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<?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="Cogl" version="2.0"/>
  <include name="GObject" version="2.0"/>
  <include name="Gst" version="1.0"/>
  <include name="GstBase" version="1.0"/>
  <package name="cogl-gst-2.0-experimental"/>
  <c:include name="cogl-gst/cogl-gst.h"/>
  <c:include name="gst/gst.h"/>
  <namespace name="CoglGst"
             version="2.0"
             shared-library="libcogl.so.20,libcogl-gst.so.20"
             c:identifier-prefixes="CoglGst"
             c:symbol-prefixes="cogl_gst">
    <record name="Rectangle"
            c:type="CoglGstRectangle"
            glib:type-name="CoglGstRectangle"
            glib:get-type="cogl_gst_rectangle_get_gtype"
            c:symbol-prefix="rectangle">
      <doc xml:space="preserve">Describes a rectangle that can be used for video output.</doc>
      <field name="x" writable="1">
        <doc xml:space="preserve">The X coordinate of the top left of the rectangle</doc>
        <type name="gfloat" c:type="float"/>
      </field>
      <field name="y" writable="1">
        <doc xml:space="preserve">The Y coordinate of the top left of the rectangle</doc>
        <type name="gfloat" c:type="float"/>
      </field>
      <field name="width" writable="1">
        <doc xml:space="preserve">The width of the rectangle</doc>
        <type name="gfloat" c:type="float"/>
      </field>
      <field name="height" writable="1">
        <doc xml:space="preserve">The height of the rectangle</doc>
        <type name="gfloat" c:type="float"/>
      </field>
    </record>
    <class name="VideoSink"
           c:symbol-prefix="video_sink"
           c:type="CoglGstVideoSink"
           version="1.16"
           parent="GstBase.BaseSink"
           glib:type-name="CoglGstVideoSink"
           glib:get-type="cogl_gst_video_sink_get_type"
           glib:type-struct="VideoSinkClass">
      <doc xml:space="preserve">The #CoglGstVideoSink structure contains only private data and
should be accessed using the provided API.</doc>
      <constructor name="new"
                   c:identifier="cogl_gst_video_sink_new"
                   version="1.16">
        <doc xml:space="preserve">Creates a new #CoglGstVideoSink which will create resources for use
with the given context.</doc>
        <return-value transfer-ownership="full">
          <doc xml:space="preserve">a new #CoglGstVideoSink</doc>
          <type name="VideoSink" c:type="CoglGstVideoSink*"/>
        </return-value>
        <parameters>
          <parameter name="ctx" transfer-ownership="none">
            <doc xml:space="preserve">The #CoglContext</doc>
            <type name="Cogl.Context" c:type="CoglContext*"/>
          </parameter>
        </parameters>
      </constructor>
      <virtual-method name="new_frame">
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
        </parameters>
      </virtual-method>
      <virtual-method name="pipeline_ready">
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
        </parameters>
      </virtual-method>
      <method name="attach_frame"
              c:identifier="cogl_gst_video_sink_attach_frame"
              version="1.16">
        <doc xml:space="preserve">Updates the given pipeline with the textures for the current frame.
This can be used if the application wants to customize the
rendering using its own pipeline. Typically this would be called in
response to the #CoglGstVideoSink::new-frame signal which is
emitted whenever the new textures are available. The application
would then make a copy of its template pipeline and call this to
set the textures.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <doc xml:space="preserve">The #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
          <parameter name="pln" transfer-ownership="none">
            <doc xml:space="preserve">A #CoglPipeline</doc>
            <type name="Cogl.Pipeline" c:type="CoglPipeline*"/>
          </parameter>
        </parameters>
      </method>
      <method name="fit_size"
              c:identifier="cogl_gst_video_sink_fit_size"
              version="1.16"
              stability="Unstable">
        <doc xml:space="preserve">Calculates a suitable @output rectangle that can fit inside the
@available space while maintaining the aspect ratio of the current
video.

Applications would typically use this api for "letterboxing" by
using this api to position a video inside a fixed screen space and
filling the remaining space with black borders.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <doc xml:space="preserve">A #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
          <parameter name="available" transfer-ownership="none">
            <doc xml:space="preserve">The space available for video output</doc>
            <type name="Rectangle" c:type="const CoglGstRectangle*"/>
          </parameter>
          <parameter name="output"
                     direction="inout"
                     caller-allocates="0"
                     transfer-ownership="full">
            <doc xml:space="preserve">The return location for the calculated output position</doc>
            <type name="Rectangle" c:type="CoglGstRectangle*"/>
          </parameter>
        </parameters>
      </method>
      <method name="get_aspect"
              c:identifier="cogl_gst_video_sink_get_aspect"
              version="1.16"
              stability="Unstable">
        <doc xml:space="preserve">Returns a width-for-height aspect ratio that lets you calculate a
suitable width for displaying your video based on a given height by
multiplying your chosen height by the returned aspect ratio.

