Title :
Bit stream processor for object based MPEG-4 profiles
Author :
Jacob, Kilian A. ; Hormigo, Javier
Author_Institution :
Inst. for Integrated Circuits, Munich Univ. of Technol., Germany
Abstract :
We present the hardware/software architecture of an application specific processor for real-time bit stream decoding of MPEG-4 object based profiles. Inclusion of complete motion vector and shape decoding enables efficient pipelining between the bit stream processor and the remaining parts of the MPEG decoder. Through special extensions to the MIPS instruction and register set, the performance was increased by about 90% while only augmenting the gate count from 25,000 to 40,000.
Keywords :
application specific integrated circuits; decoding; digital signal processing chips; hardware description languages; hardware-software codesign; integrated circuit design; pipeline processing; video coding; MPEG-4 profiles; VHDL implementation; application specific processor; bit stream decoding; hardware/software architecture; motion vector decoding; object based profiles; pipelining; real time decoding; shape decoding; video coding standards; Computer aided engineering; Computer architecture; Decoding; Hardware; Jacobian matrices; Layout; MPEG 4 Standard; Shape; Streaming media; Testing;
Conference_Titel :
Signals, Systems and Computers, 2001. Conference Record of the Thirty-Fifth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7147-X
DOI :
10.1109/ACSSC.2001.987689
