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inlined and extended docs
Original commit message from CVS: * docs/gst/tmpl/.cvsignore: * docs/gst/tmpl/gstquery.sgml: * docs/gst/tmpl/gstutils.sgml: * gst/gstquery.c: * gst/gstquery.h: inlined and extended docs
This commit is contained in:
Stefan Kost
parent
d7b4691c3b
commit
ba327dcf92
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@ -1,3 +1,12 @@
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2005-08-30 Stefan Kost <ensonic@users.sf.net>
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* docs/gst/tmpl/.cvsignore:
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* docs/gst/tmpl/gstquery.sgml:
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* docs/gst/tmpl/gstutils.sgml:
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* gst/gstquery.c:
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* gst/gstquery.h:
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inlined and extended docs
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2005-08-30 Stefan Kost <ensonic@users.sf.net>
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* check/gst-libs/controller.c: (GST_START_TEST),
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1
docs/gst/tmpl/.gitignore
vendored
1
docs/gst/tmpl/.gitignore
vendored
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@ -21,5 +21,6 @@ gstmessage.sgml
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gstminiobject.sgml
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gstprobe.sgml
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gstpushsrc.sgml
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gstquery.sgml
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gsttask.sgml
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gstxmlregistry.sgml
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@ -1,267 +0,0 @@
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<!-- ##### SECTION Title ##### -->
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GstQuery
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<!-- ##### SECTION Short_Description ##### -->
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Dynamically register new query types
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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GstQuery functions are used to register a new query types to the gstreamer core.
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Query types can be used to perform queries on pads and elements.
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</para>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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#GstPad, #GstElement
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</para>
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<!-- ##### SECTION Stability_Level ##### -->
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<!-- ##### STRUCT GstQuery ##### -->
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<para>
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</para>
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@mini_object:
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@type:
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@structure:
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<!-- ##### ENUM GstQueryType ##### -->
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<para>
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Standard predefined Query types
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</para>
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@GST_QUERY_NONE: invalid query type
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@GST_QUERY_POSITION: current position in stream
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@GST_QUERY_LATENCY: latency of stream
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@GST_QUERY_JITTER: current jitter of stream
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@GST_QUERY_RATE: current rate of the stream
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@GST_QUERY_SEEKING:
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@GST_QUERY_CONVERT:
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@GST_QUERY_FORMATS:
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<!-- ##### MACRO GST_QUERY_TYPE_RATE_DEN ##### -->
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<para>
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Rates are relative to this value
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</para>
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<!-- ##### STRUCT GstQueryTypeDefinition ##### -->
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<para>
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A Query Type definition
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</para>
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@value: the unique id of the Query type
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@nick: a short nick
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@description: a longer description of the query type
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<!-- ##### FUNCTION gst_query_type_register ##### -->
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<para>
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</para>
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@nick:
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@description:
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@Returns:
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<!-- ##### FUNCTION gst_query_type_get_by_nick ##### -->
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<para>
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</para>
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@nick:
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@Returns:
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<!-- ##### FUNCTION gst_query_types_contains ##### -->
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<para>
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</para>
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@types:
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@type:
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@Returns:
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<!-- ##### FUNCTION gst_query_type_get_details ##### -->
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<para>
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</para>
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@type:
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@Returns:
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<!-- # Unused Parameters # -->
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@Param1:
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<!-- ##### MACRO gst_query_copy ##### -->
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<para>
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</para>
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@msg:
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<!-- ##### FUNCTION gst_query_get_structure ##### -->
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<para>
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</para>
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@query:
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@Returns:
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<!-- ##### MACRO gst_query_make_writable ##### -->
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<para>
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</para>
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@msg:
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<!-- ##### FUNCTION gst_query_new_application ##### -->
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<para>
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</para>
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@type:
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@structure:
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@Returns:
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<!-- ##### FUNCTION gst_query_new_convert ##### -->
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<para>
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</para>
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@src_fmt:
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@value:
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@dest_fmt:
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@Returns:
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<!-- ##### FUNCTION gst_query_new_position ##### -->
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<para>
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</para>
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@format:
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@Returns:
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<!-- ##### FUNCTION gst_query_parse_convert ##### -->
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<para>
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</para>
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@query:
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@src_format:
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@src_value:
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@dest_format:
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@dest_value:
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<!-- ##### FUNCTION gst_query_parse_position ##### -->
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<para>
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</para>
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@query:
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@format:
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@cur:
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@end:
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<!-- ##### FUNCTION gst_query_parse_seeking_query ##### -->
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<para>
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</para>
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@query:
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@format:
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<!-- ##### FUNCTION gst_query_parse_seeking_response ##### -->
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<para>
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</para>
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@query:
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@format:
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@seekable:
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@segment_start:
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@segment_end:
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<!-- ##### MACRO gst_query_ref ##### -->
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<para>
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</para>
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@msg:
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<!-- ##### FUNCTION gst_query_set_convert ##### -->
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<para>
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</para>
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@query:
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@src_format:
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@src_value:
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@dest_format:
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@dest_value:
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<!-- ##### FUNCTION gst_query_set_formats ##### -->
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<para>
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</para>
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@query:
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@n_formats:
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@Varargs:
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<!-- ##### FUNCTION gst_query_set_position ##### -->
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<para>
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</para>
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@query:
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@format:
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@cur:
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@end:
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<!-- ##### FUNCTION gst_query_set_seeking ##### -->
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<para>
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</para>
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@query:
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@format:
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@seekable:
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@segment_start:
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@segment_end:
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<!-- ##### FUNCTION gst_query_type_iterate_definitions ##### -->
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<para>
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</para>
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@Returns:
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<!-- ##### MACRO gst_query_unref ##### -->
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<para>
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</para>
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@msg:
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@ -55,6 +55,8 @@ various utility functions
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parent_type_as_macro:
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@\
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parent_type_as_macro:
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@\
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parent_type_as_macro:
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@\
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parent_type_as_macro:
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@interface_type:
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@ -89,6 +91,8 @@ various utility functions
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interface_as_function:
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@\
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interface_as_function:
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@\
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interface_as_function:
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@\
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interface_as_function:
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@ -20,7 +20,16 @@
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:gstquery
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* @short_description: Dynamically register new query types and parse results
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* @see_also: #GstPad, #GstElement
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*
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* GstQuery functions are used to register a new query types to the gstreamer core.
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* Query types can be used to perform queries on pads and elements.
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*
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* Query answer can be parsed using gst_query_parse_xxx() helpers.
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*/
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#include <string.h>
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#include "gst_private.h"
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@ -316,6 +325,15 @@ gst_query_new (GstQueryType type, GstStructure * structure)
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return query;
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}
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/**
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* gst_query_new_position:
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* @format: the default #GstFormat for the new query
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*
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* Constructs a new query stream position query object. Use gst_query_unref()
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* when done with it.
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*
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* Returns: A new #GstQuery
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*/
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GstQuery *
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gst_query_new_position (GstFormat format)
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{
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@ -331,6 +349,15 @@ gst_query_new_position (GstFormat format)
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return query;
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}
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/**
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* gst_query_set_position:
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* @query: the query to fill in
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* @format: the requested #GstFormat
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* @cur: the current position
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* @end: the end position
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*
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* Answer a position query by setting the requested values.
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*/
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void
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gst_query_set_position (GstQuery * query, GstFormat format,
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gint64 cur, gint64 end)
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@ -345,6 +372,16 @@ gst_query_set_position (GstQuery * query, GstFormat format,
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"cur", G_TYPE_INT64, cur, "end", G_TYPE_INT64, end, NULL);
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}
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/**
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* gst_query_parse_position:
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* @query: the query to fill in
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* @format: the requested #GstFormat or NULL for the default (used when creating
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* the query)
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* @cur: the storage for the current position
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* @end: the storage for the end position
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*
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* Parse a position query answer.
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*/
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void
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gst_query_parse_position (GstQuery * query, GstFormat * format,
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gint64 * cur, gint64 * end)
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G_BEGIN_DECLS
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/**
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* GstQueryType:
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* @GST_QUERY_NONE: invalid query type
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* @GST_QUERY_POSITION: current/end position in stream
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* @GST_QUERY_LATENCY: latency of stream
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* @GST_QUERY_JITTER: current jitter of stream
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* @GST_QUERY_RATE: current rate of the stream
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* @GST_QUERY_SEEKING: seeking start/stop positions
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* @GST_QUERY_CONVERT: convert values
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* @GST_QUERY_FORMATS: query supported formats for convert
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*
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* Standard predefined Query types
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*/
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typedef enum {
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GST_QUERY_NONE = 0,
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GST_QUERY_POSITION, /* get current/end position */
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GST_QUERY_LATENCY, /* get current latency */
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GST_QUERY_POSITION,
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GST_QUERY_LATENCY,
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GST_QUERY_JITTER, /* not in draft-query, necessary? */
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GST_QUERY_RATE, /* get current playback rate */
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GST_QUERY_SEEKING, /* get seeking start/stop positions */
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GST_QUERY_CONVERT, /* convert values */
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GST_QUERY_FORMATS /* query supported formats for convert */
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GST_QUERY_RATE,
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GST_QUERY_SEEKING,
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GST_QUERY_CONVERT,
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GST_QUERY_FORMATS
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} GstQueryType;
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/* rate is relative to 1000000 */
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/**
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* GST_QUERY_TYPE_RATE_DEN:
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*
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* Rates are relative to this value
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*/
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#define GST_QUERY_TYPE_RATE_DEN G_GINT64_CONSTANT (1000000)
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typedef struct _GstQueryTypeDefinition GstQueryTypeDefinition;
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typedef struct _GstQuery GstQuery;
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typedef struct _GstQueryClass GstQueryClass;
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/**
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* GstQueryTypeDefinition:
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* @value: the unique id of the Query type
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* @nick: a short nick
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* @description: a longer description of the query type
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*
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* A Query Type definition
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*/
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struct _GstQueryTypeDefinition
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{
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GstQueryType value;
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@ -101,6 +126,7 @@ gboolean gst_query_types_contains (const GstQueryType *types,
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GstQueryType type);
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/* query for query details */
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G_CONST_RETURN GstQueryTypeDefinition*
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gst_query_type_get_details (GstQueryType type);
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GstIterator* gst_query_type_iterate_definitions (void);
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