data compression link collection

MPEG/ITU-T Video Standarts

MPEG is actually an acronym for the Moving Pictures Experts Group, which is responsible for a body of standards regarding digitized video. The family of standards that are grouped under the MPEG umbrella cover a wide variety of compression techniques for motion pictures. Note that the MPEG standards by necessity include compression techinques for audio. Some of these techniques are categorized separately in the MP3 topic.

Overview of the MPEG-4 Standard

MPEG-4 Overview - (V.18 – Singapore Version). ISO/IEC JTC1/SC29/WG11 N4030,
March 2001.

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Posted in July 6th, 2007

Overview of MPEG-2 Test Model 5

This document contains modified chapters from the original (now outdated) Test Model 5 document that pertain to MPEG-2 Video Main Profile.


Posted in July 2nd, 2007

MPEG-4 Video Verification Model version 18.0

ISO/IEC recommendation MPEG-4 Visual (JTC1/SC29/WG11 N3908). Approved January 2001.

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Posted in July 2nd, 2007

H.261 : Video codec for audiovisual services at p x 64 kbit/s

ITU-T recommendation H.261. Approved in March 1993.

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Posted in July 2nd, 2007

H.263 : Video coding for low bit rate communication

ITU-T recommendation H.263. Approved in January 2005.

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Posted in July 2nd, 2007

H.264 : Advanced video coding for generic audiovisual services

ITU-T recommendation H.264. Approved in March 2005.

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Posted in July 2nd, 2007

The H.264/AVC Advanced Video Coding Standard: Overview and Introduction to the Fidelity Range Extensions

by Gary J. Sullivan, Pankaj Topiwala, and Ajay Luthra. Overview of H.264/AVC standart.

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Posted in July 2nd, 2007

x264 - a free h264/avc encoder

x264 is a free library for encoding H264/AVC video streams. It is released under the terms of the GPL license.

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Posted in July 2nd, 2007


Xine is a free gpl-licensed video player for unix-like systems. It plays mpeg-2 and mpeg-1 system (audio + video multiplexed) streams,
mpeg elementary streams (audio/video only, e.g. mp3 files) and
AVI files (using win32 codec dlls). Xine plays the video and audio data of the stream and synchronizes the playback of both. Depending on the properties of the stream, playback will need more or less processor power, full frame rate for mpeg-2 has been seen on a 400 MHz P II system.

Xine is on 1.1.7 as of June, 2007.

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Posted in June 30th, 2007

WinMPG Video Convert

This is another Swiss-Army Knife converter, letting you move back and forth between AVI, MPEG-1, MPEG-2, DivX, and SVCD formats.

Version 6.7 is shipping as of June, 2007.

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Posted in June 30th, 2007

VLC - the cross-platform media player

VLC is an Open Source multimedia player that supports your usual mix of audio and video formats. Support is currently included for MPEG-1, -2, -4, h.264, mp3, ogg and more. The site includes precompiled binaries for a really nice range of platforms, including Windows, Mac OS X, varios Linux flavors, and even BeOS!

Version 0.8.6 of this player is shipping as of June, 2007.

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Posted in June 30th, 2007

Gspot Codec Information Appliance

GSpot identifies presence or absence of “B-VOP”, “Qpel”, and “GMC”, thus allowing the user to determine if a DivX5 file is compatible with KISS and other popular hardware DivX players. Provides information about MPEG1 or MPEG2 video and/or MPEG1 or MPEG2 audio either as “elementary” streams or multiplexed into an MPEG1 “system stream” or an MPEG2 “program stream”. Limited support for MPEG4 video when contained in an AVI stream, such as DivX5.

Version 2.7a is shipping as of February, 2007.

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Posted in June 30th, 2007


The MPEG4IP project provides an MPEG and IETF standards-based system for encoding, streaming, and playing MPEG-4 encoded audio and video.

Version 1.5 is shipping as of November, 2006.


Posted in June 29th, 2007


This is the current home for the DivX encoder and decoder. DivX ships in three different versions which offer varying levels of features for varying prices (including free.) Shipping DivX Video 6.6 as of May, 2007.


Posted in June 29th, 2007 - Home of the XviD Codec

This project is developing an open source MPEG-4 codec. The code is currently ported to Solaris, Win32, and Linux.

Version 1.1.3 is shipping in June, 2007.