This aspect ratio is calculated based on the underlying size of the
video buffers and the current pixel-aspect-ratio.</doc>
        <return-value transfer-ownership="none">
          <doc xml:space="preserve">a width-for-height aspect ratio</doc>
          <type name="gfloat" c:type="float"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <doc xml:space="preserve">A #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
        </parameters>
      </method>
      <method name="get_free_layer"
              c:identifier="cogl_gst_video_sink_get_free_layer"
              version="1.16">
        <doc xml:space="preserve">This can be used when doing specialised rendering of the video by
customizing the pipeline. #CoglGstVideoSink may use up to three
private layers on the pipeline in order to attach the textures of
the video frame. This function will return the index of the next
available unused layer after the sink's internal layers. This can
be used by the application to add additional layers, for example to
blend in another color in the fragment processing.</doc>
        <return-value transfer-ownership="none">
          <doc xml:space="preserve">the index of the next available layer after the
  sink's internal layers.</doc>
          <type name="gint" c:type="int"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <doc xml:space="preserve">The #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
        </parameters>
      </method>
      <method name="get_height_for_width"
              c:identifier="cogl_gst_video_sink_get_height_for_width"
              version="1.16"
              stability="Unstable">
        <doc xml:space="preserve">Calculates a suitable output height for a specific output @width
that will maintain the video's aspect ratio.</doc>
        <return-value transfer-ownership="none">
          <doc xml:space="preserve">An output height for the given output @width.</doc>
          <type name="gfloat" c:type="float"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <doc xml:space="preserve">A #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
          <parameter name="width" transfer-ownership="none">
            <doc xml:space="preserve">A specific output @width</doc>
            <type name="gfloat" c:type="float"/>
          </parameter>
        </parameters>
      </method>
      <method name="get_natural_height"
              c:identifier="cogl_gst_video_sink_get_natural_height"
              version="1.18"
              stability="Unstable">
        <doc xml:space="preserve">Considering the real resolution of the video as well as the aspect
ratio of pixel data that may need to be stretched when being displayed;
this function calculates what the natural size of the underlying
video source is, and returns its height.

The natural size has the correct aspect ratio for displaying the
video and is the minimum size where downscaling is not required.

&lt;note&gt;This natural size is calculated assuming that the video will
be displayed on square pixels.&lt;/note&gt;</doc>
        <return-value transfer-ownership="none">
          <doc xml:space="preserve">The video's natural height</doc>
          <type name="gfloat" c:type="float"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <doc xml:space="preserve">A #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
        </parameters>
      </method>
      <method name="get_natural_size"
              c:identifier="cogl_gst_video_sink_get_natural_size"
              version="1.18"
              stability="Unstable">
        <doc xml:space="preserve">Considering the real resolution of the video as well as the aspect
ratio of pixel data that may need to be stretched when being displayed;
this function calculates what the natural size of the underlying
video source is.

The natural size has the correct aspect ratio for displaying the
video and is the minimum size where downscaling is not required.

&lt;note&gt;This natural size is calculated assuming that the video will
be displayed on square pixels.&lt;/note&gt;</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <doc xml:space="preserve">A #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
          <parameter name="width"
                     direction="out"
                     caller-allocates="0"
                     transfer-ownership="full">
            <doc xml:space="preserve">return location for the video's natural width</doc>
            <type name="gfloat" c:type="float*"/>
          </parameter>
          <parameter name="height"
                     direction="out"
                     caller-allocates="0"
                     transfer-ownership="full">
            <doc xml:space="preserve">return location for the video's natural height</doc>
            <type name="gfloat" c:type="float*"/>
          </parameter>
        </parameters>
      </method>
      <method name="get_natural_width"
              c:identifier="cogl_gst_video_sink_get_natural_width"
              version="1.18"
              stability="Unstable">
        <doc xml:space="preserve">Considering the real resolution of the video as well as the aspect
ratio of pixel data that may need to be stretched when being displayed;
this function calculates what the natural size of the underlying
video source is, and returns its width.

The natural size has the correct aspect ratio for displaying the
video and is the minimum size where downscaling is not required.

&lt;note&gt;This natural size is calculated assuming that the video will
be displayed on square pixels.&lt;/note&gt;</doc>
        <return-value transfer-ownership="none">
          <doc xml:space="preserve">The video's natural width</doc>
          <type name="gfloat" c:type="float"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <doc xml:space="preserve">A #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
        </parameters>
      </method>
      <method name="get_pipeline"
              c:identifier="cogl_gst_video_sink_get_pipeline"
              version="1.16">
        <doc xml:space="preserve">Returns a pipeline suitable for rendering the current frame of the
given video sink. The pipeline will already have the textures for
the frame attached. For simple rendering, an application will
typically call this function immediately before it paints the
video. It can then just paint a rectangle using the returned
pipeline.

An application is free to make a copy of this
pipeline and modify it for custom rendering.

Note: it is considered an error to call this function before the
#CoglGstVideoSink::pipeline-ready signal is emitted.</doc>
        <return-value transfer-ownership="none">
          <doc xml:space="preserve">the pipeline for rendering the
  current frame</doc>
          <type name="Cogl.Pipeline" c:type="CoglPipeline*"/>
        </return-value>
        <parameters>
          <instance-parameter name="vt" transfer-ownership="none">
            <doc xml:space="preserve">The #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
        </parameters>
      </method>
      <method name="get_width_for_height"
              c:identifier="cogl_gst_video_sink_get_width_for_height"
              version="1.16"
              stability="Unstable">
        <doc xml:space="preserve">Calculates a suitable output width for a specific output @height
that will maintain the video's aspect ratio.</doc>
        <return-value transfer-ownership="none">
          <doc xml:space="preserve">An output width for the given output @height.</doc>
          <type name="gfloat" c:type="float"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <doc xml:space="preserve">A #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
          <parameter name="height" transfer-ownership="none">
            <doc xml:space="preserve">A specific output @height</doc>
            <type name="gfloat" c:type="float"/>
          </parameter>
        </parameters>
      </method>
      <method name="is_ready"
              c:identifier="cogl_gst_video_sink_is_ready"
              version="1.16">
        <doc xml:space="preserve">Returns whether the pipeline is ready and so
cogl_gst_video_sink_get_pipeline() and
cogl_gst_video_sink_setup_pipeline() can be called without causing error.

Note: Normally an application will wait until the
#CoglGstVideoSink::pipeline-ready signal is emitted instead of
polling the ready status with this api, but sometimes when a sink
is passed between components that didn't have an opportunity to
connect a signal handler this can be useful.</doc>
        <return-value transfer-ownership="none">
          <doc xml:space="preserve">%TRUE if the sink is ready, else %FALSE</doc>
          <type name="Cogl.Bool" c:type="CoglBool"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <doc xml:space="preserve">The #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
        </parameters>
      </method>
      <method name="set_context"
              c:identifier="cogl_gst_video_sink_set_context"
              version="1.16">
        <doc xml:space="preserve">Sets the #CoglContext that the video sink should use for creating
any resources. This function would normally only be used if the
sink was constructed via gst_element_factory_make() instead of
cogl_gst_video_sink_new().</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <instance-parameter name="vt" transfer-ownership="none">
            <doc xml:space="preserve">The #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
          <parameter name="ctx" transfer-ownership="none">
            <doc xml:space="preserve">The #CoglContext for the sink to use</doc>
            <type name="Cogl.Context" c:type="CoglContext*"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_default_sample"
              c:identifier="cogl_gst_video_sink_set_default_sample"
              version="1.16">
        <doc xml:space="preserve">By default the pipeline generated by
cogl_gst_video_sink_setup_pipeline() and
cogl_gst_video_sink_get_pipeline() will have a layer with a shader
snippet that automatically samples the video. If the application
wants to sample the video in a completely custom way using its own
shader snippet it can set @default_sample to %FALSE to avoid this
default snippet being added. In that case the application's snippet
can call cogl_gst_sample_video0 to sample the texture itself.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <doc xml:space="preserve">The #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
          <parameter name="default_sample" transfer-ownership="none">
            <doc xml:space="preserve">Whether to add the default sampling</doc>
            <type name="Cogl.Bool" c:type="CoglBool"/>
          </parameter>
        </parameters>
      </method>
      <method name="set_first_layer"
              c:identifier="cogl_gst_video_sink_set_first_layer"
              version="1.16">
        <doc xml:space="preserve">Sets the index of the first layer that the sink will use for its
rendering. This is useful if the application wants to have custom
layers that appear before the layers added by the sink. In that
case by default the sink's layers will be modulated with the result
of the application's layers that come before @first_layer.

Note that if this function is called then the name of the function
to call in the shader snippets to sample the video will also
change. For example, if @first_layer is three then the function
will be cogl_gst_sample_video3.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <doc xml:space="preserve">The #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
          <parameter name="first_layer" transfer-ownership="none">
            <doc xml:space="preserve">The new first layer</doc>
            <type name="gint" c:type="int"/>
          </parameter>
        </parameters>
      </method>
      <method name="setup_pipeline"
              c:identifier="cogl_gst_video_sink_setup_pipeline"
              version="1.16">
        <doc xml:space="preserve">Configures the given pipeline so that will be able to render the
video for the @sink. This should only be used if the application
wants to perform some custom rendering using its own pipeline.
Typically an application will call this in response to the
#CoglGstVideoSink::pipeline-ready signal.

Note: it is considered an error to call this function before the
#CoglGstVideoSink::pipeline-ready signal is emitted.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <instance-parameter name="sink" transfer-ownership="none">
            <doc xml:space="preserve">The #CoglGstVideoSink</doc>
            <type name="VideoSink" c:type="CoglGstVideoSink*"/>
          </instance-parameter>
          <parameter name="pipeline" transfer-ownership="none">
            <doc xml:space="preserve">A #CoglPipeline</doc>
            <type name="Cogl.Pipeline" c:type="CoglPipeline*"/>
          </parameter>
        </parameters>
      </method>
      <property name="update-priority" writable="1" transfer-ownership="none">
        <type name="gint" c:type="gint"/>
      </property>
      <field name="parent" readable="0" private="1">
        <type name="GstBase.BaseSink" c:type="GstBaseSink"/>
      </field>
      <field name="priv" readable="0" private="1">
        <type name="VideoSinkPrivate" c:type="CoglGstVideoSinkPrivate*"/>
      </field>
      <glib:signal name="new-frame" when="last" version="1.16">
        <doc xml:space="preserve">The sink will emit this signal whenever there are new textures
available for a new frame of the video. After this signal is
emitted, an application can call cogl_gst_video_sink_get_pipeline()
to get a pipeline suitable for rendering the frame. If the
application is using a custom pipeline it can alternatively call
cogl_gst_video_sink_attach_frame() to attach the textures.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
      </glib:signal>
      <glib:signal name="pipeline-ready" when="last" version="1.16">
        <doc xml:space="preserve">The sink will emit this signal as soon as it has gathered enough
information from the video to configure a pipeline. If the
application wants to do some customized rendering, it can setup its
pipeline after this signal is emitted. The application's pipeline
will typically either be a copy of the one returned by
cogl_gst_video_sink_get_pipeline() or it can be a completely custom
pipeline which is setup using cogl_gst_video_sink_setup_pipeline().

Note that it is an error to call either of those functions before
this signal is emitted. The #CoglGstVideoSink::new-frame signal
will only be emitted after the pipeline is ready so the application
could also create its pipeline in the handler for that.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
      </glib:signal>
    </class>
    <record name="VideoSinkClass"
            c:type="CoglGstVideoSinkClass"
            glib:is-gtype-struct-for="VideoSink"
            version="1.16">
      <field name="parent_class" readable="0" private="1">
        <type name="GstBase.BaseSinkClass" c:type="GstBaseSinkClass"/>
      </field>
      <field name="new_frame">
        <callback name="new_frame">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="sink" transfer-ownership="none">
              <type name="VideoSink" c:type="CoglGstVideoSink*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="pipeline_ready">
        <callback name="pipeline_ready">
          <return-value transfer-ownership="none">
            <type name="none" c:type="void"/>
          </return-value>
          <parameters>
            <parameter name="sink" transfer-ownership="none">
              <type name="VideoSink" c:type="CoglGstVideoSink*"/>
            </parameter>
          </parameters>
        </callback>
      </field>
      <field name="_padding_dummy" readable="0" private="1">
        <array zero-terminated="0" c:type="void" fixed-size="8">
          <type name="gpointer" c:type="void*"/>
        </array>
      </field>
    </record>
    <record name="VideoSinkPrivate"
            c:type="CoglGstVideoSinkPrivate"
            disguised="1">
    </record>
  </namespace>
</repository>