_mute">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="mixer" transfer-ownership="none">
              <type name="Mixer" c:type="GstMixer*"/>
            </parameter>
            <parameter name="track" transfer-ownership="none">
              <type name="MixerTrack" c:type="GstMixerTrack*"/>
            </parameter>
            <parameter name="mute" transfer-ownership="none">
              <type name="gboolean" c:type="gboolean"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="set_record">
        <callback name="set_record">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="mixer" transfer-ownership="none">
              <type name="Mixer" c:type="GstMixer*"/>
            </parameter>
            <parameter name="track" transfer-ownership="none">
              <type name="MixerTrack" c:type="GstMixerTrack*"/>
            </parameter>
            <parameter name="record" transfer-ownership="none">
              <type name="gboolean" c:type="gboolean"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="mute_toggled">
        <callback name="mute_toggled">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="mixer" transfer-ownership="none">
              <type name="Mixer" c:type="GstMixer*"/>
            </parameter>
            <parameter name="channel" transfer-ownership="none">
              <type name="MixerTrack" c:type="GstMixerTrack*"/>
            </parameter>
            <parameter name="mute" transfer-ownership="none">
              <type name="gboolean" c:type="gboolean"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="record_toggled">
        <callback name="record_toggled">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="mixer" transfer-ownership="none">
              <type name="Mixer" c:type="GstMixer*"/>
            </parameter>
            <parameter name="channel" transfer-ownership="none">
              <type name="MixerTrack" c:type="GstMixerTrack*"/>
            </parameter>
            <parameter name="record" transfer-ownership="none">
              <type name="gboolean" c:type="gboolean"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="volume_changed">
        <callback name="volume_changed">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="mixer" transfer-ownership="none">
              <type name="Mixer" c:type="GstMixer*"/>
            </parameter>
            <parameter name="channel" transfer-ownership="none">
              <type name="MixerTrack" c:type="GstMixerTrack*"/>
            </parameter>
            <parameter name="volumes" transfer-ownership="none">
              <type name="gint" c:type="gint*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="set_option">
        <callback name="set_option">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="mixer" transfer-ownership="none">
              <type name="Mixer" c:type="GstMixer*"/>
            </parameter>
            <parameter name="opts" transfer-ownership="none">
              <type name="MixerOptions" c:type="GstMixerOptions*"/>
            </parameter>
            <parameter name="value" transfer-ownership="none">
              <type name="utf8" c:type="gchar*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="get_option">
        <callback name="get_option">
          <return-value transfer-ownership="none">
            <type name="utf8" c:type="gchar*"/>
          </return-value>
          <parameters>
            <parameter name="mixer" transfer-ownership="none">
              <type name="Mixer" c:type="GstMixer*"/>
            </parameter>
            <parameter name="opts" transfer-ownership="none">
              <type name="MixerOptions" c:type="GstMixerOptions*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="option_changed">
        <callback name="option_changed">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="mixer" transfer-ownership="none">
              <type name="Mixer" c:type="GstMixer*"/>
            </parameter>
            <parameter name="opts" transfer-ownership="none">
              <type name="MixerOptions" c:type="GstMixerOptions*"/>
            </parameter>
            <parameter name="option" transfer-ownership="none">
              <type name="utf8" c:type="gchar*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="get_mixer_flags">
        <callback name="get_mixer_flags">
          <return-value transfer-ownership="none">
            <type name="MixerFlags" c:type="GstMixerFlags"/>
          </return-value>
          <parameters>
            <parameter name="mixer" transfer-ownership="none">
              <type name="Mixer" c:type="GstMixer*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="_gst_reserved" writable="1">
        <array zero-terminated="0" c:type="gpointer" fixed-size="3">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <bitfield name="MixerFlags"
              version="0.10.14"
              glib:type-name="GstMixerFlags"
              glib:get-type="gst_mixer_flags_get_type"
              c:type="GstMixerFlags">
      <doc xml:whitespace="preserve">Flags indicating which optional features are supported by a mixer
implementation.</doc>
      <member name="none"
              value="0"
              c:identifier="GST_MIXER_FLAG_NONE"
              glib:nick="none"/>
      <member name="auto_notifications"
              value="1"
              c:identifier="GST_MIXER_FLAG_AUTO_NOTIFICATIONS"
              glib:nick="auto-notifications"/>
      <member name="has_whitelist"
              value="2"
              c:identifier="GST_MIXER_FLAG_HAS_WHITELIST"
              glib:nick="has-whitelist"/>
      <member name="grouping"
              value="4"
              c:identifier="GST_MIXER_FLAG_GROUPING"
              glib:nick="grouping"/>
    </bitfield>
    <enumeration name="MixerMessageType"
                 version="0.10.14"
                 glib:type-name="GstMixerMessageType"
                 glib:get-type="gst_mixer_message_type_get_type"
                 c:type="GstMixerMessageType">
      <doc xml:whitespace="preserve">An enumeration for the type of a GstMixer message received on the bus</doc>
      <member name="invalid"
              value="0"
              c:identifier="GST_MIXER_MESSAGE_INVALID"
              glib:nick="invalid"/>
      <member name="mute_toggled"
              value="1"
              c:identifier="GST_MIXER_MESSAGE_MUTE_TOGGLED"
              glib:nick="mute-toggled"/>
      <member name="record_toggled"
              value="2"
              c:identifier="GST_MIXER_MESSAGE_RECORD_TOGGLED"
              glib:nick="record-toggled"/>
      <member name="volume_changed"
              value="3"
              c:identifier="GST_MIXER_MESSAGE_VOLUME_CHANGED"
              glib:nick="volume-changed"/>
      <member name="option_changed"
              value="4"
              c:identifier="GST_MIXER_MESSAGE_OPTION_CHANGED"
              glib:nick="option-changed"/>
      <member name="options_list_changed"
              value="5"
              c:identifier="GST_MIXER_MESSAGE_OPTIONS_LIST_CHANGED"
              glib:nick="options-list-changed"/>
      <member name="mixer_changed"
              value="6"
              c:identifier="GST_MIXER_MESSAGE_MIXER_CHANGED"
              glib:nick="mixer-changed"/>
    </enumeration>
    <class name="MixerOptions"
           c:symbol-prefix="mixer_options"
           c:type="GstMixerOptions"
           parent="MixerTrack"
           glib:type-name="GstMixerOptions"
           glib:get-type="gst_mixer_options_get_type"
           glib:type-struct="MixerOptionsClass">
      <virtual-method name="get_values"
                      invoker="get_values"
                      introspectable="0">
        <doc xml:whitespace="preserve">Get the values for the mixer option.
option. You must not free or modify the list or its contents, it belongs
to the @mixer_options object.</doc>
        <return-value>
          <doc xml:whitespace="preserve">A list of strings with all the possible values for the mixer</doc>
          <type name="GLib.List" c:type="GList*">
            <type name="gpointer" c:type="gpointer"/>
          </type>
        </return-value>
      </virtual-method>
      <method name="get_values"
              c:identifier="gst_mixer_options_get_values"
              introspectable="0">
        <doc xml:whitespace="preserve">Get the values for the mixer option.
option. You must not free or modify the list or its contents, it belongs
to the @mixer_options object.</doc>
        <return-value>
          <doc xml:whitespace="preserve">A list of strings with all the possible values for the mixer</doc>
          <type name="GLib.List" c:type="GList*">
            <type name="gpointer" c:type="gpointer"/>
          </type>
        </return-value>
      </method>
      <field name="parent">
        <type name="MixerTrack" c:type="GstMixerTrack"/>
      </field>
      <field name="values">
        <type name="GLib.List" c:type="GList*">
          <type name="gpointer" c:type="gpointer"/>
        </type>
      </field>
      <field name="_gst_reserved">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </class>
    <record name="MixerOptionsClass"
            c:type="GstMixerOptionsClass"
            glib:is-gtype-struct-for="MixerOptions">
      <field name="parent">
        <type name="MixerTrackClass" c:type="GstMixerTrackClass"/>
      </field>
      <field name="get_values" introspectable="0">
        <callback name="get_values" introspectable="0">
          <return-value>
            <doc xml:whitespace="preserve">A list of strings with all the possible values for the mixer</doc>
            <type name="GLib.List" c:type="GList*">
              <type name="gpointer" c:type="gpointer"/>
            </type>
          </return-value>
          <parameters>
            <parameter name="opts" transfer-ownership="none">
              <type name="MixerOptions" c:type="GstMixerOptions*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="_gst_reserved">
        <array zero-terminated="0" c:type="gpointer" fixed-size="3">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <class name="MixerTrack"
           c:symbol-prefix="mixer_track"
           c:type="GstMixerTrack"
           parent="GObject.Object"
           glib:type-name="GstMixerTrack"
           glib:get-type="gst_mixer_track_get_type"
           glib:type-struct="MixerTrackClass">
      <property name="flags" transfer-ownership="none">
        <type name="guint"/>
      </property>
      <property name="index"
                writable="1"
                construct-only="1"
                transfer-ownership="none">
        <type name="guint"/>
      </property>
      <property name="label" transfer-ownership="none">
        <type name="utf8"/>
      </property>
      <property name="max-volume" transfer-ownership="none">
        <type name="gint"/>
      </property>
      <property name="min-volume" transfer-ownership="none">
        <type name="gint"/>
      </property>
      <property name="num-channels" transfer-ownership="none">
        <type name="gint"/>
      </property>
      <property name="untranslated-label"
                writable="1"
                construct-only="1"
                transfer-ownership="none">
        <type name="utf8"/>
      </property>
      <field name="parent">
        <type name="GObject.Object" c:type="GObject"/>
      </field>
      <field name="label">
        <type name="utf8" c:type="gchar*"/>
      </field>
      <field name="flags">
        <type name="MixerTrackFlags" c:type="GstMixerTrackFlags"/>
      </field>
      <field name="num_channels">
        <type name="gint" c:type="gint"/>
      </field>
      <field name="min_volume">
        <type name="gint" c:type="gint"/>
      </field>
      <field name="max_volume">
        <type name="gint" c:type="gint"/>
      </field>
    </class>
    <record name="MixerTrackClass"
            c:type="GstMixerTrackClass"
            glib:is-gtype-struct-for="MixerTrack">
      <field name="parent">
        <type name="GObject.ObjectClass" c:type="GObjectClass"/>
      </field>
      <field name="_gst_reserved">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <bitfield name="MixerTrackFlags"
              glib:type-name="GstMixerTrackFlags"
              glib:get-type="gst_mixer_track_flags_get_type"
              c:type="GstMixerTrackFlags">
      <doc xml:whitespace="preserve">Mixer track flags.</doc>
      <member name="input"
              value="1"
              c:identifier="GST_MIXER_TRACK_INPUT"
              glib:nick="input"/>
      <member name="output"
              value="2"
              c:identifier="GST_MIXER_TRACK_OUTPUT"
              glib:nick="output"/>
      <member name="mute"
              value="4"
              c:identifier="GST_MIXER_TRACK_MUTE"
              glib:nick="mute"/>
      <member name="record"
              value="8"
              c:identifier="GST_MIXER_TRACK_RECORD"
              glib:nick="record"/>
      <member name="master"
              value="16"
              c:identifier="GST_MIXER_TRACK_MASTER"
              glib:nick="master"/>
      <member name="software"
              value="32"
              c:identifier="GST_MIXER_TRACK_SOFTWARE"
              glib:nick="software"/>
      <member name="no_record"
              value="64"
              c:identifier="GST_MIXER_TRACK_NO_RECORD"
              glib:nick="no-record"/>
      <member name="no_mute"
              value="128"
              c:identifier="GST_MIXER_TRACK_NO_MUTE"
              glib:nick="no-mute"/>
      <member name="whitelist"
              value="256"
              c:identifier="GST_MIXER_TRACK_WHITELIST"
              glib:nick="whitelist"/>
      <member name="readonly"
              value="512"
              c:identifier="GST_MIXER_TRACK_READONLY"
              glib:nick="readonly"/>
      <member name="writeonly"
              value="1024"
              c:identifier="GST_MIXER_TRACK_WRITEONLY"
              glib:nick="writeonly"/>
    </bitfield>
    <enumeration name="MixerType"
                 glib:type-name="GstMixerType"
                 glib:get-type="gst_mixer_type_get_type"
                 c:type="GstMixerType">
      <member name="hardware"
              value="0"
              c:identifier="GST_MIXER_HARDWARE"
              glib:nick="hardware"/>
      <member name="software"
              value="1"
              c:identifier="GST_MIXER_SOFTWARE"
              glib:nick="software"/>
    </enumeration>
    <interface name="Navigation"
               c:symbol-prefix="navigation"
               c:type="GstNavigation"
               glib:type-name="GstNavigation"
               glib:get-type="gst_navigation_get_type"
               glib:type-struct="NavigationInterface">
      <virtual-method name="send_event" invoker="send_event">
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="structure" transfer-ownership="none">
            <type name="Gst.Structure" c:type="GstStructure*"/>
          </parameter>
        </parameters>
      </virtual-method>
      <method name="send_command"
              c:identifier="gst_navigation_send_command"
              version="0.10.23">
        <doc xml:whitespace="preserve">Sends the indicated command to the navigation interface.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="command" transfer-ownership="none">
            <doc xml:whitespace="preserve">The command to issue</doc>
            <type name="NavigationCommand" c:type="GstNavigationCommand"/>
          </parameter>
        </parameters>
      </method>
      <method name="send_event" c:identifier="gst_navigation_send_event">
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="structure" transfer-ownership="none">
            <type name="Gst.Structure" c:type="GstStructure*"/>
          </parameter>
        </parameters>
      </method>
      <method name="send_key_event"
              c:identifier="gst_navigation_send_key_event">
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="event" transfer-ownership="none">
            <doc xml:whitespace="preserve">The type of the key event. Recognised values are "key-press" and "key-release"</doc>
            <type name="utf8" c:type="char*"/>
          </parameter>
          <parameter name="key" transfer-ownership="none">
            <doc xml:whitespace="preserve">Character representation of the key. This is typically as produced by XKeysymToString.</doc>
            <type name="utf8" c:type="char*"/>
          </parameter>
        </parameters>
      </method>
      <method name="send_mouse_event"
              c:identifier="gst_navigation_send_mouse_event">
        <doc xml:whitespace="preserve">Sends a mouse event to the navigation interface. Mouse event coordinates
are sent relative to the display space of the related output area. This is
usually the size in pixels of the window associated with the element
implementing the #GstNavigation interface.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="event" transfer-ownership="none">
            <doc xml:whitespace="preserve">The type of mouse event, as a text string. Recognised values are "mouse-button-press", "mouse-button-release" and "mouse-move".</doc>
            <type name="utf8" c:type="char*"/>
          </parameter>
          <parameter name="button" transfer-ownership="none">
            <doc xml:whitespace="preserve">The button number of the button being pressed or released. Pass 0 for mouse-move events.</doc>
            <type name="gint" c:type="int"/>
          </parameter>
          <parameter name="x" transfer-ownership="none">
            <doc xml:whitespace="preserve">The x coordinate of the mouse event.</doc>
            <type name="gdouble" c:type="double"/>
          </parameter>
          <parameter name="y" transfer-ownership="none">
            <doc xml:whitespace="preserve">The y coordinate of the mouse event.</doc>
            <type name="gdouble" c:type="double"/>
          </parameter>
        </parameters>
      </method>
    </interface>
    <enumeration name="NavigationCommand"
                 version="0.10.23"
                 glib:type-name="GstNavigationCommand"
                 glib:get-type="gst_navigation_command_get_type"
                 c:type="GstNavigationCommand">
      <doc xml:whitespace="preserve">A set of commands that may be issued to an element providing the
#GstNavigation interface. The available commands can be queried via
the gst_navigation_query_new_commands() query.
For convenience in handling DVD navigation, the MENU commands are aliased as:
GST_NAVIGATION_COMMAND_DVD_MENU            = @GST_NAVIGATION_COMMAND_MENU1
GST_NAVIGATION_COMMAND_DVD_TITLE_MENU      = @GST_NAVIGATION_COMMAND_MENU2
GST_NAVIGATION_COMMAND_DVD_ROOT_MENU       = @GST_NAVIGATION_COMMAND_MENU3
GST_NAVIGATION_COMMAND_DVD_SUBPICTURE_MENU = @GST_NAVIGATION_COMMAND_MENU4
GST_NAVIGATION_COMMAND_DVD_AUDIO_MENU      = @GST_NAVIGATION_COMMAND_MENU5
GST_NAVIGATION_COMMAND_DVD_ANGLE_MENU      = @GST_NAVIGATION_COMMAND_MENU6
GST_NAVIGATION_COMMAND_DVD_CHAPTER_MENU    = @GST_NAVIGATION_COMMAND_MENU7</doc>
      <member name="invalid"
              value="0"
              c:identifier="GST_NAVIGATION_COMMAND_INVALID"
              glib:nick="invalid"/>
      <member name="menu1"
              value="1"
              c:identifier="GST_NAVIGATION_COMMAND_MENU1"
              glib:nick="menu1"/>
      <member name="menu2"
              value="2"
              c:identifier="GST_NAVIGATION_COMMAND_MENU2"
              glib:nick="menu2"/>
      <member name="menu3"
              value="3"
              c:identifier="GST_NAVIGATION_COMMAND_MENU3"
              glib:nick="menu3"/>
      <member name="menu4"
              value="4"
              c:identifier="GST_NAVIGATION_COMMAND_MENU4"
              glib:nick="menu4"/>
      <member name="menu5"
              value="5"
              c:identifier="GST_NAVIGATION_COMMAND_MENU5"
              glib:nick="menu5"/>
      <member name="menu6"
              value="6"
              c:identifier="GST_NAVIGATION_COMMAND_MENU6"
              glib:nick="menu6"/>
      <member name="menu7"
              value="7"
              c:identifier="GST_NAVIGATION_COMMAND_MENU7"
              glib:nick="menu7"/>
      <member name="left"
              value="20"
              c:identifier="GST_NAVIGATION_COMMAND_LEFT"
              glib:nick="left"/>
      <member name="right"
              value="21"
              c:identifier="GST_NAVIGATION_COMMAND_RIGHT"
              glib:nick="right"/>
      <member name="up"
              value="22"
              c:identifier="GST_NAVIGATION_COMMAND_UP"
              glib:nick="up"/>
      <member name="down"
              value="23"
              c:identifier="GST_NAVIGATION_COMMAND_DOWN"
              glib:nick="down"/>
      <member name="activate"
              value="24"
              c:identifier="GST_NAVIGATION_COMMAND_ACTIVATE"
              glib:nick="activate"/>
      <member name="prev_angle"
              value="30"
              c:identifier="GST_NAVIGATION_COMMAND_PREV_ANGLE"
              glib:nick="prev-angle"/>
      <member name="next_angle"
              value="31"
              c:identifier="GST_NAVIGATION_COMMAND_NEXT_ANGLE"
              glib:nick="next-angle"/>
    </enumeration>
    <enumeration name="NavigationEventType"
                 version="0.10.23"
                 glib:type-name="GstNavigationEventType"
                 glib:get-type="gst_navigation_event_type_get_type"
                 c:type="GstNavigationEventType">
      <doc xml:whitespace="preserve">Enum values for the various events that an element implementing the
GstNavigation interface might send up the pipeline.</doc>
      <member name="invalid"
              value="0"
              c:identifier="GST_NAVIGATION_EVENT_INVALID"
              glib:nick="invalid"/>
      <member name="key_press"
              value="1"
              c:identifier="GST_NAVIGATION_EVENT_KEY_PRESS"
              glib:nick="key-press"/>
      <member name="key_release"
              value="2"
              c:identifier="GST_NAVIGATION_EVENT_KEY_RELEASE"
              glib:nick="key-release"/>
      <member name="mouse_button_press"
              value="3"
              c:identifier="GST_NAVIGATION_EVENT_MOUSE_BUTTON_PRESS"
              glib:nick="mouse-button-press"/>
      <member name="mouse_button_release"
              value="4"
              c:identifier="GST_NAVIGATION_EVENT_MOUSE_BUTTON_RELEASE"
              glib:nick="mouse-button-release"/>
      <member name="mouse_move"
              value="5"
              c:identifier="GST_NAVIGATION_EVENT_MOUSE_MOVE"
              glib:nick="mouse-move"/>
      <member name="command"
              value="6"
              c:identifier="GST_NAVIGATION_EVENT_COMMAND"
              glib:nick="command"/>
    </enumeration>
    <record name="NavigationInterface"
            c:type="GstNavigationInterface"
            glib:is-gtype-struct-for="Navigation">
      <field name="g_iface">
        <type name="GObject.TypeInterface" c:type="GTypeInterface"/>
      </field>
      <field name="send_event">
        <callback name="send_event">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="navigation" transfer-ownership="none">
              <type name="Navigation" c:type="GstNavigation*"/>
            </parameter>
            <parameter name="structure" transfer-ownership="none">
              <type name="Gst.Structure" c:type="GstStructure*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="_gst_reserved">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <enumeration name="NavigationMessageType"
                 version="0.10.23"
                 glib:type-name="GstNavigationMessageType"
                 glib:get-type="gst_navigation_message_type_get_type"
                 c:type="GstNavigationMessageType">
      <doc xml:whitespace="preserve">A set of notifications that may be received on the bus when navigation
related status changes.</doc>
      <member name="invalid"
              value="0"
              c:identifier="GST_NAVIGATION_MESSAGE_INVALID"
              glib:nick="invalid"/>
      <member name="mouse_over"
              value="1"
              c:identifier="GST_NAVIGATION_MESSAGE_MOUSE_OVER"
              glib:nick="mouse-over"/>
      <member name="commands_changed"
              value="2"
              c:identifier="GST_NAVIGATION_MESSAGE_COMMANDS_CHANGED"
              glib:nick="commands-changed"/>
      <member name="angles_changed"
              value="3"
              c:identifier="GST_NAVIGATION_MESSAGE_ANGLES_CHANGED"
              glib:nick="angles-changed"/>
    </enumeration>
    <enumeration name="NavigationQueryType"
                 glib:type-name="GstNavigationQueryType"
                 glib:get-type="gst_navigation_query_type_get_type"
                 c:type="GstNavigationQueryType">
      <member name="invalid"
              value="0"
              c:identifier="GST_NAVIGATION_QUERY_INVALID"
              glib:nick="invalid"/>
      <member name="commands"
              value="1"
              c:identifier="GST_NAVIGATION_QUERY_COMMANDS"
              glib:nick="commands"/>
      <member name="angles"
              value="2"
              c:identifier="GST_NAVIGATION_QUERY_ANGLES"
              glib:nick="angles"/>
    </enumeration>
    <interface name="PropertyProbe"
               c:symbol-prefix="property_probe"
               c:type="GstPropertyProbe"
               glib:type-name="GstPropertyProbe"
               glib:get-type="gst_property_probe_get_type"
               glib:type-struct="PropertyProbeInterface">
      <doc xml:whitespace="preserve">Opaque #GstPropertyProbe data structure.</doc>
      <virtual-method name="get_properties" invoker="get_properties">
        <doc xml:whitespace="preserve">Get a list of properties for which probing is supported.
by this element.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">the list of properties for which probing is supported</doc>
          <type name="GLib.List" c:type="GList*">
            <type name="gpointer" c:type="gpointer"/>
          </type>
        </return-value>
      </virtual-method>
      <virtual-method name="get_values">
        <return-value transfer-ownership="full">
          <type name="GObject.ValueArray" c:type="GValueArray*"/>
        </return-value>
        <parameters>
          <parameter name="prop_id" transfer-ownership="none">
            <type name="guint" c:type="guint"/>
          </parameter>
          <parameter name="pspec" transfer-ownership="none">
            <type name="GObject.ParamSpec" c:type="GParamSpec*"/>
          </parameter>
        </parameters>
      </virtual-method>
      <virtual-method name="needs_probe">
        <return-value transfer-ownership="none">
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="prop_id" transfer-ownership="none">
            <type name="guint" c:type="guint"/>
          </parameter>
          <parameter name="pspec" transfer-ownership="none">
            <type name="GObject.ParamSpec" c:type="GParamSpec*"/>
          </parameter>
        </parameters>
      </virtual-method>
      <virtual-method name="probe_property">
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="prop_id" transfer-ownership="none">
            <type name="guint" c:type="guint"/>
          </parameter>
          <parameter name="pspec" transfer-ownership="none">
            <type name="GObject.ParamSpec" c:type="GParamSpec*"/>
          </parameter>
        </parameters>
      </virtual-method>
      <method name="get_properties"
              c:identifier="gst_property_probe_get_properties">
        <doc xml:whitespace="preserve">Get a list of properties for which probing is supported.
