bug fix: configure input port buffer size

In video decoders, size of a single input frame (elementary-stream)
is dependent on width, height, color format, profile settings, ...
Most of this information is part of sps, pps and requires parsing.
But as the max size of the stream is known ahead, use it to configure
the input buffer size requirements

Bug: 63875287
Bug: 63796949

Change-Id: Ib760c4f55b094260a0abd120f852dcf1899df4e0