gstcontrol dynamic parameter functionality. 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. To use this library one needs to add some code to initialize it. Adding the control library to a project ... &hash;include <gst/gst.h> &hash;include <gst/control/control.h> ... gst_init(&argc,&argv); gst_control_init(&argc,&argv); ... The next step is to get hold of the GstDParamManager instance of a GstElement. @argc: @argv: