gstreamer/docs/gst/tmpl/gstquery.sgml
Stefan Kost da9c04e2f0 gracefully handle helper method calls to objects that are not beeing controlled, added test case for that
Original commit message from CVS:
* check/gst-libs/controller.c: (GST_START_TEST),
(gst_controller_suite):
* docs/gst/tmpl/gstcaps.sgml:
* docs/gst/tmpl/gstghostpad.sgml:
* docs/gst/tmpl/gstquery.sgml:
* docs/gst/tmpl/gstutils.sgml:
* libs/gst/controller/gst-helper.c: (gst_object_set_controller),
(gst_object_sink_values), (gst_object_get_value_arrays),
(gst_object_get_value_array):
gracefully handle helper method calls to objects that are not beeing
controlled, added test case for that
2005-08-23 21:32:31 +00:00

99 lines
1.6 KiB
Text

<!-- ##### SECTION Title ##### -->
GstQuery
<!-- ##### SECTION Short_Description ##### -->
Dynamically register new query types
<!-- ##### SECTION Long_Description ##### -->
<para>
GstQuery functions are used to register a new query types to the gstreamer core.
Query types can be used to perform queries on pads and elements.
</para>
<!-- ##### SECTION See_Also ##### -->
<para>
#GstPad, #GstElement
</para>
<!-- ##### SECTION Stability_Level ##### -->
<!-- ##### STRUCT GstQuery ##### -->
<para>
</para>
@mini_object:
@type:
@structure:
<!-- ##### ENUM GstQueryType ##### -->
<para>
Standard predefined Query types
</para>
@GST_QUERY_NONE: invalid query type
@GST_QUERY_POSITION: current position in stream
@GST_QUERY_LATENCY: latency of stream
@GST_QUERY_JITTER: current jitter of stream
@GST_QUERY_RATE: current rate of the stream
@GST_QUERY_SEEKING:
@GST_QUERY_CONVERT:
@GST_QUERY_FORMATS:
<!-- ##### MACRO GST_QUERY_TYPE_RATE_DEN ##### -->
<para>
Rates are relative to this value
</para>
<!-- ##### STRUCT GstQueryTypeDefinition ##### -->
<para>
A Query Type definition
</para>
@value: the unique id of the Query type
@nick: a short nick
@description: a longer description of the query type
<!-- ##### FUNCTION gst_query_type_register ##### -->
<para>
</para>
@nick:
@description:
@Returns:
<!-- ##### FUNCTION gst_query_type_get_by_nick ##### -->
<para>
</para>
@nick:
@Returns:
<!-- ##### FUNCTION gst_query_types_contains ##### -->
<para>
</para>
@types:
@type:
@Returns:
<!-- ##### FUNCTION gst_query_type_get_details ##### -->
<para>
</para>
@type:
@Returns:
<!-- # Unused Parameters # -->
@Param1: