gstreamer/docs/gst/tmpl/gstquery.sgml

<!-- ##### 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>

<!-- ##### ENUM GstQueryType ##### -->
<para>
Standard predefined Query types
</para>

@GST_QUERY_NONE: invalid query type
@GST_QUERY_TOTAL: total length of stream
@GST_QUERY_POSITION: current position in stream
@GST_QUERY_LATENCY: latency of stream
@GST_QUERY_JITTER: current jitter of stream
@GST_QUERY_START: start of configured segment
@GST_QUERY_SEGMENT_END: end of configured segment
@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

<!-- ##### MACRO GST_QUERY_TYPE_FUNCTION ##### -->
<para>
Convenience function to define a function that returns an array of query types.
</para>

@type: Type of first argument for function
@functionname: The name of the function
@...: query types, 0 to end the list


<!-- ##### 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: