<!-- ##### SECTION Title ##### -->
GstClock

<!-- ##### SECTION Short_Description ##### -->
Clocking and synchronisation.

<!-- ##### SECTION Long_Description ##### -->
<para>
GstClock provides an easy way to synchonize against a global clock.
</para>

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

</para>

<!-- ##### TYPEDEF GstClockTime ##### -->
<para>

</para>


<!-- ##### TYPEDEF GstClockTimeDiff ##### -->
<para>

</para>


<!-- ##### MACRO GST_CLOCK_DIFF ##### -->
<para>
Calculate the difference between to timestamps. This does not create
and absolute difference so the result might be negative if the first 
timestamp is less than the second timestamp.
</para>

@s: first timestamp
@e: second timestamp


<!-- ##### STRUCT GstClock ##### -->
<para>

</para>

@object: 
@start_time: 
@speed: 
@active: 
@active_mutex: 
@active_cond: 

<!-- ##### FUNCTION gst_clock_reset ##### -->
<para>

</para>

@clock: 


<!-- ##### FUNCTION gst_clock_wait ##### -->
<para>

</para>

@clock: 
@time: 
@Returns: 
<!-- # Unused Parameters # -->
@obj: 


