Data-Compression.org

data compression link collection

Performance of a Software MPEG Video Decoder

This paper discusses the design and development of a sofware MPEG decoder, which presumably is the one that can be found in other links to the Berkely MPEG group. Paper available in both Postcript and PDF.

http://bmrc.berkeley.edu/research/publications/1993/124/124.html

         

Posted in August 25th, 2001

Realtime MPEG Video via Software Decompression on a PA-RISC Processor

According to the abstract, this is the first paper to describe realtime decompression of an MPEG stream at 30 fps. It’s timestamped 9/98, but I believe the paper was published in 1994.

http://www.ee.princeton.edu/~rblee/HPpapers/compcon_mpeg.pdf

         

Posted in August 25th, 2001

ACT - PC Archiver Index

Jeff Gilchrist maintains the well known Archive Comparison Test site, which pits all the compressors of the world against one another. This page on that site has links to the all those archivers. Lots of links.

http://compression.ca/act-index.html

         

Posted in August 25th, 2001

ACT - Mac Archiver Index

Jeff Gilchrist maintains the well known Archive Comparison Test site, which pits all the compressors of the world against one another. This page on that site has links to the all those archivers. Lots of links.

http://compression.ca/mac/act-index.html

         

Posted in August 25th, 2001

MPEG-1 Description

A short description of the MPEG-1 standard from the official site.

http://www.chiariglione.org/mpeg/standards/mpeg-1/mpeg-1.htm

         

Posted in August 25th, 2001

MPEG-2 Description

A short description of the MPEG-2 standard from the official site. Brief, but includes some nice pictures an words.

http://www.chiariglione.org/mpeg/standards/mpeg-2/mpeg-2.htm

         

Posted in August 25th, 2001

MPEG-7 Description

Published in Video

An overview of the MPEG-7 standard from the official site. There is quite a bit of detail on this page, making it a combination of a standard, FAQ, and overview.

http://www.chiariglione.org/mpeg/standards/mpeg-7/mpeg-7.htm

         

Posted in August 25th, 2001

MPEG-21 Overview

Published in Video

This page contains a description of the emerging MPEG-21 standard, which is a multimedia wrapper specification.

http://www.chiariglione.org/mpeg/standards/mpeg-21/mpeg-21.htm

         

Posted in August 25th, 2001

MPEG Achievements and Overview

If you want to know more about MPEG-1,2,4,7, and 21, this is a good starting place.

http://www.chiariglione.org/mpeg/mpeg_general.htm

         

Posted in August 25th, 2001

MPEG-X FAQs

A set of links to the FAQs maintained by the MPEG committee. This includes information on the emerging MPEG-21 standard, plus oldies like MPEG-1 and MPEG-2. MPEG-4 and MPEG-7 are represented as well.

http://www.chiariglione.org/mpeg/faq.htm

         

Posted in August 25th, 2001

WiZ 5.02

A graphical front end for Zip and UnZip. Binaries available for multiple varieties of Windows.

http://www.ctan.org/tex-archive/tools/zip/info-zip/WiZ.html

         

Posted in August 23rd, 2001

Power Compressor

Image Power makes this product which compresses documents using JBIG, GIF, and JPEG2000 encoders. This product is supposed to help you with web publishing, archiving, and image management.

http://www.imagepower.com/products/desktop/power_compressor.html

         

Posted in August 23rd, 2001

Power SDK

Image Power makes a C++ SDK that performs both document and image compression. This supports JBIG2, MRC (Mixed Raster Content), and plugins for web browsers.

http://www.imagepower.com/products/desktop/power_sdk.html

         

Posted in August 23rd, 2001

Recent Info-ZIP News and Ancient Info-ZIP History

Info-ZIP News, History and Other Stuff

http://www.ctan.org/tex-archive/tools/zip/info-zip/Info-ZIP2.html

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Posted in August 23rd, 2001

Zip 2.3

The InfoZip project’s page for Zip, their free archive program that creates PKZip compatible archives

http://www.ctan.org/tex-archive/tools/zip/info-zip/Zip.html

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Posted in August 23rd, 2001

An Explanation of the Deflate Algorithm

This includes a brief discussion of Huffman coding, then of LZ77 compression, and finally some of the coding oddities that are found in deflate.

http://www.ctan.org/tex-archive/tools/zip/info-zip/zlib/feldspar.html

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Posted in August 23rd, 2001

Deflate technical spec in PS format

The deflate technical specification in US size PostScript, by L. Peter Deutsch. This document is the basis for RFC 1951.

http://www.gzip.org/zlib/rfc1951.ps

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Posted in August 23rd, 2001

DEFLATE Compressed Data Format Specification version 1.3

The deflate technical specification in HTML, by L. Peter Deutsch. This document is the basis for RFC 1951. There are many links to this document stored in various places, but this database will only have links to the versions at www.cdrom.com and the IETF pages.

http://www.gzip.org/zlib/rfc-deflate.html

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Posted in August 23rd, 2001

GZIP file format specification version 4.3

The gzip technical specification in HTML, by L. Peter Deutsch. This document is the basis for RFC 1952. Includes sample CRC code

http://www.gzip.org/zlib/rfc-gzip.html

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Posted in August 23rd, 2001

ZLIB Compressed Data Format Specification version 3.3

The zlib technical specification in HTML, by L. Peter Deutsch and Jean-Loup Gailly.

http://www.gzip.org/zlib/rfc-zlib.html

         

Posted in August 23rd, 2001

Zlib documentation page

The documentation page for zlib, the free software that implement’s PKWare’s deflate algorithm. Contains links to the zlib specification, and the gzip specification. Links to versions all over the world, in HTML, ASCII, or PostScript.

http://www.gzip.org/zlib/zlib_docs.html

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Posted in August 23rd, 2001

Zlib source in zip format

Published in Source Code, zlib

The current version of the zlib source.

http://www.gzip.org/zlib/zlib.zip

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Posted in August 23rd, 2001

Info-ZIP

Info-ZIP is a diverse, Internet-based workgroup of about 20 primary authors and over one hundred beta-testers, formed in 1990 as a mailing list hosted by Keith Petersen on the original SimTel site at the White Sands Missile Range in New Mexico.

Info-ZIP’s purpose is to provide free, portable, high-quality versions of the Zip and UnZip compressor-archiver utilities that are compatible with the DOS-based PKZIP by PKWARE, Inc.

http://www.ctan.org/tex-archive/tools/zip/info-zip/Info-ZIP.html

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Posted in August 22nd, 2001

RFC 1950 - the zlib technical spec

The zlib technical specification in US size PostScript, by L. Peter Deutsch and Jean-Loup Gailly. This document is the basis for RFC 1950.

http://www.gzip.org/zlib/rfc1950.ps

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Posted in August 22nd, 2001

ZLIB Compressed Data Format Specification version 3.3

The zlib technical specification in ASCII, by L. Peter Deutsch and Jean-Loup Gailly. This document is the basis for RFC 1950.

http://www.gzip.org/zlib/rfc1950.txt

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Posted in August 22nd, 2001

IMAGELIB from Colosseum Builders, Inc - V 4.0

Due to the overwhelming number of requests for JPEG code that works with Borland C++Builder we have put out an Alpha version of the Colosseum Builders’ Image Library for C++. The latest version includes encoders and decoders for JPEG, GIF, Windows BMP, XBM, and PNG. It also includes an interface to VCL so that these image formats can be used at design-time with C++Builder. The current version now works with MSVC++.

http://www.colosseumbuilders.com/Source/imagelib400.zip

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Posted in August 19th, 2001

Clipstream 2.0

Clipstream is a product that compresses audio to either 20Kbps or 32 Kpbs, depending on the speed of the connection. A java applet on a web page is used to decode the stream and play it over the sound card of the target computer. The web site has demos of several types of sound. Update: Clipstream has java applets for both video and audio!

http://www.clipstream.com/

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Posted in August 19th, 2001

Clipstream Audio

Clipstream makes a java applet that gives web browsers the ability to play streaming audio without any special plugins or apps.

http://www.clipstream.com/products/audio/

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Posted in August 19th, 2001

An Introduction to Wavelets

What appears to be a fairly comprehensive article on Wavelets.

http://www.amara.com/IEEEwave/IEEEwavelet.html

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Posted in August 19th, 2001

Gunzip.c64

Published in Source Code, Zip

Source to a zip decompressor that runs on the Commodore 64! Better yet, this decompressor has source for more than the typical deflate method - it includes the old-school PKWare algorithms: Store, Reduce, Shrink, Implode.

http://www.cs.tut.fi/~albert/Dev/gunzip/

         

Posted in August 16th, 2001