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1821 lines
25 KiB
Text
1821 lines
25 KiB
Text
<!-- ##### SECTION Title ##### -->
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GstPad
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<!-- ##### SECTION Short_Description ##### -->
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Object contained by elements that allows links to other elements
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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A #GstElement is linked to other elements via "pads", which are extremely
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light-weight generic link points.
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After two pads are retrieved from an element with gst_element_get_pad(),
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the pads can be link with gst_pad_link(). (For quick links,
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you can also use gst_element_link(), which will make the obvious
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link for you if it's straightforward.)
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</para>
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<para>
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Pads are typically created from a #GstPadTemplate with
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gst_pad_new_from_template().
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</para>
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<para>
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Pads have #GstCaps attached to it to describe the media type they
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are capable of dealing with.
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gst_pad_get_caps() and gst_pad_try_set_caps() are used to
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manipulate the caps of the pads.
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Pads created from a pad template cannot set capabilities that are
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incompatible with the pad template capabilities.
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</para>
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<para>
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Pads without pad templates can be created with gst_pad_new(),
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which takes a direction and a name as an argument. If the name is NULL,
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then a guaranteed unique name will be assigned to it.
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</para>
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<para>
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gst_pad_get_parent() will retrieve the #GstElement that owns the pad.
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</para>
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<para>
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A #GstElement creating a pad will typically use the various
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gst_pad_set_*_function() calls to register callbacks for various events
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on the pads.
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</para>
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<para>
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GstElements will use gst_pad_push() and gst_pad_pull() to push out
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or pull in a buffer.
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gst_pad_select() and gst_pad_selectv() are used by plugins to wait for the
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first incoming buffer or event on any of the given set of pads.
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</para>
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<para>
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To send a #GstEvent on a pad, use gst_pad_send_event().
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</para>
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<para>
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Last reviewed on December 13th, 2002 (0.5.0.1)
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</para>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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#GstPadTemplate, #GstElement, #GstEvent
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</para>
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<!-- ##### STRUCT GstRealPad ##### -->
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<para>
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</para>
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<!-- ##### STRUCT GstGhostPad ##### -->
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<para>
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</para>
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<!-- ##### STRUCT GstRealPadClass ##### -->
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<para>
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</para>
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@parent_class:
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@caps_nego_failed:
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@linked:
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@unlinked:
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@appfixatefunc:
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@_gst_reserved:
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<!-- ##### STRUCT GstGhostPadClass ##### -->
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<para>
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</para>
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@parent_class:
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@_gst_reserved:
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<!-- ##### MACRO GST_IS_PAD_FAST ##### -->
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<para>
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</para>
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@obj:
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<!-- ##### MACRO GST_PAD_CLASS ##### -->
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<para>
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</para>
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@klass:
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<!-- ##### MACRO GST_TYPE_REAL_PAD ##### -->
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<para>
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</para>
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<!-- ##### MACRO GST_IS_REAL_PAD ##### -->
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<para>
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</para>
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@obj:
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<!-- ##### MACRO GST_IS_REAL_PAD_FAST ##### -->
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<para>
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</para>
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@obj:
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<!-- ##### MACRO GST_IS_REAL_PAD_CLASS ##### -->
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<para>
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</para>
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@klass:
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<!-- # Unused Parameters # -->
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@obj:
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<!-- ##### MACRO GST_REAL_PAD ##### -->
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<para>
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</para>
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@obj:
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<!-- ##### MACRO GST_REAL_PAD_CLASS ##### -->
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<para>
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</para>
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@klass:
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<!-- ##### MACRO GST_TYPE_GHOST_PAD ##### -->
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<para>
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</para>
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<!-- ##### MACRO GST_IS_GHOST_PAD ##### -->
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<para>
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</para>
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@obj:
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<!-- ##### MACRO GST_IS_GHOST_PAD_FAST ##### -->
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<para>
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</para>
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@obj:
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<!-- ##### MACRO GST_IS_GHOST_PAD_CLASS ##### -->
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<para>
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</para>
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@klass:
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<!-- # Unused Parameters # -->
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@obj:
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<!-- ##### MACRO GST_GHOST_PAD ##### -->
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<para>
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</para>
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@obj:
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<!-- ##### MACRO GST_GHOST_PAD_CLASS ##### -->
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<para>
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</para>
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@klass:
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<!-- ##### STRUCT GstStaticPadTemplate ##### -->
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<para>
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</para>
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@name_template:
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@direction:
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@presence:
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@static_caps:
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<!-- ##### STRUCT GstPadLink ##### -->
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<para>
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</para>
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<!-- ##### ENUM GstPadLinkReturn ##### -->
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<para>
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The result of a pad link.
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</para>
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@GST_PAD_LINK_REFUSED: the link was refused.
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@GST_PAD_LINK_DELAYED: the link was delayed, probably because the
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element needs more specific pad capabilitiess.
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@GST_PAD_LINK_OK: the link succeeded.
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@GST_PAD_LINK_DONE: the link succeeded,
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any more attempts are not needed.
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<!-- ##### MACRO GST_PAD_LINK_FAILED ##### -->
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<para>
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</para>
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@ret:
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<!-- ##### MACRO GST_PAD_LINK_SUCCESSFUL ##### -->
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<para>
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</para>
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@ret:
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<!-- ##### MACRO GST_PAD_QUERY_TYPE_FUNCTION ##### -->
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<para>
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A convenience macro to construct query type functions
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</para>
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@functionname: the name of the function
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@...: query types, 0 to mark the last element
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<!-- ##### MACRO GST_PAD_FORMATS_FUNCTION ##### -->
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<para>
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Convenience function to define an array of formats that can be used
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as #GstPadGetFormatsFunction.
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</para>
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@functionname: The name of the function
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@...: comma separated list of formats, 0 to mark the end
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<!-- ##### MACRO GST_PAD_EVENT_MASK_FUNCTION ##### -->
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<para>
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Convenience function to define an array of event masks that can be used
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as #GstPadGetEventMaskFunction.
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</para>
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@functionname: The name of the function
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@...: comma separated list of event maks, { 0, } to mark the end
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<!-- ##### USER_FUNCTION GstPadChainFunction ##### -->
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<para>
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A function that will be called when chaining buffers.
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</para>
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@pad: the #GstPad that performed the chain.
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@data:
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<!-- # Unused Parameters # -->
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@buf: the #GstBuffer that is chained.
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<!-- ##### USER_FUNCTION GstPadGetFunction ##### -->
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<para>
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A function that will be called when pulling a buffer.
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</para>
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@pad: the #GstPad to get a buffer from.
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@Returns: the #GstBuffer pulled.
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<!-- ##### USER_FUNCTION GstPadEventFunction ##### -->
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<para>
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Function signature to handle an event for the pad.
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</para>
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@pad: the #GstPad to handle the event.
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@event: the #GstEvent to handle.
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@Returns: TRUE if the pad could handle the event.
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<!-- ##### USER_FUNCTION GstPadConvertFunction ##### -->
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<para>
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The signature of a convert function.
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</para>
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@pad: the #GstPad to perform the convert on.
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@src_format: the source #GstFormat of the conversion.
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@src_value: the source value of the conversion.
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@dest_format: a pointer to the destination #GstFormat.
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@dest_value: a pointer to the destination value.
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@Returns: TRUE if the conversion could be performed.
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<!-- ##### USER_FUNCTION GstPadQueryFunction ##### -->
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<para>
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The signature of the query function.
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</para>
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@pad: the #GstPad to query.
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@type: the #GstPadQueryType.
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@format: a pointer to the target #GstFormat.
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@value: a pointer to the target value.
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@Returns: TRUE if the query could be performed.
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<!-- ##### USER_FUNCTION GstPadIntLinkFunction ##### -->
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<para>
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The signature of the internal pad link function.
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</para>
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@pad: The #GstPad to query.
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@Returns: a newly allocated #GList of pads that are linked to
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the given pad on the inside of the parent element.
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The caller must call g_list_free() on it after use.
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<!-- ##### USER_FUNCTION GstPadFormatsFunction ##### -->
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<para>
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The signature of the formats function.
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</para>
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@pad: a #GstPad to query
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@Returns: an array of formats
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<!-- ##### USER_FUNCTION GstPadEventMaskFunction ##### -->
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<para>
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The signature of the eventmask function.
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</para>
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@pad: the #GstPad to query
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@Returns: an array of event masks
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<!-- ##### USER_FUNCTION GstPadQueryTypeFunction ##### -->
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<para>
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The signature of the query types function.
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</para>
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@pad: a #GstPad to query
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@Returns: an array of query types
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<!-- ##### USER_FUNCTION GstPadLinkFunction ##### -->
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<para>
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Function signature to handle a new link on the pad.
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</para>
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@pad: the #GstPad that is linked.
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@caps: the peer's #GstCaps.
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@Returns: the result of the link with the specified caps.