by this element.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">the list of properties for which probing is supported</doc>
          <type name="GLib.List" c:type="GList*">
            <type name="gpointer" c:type="gpointer"/>
          </type>
        </return-value>
      </method>
      <method name="get_property"
              c:identifier="gst_property_probe_get_property">
        <doc xml:whitespace="preserve">Get #GParamSpec for a property for which probing is supported.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">the #GParamSpec of %NULL.</doc>
          <type name="GObject.ParamSpec" c:type="GParamSpec*"/>
        </return-value>
        <parameters>
          <parameter name="name" transfer-ownership="none">
            <doc xml:whitespace="preserve">name of the property.</doc>
            <type name="utf8" c:type="gchar*"/>
          </parameter>
        </parameters>
      </method>
      <method name="get_values" c:identifier="gst_property_probe_get_values">
        <doc xml:whitespace="preserve">Gets the possible (probed) values for the given property,
requires the property to have been probed before.</doc>
        <return-value transfer-ownership="full">
          <doc xml:whitespace="preserve">A list of valid values for the given property.</doc>
          <type name="GObject.ValueArray" c:type="GValueArray*"/>
        </return-value>
        <parameters>
          <parameter name="pspec" transfer-ownership="none">
            <doc xml:whitespace="preserve">the #GParamSpec property identifier.</doc>
            <type name="GObject.ParamSpec" c:type="GParamSpec*"/>
          </parameter>
        </parameters>
      </method>
      <method name="get_values_name"
              c:identifier="gst_property_probe_get_values_name">
        <doc xml:whitespace="preserve">Same as gst_property_probe_get_values ().</doc>
        <return-value transfer-ownership="full">
          <doc xml:whitespace="preserve">A list of valid values for the given property.</doc>
          <type name="GObject.ValueArray" c:type="GValueArray*"/>
        </return-value>
        <parameters>
          <parameter name="name" transfer-ownership="none">
            <doc xml:whitespace="preserve">the name of the property to get values for.</doc>
            <type name="utf8" c:type="gchar*"/>
          </parameter>
        </parameters>
      </method>
      <method name="needs_probe" c:identifier="gst_property_probe_needs_probe">
        <doc xml:whitespace="preserve">Checks whether a property needs a probe. This might be because
the property wasn't initialized before, or because host setup
changed. This might be, for example, because a new device was
added, and thus device probing needs to be refreshed to display
the new device.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">TRUE if the property needs a new probe, FALSE if not.</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="pspec" transfer-ownership="none">
            <doc xml:whitespace="preserve">a #GParamSpec that identifies the property to check.</doc>
            <type name="GObject.ParamSpec" c:type="GParamSpec*"/>
          </parameter>
        </parameters>
      </method>
      <method name="needs_probe_name"
              c:identifier="gst_property_probe_needs_probe_name">
        <doc xml:whitespace="preserve">Same as gst_property_probe_needs_probe ().</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">TRUE if the property needs a new probe, FALSE if not.</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="name" transfer-ownership="none">
            <doc xml:whitespace="preserve">the name of the property to check.</doc>
            <type name="utf8" c:type="gchar*"/>
          </parameter>
        </parameters>
      </method>
      <method name="probe_and_get_values"
              c:identifier="gst_property_probe_probe_and_get_values">
        <doc xml:whitespace="preserve">Check whether the given property requires a new probe. If so,
fo the probe. After that, retrieve a value list. Meant as a
utility function that wraps the above functions.</doc>
        <return-value transfer-ownership="full">
          <doc xml:whitespace="preserve">the list of valid values for this property.</doc>
          <type name="GObject.ValueArray" c:type="GValueArray*"/>
        </return-value>
        <parameters>
          <parameter name="pspec" transfer-ownership="none">
            <doc xml:whitespace="preserve">The #GParamSpec property identifier.</doc>
            <type name="GObject.ParamSpec" c:type="GParamSpec*"/>
          </parameter>
        </parameters>
      </method>
      <method name="probe_and_get_values_name"
              c:identifier="gst_property_probe_probe_and_get_values_name">
        <doc xml:whitespace="preserve">Same as gst_property_probe_probe_and_get_values ().</doc>
        <return-value transfer-ownership="full">
          <doc xml:whitespace="preserve">the list of valid values for this property.</doc>
          <type name="GObject.ValueArray" c:type="GValueArray*"/>
        </return-value>
        <parameters>
          <parameter name="name" transfer-ownership="none">
            <doc xml:whitespace="preserve">the name of the property to get values for.</doc>
            <type name="utf8" c:type="gchar*"/>
          </parameter>
        </parameters>
      </method>
      <method name="probe_property"
              c:identifier="gst_property_probe_probe_property">
        <doc xml:whitespace="preserve">Runs a probe on the property specified by @pspec</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="pspec" transfer-ownership="none">
            <doc xml:whitespace="preserve">#GParamSpec of the property.</doc>
            <type name="GObject.ParamSpec" c:type="GParamSpec*"/>
          </parameter>
        </parameters>
      </method>
      <method name="probe_property_name"
              c:identifier="gst_property_probe_probe_property_name">
        <doc xml:whitespace="preserve">Runs a probe on the property specified by @name.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="name" transfer-ownership="none">
            <doc xml:whitespace="preserve">name of the property.</doc>
            <type name="utf8" c:type="gchar*"/>
          </parameter>
        </parameters>
      </method>
      <glib:signal name="probe-needed">
        <return-value transfer-ownership="none">
          <type name="none"/>
        </return-value>
        <parameters>
          <parameter name="object" transfer-ownership="none">
            <type name="gpointer"/>
          </parameter>
        </parameters>
      </glib:signal>
    </interface>
    <record name="PropertyProbeInterface"
            c:type="GstPropertyProbeInterface"
            glib:is-gtype-struct-for="PropertyProbe">
      <doc xml:whitespace="preserve">#GstPropertyProbe interface.</doc>
      <field name="klass">
        <type name="GObject.TypeInterface" c:type="GTypeInterface"/>
      </field>
      <field name="probe_needed">
        <callback name="probe_needed">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="probe" transfer-ownership="none">
              <type name="PropertyProbe" c:type="GstPropertyProbe*"/>
            </parameter>
            <parameter name="pspec" transfer-ownership="none">
              <type name="GObject.ParamSpec" c:type="GParamSpec*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="get_properties">
        <callback name="get_properties">
          <return-value transfer-ownership="none">
            <doc xml:whitespace="preserve">the list of properties for which probing is supported</doc>
            <type name="GLib.List" c:type="GList*">
              <type name="gpointer" c:type="gpointer"/>
            </type>
          </return-value>
          <parameters>
            <parameter name="probe" transfer-ownership="none">
              <type name="PropertyProbe" c:type="GstPropertyProbe*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="needs_probe">
        <callback name="needs_probe">
          <return-value transfer-ownership="none">
            <type name="gboolean" c:type="gboolean"/>
          </return-value>
          <parameters>
            <parameter name="probe" transfer-ownership="none">
              <type name="PropertyProbe" c:type="GstPropertyProbe*"/>
            </parameter>
            <parameter name="prop_id" transfer-ownership="none">
              <type name="guint" c:type="guint"/>
            </parameter>
            <parameter name="pspec" transfer-ownership="none">
              <type name="GObject.ParamSpec" c:type="GParamSpec*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="probe_property">
        <callback name="probe_property">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="probe" transfer-ownership="none">
              <type name="PropertyProbe" c:type="GstPropertyProbe*"/>
            </parameter>
            <parameter name="prop_id" transfer-ownership="none">
              <type name="guint" c:type="guint"/>
            </parameter>
            <parameter name="pspec" transfer-ownership="none">
              <type name="GObject.ParamSpec" c:type="GParamSpec*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="get_values">
        <callback name="get_values">
          <return-value transfer-ownership="full">
            <type name="GObject.ValueArray" c:type="GValueArray*"/>
          </return-value>
          <parameters>
            <parameter name="probe" transfer-ownership="none">
              <type name="PropertyProbe" c:type="GstPropertyProbe*"/>
            </parameter>
            <parameter name="prop_id" transfer-ownership="none">
              <type name="guint" c:type="guint"/>
            </parameter>
            <parameter name="pspec" transfer-ownership="none">
              <type name="GObject.ParamSpec" c:type="GParamSpec*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="_gst_reserved">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <interface name="StreamVolume"
               c:symbol-prefix="stream_volume"
               c:type="GstStreamVolume"
               glib:type-name="GstStreamVolume"
               glib:get-type="gst_stream_volume_get_type"
               glib:type-struct="StreamVolumeInterface">
      <method name="get_mute"
              c:identifier="gst_stream_volume_get_mute"
              version="0.10.25">
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">Returns %TRUE if the stream is muted</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
      </method>
      <method name="get_volume"
              c:identifier="gst_stream_volume_get_volume"
              version="0.10.25">
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">The current stream volume as linear factor</doc>
          <type name="gdouble" c:type="gdouble"/>
        </return-value>
        <parameters>
          <parameter name="format" transfer-ownership="none">
            <doc xml:whitespace="preserve">#GstStreamVolumeFormat which should be returned</doc>
            <type name="StreamVolumeFormat" c:type="GstStreamVolumeFormat"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_mute"
              c:identifier="gst_stream_volume_set_mute"
              version="0.10.25">
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="mute" transfer-ownership="none">
            <doc xml:whitespace="preserve">Mute state that should be set</doc>
            <type name="gboolean" c:type="gboolean"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_volume"
              c:identifier="gst_stream_volume_set_volume"
              version="0.10.25">
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="format" transfer-ownership="none">
            <doc xml:whitespace="preserve">#GstStreamVolumeFormat of @val</doc>
            <type name="StreamVolumeFormat" c:type="GstStreamVolumeFormat"/>
          </parameter>
          <parameter name="val" transfer-ownership="none">
            <doc xml:whitespace="preserve">Linear volume factor that should be set</doc>
            <type name="gdouble" c:type="gdouble"/>
          </parameter>
        </parameters>
      </method>
      <property name="mute" writable="1" transfer-ownership="none">
        <type name="gboolean"/>
      </property>
      <property name="volume" writable="1" transfer-ownership="none">
        <type name="gdouble"/>
      </property>
    </interface>
    <enumeration name="StreamVolumeFormat"
                 version="0.10.25"
                 glib:type-name="GstStreamVolumeFormat"
                 glib:get-type="gst_stream_volume_format_get_type"
                 c:type="GstStreamVolumeFormat">
      <doc xml:whitespace="preserve">Different representations of a stream volume. gst_stream_volume_convert()
allows to convert between the different representations.
Formulas to convert from a linear to a cubic or dB volume are
cbrt(val) and 20 * log10 (val).</doc>
      <member name="linear"
              value="0"
              c:identifier="GST_STREAM_VOLUME_FORMAT_LINEAR"
              glib:nick="linear"/>
      <member name="cubic"
              value="1"
              c:identifier="GST_STREAM_VOLUME_FORMAT_CUBIC"
              glib:nick="cubic"/>
      <member name="db"
              value="2"
              c:identifier="GST_STREAM_VOLUME_FORMAT_DB"
              glib:nick="db"/>
    </enumeration>
    <record name="StreamVolumeInterface"
            c:type="GstStreamVolumeInterface"
            glib:is-gtype-struct-for="StreamVolume">
      <field name="parent">
        <type name="GObject.TypeInterface" c:type="GTypeInterface"/>
      </field>
      <field name="_gst_reserved">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <interface name="Tuner"
               c:symbol-prefix="tuner"
               c:type="GstTuner"
               glib:type-name="GstTuner"
               glib:get-type="gst_tuner_get_type">
      <prerequisite name="Gst.Element"/>
      <prerequisite name="Gst.ImplementsInterface"/>
      <method name="channel_changed" c:identifier="gst_tuner_channel_changed">
        <doc xml:whitespace="preserve">Called by elements implementing the #GstTuner interface when the
current channel changes. Fires the #GstTuner::channel-changed signal.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="channel" transfer-ownership="none">
            <doc xml:whitespace="preserve">A #GstTunerChannel instance</doc>
            <type name="TunerChannel" c:type="GstTunerChannel*"/>
          </parameter>
        </parameters>
      </method>
      <method name="find_channel_by_name"
              c:identifier="gst_tuner_find_channel_by_name"
              introspectable="0">
        <doc xml:whitespace="preserve">Look up a #GstTunerChannel by name.
is available.</doc>
        <return-value>
          <doc xml:whitespace="preserve">A #GstTunerChannel, or NULL if no channel with the provided name</doc>
          <type name="TunerChannel" c:type="GstTunerChannel*"/>
        </return-value>
        <parameters>
          <parameter name="channel" transfer-ownership="none">
            <doc xml:whitespace="preserve">A string containing the name of a #GstTunerChannel</doc>
            <type name="utf8" c:type="gchar*"/>
          </parameter>
        </parameters>
      </method>
      <method name="find_norm_by_name"
              c:identifier="gst_tuner_find_norm_by_name"
              introspectable="0">
        <doc xml:whitespace="preserve">Look up a #GstTunerNorm by name.
is available.</doc>
        <return-value>
          <doc xml:whitespace="preserve">A #GstTunerNorm, or NULL if no norm with the provided name</doc>
          <type name="TunerNorm" c:type="GstTunerNorm*"/>
        </return-value>
        <parameters>
          <parameter name="norm" transfer-ownership="none">
            <doc xml:whitespace="preserve">A string containing the name of a #GstTunerNorm</doc>
            <type name="utf8" c:type="gchar*"/>
          </parameter>
        </parameters>
      </method>
      <method name="frequency_changed"
              c:identifier="gst_tuner_frequency_changed">
        <doc xml:whitespace="preserve">Called by elements implementing the #GstTuner interface when the
configured frequency changes. Fires the #GstTuner::frequency-changed
signal on the tuner, and the #GstTunerChannel::frequency-changed signal
on the channel.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="channel" transfer-ownership="none">
            <doc xml:whitespace="preserve">The current #GstTunerChannel</doc>
            <type name="TunerChannel" c:type="GstTunerChannel*"/>
          </parameter>
          <parameter name="frequency" transfer-ownership="none">
            <doc xml:whitespace="preserve">The new frequency setting</doc>
            <type name="gulong" c:type="gulong"/>
          </parameter>
        </parameters>
      </method>
      <method name="get_channel"
              c:identifier="gst_tuner_get_channel"
              introspectable="0">
        <doc xml:whitespace="preserve">Retrieve the current channel from the tuner.</doc>
        <return-value>
          <doc xml:whitespace="preserve">the current channel of the tuner object.</doc>
          <type name="TunerChannel" c:type="GstTunerChannel*"/>
        </return-value>
      </method>
      <method name="get_frequency" c:identifier="gst_tuner_get_frequency">
        <doc xml:whitespace="preserve">Retrieve the current frequency from the given channel. As for
gst_tuner_set_frequency(), the #GstTunerChannel must support frequency
operations, as indicated by the GST_TUNER_CHANNEL_FREQUENCY flag.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">The current frequency, or 0 on error.</doc>
          <type name="gulong" c:type="gulong"/>
        </return-value>
        <parameters>
          <parameter name="channel" transfer-ownership="none">
            <doc xml:whitespace="preserve">The #GstTunerChannel to retrieve the frequency from.</doc>
            <type name="TunerChannel" c:type="GstTunerChannel*"/>
          </parameter>
        </parameters>
      </method>
      <method name="get_norm"
              c:identifier="gst_tuner_get_norm"
              introspectable="0">
        <doc xml:whitespace="preserve">Get the current video norm from the given tuner object for the
currently selected channel.</doc>
        <return-value>
          <doc xml:whitespace="preserve">the current norm.</doc>
          <type name="TunerNorm" c:type="GstTunerNorm*"/>
        </return-value>
      </method>
      <method name="list_channels" c:identifier="gst_tuner_list_channels">
        <doc xml:whitespace="preserve">Retrieve a #GList of #GstTunerChannels available
(e.g. 'composite', 's-video', ...) from the given tuner object.
owned by the GstTuner and must not be freed.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">A list of channels available on this tuner. The list is</doc>
          <type name="GLib.List" c:type="GList*">
            <type name="gpointer" c:type="gpointer"/>
          </type>
        </return-value>
      </method>
      <method name="list_norms" c:identifier="gst_tuner_list_norms">
        <doc xml:whitespace="preserve">Retrieve a GList of available #GstTunerNorm settings for the currently
tuned channel on the given tuner object.
tuner object. The list is owned by the GstTuner and must not
be freed.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">A list of norms available on the current channel for this</doc>
          <type name="GLib.List" c:type="GList*">
            <type name="gpointer" c:type="gpointer"/>
          </type>
        </return-value>
      </method>
      <method name="norm_changed" c:identifier="gst_tuner_norm_changed">
        <doc xml:whitespace="preserve">Called by elements implementing the #GstTuner interface when the
current norm changes. Fires the #GstTuner::norm-changed signal.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="norm" transfer-ownership="none">
            <doc xml:whitespace="preserve">A #GstTunerNorm instance</doc>
            <type name="TunerNorm" c:type="GstTunerNorm*"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_channel" c:identifier="gst_tuner_set_channel">
        <doc xml:whitespace="preserve">Tunes the object to the given channel, which should be one of the
channels returned by gst_tuner_list_channels().</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="channel" transfer-ownership="none">
            <doc xml:whitespace="preserve">the channel to tune to.</doc>
            <type name="TunerChannel" c:type="GstTunerChannel*"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_frequency" c:identifier="gst_tuner_set_frequency">
        <doc xml:whitespace="preserve">Sets a tuning frequency on the given tuner/channel. Note that this
requires the given channel to be a "tuning" channel, which can be
checked using GST_TUNER_CHANNEL_HAS_FLAG (), with the proper flag
being GST_TUNER_CHANNEL_FREQUENCY.
The frequency is in Hz, with minimum steps indicated by the 
frequency_multiplicator provided in the #GstTunerChannel. The
valid range is provided in the min_frequency and max_frequency properties
of the #GstTunerChannel.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="channel" transfer-ownership="none">
            <doc xml:whitespace="preserve">The #GstTunerChannel to set the frequency on.</doc>
            <type name="TunerChannel" c:type="GstTunerChannel*"/>
          </parameter>
          <parameter name="frequency" transfer-ownership="none">
            <doc xml:whitespace="preserve">The frequency to tune in to.</doc>
            <type name="gulong" c:type="gulong"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_norm" c:identifier="gst_tuner_set_norm">
        <doc xml:whitespace="preserve">Changes the video norm on this tuner to the given norm, which should be
one of the norms returned by gst_tuner_list_norms().</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="norm" transfer-ownership="none">
            <doc xml:whitespace="preserve">the norm to use for the current channel.</doc>
            <type name="TunerNorm" c:type="GstTunerNorm*"/>
          </parameter>
        </parameters>
      </method>
      <method name="signal_changed" c:identifier="gst_tuner_signal_changed">
        <doc xml:whitespace="preserve">Called by elements implementing the #GstTuner interface when the
incoming signal strength changes. Fires the #GstTuner::signal-changed
signal on the tuner and the #GstTunerChannel::signal-changed signal on 
the channel.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <parameter name="channel" transfer-ownership="none">
            <doc xml:whitespace="preserve">The current #GstTunerChannel</doc>
            <type name="TunerChannel" c:type="GstTunerChannel*"/>
          </parameter>
          <parameter name="signal" transfer-ownership="none">
            <doc xml:whitespace="preserve">The new signal strength</doc>
            <type name="gint" c:type="gint"/>
          </parameter>
        </parameters>
      </method>
      <method name="signal_strength" c:identifier="gst_tuner_signal_strength">
        <doc xml:whitespace="preserve">Get the strength of the signal on this channel. Note that this
requires the current channel to be a "tuning" channel, i.e. a
channel on which frequency can be set. This can be checked using
GST_TUNER_CHANNEL_HAS_FLAG (), and the appropriate flag to check
for is GST_TUNER_CHANNEL_FREQUENCY.
The valid range of the signal strength is indicated in the 
min_signal and max_signal properties of the #GstTunerChannel.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">Signal strength, or 0 on error.</doc>
          <type name="gint" c:type="gint"/>
        </return-value>
        <parameters>
          <parameter name="channel" transfer-ownership="none">
            <doc xml:whitespace="preserve">the #GstTunerChannel to get the signal strength from.</doc>
            <type name="TunerChannel" c:type="GstTunerChannel*"/>
          </parameter>
        </parameters>
      </method>
      <glib:signal name="channel-changed">
        <doc xml:whitespace="preserve">Reports that the current #GstTunerChannel has changed.</doc>
        <return-value transfer-ownership="none">
          <type name="none"/>
        </return-value>
        <parameters>
          <parameter name="object" transfer-ownership="none">
            <doc xml:whitespace="preserve">The new configured channel.</doc>
            <type name="TunerChannel"/>
          </parameter>
        </parameters>
      </glib:signal>
      <glib:signal name="frequency-changed">
        <doc xml:whitespace="preserve">Reports that the current frequency has changed.</doc>
        <return-value transfer-ownership="none">
          <type name="none"/>
        </return-value>
        <parameters>
          <parameter name="object" transfer-ownership="none">
            <type name="TunerChannel"/>
          </parameter>
          <parameter name="p0" transfer-ownership="none">
            <type name="gulong"/>
          </parameter>
        </parameters>
      </glib:signal>
      <glib:signal name="norm-changed">
        <doc xml:whitespace="preserve">Reports that the current #GstTunerNorm has changed.</doc>
        <return-value transfer-ownership="none">
          <type name="none"/>
        </return-value>
        <parameters>
          <parameter name="object" transfer-ownership="none">
            <doc xml:whitespace="preserve">The new configured norm.</doc>
            <type name="TunerNorm"/>
          </parameter>
        </parameters>
      </glib:signal>
      <glib:signal name="signal-changed">
        <doc xml:whitespace="preserve">Reports that the signal strength has changed.</doc>
        <return-value transfer-ownership="none">
          <type name="none"/>
        </return-value>
        <parameters>
          <parameter name="object" transfer-ownership="none">
            <doc xml:whitespace="preserve">The current #GstTunerChannel</doc>
            <type name="TunerChannel"/>
          </parameter>
          <parameter name="p0" transfer-ownership="none">
            <doc xml:whitespace="preserve">The new signal strength (an integer)</doc>
            <type name="gint"/>
          </parameter>
        </parameters>
      </glib:signal>
    </interface>
    <class name="TunerChannel"
           c:symbol-prefix="tuner_channel"
           c:type="GstTunerChannel"
           parent="GObject.Object"
           glib:type-name="GstTunerChannel"
           glib:get-type="gst_tuner_channel_get_type"
           glib:type-struct="TunerChannelClass">
      <field name="parent">
        <type name="GObject.Object" c:type="GObject"/>
      </field>
      <field name="label">
        <type name="utf8" c:type="gchar*"/>
      </field>
      <field name="flags">
        <type name="TunerChannelFlags" c:type="GstTunerChannelFlags"/>
      </field>
      <field name="freq_multiplicator">
        <type name="gfloat" c:type="gfloat"/>
      </field>
      <field name="min_frequency">
        <type name="gulong" c:type="gulong"/>
      </field>
      <field name="max_frequency">
        <type name="gulong" c:type="gulong"/>
      </field>
      <field name="min_signal">
        <type name="gint" c:type="gint"/>
      </field>
      <field name="max_signal">
        <type name="gint" c:type="gint"/>
      </field>
      <glib:signal name="frequency-changed">
        <doc xml:whitespace="preserve">Reports that the current frequency has changed.</doc>
        <return-value transfer-ownership="none">
          <type name="none"/>
        </return-value>
        <parameters>
          <parameter name="object" transfer-ownership="none">
            <doc xml:whitespace="preserve">The new frequency (an unsigned long)</doc>
            <type name="gulong"/>
          </parameter>
        </parameters>
      </glib:signal>
      <glib:signal name="signal-changed">
        <doc xml:whitespace="preserve">Reports that the signal strength has changed.</doc>
        <return-value transfer-ownership="none">
          <type name="none"/>
        </return-value>
        <parameters>
          <parameter name="object" transfer-ownership="none">
            <doc xml:whitespace="preserve">The new signal strength (an integer)</doc>
            <type name="gint"/>
          </parameter>
        </parameters>
      </glib:signal>
    </class>
    <record name="TunerChannelClass"
            c:type="GstTunerChannelClass"
            glib:is-gtype-struct-for="TunerChannel">
      <field name="parent">
        <type name="GObject.ObjectClass" c:type="GObjectClass"/>
      </field>
      <field name="frequency_changed">
        <callback name="frequency_changed">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="channel" transfer-ownership="none">
              <type name="TunerChannel" c:type="GstTunerChannel*"/>
            </parameter>
            <parameter name="frequency" transfer-ownership="none">
              <type name="gulong" c:type="gulong"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="signal_changed">
        <callback name="signal_changed">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="channel" transfer-ownership="none">
              <type name="TunerChannel" c:type="GstTunerChannel*"/>
            </parameter>
            <parameter name="signal" transfer-ownership="none">
              <type name="gint" c:type="gint"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="_gst_reserved">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <bitfield name="TunerChannelFlags"
              glib:type-name="GstTunerChannelFlags"
              glib:get-type="gst_tuner_channel_flags_get_type"
              c:type="GstTunerChannelFlags">
      <doc xml:whitespace="preserve">An enumeration for flags indicating the available capabilities
of a #GstTunerChannel.</doc>
      <member name="input"
              value="1"
              c:identifier="GST_TUNER_CHANNEL_INPUT"
              glib:nick="input"/>
      <member name="output"
              value="2"
              c:identifier="GST_TUNER_CHANNEL_OUTPUT"
              glib:nick="output"/>
      <member name="frequency"
              value="4"
              c:identifier="GST_TUNER_CHANNEL_FREQUENCY"
              glib:nick="frequency"/>
      <member name="audio"
              value="8"
              c:identifier="GST_TUNER_CHANNEL_AUDIO"
              glib:nick="audio"/>
    </bitfield>
    <record name="TunerClass" c:type="GstTunerClass">
      <field name="klass" writable="1">
        <type name="GObject.TypeInterface" c:type="GTypeInterface"/>
      </field>
      <field name="list_channels">
        <callback name="list_channels">
          <return-value transfer-ownership="none">
            <type name="GLib.List" c:type="GList*">
              <type name="gpointer" c:type="gpointer"/>
            </type>
          </return-value>
          <parameters>
            <parameter name="tuner" transfer-ownership="none">
              <type name="Tuner" c:type="GstTuner*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="set_channel">
        <callback name="set_channel">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="tuner" transfer-ownership="none">
              <type name="Tuner" c:type="GstTuner*"/>
            </parameter>
            <parameter name="channel" transfer-ownership="none">
              <type name="TunerChannel" c:type="GstTunerChannel*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="get_channel" introspectable="0">
        <callback name="get_channel" introspectable="0">
          <return-value>
            <type name="TunerChannel" c:type="GstTunerChannel*"/>
          </return-value>
          <parameters>
            <parameter name="tuner" transfer-ownership="none">
              <type name="Tuner" c:type="GstTuner*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="list_norms">
        <callback name="list_norms">
          <return-value transfer-ownership="none">
            <type name="GLib.List" c:type="GList*">
              <type name="gpointer" c:type="gpointer"/>
            </type>
          </return-value>
          <parameters>
            <parameter name="tuner" transfer-ownership="none">
              <type name="Tuner" c:type="GstTuner*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="set_norm">
        <callback name="set_norm">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="tuner" transfer-ownership="none">
              <type name="Tuner" c:type="GstTuner*"/>
            </parameter>
            <parameter name="norm" transfer-ownership="none">
              <type name="TunerNorm" c:type="GstTunerNorm*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="get_norm" introspectable="0">
        <callback name="get_norm" introspectable="0">
          <return-value>
            <type name="TunerNorm" c:type="GstTunerNorm*"/>
          </return-value>
          <parameters>
            <parameter name="tuner" transfer-ownership="none">
              <type name="Tuner" c:type="GstTuner*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="set_frequency">
        <callback name="set_frequency">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="tuner" transfer-ownership="none">
              <type name="Tuner" c:type="GstTuner*"/>
            </parameter>
            <parameter name="channel" transfer-ownership="none">
              <type name="TunerChannel" c:type="GstTunerChannel*"/>
            </parameter>
            <parameter name="frequency" transfer-ownership="none">
              <type name="gulong" c:type="gulong"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="get_frequency">
        <callback name="get_frequency">
          <return-value transfer-ownership="none">
            <type name="gulong" c:type="gulong"/>
          </return-value>
          <parameters>
            <parameter name="tuner" transfer-ownership="none">
              <type name="Tuner" c:type="GstTuner*"/>
            </parameter>
            <parameter name="channel" transfer-ownership="none">
              <type name="TunerChannel" c:type="GstTunerChannel*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="signal_strength">
        <callback name="signal_strength">
          <return-value transfer-ownership="none">
            <type name="gint" c:type="gint"/>
          </return-value>
          <parameters>
            <parameter name="tuner" transfer-ownership="none">
