Real-time MPEG-1 software decoding on HP workstations

Vasudev Bhaskaran; Konstantinos Konstantinides; Ruby B. Lee

doi:10.1117/12.206385

17 April 1995 Real-time MPEG-1 software decoding on HP workstations

Vasudev Bhaskaran, Konstantinos Konstantinides, Ruby B. Lee

Proceedings Volume 2419, Digital Video Compression: Algorithms and Technologies 1995; (1995) https://doi.org/10.1117/12.206385
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1995, San Jose, CA, United States

Abstract

A MPEG1 codec that is capable of real-time playback of video and audio on HP's RISC-based workstations has been developed. Real-time playback is achieved by examining the complete MPEG1 decoding pipeline and optimizing the algorithms used for the various stages of the video and audio decompression process. For video decompression, efficient implementations are derived by examining the huffman decoder, inverse quantizer and inverse DCT as a single system. For audio decompression, by viewing the subband synthesis function in MPEG1 layer I and layer II decoding as a DCT, a fast 32-point DCT suitable for use in MPEG1 audio decompression has been developed. Besides algorithmic enhancements, in order to achieve real-time performance, minor changes to the CPU architecture and the display pipeline architecture were needed. The integration of algorithmic and architectural enhancements results in real-time playback of MPEG1 video and audio on HP's RISC based workstations.

Citation Download Citation

Vasudev Bhaskaran, Konstantinos Konstantinides, and Ruby B. Lee "Real-time MPEG-1 software decoding on HP workstations", Proc. SPIE 2419, Digital Video Compression: Algorithms and Technologies 1995, (17 April 1995); https://doi.org/10.1117/12.206385

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