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<!-- ##### USER_FUNCTION GstPadUnlinkFunction ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### USER_FUNCTION GstPadGetCapsFunction ##### -->
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<para>
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Returns the capabilities of the specified pad. By default this function
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will return the pad template capabilities, but can optionally be overridden.
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</para>
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@pad: the #GstPad to get the capabilities of.
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@Returns: the #GstCaps of the pad.
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<!-- # Unused Parameters # -->
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@caps: the peer's #GstCaps, can be used to filter the capabilities.
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<!-- ##### USER_FUNCTION GstPadFixateFunction ##### -->
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<para>
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</para>
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@pad:
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@caps:
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@Returns:
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<!-- ##### USER_FUNCTION GstPadBufferAllocFunction ##### -->
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<para>
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</para>
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@pad:
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@offset:
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@size:
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@Returns:
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<!-- ##### USER_FUNCTION GstPadDispatcherFunction ##### -->
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<para>
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A dispatcher function is called for all internally linked pads, see
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gst_pad_dispatcher().
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</para>
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@pad: the #GstPad that is dispatched.
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@data: the gpointer to optional user data.
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@Returns: TRUE if the dispatching procedure has to be stopped.
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<!-- ##### ENUM GstPadDirection ##### -->
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<para>
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The direction of a pad.
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</para>
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@GST_PAD_UNKNOWN: direction is unknown.
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@GST_PAD_SRC: the pad is a source pad.
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@GST_PAD_SINK: the pad is a sink pad.
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<!-- ##### ENUM GstPadFlags ##### -->
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<para>
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Flags for the pad.
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</para>
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@GST_PAD_DISABLED: the pad is disabled.
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@GST_PAD_NEGOTIATING:
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@GST_PAD_FLAG_LAST: subclasses can use this number to enumerate their flags.
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<!-- ##### MACRO GST_PAD_NAME ##### -->
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<para>
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Gets the name of the pad.
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</para>
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@pad: a #GstPad to get the name of.
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@Returns: the pad's name.
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<!-- ##### MACRO GST_PAD_PARENT ##### -->
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<para>
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Gets the parent element of this pad.
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</para>
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@pad: a #GstPad to get the parent of.
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@Returns: the parent #GstElement of this pad.
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<!-- ##### MACRO GST_PAD_ELEMENT_PRIVATE ##### -->
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<para>
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Gets the private data set by the element that owns the pad.
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</para>
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@pad: a #GstPad to get the private data of.
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#Returns: a gpointer to the private data.
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<!-- ##### MACRO GST_PAD_PAD_TEMPLATE ##### -->
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<para>
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Gets the pad template that was used to create this pad.
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</para>
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@pad: a #GstPad to get the pad template of.
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#Returns: the #GstPadTemplate used to create the pad, or NULL if none was
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used.
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<!-- ##### MACRO GST_RPAD_DIRECTION ##### -->
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<para>
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Get the direction of the real pad.
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</para>
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@pad: the realpad to query.
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<!-- ##### MACRO GST_RPAD_CAPS ##### -->
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<para>
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Get the caps of the real pad.
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</para>
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@pad: the real pad to query.
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<!-- ##### MACRO GST_RPAD_APPFILTER ##### -->
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<para>
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Get the application filter for this pad
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</para>
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@pad: the pad to query
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<!-- ##### MACRO GST_RPAD_PEER ##### -->
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<para>
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Get the peer element of the real pad.
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</para>
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@pad: the real pad to query.
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<!-- ##### MACRO GST_RPAD_CHAINFUNC ##### -->
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<para>
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Get the chain function of the real pad.
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</para>
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@pad: the real pad to query.
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<!-- ##### MACRO GST_RPAD_CHAINHANDLER ##### -->
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<para>
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Get the eventhandler function from the real pad.
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</para>
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@pad: the real pad to query.
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<!-- ##### MACRO GST_RPAD_GETFUNC ##### -->
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<para>
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Get get getfunction of the real pad.
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</para>
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@pad: the real pad to query.
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<!-- ##### MACRO GST_RPAD_GETHANDLER ##### -->
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<para>
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Get the gethandler function of this real pad.
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</para>
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@pad: the real pad to query.
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<!-- ##### MACRO GST_RPAD_EVENTFUNC ##### -->
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<para>
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Get the event function of this real pad.
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</para>
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@pad: the real pad to query.
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<!-- ##### MACRO GST_RPAD_EVENTHANDLER ##### -->
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<para>
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Get the eventhandler function of this real pad.
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</para>
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@pad: the real pad to query.
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<!-- ##### MACRO GST_RPAD_CONVERTFUNC ##### -->
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<para>
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Get the convert function of this pad
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</para>
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@pad: the pad to query
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<!-- ##### MACRO GST_RPAD_QUERYFUNC ##### -->
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<para>
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Get the query function of this pad
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</para>
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@pad: the pad to query
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<!-- ##### MACRO GST_RPAD_INTLINKFUNC ##### -->
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<para>
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Get the internal link function of this pad
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</para>
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@pad: the pad to query
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<!-- ##### MACRO GST_RPAD_FORMATSFUNC ##### -->
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<para>
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Get the formats function of this pad
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</para>
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@pad: the pad to query
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<!-- ##### MACRO GST_RPAD_QUERYTYPEFUNC ##### -->
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<para>
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Get the query types function of this pad
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</para>
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@pad: the pad to query
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<!-- ##### MACRO GST_RPAD_EVENTMASKFUNC ##### -->
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<para>
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Get the event mask function of this pad
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</para>
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@pad: the pad to query
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<!-- ##### MACRO GST_RPAD_LINKFUNC ##### -->
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<para>
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Get the link function of the pad
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</para>
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@pad: the pad to query
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<!-- ##### MACRO GST_RPAD_UNLINKFUNC ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### MACRO GST_RPAD_GETCAPSFUNC ##### -->
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<para>
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Get the getcaps function of this pad
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|
</para>
|
|
|
|
@pad: the pad to query
|
|
|
|
|
|
<!-- ##### MACRO GST_RPAD_FIXATEFUNC ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
|
|
|
|
<!-- ##### MACRO GST_RPAD_BUFFERALLOCFUNC ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
|
|
|
|
<!-- ##### MACRO GST_RPAD_LINK ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
|
|
|
|
<!-- ##### MACRO GST_RPAD_EXPLICIT_CAPS ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
|
|
|
|
<!-- ##### MACRO GST_GPAD_REALPAD ##### -->
|
|
<para>
|
|
Get the real pad of this ghost pad.
|
|
</para>
|
|
|
|
@pad: the real pad to query.
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_REALIZE ##### -->
|
|
<para>
|
|
Returns the real pad of this pad.
|
|
</para>
|
|
|
|
@pad: a #GstPad to realize.
|
|
@Returns: the actual #GstPad.
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_DIRECTION ##### -->
|
|
<para>
|
|
Gets the pad's direction.
|
|
</para>
|
|
|
|
@pad: a #GstPad to get the direction of.
|
|
@Returns: the #GstPadDirection of the pad.
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_CAPS ##### -->
|
|
<para>
|
|
Gets the capabilities of a pad.
|
|
</para>
|
|
|
|
@pad: a #GstPad to get the capabilities of.
|
|
@Returns: the #GstCaps of the pad.
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_PEER ##### -->
|
|
<para>
|
|
Gets the peer pad of this pad. The peer pad is the pad on to which the parent
|
|
element is linked through this pad.
|
|
</para>
|
|
|
|
@pad: a #GstPad to get the peer pad of.
|
|
@Returns: the peer #GstPad.
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_IS_LINKED ##### -->
|
|
<para>
|
|
Checks if the pad is linked.
|
|
</para>
|
|
|
|
@pad: a #GstPad to check.
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_IS_ACTIVE ##### -->
|
|
<para>
|
|
Checks if the pad is active.
|
|
</para>
|
|
|
|
@pad: a #GstPad to check
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_IS_NEGOTIATING ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_IS_USABLE ##### -->
|
|
<para>
|
|
Checks if a pad is usable. A usable pad is both linked and active.
|
|
</para>
|
|
|
|
@pad: a #GstPad to check
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_CAN_PULL ##### -->
|
|
<para>
|
|
Checks if buffers can be pulled from this buffer.
|
|
</para>
|
|
|
|
@pad: a #GstPad to check on if a buffer can be pulled from it.
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_IS_SRC ##### -->
|
|
<para>
|
|
Checks if the pad is a source pad.
|
|
</para>
|
|
|
|
@pad: a #GstPad to check.
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_IS_SINK ##### -->
|
|
<para>
|
|
Checks if the pad is a sink pad.
|
|
</para>
|
|
|
|
@pad: a #GstPad to check.
|
|
|
|
|
|
<!-- ##### MACRO GST_TYPE_PAD_TEMPLATE ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_TEMPLATE ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@obj:
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_TEMPLATE_CLASS ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@klass:
|
|
|
|
|
|
<!-- ##### MACRO GST_IS_PAD_TEMPLATE ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@obj:
|
|
|
|
|
|
<!-- ##### MACRO GST_IS_PAD_TEMPLATE_CLASS ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@klass:
|
|
<!-- # Unused Parameters # -->
|
|
@obj:
|
|
|
|
|
|
<!-- ##### ENUM GstPadPresence ##### -->
|
|
<para>
|
|
Indicates when this pad will become available.
|
|
</para>
|
|
|
|
@GST_PAD_ALWAYS: the pad is always available
|
|
@GST_PAD_SOMETIMES: the pad will become available depending on the media stream
|
|
@GST_PAD_REQUEST: th pad is only available on request with
|
|
gst_element_request_pad_by_name() or gst_element_request_compatible_pad().
|
|
|
|
<!-- ##### MACRO GST_PAD_TEMPLATE_NAME_TEMPLATE ##### -->
|
|
<para>
|
|
Get the nametemplate of the padtemplate.
|
|
</para>
|
|
|
|
@templ: the template to query
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_TEMPLATE_DIRECTION ##### -->
|
|
<para>
|
|
Get the direction of the padtemplate.
|
|
</para>
|
|
|
|
@templ: the template to query
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_TEMPLATE_PRESENCE ##### -->
|
|
<para>
|
|
Get the presence of the padtemplate.
|
|
</para>
|
|
|
|
@templ: the template to query
|
|
|
|
|
|
<!-- ##### MACRO GST_PAD_TEMPLATE_CAPS ##### -->
|
|
<para>
|
|
Get a handle to the padtemplate #GstCaps
|
|
</para>
|
|
|
|
@templ: the template to query
|
|
|
|
|
|
<!-- ##### ENUM GstPadTemplateFlags ##### -->
|
|
<para>
|
|
Flags for the padtemplate
|
|
</para>
|
|
|
|
@GST_PAD_TEMPLATE_FIXED: The padtemplate has no variable properties
|
|
@GST_PAD_TEMPLATE_FLAG_LAST: first flag that can be used by subclasses.
|
|
|
|
<!-- ##### MACRO GST_PAD_TEMPLATE_IS_FIXED ##### -->
|
|
<para>
|
|
Check if the properties of the padtemplate are fixed
|
|
</para>
|
|
|
|
@templ: the template to query
|
|
|
|
|
|
<!-- ##### MACRO GST_STATIC_PAD_TEMPLATE ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@padname:
|
|
@dir:
|
|
@pres:
|
|
@caps:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_real_pad_get_type ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_ghost_pad_get_type ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_new ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@name:
|
|
@direction:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_new_from_template ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@templ:
|
|
@name:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_custom_new ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@type:
|
|
@name:
|
|
@direction:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_custom_new_from_template ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@type:
|
|
@templ:
|
|
@name:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_name ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@name:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_name ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_direction ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_active ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@active:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_is_active ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_element_private ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@priv:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_element_private ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_parent ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@parent:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_parent ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_real_parent ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_scheduler ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_add_ghost_pad ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@ghostpad:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_remove_ghost_pad ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@ghostpad:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_ghost_pad_list ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_pad_template ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_bufferalloc_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@bufalloc:
|
|
<!-- # Unused Parameters # -->
|
|
@bufferalloc:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_alloc_buffer ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@offset:
|
|
@size:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_chain_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@chain:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_get_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@get:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_event_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@event:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_event_mask_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@mask_func:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_event_masks ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_event_masks_default ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_link_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@link:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_can_link ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@srcpad:
|
|
@sinkpad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_can_link_filtered ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@srcpad:
|
|
@sinkpad:
|
|
@filtercaps:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_unlink_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@unlink:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_link ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@srcpad:
|
|
@sinkpad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_link_filtered ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@srcpad:
|
|
@sinkpad:
|
|
@filtercaps:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_unlink ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@srcpad:
|
|
@sinkpad:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_is_linked ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_peer ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_negotiated_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_is_negotiated ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_pad_template_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_try_set_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@caps:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_try_set_caps_nonfixed ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@caps:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_check_compatibility ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@srcpad:
|
|
@sinkpad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_getcaps_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@getcaps:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_fixate_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@fixate:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_proxy_getcaps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_proxy_pad_link ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@caps:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_proxy_fixate ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@caps:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_proxy_link ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@caps:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_explicit_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@caps:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_use_explicit_caps ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### FUNCTION gst_pad_relink_filtered ##### -->
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<para>
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</para>
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@srcpad:
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@sinkpad:
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@filtercaps:
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@Returns:
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<!-- ##### FUNCTION gst_pad_perform_negotiate ##### -->
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<para>
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</para>
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@srcpad:
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@sinkpad:
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@Returns:
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<!-- ##### FUNCTION gst_pad_renegotiate ##### -->
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<para>
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</para>
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@pad:
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@Returns:
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<!-- ##### FUNCTION gst_pad_unnegotiate ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### FUNCTION gst_pad_try_relink_filtered ##### -->
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<para>
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</para>
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@srcpad:
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@sinkpad:
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@filtercaps:
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@Returns:
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<!-- ##### FUNCTION gst_pad_get_allowed_caps ##### -->
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<para>
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</para>
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@pad:
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@Returns:
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<!-- ##### FUNCTION gst_pad_caps_change_notify ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### FUNCTION gst_pad_recover_caps_error ##### -->
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<para>
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</para>
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@pad:
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@allowed:
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@Returns:
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<!-- ##### FUNCTION gst_pad_push ##### -->
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<para>
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</para>
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@pad:
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@data:
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<!-- # Unused Parameters # -->
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@buf:
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<!-- ##### FUNCTION gst_pad_pull ##### -->
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<para>
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</para>
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@pad:
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@Returns:
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<!-- ##### FUNCTION gst_pad_send_event ##### -->
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<para>
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</para>
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@pad:
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@event:
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@Returns:
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<!-- ##### FUNCTION gst_pad_event_default ##### -->
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<para>
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</para>
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@pad:
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@event:
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|
@Returns:
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<!-- ##### FUNCTION gst_pad_select ##### -->
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<para>
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</para>
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@pad:
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@Varargs:
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@Returns:
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<!-- # Unused Parameters # -->
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@padlist:
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<!-- ##### FUNCTION gst_pad_selectv ##### -->
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<para>
|
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|
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</para>
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|
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@padlist:
|
|
@Returns:
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|
<!-- # Unused Parameters # -->
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@pad:
|
|
@Varargs:
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|
|
<!-- ##### FUNCTION gst_pad_select_valist ##### -->
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|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@varargs:
|
|
@Returns:
|
|
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|
|
<!-- ##### FUNCTION gst_pad_collect ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@selected:
|
|
@pad:
|
|
@Varargs:
|
|
@Returns:
|
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|
|
<!-- ##### FUNCTION gst_pad_collectv ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@selected:
|
|
@padlist:
|
|
@Returns:
|
|
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|
|
<!-- ##### FUNCTION gst_pad_collect_valist ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@selected:
|
|
@pad:
|
|
@varargs:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_formats_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@formats:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_formats ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_formats_default ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_convert_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@convert:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_convert ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@src_format:
|
|
@src_value:
|
|
@dest_format:
|
|
@dest_value:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_convert_default ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@src_format:
|
|
@src_value:
|
|
@dest_format:
|
|
@dest_value:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_query_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@query:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_query_type_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@type_func:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_query_types ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_query_types_default ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_query ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@type:
|
|
@format:
|
|
@value:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_query_default ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@type:
|
|
@format:
|
|
@value:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_internal_link_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@intlink:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_internal_links ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_internal_links_default ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_dispatcher ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@dispatch:
|
|
@data:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### MACRO gst_pad_add_probe ##### -->
|
|
<para>
|
|
Adds the probe to the given pad
|
|
</para>
|
|
|
|
@pad: The pad to add the probe to
|
|
@probe: The probe to add to the pad
|
|
|
|
|
|
<!-- ##### MACRO gst_pad_remove_probe ##### -->
|
|
<para>
|
|
Remove the probe from the pad
|
|
</para>
|
|
|
|
@pad: The pad to remove the probe of
|
|
@probe: The probe to remove
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_load_and_link ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@self:
|
|
@parent:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_ghost_pad_new ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@name:
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_template_get_type ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_template_new ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@name_template:
|
|
@direction:
|
|
@presence:
|
|
@caps:
|
|
@Returns:
|
|
<!-- # Unused Parameters # -->
|
|
@Varargs:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_static_pad_template_get ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad_template:
|
|
@Returns:
|
|
<!-- # Unused Parameters # -->
|
|
@templ:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_template_get_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@templ:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_template_get_caps_by_name ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@templ:
|
|
@name:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_ghost_pad_save_thyself ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@parent:
|
|
@Returns:
|
|
|
|
|