Sent to:     alt.graphics.pixutils, comp.compression, comp.compression.research,    comp.graphics.animation, comp.graphics, comp.mail.multi-media,    comp.multimedia, comp.sources.x, comp.windows.x, comp.windows.x.announceThe Berkeley Plateau Research Group is happy to announce therelease of Version 2.0 of its software-only MPEG decoder.The player is available via anonymous ftp from toe.cs.berkeley.edu(128.32.149.117) in /pub/multimedia/mpeg/mpeg-2.0.tar.Z.You'll find many sample MPEG streams in the subdirectorymovies. Changes from v1.2 include:o Fixed green artifact bug.o Fixed sequence end code bug.o Many bug fixes.o Performance tweaks.Below is a copy of the README file:                  MPEG Video Software Decoder                  (Version 2.0; Jan 27, 1993)        Lawrence A. Rowe, Ketan Patel, and Brian Smith Computer Science Division-EECS, Univ. of Calif. at BerkeleyThis directory contains a public domain MPEG video softwaredecoder. The decoder is implemented as a library that willtake a video stream and display it in an X window on an 8, 24or 32 bit deep display.  The main routine is supplied todemonstrate the use of the decoder library. Several ditheringalgorithms are supplied based on the Floyd-Steinberg, ordereddither, and half-toning algorithms that tradeoff quality andperformance. Neither the library nor the main routine handlereal-time synchronization or audio streams.The decoder implements the standard described in the Committee Draft ISO/IEC CD 11172 dated December 6, 1991 which issometimes refered to as "Paris Format." The code has beencompiled and tested on the following platforms: HP PA-RISC (HP/UX 8.X, X11R4) (i.e., HP 9000/7XX and 9000/3XX) Sun Sparc (SunOS 4.X, X11R5) DECstation 5000 and Alpha IBM RS6000 Silicon Graphics Indigo MIPS RISC/os 4.51 Sequent Symmetry Sony NEWS and more than we can list here.If you decide to port the code to a new architecture, please letus know so that we can incorporate the changes into our sources.This directory contains everything required to build anddisplay video. We have included source code, a makefile, an Imakefile,installation instructions, and a man page. Data files canbe obtained from the same ftp site this was located in.See the INSTALL file for instructions on how tocompile and run the decoder. The data files were produced by XING. XING data does not takeadvantage of P or B frames (ie, frames with motion compensation). Performance of the player on XING data is significantly slower (half or less) than the performance when motion compensated MPEG data is decoded. We are very interested in running the software on other MPEG streams.  Please contact us if you have a stream that does not decode correctly. Also, please send us new streamsproduced by others that do utilize P and B frames.NOTE: One particular XING data file: raiders.mpg, is not a valid MPEG stream since it does not contain a sequenceheader. We have established several mailing lists for messages aboutthe decoder:mpeg-list-dist@CS.Berkeley.EDU    General information on the decoder for everyone interested    should be sent to this list.  This should become active after   11/20/92mpeg-list-request@CS.Berkeley.EDU   Requests to join or leave the list should be sent to this    address. The subject line should contain the single word    ADD or DELETE.mpeg-bugs@CS.Berkeley.EDU   Problems, questions, or patches should be sent to this address.Our future plans include porting the decoder to run on otherplatforms, integrating it into a video playback system thatsupports real-time synchronization and audio streams, andfurther experiments to improve the performance of thedecoder. Vendors or other organizations interested in supporting this research or discussing other aspects of this project should contact Larry Rowe at Rowe@CS.Berkeley.EDU.We also plan on producing an MPEG encoder. The encoder will NOT bea real time digitizer, but will be intended for offline processingof video data. ACKNOWLEDGEMENTS:	We gratefully thank Hewlett-Packard, Fujitsu, the Semiconductor	Research Corporation for financial support.	We also want to thank the following people for their help:	Tom Lane of the Independent JPEG Group provided us with		the basic inverse DCT code used by our player.		(tom_lane@g.gp.cs.cmu.edu)	Reid Judd of Sun Microsystems provided advice and assistance.	Todd Brunhoff of NVR provided advise and assistance.	Toshihiko Kawai of Sony provided advise and assistance.