Posted in June 29th, 2007

MainConcept H.264 SDK

This SDK decodes and encodes H.264 AVC (Advanced Video Coding) frames, making it easy to add support for this exciting new format to your applications. The MainConcept H.264 Codec will offer ultra-high quality encoding to and decoding from H.264 material at exceptional speeds in all profiles and levels supported by the standard.


Posted in June 29th, 2007


A video conferencing project for Windows PCs using an H.263 video codec.


Posted in July 4th, 2004

The MPEG home page

An impressive set of links to papers, schedules, articles, and contacts for MPEG. Clearly the place to go for information relating to the standardization process.

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Posted in May 15th, 2004

An analyzer for MPEG 2 Program Stream files

This Code Project article describes a program that breaks down and analyzes MPEG-2 steams.


Posted in April 25th, 2004

TML Software Coordination

This looks like the page that contains the latest reference software used by the Joint Video Team as part of the H.264 standardization effort.


Posted in April 21st, 2004

The OpenH323 Project

This open source project aims to create a free H.323 stack. The project was started as a reaction to the high cost of commercial implementations of audio and video compression code implementing the various components of H.323. Roger H. adds There are now several useful applications which use the library
including OpenMCU (a reliable multi person conference server)
and GnomeMeeting (a GTK/Gnome GUI client for Linux/BSD Unix

Version 1.13.13 of OpenH323 shipped in Marh, 2004.

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Posted in March 14th, 2004

The MPEG Video Standards – from 1 to 21

This article in breaks down the family tree
of the MPEG standards, starting with MPEG-1 and working up to the
current and inscrutable MPEG-21. Written for the layman, this can
get you up to speed quick without burning up too many brain cells.


Posted in February 22nd, 2004

A C# MPEG1 Image Compression Class

Mike Donovan’s C# class to convert an image to an MPEG-1 I frame.


Posted in January 26th, 2004

GPL MPEG-1/2 DirectShow Decoder Filter

GPL MPEG-1/2 Decoder is a free DirectShow MPEG decoder filter. It can be used to play MPEG-1 and MPEG-2 streams in any media player based on DirectShow. In addition, it can be used as DVD decoder for unencrypted discs.


Posted in January 18th, 2004

IBM Toolkit for MPEG-4

The IBM Toolkit for MPEG-4 consists of a set of JavaTM classes and APIs with five sample applications: three cross-platform playback applications and two tools for generating MPEG-4 content for use with MPEG-4-compliant devices. These applications are as follows:

  • AVgen: a simple, easy-to-use GUI tool for creating audio/video-only content for ISMA- or 3GPP-compliant devices
  • XMTBatch: a tool for creating rich MPEG-4 content beyond simple audio and video
  • M4Play: an MPEG-4 client playback application
  • M4Applet for ISMA: a Java player applet for ISMA-compliant content
  • M4Applet for HTTP: a Java applet for MPEG-4 content played back over HTTP.


Posted in January 11th, 2004


This nice little library is designed to perform the
decoding and generation of all Program Specific
Information in MPEG-2 TS and DVB streams. The project
says that it currently supports the Program Association
Table in MPEG-2 and the Program Map Table in MPEG-2.


Posted in August 2nd, 2003

AVI to MPEG Converter

This Win32 program will convert your AVI files to various MPEG file types. There is a free version which limits conversions to MPEG-1. The commercial version supports MPEG-2 and various extensions.


Posted in July 31st, 2003

The MPEG Industry Forum

Stated objective: To further the adoption of the MPEG-4 Standard, by establishing MPEG-4 as an accepted and widely used standard among application developers, service providers, content creators and end users..

Update: This group has now changed it’s name to The MPEG Industry Forum, and have expanded their charter to include all emerging MPEG standards. For right now that includes MPEG-7 and MPEG-21, but we’re not ruling out anything in the future.


Posted in July 17th, 2003

MagicEyes MMSP-2

The MMSP-2 chip has been developed by MagicEyes for use in consumer products. It can decode MPEG-1, -2, and -4 as well as various audio codecs. While you’re asking, yes, it has an LCD controller, a Poly Wavetable sound synthesizer, and more.


Posted in April 17th, 2003

MPEG : Standards, Technology and Applications

A nice tutorial on MPEG-1 and MPEG-2 by Shanawaz Basith. Includes some links at the end.

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Posted in April 3rd, 2003