In {HEAD ~ decoding mode}, {TAIL ~ VPU} receives MPEG video bitstream and decompresses according to MPEG standard 
In { HEAD ~ decoding mode } , { TAIL ~ VPU } receives MPEG video bitstream and decompresses according to MPEG standard
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH