mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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1332 lines
17 KiB
Text
1332 lines
17 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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<!-- ##### SECTION Stability_Level ##### -->
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<!-- ##### STRUCT GstPad ##### -->
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<para>
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</para>
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@stream_rec_lock:
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@task:
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@preroll_lock:
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@preroll_cond:
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@block_cond:
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@block_callback:
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@block_data:
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@caps:
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@getcapsfunc:
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@setcapsfunc:
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@acceptcapsfunc:
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@fixatecapsfunc:
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@activatefunc:
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@activatepushfunc:
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@activatepullfunc:
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@linkfunc:
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@unlinkfunc:
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@peer:
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@sched_private:
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@chainfunc:
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@checkgetrangefunc:
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@getrangefunc:
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@eventfunc:
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@mode:
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@querytypefunc:
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@queryfunc:
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@intlinkfunc:
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@bufferallocfunc:
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@do_buffer_signals:
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@do_event_signals:
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<!-- ##### SIGNAL GstPad::have-data ##### -->
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<para>
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</para>
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@gstpad: the object which received the signal.
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@arg1:
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@Returns:
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<!-- ##### SIGNAL GstPad::linked ##### -->
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<para>
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</para>
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@gstpad: the object which received the signal.
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@arg1:
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<!-- ##### SIGNAL GstPad::request-link ##### -->
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<para>
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</para>
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@gstpad: the object which received the signal.
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<!-- ##### SIGNAL GstPad::unlinked ##### -->
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<para>
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</para>
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@gstpad: the object which received the signal.
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@arg1:
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<!-- ##### ARG GstPad:caps ##### -->
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<para>
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</para>
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<!-- ##### ARG GstPad:direction ##### -->
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<para>
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</para>
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<!-- ##### ARG GstPad:template ##### -->
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<para>
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</para>
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<!-- ##### MACRO GST_PAD_LINK_FAILED ##### -->
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<para>
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Macro to test if the given #GstPadLinkReturn value indicates a
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failed negotiation step (REFUSED/DELAYED).
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</para>
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@ret: the #GstPadLinkReturn value
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<!-- ##### MACRO GST_PAD_LINK_SUCCESSFUL ##### -->
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<para>
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Macro to test if the given #GstPadLinkReturn value indicates a
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successfull negotiation step (OK/DONE).
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</para>
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@ret: the #GstPadLinkReturn value
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<!-- ##### USER_FUNCTION GstPadActivateFunction ##### -->
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<para>
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</para>
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@pad:
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@Returns:
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<!-- ##### USER_FUNCTION GstPadActivateModeFunction ##### -->
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<para>
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</para>
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@pad:
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@active:
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@Returns:
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<!-- ##### USER_FUNCTION GstPadBlockCallback ##### -->
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<para>
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</para>
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@pad:
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@blocked:
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@user_data:
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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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@buffer:
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@Returns:
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<!-- # Unused Parameters # -->
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@data:
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@buf: the #GstBuffer that is chained.
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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 GstPadCheckGetRangeFunction ##### -->
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<para>
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</para>
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@pad:
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@Returns:
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<!-- ##### USER_FUNCTION GstPadGetRangeFunction ##### -->
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<para>
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</para>
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@pad:
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@offset:
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@length:
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@buffer:
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@Returns:
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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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@query:
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@Returns: TRUE if the query could be performed.
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<!-- # Unused Parameters # -->
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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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<!-- ##### 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 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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@peer:
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@Returns: the result of the link with the specified caps.
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<!-- # Unused Parameters # -->
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@caps: the peer's #GstCaps.
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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 GstPadAcceptCapsFunction ##### -->
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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 GstPadFixateCapsFunction ##### -->
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<para>
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</para>
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@pad:
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@caps:
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<!-- ##### USER_FUNCTION GstPadGetCapsFunction ##### -->
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<para>
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Returns a copy of the capabilities of the specified pad. By default this
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function will return the pad template capabilities, but can optionally
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be overridden.
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</para>
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@pad: the #GstPad to get the capabilities of.
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@Returns: a newly allocated copy #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 GstPadSetCapsFunction ##### -->
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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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@caps:
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@buf:
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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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</para>
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@GST_PAD_BLOCKED:
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@GST_PAD_FLUSHING:
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@GST_PAD_IN_GETCAPS:
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@GST_PAD_IN_SETCAPS:
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@GST_PAD_FLAG_LAST:
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<!-- ##### ENUM GstPadLinkReturn ##### -->
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@GST_PAD_LINK_OK:
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@GST_PAD_LINK_WRONG_HIERARCHY:
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@GST_PAD_LINK_WAS_LINKED:
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@GST_PAD_LINK_WRONG_DIRECTION:
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@GST_PAD_LINK_NOFORMAT:
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@GST_PAD_LINK_NOSCHED:
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@GST_PAD_LINK_REFUSED:
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<!-- ##### ENUM GstPadPresence ##### -->
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<para>
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Indicates when this pad will become available.
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</para>
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@GST_PAD_ALWAYS: the pad is always available
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@GST_PAD_SOMETIMES: the pad will become available depending on the media stream
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@GST_PAD_REQUEST: the pad is only available on request with
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gst_element_request_pad_by_name() or gst_element_request_compatible_pad().
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<!-- ##### ENUM GstFlowReturn ##### -->
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<para>
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</para>
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@GST_FLOW_RESEND:
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@GST_FLOW_OK:
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@GST_FLOW_NOT_LINKED:
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@GST_FLOW_WRONG_STATE:
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@GST_FLOW_UNEXPECTED:
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@GST_FLOW_NOT_NEGOTIATED:
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@GST_FLOW_ERROR:
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@GST_FLOW_NOT_SUPPORTED:
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<!-- ##### ENUM GstActivateMode ##### -->
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<para>
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</para>
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@GST_ACTIVATE_NONE:
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@GST_ACTIVATE_PUSH:
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@GST_ACTIVATE_PULL:
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<!-- ##### MACRO GST_PREROLL_BROADCAST ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### MACRO GST_PREROLL_GET_COND ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### MACRO GST_PREROLL_GET_LOCK ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### MACRO GST_PREROLL_LOCK ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### MACRO GST_PREROLL_SIGNAL ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### MACRO GST_PREROLL_TIMED_WAIT ##### -->
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<para>
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</para>
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@pad:
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@timeval:
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<!-- ##### MACRO GST_PREROLL_TRYLOCK ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### MACRO GST_PREROLL_UNLOCK ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### MACRO GST_PREROLL_WAIT ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### MACRO GST_STREAM_GET_LOCK ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### MACRO GST_STREAM_LOCK ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### MACRO GST_STREAM_LOCK_FULL ##### -->
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<para>
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</para>
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@pad:
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@t:
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<!-- ##### MACRO GST_STREAM_TRYLOCK ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### MACRO GST_STREAM_UNLOCK ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### MACRO GST_STREAM_UNLOCK_FULL ##### -->
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<para>
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</para>
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@pad:
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<!-- ##### MACRO GST_FLOW_IS_FATAL ##### -->
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<para>
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</para>
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@ret:
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<!-- ##### FUNCTION gst_pad_new ##### -->
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<para>
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</para>
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@name:
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@direction:
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@Returns:
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<!-- ##### FUNCTION gst_pad_new_from_template ##### -->
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<para>
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</para>
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@templ:
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@name:
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@Returns:
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<!-- ##### MACRO gst_pad_get_name ##### -->
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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_get_direction ##### -->
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<para>
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</para>
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@pad:
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@Returns:
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<!-- ##### MACRO gst_pad_get_parent ##### -->
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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_get_parent_element ##### -->
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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_set_active ##### -->
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<para>
|
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</para>
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@pad:
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@active:
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@Returns:
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<!-- # Unused Parameters # -->
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@mode:
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<!-- ##### FUNCTION gst_pad_is_active ##### -->
|
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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_set_blocked ##### -->
|
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<para>
|
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|
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</para>
|
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@pad:
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@blocked:
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@Returns:
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<!-- ##### FUNCTION gst_pad_set_blocked_async ##### -->
|
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<para>
|
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|
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</para>
|
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|
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@pad:
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@blocked:
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@callback:
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@user_data:
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@Returns:
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<!-- ##### FUNCTION gst_pad_is_blocked ##### -->
|
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<para>
|
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|
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</para>
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@pad:
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@Returns:
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<!-- ##### FUNCTION gst_pad_set_element_private ##### -->
|
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<para>
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|
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</para>
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@pad:
|
|
@priv:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_element_private ##### -->
|
|
<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:
|
|
@caps:
|
|
@buf:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_chain_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@chain:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_chain ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@buffer:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_checkgetrange_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@check:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_getrange_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@get:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_range ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@offset:
|
|
@size:
|
|
@buffer:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_event_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@event:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_unlink_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@unlink:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_activate_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@activate:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_activatepull_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@activatepull:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_start_task ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@func:
|
|
@data:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_pause_task ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_stop_task ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_link ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@srcpad:
|
|
@sinkpad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_unlink ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@srcpad:
|
|
@sinkpad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_is_linked ##### -->
|
|
<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_accept_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@caps:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_negotiated_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@caps:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_pad_template_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_acceptcaps_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@acceptcaps:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_getcaps_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@getcaps:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_setcaps_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@setcaps:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_proxy_getcaps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_proxy_setcaps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@caps:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_allowed_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@srcpad:
|
|
@Returns:
|
|
<!-- # Unused Parameters # -->
|
|
@pad:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_fixed_caps_func ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_get_peer ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_peer_get_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_peer_accept_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@caps:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_use_fixed_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_fixate_caps ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@caps:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_fixatecaps_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@fixatecaps:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_set_activatepush_function ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@activatepush:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_push ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@buffer:
|
|
@Returns:
|
|
<!-- # Unused Parameters # -->
|
|
@data:
|
|
@buf:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_push_event ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@event:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_check_pull_range ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_pull_range ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@offset:
|
|
@size:
|
|
@buffer:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_activate_pull ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@active:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_activate_push ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@active:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_send_event ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@event:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_event_default ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@event:
|
|
@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:
|
|
@query:
|
|
@Returns:
|
|
<!-- # Unused Parameters # -->
|
|
@type:
|
|
@format:
|
|
@value:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_query_default ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@query:
|
|
@Returns:
|
|
<!-- # Unused Parameters # -->
|
|
@type:
|
|
@format:
|
|
@value:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_query_position ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@format:
|
|
@cur:
|
|
@end:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_query_convert ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@src_format:
|
|
@src_val:
|
|
@dest_format:
|
|
@dest_val:
|
|
@Returns:
|
|
<!-- # Unused Parameters # -->
|
|
@dest_fmt:
|
|
|
|
|
|
<!-- ##### 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:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_load_and_link ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@self:
|
|
@parent:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_add_data_probe ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@handler:
|
|
@data:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_add_buffer_probe ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@handler:
|
|
@data:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_add_event_probe ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@handler:
|
|
@data:
|
|
@Returns:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_remove_data_probe ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@handler:
|
|
@data:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_remove_buffer_probe ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@handler:
|
|
@data:
|
|
|
|
|
|
<!-- ##### FUNCTION gst_pad_remove_event_probe ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@pad:
|
|
@handler:
|
|
@data:
|
|
|
|
|