Software-based MPEG-2 encoding system with scalable and multithreaded architecture

Ishfaq Ahmad; Dick-Kwong Yeung; Weiguo Zheng; Shehzad Mehmood

doi:10.1117/12.434875

27 July 2001 Software-based MPEG-2 encoding system with scalable and multithreaded architecture

Ishfaq Ahmad, Dick-Kwong Yeung, Weiguo Zheng, Shehzad Mehmood

Proceedings Volume 4528, Commercial Applications for High-Performance Computing; (2001) https://doi.org/10.1117/12.434875
Event: ITCom 2001: International Symposium on the Convergence of IT and Communications, 2001, Denver, CO, United States

Abstract

MPEG-2 video encoders are now available in a variety of forms using both hardware and software based approaches. The software-based approach potentially offers a better picture quality but is computationally quite intensive. MPEG-2 video encoding can be fast processed using parallelism. A number of approaches using parallel machines or networks of workstations have been reported. While these approaches promise good concepts they do not offer commercial solutions due to factors such as cost, size, etc. In this paper, we propose a new approach with the aim to build a cost-effective and a completely practical solution that is not only highly efficient but is also scalable from single-processor to multiple-processor PC. The highlights of the proposed work include an algorithm for enhancing the efficiency of motion estimation, speeding up the computation of motion estimation and DCT with Intel's SIMD (Single Instruction, Multiple Data) style MMX and SSE instruction sets within a single processor, and scheduling and allocation of a multithreading scheme on a multiple processor PC for managing I/O, synchronization, audio and video encoding, and multiplexing. The proposed multithreaded encoder exploits temporal parallelism in MPEG video sequences with small overhead. The encoder, providing a complete compression solution, achieves faster than the real-time and half of real-time encoding rates for CIF (352 x 288) and CCIR601 (720 x 576) video sequences, respectively, on multiple processor PC.

Citation Download Citation

Ishfaq Ahmad, Dick-Kwong Yeung, Weiguo Zheng, and Shehzad Mehmood "Software-based MPEG-2 encoding system with scalable and multithreaded architecture", Proc. SPIE 4528, Commercial Applications for High-Performance Computing, (27 July 2001); https://doi.org/10.1117/12.434875

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available