              <type name="Tuner" c:type="GstTuner*"/>
            </parameter>
            <parameter name="channel" transfer-ownership="none">
              <type name="TunerChannel" c:type="GstTunerChannel*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="channel_changed">
        <callback name="channel_changed">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="tuner" transfer-ownership="none">
              <type name="Tuner" c:type="GstTuner*"/>
            </parameter>
            <parameter name="channel" transfer-ownership="none">
              <type name="TunerChannel" c:type="GstTunerChannel*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="norm_changed">
        <callback name="norm_changed">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="tuner" transfer-ownership="none">
              <type name="Tuner" c:type="GstTuner*"/>
            </parameter>
            <parameter name="norm" transfer-ownership="none">
              <type name="TunerNorm" c:type="GstTunerNorm*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="frequency_changed">
        <callback name="frequency_changed">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="tuner" transfer-ownership="none">
              <type name="Tuner" c:type="GstTuner*"/>
            </parameter>
            <parameter name="channel" transfer-ownership="none">
              <type name="TunerChannel" c:type="GstTunerChannel*"/>
            </parameter>
            <parameter name="frequency" transfer-ownership="none">
              <type name="gulong" c:type="gulong"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="signal_changed">
        <callback name="signal_changed">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="tuner" transfer-ownership="none">
              <type name="Tuner" c:type="GstTuner*"/>
            </parameter>
            <parameter name="channel" transfer-ownership="none">
              <type name="TunerChannel" c:type="GstTunerChannel*"/>
            </parameter>
            <parameter name="signal" transfer-ownership="none">
              <type name="gint" c:type="gint"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="_gst_reserved" writable="1">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <class name="TunerNorm"
           c:symbol-prefix="tuner_norm"
           c:type="GstTunerNorm"
           parent="GObject.Object"
           glib:type-name="GstTunerNorm"
           glib:get-type="gst_tuner_norm_get_type"
           glib:type-struct="TunerNormClass">
      <field name="parent">
        <type name="GObject.Object" c:type="GObject"/>
      </field>
      <field name="label">
        <type name="utf8" c:type="gchar*"/>
      </field>
      <field name="framerate">
        <type name="GObject.Value" c:type="GValue"/>
      </field>
    </class>
    <record name="TunerNormClass"
            c:type="GstTunerNormClass"
            glib:is-gtype-struct-for="TunerNorm">
      <field name="parent">
        <type name="GObject.ObjectClass" c:type="GObjectClass"/>
      </field>
      <field name="_gst_reserved">
        <array zero-terminated="0" c:type="gpointer" fixed-size="4">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <interface name="VideoOrientation"
               c:symbol-prefix="video_orientation"
               c:type="GstVideoOrientation"
               glib:type-name="GstVideoOrientation"
               glib:get-type="gst_video_orientation_get_type"
               glib:type-struct="VideoOrientationInterface">
      <doc xml:whitespace="preserve">Opaque #GstVideoOrientation data structure.</doc>
      <prerequisite name="Gst.Element"/>
      <prerequisite name="Gst.ImplementsInterface"/>
      <virtual-method name="get_hcenter"
                      invoker="get_hcenter"
                      version="0.10.11">
        <doc xml:whitespace="preserve">Get the horizontal centering offset from the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports centering</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="center" transfer-ownership="none">
            <doc xml:whitespace="preserve">return location for the result</doc>
            <type name="gint" c:type="gint*"/>
          </parameter>
        </parameters>
      </virtual-method>
      <virtual-method name="get_hflip" invoker="get_hflip" version="0.10.11">
        <doc xml:whitespace="preserve">Get the horizontal flipping state (%TRUE for flipped) from the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports flipping</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="flip" transfer-ownership="none">
            <doc xml:whitespace="preserve">return location for the result</doc>
            <type name="gboolean" c:type="gboolean*"/>
          </parameter>
        </parameters>
      </virtual-method>
      <virtual-method name="get_vcenter"
                      invoker="get_vcenter"
                      version="0.10.11">
        <doc xml:whitespace="preserve">Get the vertical centering offset from the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports centering</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="center" transfer-ownership="none">
            <doc xml:whitespace="preserve">return location for the result</doc>
            <type name="gint" c:type="gint*"/>
          </parameter>
        </parameters>
      </virtual-method>
      <virtual-method name="get_vflip" invoker="get_vflip" version="0.10.11">
        <doc xml:whitespace="preserve">Get the vertical flipping state (%TRUE for flipped) from the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports flipping</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="flip" transfer-ownership="none">
            <doc xml:whitespace="preserve">return location for the result</doc>
            <type name="gboolean" c:type="gboolean*"/>
          </parameter>
        </parameters>
      </virtual-method>
      <virtual-method name="set_hcenter"
                      invoker="set_hcenter"
                      version="0.10.11">
        <doc xml:whitespace="preserve">Set the horizontal centering offset for the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports centering</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="center" transfer-ownership="none">
            <doc xml:whitespace="preserve">centering offset</doc>
            <type name="gint" c:type="gint"/>
          </parameter>
        </parameters>
      </virtual-method>
      <virtual-method name="set_hflip" invoker="set_hflip" version="0.10.11">
        <doc xml:whitespace="preserve">Set the horizontal flipping state (%TRUE for flipped) for the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports flipping</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="flip" transfer-ownership="none">
            <doc xml:whitespace="preserve">use flipping</doc>
            <type name="gboolean" c:type="gboolean"/>
          </parameter>
        </parameters>
      </virtual-method>
      <virtual-method name="set_vcenter"
                      invoker="set_vcenter"
                      version="0.10.11">
        <doc xml:whitespace="preserve">Set the vertical centering offset for the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports centering</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="center" transfer-ownership="none">
            <doc xml:whitespace="preserve">centering offset</doc>
            <type name="gint" c:type="gint"/>
          </parameter>
        </parameters>
      </virtual-method>
      <virtual-method name="set_vflip" invoker="set_vflip" version="0.10.11">
        <doc xml:whitespace="preserve">Set the vertical flipping state (%TRUE for flipped) for the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports flipping</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="flip" transfer-ownership="none">
            <doc xml:whitespace="preserve">use flipping</doc>
            <type name="gboolean" c:type="gboolean"/>
          </parameter>
        </parameters>
      </virtual-method>
      <method name="get_hcenter"
              c:identifier="gst_video_orientation_get_hcenter"
              version="0.10.11">
        <doc xml:whitespace="preserve">Get the horizontal centering offset from the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports centering</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="center" transfer-ownership="none">
            <doc xml:whitespace="preserve">return location for the result</doc>
            <type name="gint" c:type="gint*"/>
          </parameter>
        </parameters>
      </method>
      <method name="get_hflip"
              c:identifier="gst_video_orientation_get_hflip"
              version="0.10.11">
        <doc xml:whitespace="preserve">Get the horizontal flipping state (%TRUE for flipped) from the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports flipping</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="flip" transfer-ownership="none">
            <doc xml:whitespace="preserve">return location for the result</doc>
            <type name="gboolean" c:type="gboolean*"/>
          </parameter>
        </parameters>
      </method>
      <method name="get_vcenter"
              c:identifier="gst_video_orientation_get_vcenter"
              version="0.10.11">
        <doc xml:whitespace="preserve">Get the vertical centering offset from the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports centering</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="center" transfer-ownership="none">
            <doc xml:whitespace="preserve">return location for the result</doc>
            <type name="gint" c:type="gint*"/>
          </parameter>
        </parameters>
      </method>
      <method name="get_vflip"
              c:identifier="gst_video_orientation_get_vflip"
              version="0.10.11">
        <doc xml:whitespace="preserve">Get the vertical flipping state (%TRUE for flipped) from the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports flipping</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="flip" transfer-ownership="none">
            <doc xml:whitespace="preserve">return location for the result</doc>
            <type name="gboolean" c:type="gboolean*"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_hcenter"
              c:identifier="gst_video_orientation_set_hcenter"
              version="0.10.11">
        <doc xml:whitespace="preserve">Set the horizontal centering offset for the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports centering</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="center" transfer-ownership="none">
            <doc xml:whitespace="preserve">centering offset</doc>
            <type name="gint" c:type="gint"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_hflip"
              c:identifier="gst_video_orientation_set_hflip"
              version="0.10.11">
        <doc xml:whitespace="preserve">Set the horizontal flipping state (%TRUE for flipped) for the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports flipping</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="flip" transfer-ownership="none">
            <doc xml:whitespace="preserve">use flipping</doc>
            <type name="gboolean" c:type="gboolean"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_vcenter"
              c:identifier="gst_video_orientation_set_vcenter"
              version="0.10.11">
        <doc xml:whitespace="preserve">Set the vertical centering offset for the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports centering</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="center" transfer-ownership="none">
            <doc xml:whitespace="preserve">centering offset</doc>
            <type name="gint" c:type="gint"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_vflip"
              c:identifier="gst_video_orientation_set_vflip"
              version="0.10.11">
        <doc xml:whitespace="preserve">Set the vertical flipping state (%TRUE for flipped) for the given object.</doc>
        <return-value transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE in case the element supports flipping</doc>
          <type name="gboolean" c:type="gboolean"/>
        </return-value>
        <parameters>
          <parameter name="flip" transfer-ownership="none">
            <doc xml:whitespace="preserve">use flipping</doc>
            <type name="gboolean" c:type="gboolean"/>
          </parameter>
        </parameters>
      </method>
    </interface>
    <record name="VideoOrientationInterface"
            c:type="GstVideoOrientationInterface"
            glib:is-gtype-struct-for="VideoOrientation">
      <doc xml:whitespace="preserve">#GstVideoOrientationInterface interface.</doc>
      <field name="parent">
        <type name="GObject.TypeInterface" c:type="GTypeInterface"/>
      </field>
      <field name="get_hflip">
        <callback name="get_hflip">
          <return-value transfer-ownership="none">
            <doc xml:whitespace="preserve">%TRUE in case the element supports flipping</doc>
            <type name="gboolean" c:type="gboolean"/>
          </return-value>
          <parameters>
            <parameter name="video_orientation" transfer-ownership="none">
              <type name="VideoOrientation" c:type="GstVideoOrientation*"/>
            </parameter>
            <parameter name="flip" transfer-ownership="none">
              <doc xml:whitespace="preserve">return location for the result</doc>
              <type name="gboolean" c:type="gboolean*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="get_vflip">
        <callback name="get_vflip">
          <return-value transfer-ownership="none">
            <doc xml:whitespace="preserve">%TRUE in case the element supports flipping</doc>
            <type name="gboolean" c:type="gboolean"/>
          </return-value>
          <parameters>
            <parameter name="video_orientation" transfer-ownership="none">
              <type name="VideoOrientation" c:type="GstVideoOrientation*"/>
            </parameter>
            <parameter name="flip" transfer-ownership="none">
              <doc xml:whitespace="preserve">return location for the result</doc>
              <type name="gboolean" c:type="gboolean*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="get_hcenter">
        <callback name="get_hcenter">
          <return-value transfer-ownership="none">
            <doc xml:whitespace="preserve">%TRUE in case the element supports centering</doc>
            <type name="gboolean" c:type="gboolean"/>
          </return-value>
          <parameters>
            <parameter name="video_orientation" transfer-ownership="none">
              <type name="VideoOrientation" c:type="GstVideoOrientation*"/>
            </parameter>
            <parameter name="center" transfer-ownership="none">
              <doc xml:whitespace="preserve">return location for the result</doc>
              <type name="gint" c:type="gint*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="get_vcenter">
        <callback name="get_vcenter">
          <return-value transfer-ownership="none">
            <doc xml:whitespace="preserve">%TRUE in case the element supports centering</doc>
            <type name="gboolean" c:type="gboolean"/>
          </return-value>
          <parameters>
            <parameter name="video_orientation" transfer-ownership="none">
              <type name="VideoOrientation" c:type="GstVideoOrientation*"/>
            </parameter>
            <parameter name="center" transfer-ownership="none">
              <doc xml:whitespace="preserve">return location for the result</doc>
              <type name="gint" c:type="gint*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="set_hflip">
        <callback name="set_hflip">
          <return-value transfer-ownership="none">
            <doc xml:whitespace="preserve">%TRUE in case the element supports flipping</doc>
            <type name="gboolean" c:type="gboolean"/>
          </return-value>
          <parameters>
            <parameter name="video_orientation" transfer-ownership="none">
              <type name="VideoOrientation" c:type="GstVideoOrientation*"/>
            </parameter>
            <parameter name="flip" transfer-ownership="none">
              <doc xml:whitespace="preserve">use flipping</doc>
              <type name="gboolean" c:type="gboolean"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="set_vflip">
        <callback name="set_vflip">
          <return-value transfer-ownership="none">
            <doc xml:whitespace="preserve">%TRUE in case the element supports flipping</doc>
            <type name="gboolean" c:type="gboolean"/>
          </return-value>
          <parameters>
            <parameter name="video_orientation" transfer-ownership="none">
              <type name="VideoOrientation" c:type="GstVideoOrientation*"/>
            </parameter>
            <parameter name="flip" transfer-ownership="none">
              <doc xml:whitespace="preserve">use flipping</doc>
              <type name="gboolean" c:type="gboolean"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="set_hcenter">
        <callback name="set_hcenter">
          <return-value transfer-ownership="none">
            <doc xml:whitespace="preserve">%TRUE in case the element supports centering</doc>
            <type name="gboolean" c:type="gboolean"/>
          </return-value>
          <parameters>
            <parameter name="video_orientation" transfer-ownership="none">
              <type name="VideoOrientation" c:type="GstVideoOrientation*"/>
            </parameter>
            <parameter name="center" transfer-ownership="none">
              <doc xml:whitespace="preserve">centering offset</doc>
              <type name="gint" c:type="gint"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="set_vcenter">
        <callback name="set_vcenter">
          <return-value transfer-ownership="none">
            <doc xml:whitespace="preserve">%TRUE in case the element supports centering</doc>
            <type name="gboolean" c:type="gboolean"/>
          </return-value>
          <parameters>
            <parameter name="video_orientation" transfer-ownership="none">
              <type name="VideoOrientation" c:type="GstVideoOrientation*"/>
            </parameter>
            <parameter name="center" transfer-ownership="none">
              <doc xml:whitespace="preserve">centering offset</doc>
              <type name="gint" c:type="gint"/>
            </parameter>
          </parameters>
        </callback>
      </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>
    <interface name="XOverlay"
               c:symbol-prefix="x_overlay"
               c:type="GstXOverlay"
               glib:type-name="GstXOverlay"
               glib:get-type="gst_x_overlay_get_type">
      <doc xml:whitespace="preserve">Opaque #GstXOverlay data structure.</doc>
      <prerequisite name="Gst.Element"/>
      <prerequisite name="Gst.ImplementsInterface"/>
    </interface>
    <record name="XOverlayClass" c:type="GstXOverlayClass">
      <doc xml:whitespace="preserve">#GstXOverlay interface</doc>
      <field name="klass" writable="1">
        <type name="GObject.TypeInterface" c:type="GTypeInterface"/>
      </field>
      <field name="set_xwindow_id">
        <callback name="set_xwindow_id">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="overlay" transfer-ownership="none">
              <type name="XOverlay" c:type="GstXOverlay*"/>
            </parameter>
            <parameter name="xwindow_id" transfer-ownership="none">
              <type name="gulong" c:type="gulong"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="expose">
        <callback name="expose">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="overlay" transfer-ownership="none">
              <type name="XOverlay" c:type="GstXOverlay*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="handle_events">
        <callback name="handle_events">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="overlay" transfer-ownership="none">
              <type name="XOverlay" c:type="GstXOverlay*"/>
            </parameter>
            <parameter name="handle_events" transfer-ownership="none">
              <type name="gboolean" c:type="gboolean"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="set_render_rectangle">
        <callback name="set_render_rectangle">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="overlay" transfer-ownership="none">
              <type name="XOverlay" c:type="GstXOverlay*"/>
            </parameter>
            <parameter name="x" transfer-ownership="none">
              <type name="gint" c:type="gint"/>
            </parameter>
            <parameter name="y" transfer-ownership="none">
              <type name="gint" c:type="gint"/>
            </parameter>
            <parameter name="width" transfer-ownership="none">
              <type name="gint" c:type="gint"/>
            </parameter>
            <parameter name="height" transfer-ownership="none">
              <type name="gint" c:type="gint"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="set_window_handle" introspectable="0">
        <callback name="set_window_handle" introspectable="0">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="overlay" transfer-ownership="none">
              <type name="XOverlay" c:type="GstXOverlay*"/>
            </parameter>
            <parameter name="handle" transfer-ownership="none">
              <type c:type="guintptr"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="_gst_reserved" writable="1">
        <array zero-terminated="0" c:type="gpointer" fixed-size="1">
          <type name="gpointer" c:type="gpointer"/>
        </array>
      </field>
    </record>
    <function name="interfaces_marshal_VOID__OBJECT_BOOLEAN"
              c:identifier="gst_interfaces_marshal_VOID__OBJECT_BOOLEAN">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="closure" transfer-ownership="none">
          <type name="GObject.Closure" c:type="GClosure*"/>
        </parameter>
        <parameter name="return_value" transfer-ownership="none">
          <type name="GObject.Value" c:type="GValue*"/>
        </parameter>
        <parameter name="n_param_values" transfer-ownership="none">
          <type name="guint" c:type="guint"/>
        </parameter>
        <parameter name="param_values" transfer-ownership="none">
          <type name="GObject.Value" c:type="GValue*"/>
        </parameter>
        <parameter name="invocation_hint" transfer-ownership="none">
          <type name="gpointer" c:type="gpointer"/>
        </parameter>
        <parameter name="marshal_data" transfer-ownership="none">
          <type name="gpointer" c:type="gpointer"/>
        </parameter>
      </parameters>
    </function>
    <function name="interfaces_marshal_VOID__OBJECT_INT"
              c:identifier="gst_interfaces_marshal_VOID__OBJECT_INT">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="closure" transfer-ownership="none">
          <type name="GObject.Closure" c:type="GClosure*"/>
        </parameter>
        <parameter name="return_value" transfer-ownership="none">
          <type name="GObject.Value" c:type="GValue*"/>
        </parameter>
        <parameter name="n_param_values" transfer-ownership="none">
          <type name="guint" c:type="guint"/>
        </parameter>
        <parameter name="param_values" transfer-ownership="none">
          <type name="GObject.Value" c:type="GValue*"/>
        </parameter>
        <parameter name="invocation_hint" transfer-ownership="none">
          <type name="gpointer" c:type="gpointer"/>
        </parameter>
        <parameter name="marshal_data" transfer-ownership="none">
          <type name="gpointer" c:type="gpointer"/>
        </parameter>
      </parameters>
    </function>
    <function name="interfaces_marshal_VOID__OBJECT_POINTER"
              c:identifier="gst_interfaces_marshal_VOID__OBJECT_POINTER">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="closure" transfer-ownership="none">
          <type name="GObject.Closure" c:type="GClosure*"/>
        </parameter>
        <parameter name="return_value" transfer-ownership="none">
          <type name="GObject.Value" c:type="GValue*"/>
        </parameter>
        <parameter name="n_param_values" transfer-ownership="none">
          <type name="guint" c:type="guint"/>
        </parameter>
        <parameter name="param_values" transfer-ownership="none">
          <type name="GObject.Value" c:type="GValue*"/>
        </parameter>
        <parameter name="invocation_hint" transfer-ownership="none">
          <type name="gpointer" c:type="gpointer"/>
        </parameter>
        <parameter name="marshal_data" transfer-ownership="none">
          <type name="gpointer" c:type="gpointer"/>
        </parameter>
      </parameters>
    </function>
    <function name="interfaces_marshal_VOID__OBJECT_STRING"
              c:identifier="gst_interfaces_marshal_VOID__OBJECT_STRING">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="closure" transfer-ownership="none">
          <type name="GObject.Closure" c:type="GClosure*"/>
        </parameter>
        <parameter name="return_value" transfer-ownership="none">
          <type name="GObject.Value" c:type="GValue*"/>
        </parameter>
        <parameter name="n_param_values" transfer-ownership="none">
          <type name="guint" c:type="guint"/>
        </parameter>
        <parameter name="param_values" transfer-ownership="none">
          <type name="GObject.Value" c:type="GValue*"/>
        </parameter>
        <parameter name="invocation_hint" transfer-ownership="none">
          <type name="gpointer" c:type="gpointer"/>
        </parameter>
        <parameter name="marshal_data" transfer-ownership="none">
          <type name="gpointer" c:type="gpointer"/>
        </parameter>
      </parameters>
    </function>
    <function name="interfaces_marshal_VOID__OBJECT_ULONG"
              c:identifier="gst_interfaces_marshal_VOID__OBJECT_ULONG">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="closure" transfer-ownership="none">
          <type name="GObject.Closure" c:type="GClosure*"/>
        </parameter>
        <parameter name="return_value" transfer-ownership="none">
          <type name="GObject.Value" c:type="GValue*"/>
        </parameter>
        <parameter name="n_param_values" transfer-ownership="none">
          <type name="guint" c:type="guint"/>
        </parameter>
        <parameter name="param_values" transfer-ownership="none">
          <type name="GObject.Value" c:type="GValue*"/>
        </parameter>
        <parameter name="invocation_hint" transfer-ownership="none">
          <type name="gpointer" c:type="gpointer"/>
        </parameter>
        <parameter name="marshal_data" transfer-ownership="none">
          <type name="gpointer" c:type="gpointer"/>
        </parameter>
      </parameters>
    </function>
    <function name="mixer_message_get_type"
              c:identifier="gst_mixer_message_get_type"
              version="0.10.14">
      <doc xml:whitespace="preserve">Check a bus message to see if it is a GstMixer notification
message and return the GstMixerMessageType identifying which
type of notification it is.
if the message is not a GstMixer notification.</doc>
      <return-value transfer-ownership="none">
        <doc xml:whitespace="preserve">The type of the GstMixerMessage, or GST_MIXER_MESSAGE_INVALID</doc>
        <type name="MixerMessageType" c:type="GstMixerMessageType"/>
      </return-value>
      <parameters>
        <parameter name="message" transfer-ownership="none">
          <doc xml:whitespace="preserve">A GstMessage to inspect.</doc>
          <type name="Gst.Message" c:type="GstMessage*"/>
        </parameter>
      </parameters>
    </function>
    <function name="mixer_message_parse_mute_toggled"
              c:identifier="gst_mixer_message_parse_mute_toggled"
              version="0.10.14">
      <doc xml:whitespace="preserve">Extracts the contents of a mute-toggled bus message. Reads
the GstMixerTrack that has changed, and the new value of the mute
flag.
The GstMixerTrack remains valid until the message is freed.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="message" transfer-ownership="none">
          <doc xml:whitespace="preserve">A mute-toggled change notification message.</doc>
          <type name="Gst.Message" c:type="GstMessage*"/>
        </parameter>
        <parameter name="track" transfer-ownership="none">
          <doc xml:whitespace="preserve">Pointer to hold a GstMixerTrack object, or NULL.</doc>
          <type name="MixerTrack" c:type="GstMixerTrack**"/>
        </parameter>
        <parameter name="mute" transfer-ownership="none">
          <doc xml:whitespace="preserve">A pointer to a gboolean variable, or NULL.</doc>
          <type name="gboolean" c:type="gboolean*"/>
        </parameter>
      </parameters>
    </function>
    <function name="mixer_message_parse_option_changed"
              c:identifier="gst_mixer_message_parse_option_changed"
              version="0.10.14">
      <doc xml:whitespace="preserve">Extracts the GstMixerOptions and new value from a option-changed bus notification
message.
The options and value returned remain valid until the message is freed.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="message" transfer-ownership="none">
          <doc xml:whitespace="preserve">A volume-changed change notification message.</doc>
          <type name="Gst.Message" c:type="GstMessage*"/>
        </parameter>
        <parameter name="options" transfer-ownership="none">
          <doc xml:whitespace="preserve">Pointer to hold a GstMixerOptions object, or NULL.</doc>
          <type name="MixerOptions" c:type="GstMixerOptions**"/>
        </parameter>
        <parameter name="value" transfer-ownership="none">
          <doc xml:whitespace="preserve">Result location to receive the new options value, or NULL.</doc>
          <type name="utf8" c:type="gchar**"/>
        </parameter>
      </parameters>
    </function>
    <function name="mixer_message_parse_options_list_changed"
              c:identifier="gst_mixer_message_parse_options_list_changed"
              version="0.10.18">
      <doc xml:whitespace="preserve">Extracts the GstMixerOptions whose value list has changed from an
options-list-changed bus notification message.
The options object returned remains valid until the message is freed. You
do not need to unref it.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="message" transfer-ownership="none">
          <doc xml:whitespace="preserve">A volume-changed change notification message.</doc>
          <type name="Gst.Message" c:type="GstMessage*"/>
        </parameter>
        <parameter name="options" transfer-ownership="none">
          <doc xml:whitespace="preserve">Pointer to hold a GstMixerOptions object, or NULL.</doc>
          <type name="MixerOptions" c:type="GstMixerOptions**"/>
        </parameter>
      </parameters>
    </function>
    <function name="mixer_message_parse_record_toggled"
              c:identifier="gst_mixer_message_parse_record_toggled"
              version="0.10.14">
      <doc xml:whitespace="preserve">Extracts the contents of a record-toggled bus message. Reads
the GstMixerTrack that has changed, and the new value of the 
recording flag.
The GstMixerTrack remains valid until the message is freed.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="message" transfer-ownership="none">
          <doc xml:whitespace="preserve">A record-toggled change notification message.</doc>
          <type name="Gst.Message" c:type="GstMessage*"/>
        </parameter>
        <parameter name="track" transfer-ownership="none">
          <doc xml:whitespace="preserve">Pointer to hold a GstMixerTrack object, or NULL.</doc>
          <type name="MixerTrack" c:type="GstMixerTrack**"/>
        </parameter>
        <parameter name="record" transfer-ownership="none">
          <doc xml:whitespace="preserve">A pointer to a gboolean variable, or NULL.</doc>
          <type name="gboolean" c:type="gboolean*"/>
        </parameter>
      </parameters>
    </function>
    <function name="mixer_message_parse_volume_changed"
              c:identifier="gst_mixer_message_parse_volume_changed"
              version="0.10.14">
      <doc xml:whitespace="preserve">Parses a volume-changed notification message and extracts the track object
it refers to, as well as an array of volumes and the size of the volumes array.
The track object remains valid until the message is freed.
The caller must free the array returned in the volumes parameter using g_free
when they are done with it.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="message" transfer-ownership="none">
          <doc xml:whitespace="preserve">A volume-changed change notification message.</doc>
          <type name="Gst.Message" c:type="GstMessage*"/>
        </parameter>
        <parameter name="track" transfer-ownership="none">
          <doc xml:whitespace="preserve">Pointer to hold a GstMixerTrack object, or NULL.</doc>
          <type name="MixerTrack" c:type="GstMixerTrack**"/>
        </parameter>
        <parameter name="volumes" transfer-ownership="none">
          <doc xml:whitespace="preserve">A pointer to receive an array of gint values, or NULL.</doc>
          <type name="gint" c:type="gint**"/>
        </parameter>
        <parameter name="num_channels" transfer-ownership="none">
          <doc xml:whitespace="preserve">Result location to receive the number of channels, or NULL.</doc>
          <type name="gint" c:type="gint*"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_event_get_type"
              c:identifier="gst_navigation_event_get_type"
              version="0.10.23">
      <doc xml:whitespace="preserve">Inspect a #GstEvent and return the #GstNavigationEventType of the event, or
#GST_NAVIGATION_EVENT_INVALID if the event is not a #GstNavigation event.</doc>
      <return-value transfer-ownership="none">
        <type name="NavigationEventType" c:type="GstNavigationEventType"/>
      </return-value>
      <parameters>
        <parameter name="event" transfer-ownership="none">
          <doc xml:whitespace="preserve">A #GstEvent to inspect.</doc>
          <type name="Gst.Event" c:type="GstEvent*"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_event_parse_command"
              c:identifier="gst_navigation_event_parse_command"
              version="0.10.23">
      <doc xml:whitespace="preserve">Inspect a #GstNavigation command event and retrieve the enum value of the
associated command.</doc>
      <return-value transfer-ownership="none">
        <doc xml:whitespace="preserve">TRUE if the navigation command could be extracted, otherwise FALSE.</doc>
        <type name="gboolean" c:type="gboolean"/>
      </return-value>
      <parameters>
        <parameter name="event" transfer-ownership="none">
          <doc xml:whitespace="preserve">A #GstEvent to inspect.</doc>
          <type name="Gst.Event" c:type="GstEvent*"/>
        </parameter>
        <parameter name="command" transfer-ownership="none">
          <doc xml:whitespace="preserve">Pointer to GstNavigationCommand to receive the type of the navigation event.</doc>
          <type name="NavigationCommand" c:type="GstNavigationCommand*"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_event_parse_key_event"
              c:identifier="gst_navigation_event_parse_key_event"
              version="0.10.23">
      <return-value transfer-ownership="none">
        <type name="gboolean" c:type="gboolean"/>
      </return-value>
      <parameters>
        <parameter name="event" transfer-ownership="none">
          <doc xml:whitespace="preserve">A #GstEvent to inspect.</doc>
          <type name="Gst.Event" c:type="GstEvent*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:whitespace="preserve">A pointer to a location to receive the string identifying the key press. The returned string is owned by the event, and valid only until the event is unreffed.</doc>
          <type name="utf8" c:type="gchar**"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_event_parse_mouse_button_event"
              c:identifier="gst_navigation_event_parse_mouse_button_event"
              version="0.10.23">
      <doc xml:whitespace="preserve">Retrieve the details of either a #GstNavigation mouse button press event or
a mouse button release event. Determine which type the event is using
gst_navigation_event_get_type() to retrieve the #GstNavigationEventType.
otherwise FALSE.</doc>
      <return-value transfer-ownership="none">
        <doc xml:whitespace="preserve">TRUE if the button number and both coordinates could be extracted,</doc>
        <type name="gboolean" c:type="gboolean"/>
      </return-value>
      <parameters>
        <parameter name="event" transfer-ownership="none">
          <doc xml:whitespace="preserve">A #GstEvent to inspect.</doc>
          <type name="Gst.Event" c:type="GstEvent*"/>
        </parameter>
        <parameter name="button" transfer-ownership="none">
          <doc xml:whitespace="preserve">Pointer to a gint that will receive the button number associated with the event.</doc>
          <type name="gint" c:type="gint*"/>
        </parameter>
        <parameter name="x" transfer-ownership="none">
          <doc xml:whitespace="preserve">Pointer to a gdouble to receive the x coordinate of the mouse button event.</doc>
          <type name="gdouble" c:type="gdouble*"/>
        </parameter>
        <parameter name="y" transfer-ownership="none">
          <doc xml:whitespace="preserve">Pointer to a gdouble to receive the y coordinate of the mouse button event.</doc>
          <type name="gdouble" c:type="gdouble*"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_event_parse_mouse_move_event"
              c:identifier="gst_navigation_event_parse_mouse_move_event"
              version="0.10.23">
      <doc xml:whitespace="preserve">Inspect a #GstNavigation mouse movement event and extract the coordinates
of the event.</doc>
      <return-value transfer-ownership="none">
        <doc xml:whitespace="preserve">TRUE if both coordinates could be extracted, otherwise FALSE.</doc>
        <type name="gboolean" c:type="gboolean"/>
      </return-value>
      <parameters>
        <parameter name="event" transfer-ownership="none">
          <doc xml:whitespace="preserve">A #GstEvent to inspect.</doc>
          <type name="Gst.Event" c:type="GstEvent*"/>
        </parameter>
        <parameter name="x" transfer-ownership="none">
          <doc xml:whitespace="preserve">Pointer to a gdouble to receive the x coordinate of the mouse movement.</doc>
          <type name="gdouble" c:type="gdouble*"/>
        </parameter>
        <parameter name="y" transfer-ownership="none">
          <doc xml:whitespace="preserve">Pointer to a gdouble to receive the y coordinate of the mouse movement.</doc>
          <type name="gdouble" c:type="gdouble*"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_message_get_type"
              c:identifier="gst_navigation_message_get_type"
              version="0.10.23">
      <doc xml:whitespace="preserve">Check a bus message to see if it is a #GstNavigation event, and return
the #GstNavigationMessageType identifying the type of the message if so.
#GST_NAVIGATION_MESSAGE_INVALID if the message is not a #GstNavigation
notification.</doc>
      <return-value transfer-ownership="none">
        <doc xml:whitespace="preserve">The type of the #GstNavigationMessage, or</doc>
        <type name="NavigationMessageType" c:type="GstNavigationMessageType"/>
      </return-value>
      <parameters>
        <parameter name="message" transfer-ownership="none">
          <doc xml:whitespace="preserve">A #GstMessage to inspect.</doc>
          <type name="Gst.Message" c:type="GstMessage*"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_message_new_angles_changed"
              c:identifier="gst_navigation_message_new_angles_changed"
              version="0.10.23"
              introspectable="0">
      <doc xml:whitespace="preserve">Creates a new #GstNavigation message with type
#GST_NAVIGATION_MESSAGE_ANGLES_CHANGED for notifying an application
that the current angle, or current number of angles available in a
multiangle video has changed.</doc>
      <return-value>
        <doc xml:whitespace="preserve">The new #GstMessage.</doc>
        <type name="Gst.Message" c:type="GstMessage*"/>
      </return-value>
      <parameters>
        <parameter name="src" transfer-ownership="none">
          <doc xml:whitespace="preserve">A #GstObject to set as source of the new message.</doc>
          <type name="Gst.Object" c:type="GstObject*"/>
        </parameter>
        <parameter name="cur_angle" transfer-ownership="none">
          <doc xml:whitespace="preserve">The currently selected angle.</doc>
          <type name="guint" c:type="guint"/>
        </parameter>
        <parameter name="n_angles" transfer-ownership="none">
          <doc xml:whitespace="preserve">The number of viewing angles now available.</doc>
          <type name="guint" c:type="guint"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_message_new_commands_changed"
              c:identifier="gst_navigation_message_new_commands_changed"
              version="0.10.23"
              introspectable="0">
      <doc xml:whitespace="preserve">Creates a new #GstNavigation message with type
#GST_NAVIGATION_MESSAGE_COMMANDS_CHANGED</doc>
      <return-value>
        <doc xml:whitespace="preserve">The new #GstMessage.</doc>
        <type name="Gst.Message" c:type="GstMessage*"/>
      </return-value>
      <parameters>
        <parameter name="src" transfer-ownership="none">
          <doc xml:whitespace="preserve">A #GstObject to set as source of the new message.</doc>
          <type name="Gst.Object" c:type="GstObject*"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_message_new_mouse_over"
              c:identifier="gst_navigation_message_new_mouse_over"
              version="0.10.23"
              introspectable="0">
      <doc xml:whitespace="preserve">Creates a new #GstNavigation message with type
#GST_NAVIGATION_MESSAGE_MOUSE_OVER.</doc>
      <return-value>
        <doc xml:whitespace="preserve">The new #GstMessage.</doc>
        <type name="Gst.Message" c:type="GstMessage*"/>
      </return-value>
      <parameters>
        <parameter name="src" transfer-ownership="none">
          <doc xml:whitespace="preserve">A #GstObject to set as source of the new message.</doc>
          <type name="Gst.Object" c:type="GstObject*"/>
        </parameter>
        <parameter name="active" transfer-ownership="none">
          <doc xml:whitespace="preserve">%TRUE if the mouse has entered a clickable area of the display. %FALSE if it over a non-clickable area.</doc>
          <type name="gboolean" c:type="gboolean"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_message_parse_angles_changed"
              c:identifier="gst_navigation_message_parse_angles_changed"
              version="0.10.23">
      <doc xml:whitespace="preserve">Parse a #GstNavigation message of type GST_NAVIGATION_MESSAGE_ANGLES_CHANGED
and extract the @cur_angle and @n_angles parameters.</doc>
      <return-value transfer-ownership="none">
        <doc xml:whitespace="preserve">%TRUE if the message could be successfully parsed. %FALSE if not.</doc>
        <type name="gboolean" c:type="gboolean"/>
      </return-value>
      <parameters>
        <parameter name="message" transfer-ownership="none">
          <doc xml:whitespace="preserve">A #GstMessage to inspect.</doc>
          <type name="Gst.Message" c:type="GstMessage*"/>
        </parameter>
        <parameter name="cur_angle" transfer-ownership="none">
          <doc xml:whitespace="preserve">A pointer to a #guint to receive the new current angle number, or NULL</doc>
          <type name="guint" c:type="guint*"/>
        </parameter>
        <parameter name="n_angles" transfer-ownership="none">
          <doc xml:whitespace="preserve">A pointer to a #guint to receive the new angle count, or NULL.</doc>
          <type name="guint" c:type="guint*"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_message_parse_mouse_over"
              c:identifier="gst_navigation_message_parse_mouse_over"
              version="0.10.23">
      <doc xml:whitespace="preserve">Parse a #GstNavigation message of type #GST_NAVIGATION_MESSAGE_MOUSE_OVER
and extract the active/inactive flag. If the mouse over event is marked
active, it indicates that the mouse is over a clickable area.</doc>
      <return-value transfer-ownership="none">
        <doc xml:whitespace="preserve">%TRUE if the message could be successfully parsed. %FALSE if not.</doc>
        <type name="gboolean" c:type="gboolean"/>
      </return-value>
      <parameters>
        <parameter name="message" transfer-ownership="none">
          <doc xml:whitespace="preserve">A #GstMessage to inspect.</doc>
          <type name="Gst.Message" c:type="GstMessage*"/>
        </parameter>
        <parameter name="active" transfer-ownership="none">
          <doc xml:whitespace="preserve">A pointer to a gboolean to receive the active/inactive state, or NULL.</doc>
          <type name="gboolean" c:type="gboolean*"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_query_get_type"
              c:identifier="gst_navigation_query_get_type"
              version="0.10.23">
      <doc xml:whitespace="preserve">Inspect a #GstQuery and return the #GstNavigationQueryType associated with
it if it is a #GstNavigation query.
#GST_NAVIGATION_QUERY_INVALID</doc>
      <return-value transfer-ownership="none">
        <doc xml:whitespace="preserve">The #GstNavigationQueryType of the query, or</doc>
        <type name="NavigationQueryType" c:type="GstNavigationQueryType"/>
      </return-value>
      <parameters>
        <parameter name="query" transfer-ownership="none">
          <doc xml:whitespace="preserve">The query to inspect</doc>
          <type name="Gst.Query" c:type="GstQuery*"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_query_new_angles"
              c:identifier="gst_navigation_query_new_angles"
              version="0.10.23"
              introspectable="0">
      <doc xml:whitespace="preserve">Create a new #GstNavigation angles query. When executed, it will
query the pipeline for the set of currently available angles, which may be
greater than one in a multiangle video.</doc>
      <return-value>
        <doc xml:whitespace="preserve">The new query.</doc>
        <type name="Gst.Query" c:type="GstQuery*"/>
      </return-value>
    </function>
    <function name="navigation_query_new_commands"
              c:identifier="gst_navigation_query_new_commands"
              version="0.10.23"
              introspectable="0">
      <doc xml:whitespace="preserve">Create a new #GstNavigation commands query. When executed, it will
query the pipeline for the set of currently available commands.</doc>
      <return-value>
        <doc xml:whitespace="preserve">The new query.</doc>
        <type name="Gst.Query" c:type="GstQuery*"/>
      </return-value>
    </function>
    <function name="navigation_query_parse_angles"
              c:identifier="gst_navigation_query_parse_angles"
              version="0.10.23">
      <doc xml:whitespace="preserve">Parse the current angle number in the #GstNavigation angles @query into the
#guint pointed to by the @cur_angle variable, and the number of available
angles into the #guint pointed to by the @n_angles variable.</doc>
      <return-value transfer-ownership="none">
        <doc xml:whitespace="preserve">%TRUE if the query could be successfully parsed. %FALSE if not.</doc>
        <type name="gboolean" c:type="gboolean"/>
      </return-value>
      <parameters>
        <parameter name="query" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #GstQuery</doc>
          <type name="Gst.Query" c:type="GstQuery*"/>
        </parameter>
        <parameter name="cur_angle" transfer-ownership="none">
          <doc xml:whitespace="preserve">Pointer to a #guint into which to store the currently selected angle value from the query, or NULL</doc>
          <type name="guint" c:type="guint*"/>
        </parameter>
        <parameter name="n_angles" transfer-ownership="none">
          <doc xml:whitespace="preserve">Pointer to a #guint into which to store the number of angles value from the query, or NULL</doc>
          <type name="guint" c:type="guint*"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_query_parse_commands_length"
              c:identifier="gst_navigation_query_parse_commands_length"
              version="0.10.23">
      <doc xml:whitespace="preserve">Parse the number of commands in the #GstNavigation commands @query.</doc>
      <return-value transfer-ownership="none">
        <doc xml:whitespace="preserve">%TRUE if the query could be successfully parsed. %FALSE if not.</doc>
        <type name="gboolean" c:type="gboolean"/>
      </return-value>
      <parameters>
        <parameter name="query" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #GstQuery</doc>
          <type name="Gst.Query" c:type="GstQuery*"/>
        </parameter>
        <parameter name="n_cmds" transfer-ownership="none">
          <doc xml:whitespace="preserve">the number of commands in this query.</doc>
          <type name="guint" c:type="guint*"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_query_parse_commands_nth"
              c:identifier="gst_navigation_query_parse_commands_nth"
              version="0.10.23">
      <doc xml:whitespace="preserve">Parse the #GstNavigation command query and retrieve the @nth command from
it into @cmd. If the list contains less elements than @nth, @cmd will be
set to #GST_NAVIGATION_COMMAND_INVALID.</doc>
      <return-value transfer-ownership="none">
        <doc xml:whitespace="preserve">%TRUE if the query could be successfully parsed. %FALSE if not.</doc>
        <type name="gboolean" c:type="gboolean"/>
      </return-value>
      <parameters>
        <parameter name="query" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #GstQuery</doc>
          <type name="Gst.Query" c:type="GstQuery*"/>
        </parameter>
        <parameter name="nth" transfer-ownership="none">
          <doc xml:whitespace="preserve">the nth command to retrieve.</doc>
          <type name="guint" c:type="guint"/>
        </parameter>
        <parameter name="cmd" transfer-ownership="none">
          <doc xml:whitespace="preserve">a pointer to store the nth command into.</doc>
          <type name="NavigationCommand" c:type="GstNavigationCommand*"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_query_set_angles"
              c:identifier="gst_navigation_query_set_angles"
              version="0.10.23">
      <doc xml:whitespace="preserve">Set the #GstNavigation angles query result field in @query.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="query" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #GstQuery</doc>
          <type name="Gst.Query" c:type="GstQuery*"/>
        </parameter>
        <parameter name="cur_angle" transfer-ownership="none">
          <doc xml:whitespace="preserve">the current viewing angle to set.</doc>
          <type name="guint" c:type="guint"/>
        </parameter>
        <parameter name="n_angles" transfer-ownership="none">
          <doc xml:whitespace="preserve">the number of viewing angles to set.</doc>
          <type name="guint" c:type="guint"/>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_query_set_commands"
              c:identifier="gst_navigation_query_set_commands"
              version="0.10.23"
              introspectable="0">
      <doc xml:whitespace="preserve">Set the #GstNavigation command query result fields in @query. The number
of commands passed must be equal to @n_commands.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="query" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #GstQuery</doc>
          <type name="Gst.Query" c:type="GstQuery*"/>
        </parameter>
        <parameter name="n_cmds" transfer-ownership="none">
          <doc xml:whitespace="preserve">the number of commands to set.</doc>
          <type name="gint" c:type="gint"/>
        </parameter>
        <parameter transfer-ownership="none">
          <varargs>
          </varargs>
        </parameter>
      </parameters>
    </function>
    <function name="navigation_query_set_commandsv"
              c:identifier="gst_navigation_query_set_commandsv"
              version="0.10.23">
      <doc xml:whitespace="preserve">Set the #GstNavigation command query result fields in @query. The number
of commands passed must be equal to @n_commands.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="query" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #GstQuery</doc>
          <type name="Gst.Query" c:type="GstQuery*"/>
        </parameter>
        <parameter name="n_cmds" transfer-ownership="none">
          <doc xml:whitespace="preserve">the number of commands to set.</doc>
          <type name="gint" c:type="gint"/>
        </parameter>
        <parameter name="cmds" transfer-ownership="none">
          <doc xml:whitespace="preserve">An array containing @n_cmds @GstNavigationCommand values.</doc>
          <type name="NavigationCommand" c:type="GstNavigationCommand*"/>
        </parameter>
      </parameters>
    </function>
    <function name="stream_volume_convert_volume"
              c:identifier="gst_stream_volume_convert_volume"
              version="0.10.25">
      <return-value transfer-ownership="none">
        <doc xml:whitespace="preserve">the converted volume</doc>
        <type name="gdouble" c:type="gdouble"/>
      </return-value>
      <parameters>
        <parameter name="from" transfer-ownership="none">
          <doc xml:whitespace="preserve">#GstStreamVolumeFormat to convert from</doc>
          <type name="StreamVolumeFormat" c:type="GstStreamVolumeFormat"/>
        </parameter>
        <parameter name="to" transfer-ownership="none">
          <doc xml:whitespace="preserve">#GstStreamVolumeFormat to convert to</doc>
          <type name="StreamVolumeFormat" c:type="GstStreamVolumeFormat"/>
        </parameter>
        <parameter name="val" transfer-ownership="none">
          <doc xml:whitespace="preserve">Volume in @from format that should be converted</doc>
          <type name="gdouble" c:type="gdouble"/>
        </parameter>
      </parameters>
    </function>
    <function name="x_overlay_expose" c:identifier="gst_x_overlay_expose">
      <doc xml:whitespace="preserve">Tell an overlay that it has been exposed. This will redraw the current frame
in the drawable even if the pipeline is PAUSED.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="overlay" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #GstXOverlay to expose.</doc>
          <type name="XOverlay" c:type="GstXOverlay*"/>
        </parameter>
      </parameters>
    </function>
    <function name="x_overlay_got_window_handle"
              c:identifier="gst_x_overlay_got_window_handle"
              introspectable="0">
      <doc xml:whitespace="preserve">This will post a "have-xwindow-id" element message on the bus.
This function should only be used by video overlay plugin developers.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="overlay" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #GstXOverlay which got a window</doc>
          <type name="XOverlay" c:type="GstXOverlay*"/>
        </parameter>
        <parameter name="handle" transfer-ownership="none">
          <doc xml:whitespace="preserve">a platform-specific handle referencing the window</doc>
          <type c:type="guintptr"/>
        </parameter>
      </parameters>
    </function>
    <function name="x_overlay_got_xwindow_id"
              c:identifier="gst_x_overlay_got_xwindow_id"
              deprecated="Use gst_x_overlay_got_window_handle() instead.">
      <doc xml:whitespace="preserve">This will post a "have-xwindow-id" element message on the bus.
This function should only be used by video overlay plugin developers.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="overlay" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #GstXOverlay which got a XWindow.</doc>
          <type name="XOverlay" c:type="GstXOverlay*"/>
        </parameter>
        <parameter name="xwindow_id" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #XID referencing the XWindow.</doc>
          <type name="gulong" c:type="gulong"/>
        </parameter>
      </parameters>
    </function>
    <function name="x_overlay_handle_events"
              c:identifier="gst_x_overlay_handle_events"
              version="0.10.12">
      <doc xml:whitespace="preserve">Tell an overlay that it should handle events from the window system. These
events are forwared upstream as navigation events. In some window system,
events are not propagated in the window hierarchy if a client is listening
for them. This method allows you to disable events handling completely
from the XOverlay.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="overlay" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #GstXOverlay to expose.</doc>
          <type name="XOverlay" c:type="GstXOverlay*"/>
        </parameter>
        <parameter name="handle_events" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #gboolean indicating if events should be handled or not.</doc>
          <type name="gboolean" c:type="gboolean"/>
        </parameter>
      </parameters>
    </function>
    <function name="x_overlay_prepare_xwindow_id"
              c:identifier="gst_x_overlay_prepare_xwindow_id">
      <doc xml:whitespace="preserve">This will post a "prepare-xwindow-id" element message on the bus
to give applications an opportunity to call 
gst_x_overlay_set_xwindow_id() before a plugin creates its own
window.
This function should only be used by video overlay plugin developers.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="overlay" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #GstXOverlay which does not yet have an XWindow.</doc>
          <type name="XOverlay" c:type="GstXOverlay*"/>
        </parameter>
      </parameters>
    </function>
    <function name="x_overlay_set_render_rectangle"
              c:identifier="gst_x_overlay_set_render_rectangle"
              version="0.10.29">
      <doc xml:whitespace="preserve">Configure a subregion as a video target within the window set by
gst_x_overlay_set_window_handle(). If this is not used or not supported
the video will fill the area of the window set as the overlay to 100%.
By specifying the rectangle, the video can be overlayed to a specific region
of that window only. After setting the new rectangle one should call
gst_x_overlay_expose() to force a redraw. To unset the region pass -1 for
the @width and @height parameters.
This method is needed for non fullscreen video overlay in UI toolkits that
do not support subwindows.</doc>
      <return-value transfer-ownership="none">
        <doc xml:whitespace="preserve">%FALSE if not supported by the sink.</doc>
        <type name="gboolean" c:type="gboolean"/>
      </return-value>
      <parameters>
        <parameter name="overlay" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #GstXOverlay</doc>
          <type name="XOverlay" c:type="GstXOverlay*"/>
        </parameter>
        <parameter name="x" transfer-ownership="none">
          <doc xml:whitespace="preserve">the horizontal offset of the render area inside the window</doc>
          <type name="gint" c:type="gint"/>
        </parameter>
        <parameter name="y" transfer-ownership="none">
          <doc xml:whitespace="preserve">the vertical offset of the render area inside the window</doc>
          <type name="gint" c:type="gint"/>
        </parameter>
        <parameter name="width" transfer-ownership="none">
          <doc xml:whitespace="preserve">the width of the render area inside the window</doc>
          <type name="gint" c:type="gint"/>
        </parameter>
        <parameter name="height" transfer-ownership="none">
          <doc xml:whitespace="preserve">the height of the render area inside the window</doc>
          <type name="gint" c:type="gint"/>
        </parameter>
      </parameters>
    </function>
    <function name="x_overlay_set_window_handle"
              c:identifier="gst_x_overlay_set_window_handle"
              version="0.10.31"
              introspectable="0">
      <doc xml:whitespace="preserve">This will call the video overlay's set_window_handle method. You
should use this method to tell to a XOverlay to display video output to a
specific XWindow. Passing 0 as the xwindow_id will tell the overlay to
stop using that window and create an internal one.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="overlay" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #GstXOverlay to set the XWindow on.</doc>
          <type name="XOverlay" c:type="GstXOverlay*"/>
        </parameter>
        <parameter name="handle" transfer-ownership="none">
          <type c:type="guintptr"/>
        </parameter>
      </parameters>
    </function>
    <function name="x_overlay_set_xwindow_id"
              c:identifier="gst_x_overlay_set_xwindow_id"
              deprecated="Use gst_x_overlay_set_window_handle() instead.">
      <doc xml:whitespace="preserve">This will call the video overlay's set_xwindow_id method. You should
use this method to tell to a XOverlay to display video output to a
specific XWindow. Passing 0 as the xwindow_id will tell the overlay to
stop using that window and create an internal one.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="overlay" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #GstXOverlay to set the XWindow on.</doc>
          <type name="XOverlay" c:type="GstXOverlay*"/>
        </parameter>
        <parameter name="xwindow_id" transfer-ownership="none">
          <doc xml:whitespace="preserve">a #XID referencing the XWindow.</doc>
          <type name="gulong" c:type="gulong"/>
        </parameter>
      </parameters>
    </function>
  </namespace>
</repository>