gstreamer/docs/libs/tmpl/gstcontrol.sgml

<!-- ##### SECTION Title ##### -->
gstcontrol

<!-- ##### SECTION Short_Description ##### -->
Dynamic parameter functionality

<!-- ##### SECTION Long_Description ##### -->
<para>
This library provides a Manager that maintains a list of dynamically
controlable parameters for a GstElement.
Just think of a volume slider in a mixer.
</para>

<para>
To use this library one needs to add some code to initialize it.
<example>
<title>Adding the control library to a project</title>
<programlisting>
...
&hash;include &lt;gst/gst.h&gt;
&hash;include &lt;gst/control/control.h&gt;
...
gst_init(&amp;argc,&amp;argv);
gst_control_init(&amp;argc,&amp;argv);
...
</programlisting>
</example>
The next step is to get hold of the GstDParamManager instance of a GstElement.
</para>

<!-- ##### SECTION See_Also ##### -->
<para>

</para>

<!-- ##### FUNCTION gst_control_init ##### -->
<para>

</para>

@argc: 
@argv: 


<!-- ##### FUNCTION gst_dpman_new ##### -->
<para>

</para>

@name: 
@parent: 
@Returns: 


<!-- ##### FUNCTION gst_dpman_add_required_dparam_callback ##### -->
<para>

</para>

@dpman: 
@param_spec: 
@unit_name: 
@update_func: 
@update_data: 
@Returns: 


<!-- ##### FUNCTION gst_dpman_add_required_dparam_direct ##### -->
<para>

</para>

@dpman: 
@param_spec: 
@unit_name: 
@update_data: 
@Returns: 


<!-- ##### FUNCTION gst_dpman_add_required_dparam_array ##### -->
<para>

</para>

@dpman: 
@param_spec: 
@unit_name: 
@update_data: 
@Returns: 


<!-- ##### FUNCTION gst_dpman_remove_required_dparam ##### -->
<para>

</para>

@dpman: 
@dparam_name: 


<!-- ##### FUNCTION gst_dpman_attach_dparam ##### -->
<para>

</para>

@dpman: 
@dparam_name: 
@dparam: 
@Returns: 


<!-- ##### FUNCTION gst_dpman_detach_dparam ##### -->
<para>

</para>

@dpman: 
@dparam_name: 


<!-- ##### FUNCTION gst_dpman_get_dparam ##### -->
<para>

</para>

@dpman: 
@dparam_name: 
@Returns: 
<!-- # Unused Parameters # -->
@name: 


<!-- ##### FUNCTION gst_dpman_get_dparam_type ##### -->
<para>

</para>

@dpman: 
@dparam_name: 
@Returns: 
<!-- # Unused Parameters # -->
@name: 


<!-- ##### FUNCTION gst_dpman_list_dparam_specs ##### -->
<para>

</para>

@dpman: 
@Returns: 


<!-- ##### FUNCTION gst_dpman_get_param_spec ##### -->
<para>

</para>

@dpman: 
@dparam_name: 
@Returns: 


<!-- ##### FUNCTION gst_dpman_set_rate ##### -->
<para>

</para>

@dpman: 
@rate: 


<!-- ##### FUNCTION gst_dpman_register_mode ##### -->
<para>

</para>

@klass: 
@modename: 
@preprocessfunc: 
@processfunc: 
@setupfunc: 
@teardownfunc: 


<!-- ##### FUNCTION gst_dpman_set_mode ##### -->
<para>

</para>

@dpman: 
@modename: 
@Returns: 


<!-- ##### FUNCTION gst_dpman_set_parent ##### -->
<para>

</para>

@dpman: 
@parent: 


<!-- ##### FUNCTION gst_dpman_get_manager ##### -->
<para>

</para>

@parent: 
@Returns: 


<!-- ##### FUNCTION gst_dpman_bypass_dparam ##### -->
<para>

</para>

@dpman: 
@dparam_name: 


<!-- ##### FUNCTION gst_dparam_new ##### -->
<para>

</para>

@type: 
@Returns: 


<!-- ##### FUNCTION gst_dparam_attach ##### -->
<para>

</para>

@dparam: 
@manager: 
@param_spec: 
@unit_name: 


<!-- ##### FUNCTION gst_dparam_detach ##### -->
<para>

</para>

@dparam: 


<!-- ##### FUNCTION gst_dparam_do_update_default ##### -->
<para>

</para>

@dparam: 
@timestamp: 
@value: 
@update_info: 


<!-- ##### FUNCTION gst_dpsmooth_new ##### -->
<para>

</para>

@type: 
@Returns: