baseparse: add setting segment rate .
baseparse: add setting segment rate .

The adec/vdec sinks don't get the proper play rate,
because the parse doesn't reset the segment rate.
The pipeline has to delivery the rate came from App side.

:Issues Addressed:
[SWPFTASK-1155] [DirecTV][Bugzilla] slow motion often fails

Change-Id: I257d6a221ce935994e347e096cbb193684edb5c9
Reviewed-on: https://gpro.palm.com/50821
Reviewed-by: Jeongseok Kim <0c03ab7a1b32f29697716389c3f9549845834271@lge.com>
Tested-by: Jeongseok Kim <0c03ab7a1b32f29697716389c3f9549845834271@lge.com>

justinjoy/gstreamer,justinjoy/gstreamer,justinjoy/gstreamer,justinjoy/gstreamer,justinjoy/gstreamer