JMF Control
The JMF API has defined a number of interfaces meant
for controlling  attributes of various JMF objects.
Example ...
Ø GainControl : enables adjustment of audio signal gain.
Ø TrackControl : This interface is provided by the Processor
to query, and manipulate the data of individual media tracks.
Ø BitRateControl  : used for specifying parameters to control
media bit rate.
Ø BufferControl : used to control the size and threshold of
buffers maintained by certain JMF objects.
Ø CachingControl : an interface supported by Players that are
capable of reporting download progress.
Ø FormatControl : This interfaces is implemented by objects
which supports  setting of media format.