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.\" ========================================================================
.\"
.IX Title "GStreamer::Query 3pm"
.TH GStreamer::Query 3pm "2014-08-15" "perl v5.20.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
GStreamer::Query \-  Dynamically register new query types. Provide functions to create queries, and to set and parse values in them.
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The various query types are represented as subclasses:
.IP "GStreamer::Query::Position" 4
.IX Item "GStreamer::Query::Position"
.PD 0
.IP "GStreamer::Query::Duration" 4
.IX Item "GStreamer::Query::Duration"
.IP "GStreamer::Query::Latency" 4
.IX Item "GStreamer::Query::Latency"
.IP "GStreamer::Query::Jitter" 4
.IX Item "GStreamer::Query::Jitter"
.IP "GStreamer::Query::Rate" 4
.IX Item "GStreamer::Query::Rate"
.IP "GStreamer::Query::Seeking" 4
.IX Item "GStreamer::Query::Seeking"
.IP "GStreamer::Query::Segment" 4
.IX Item "GStreamer::Query::Segment"
.IP "GStreamer::Query::Convert" 4
.IX Item "GStreamer::Query::Convert"
.IP "GStreamer::Query::Formats" 4
.IX Item "GStreamer::Query::Formats"
.PD
.PP
To create a new query, you call the constructor of the corresponding class.
.PP
To modify or retrieve the content of a query, call the corresponding mutator:
.PP
.Vb 3
\&  my $query = GStreamer::Query::Position \-> new("time");
\&  $query \-> position("time", 23);
\&  my ($format, $position) = $query \-> position;
\&
\&  my $query = GStreamer::Query::Duration \-> new("time");
\&  $query \-> duration("time", 23);
\&  my ($format, $duration) = $query \-> duration;
.Ve
.SH "METHODS"
.IX Header "METHODS"
.ie n .SS "structure = $query\->\fBget_structure\fP"
.el .SS "structure = \f(CW$query\fP\->\fBget_structure\fP"
.IX Subsection "structure = $query->get_structure"
.SH "SEE ALSO"
.IX Header "SEE ALSO"
GStreamer
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (C) 2005\-2011 by the gtk2\-perl team.
.PP
This software is licensed under the \s-1LGPL. \s0 See GStreamer for a full notice.