What's interesting about this site is that they've assembled pointers 
to lots of digital video code, not just AVI.   A quote from the FAQ 
index: http://www.jmcgowan.com/avi.html


     SOURCE CODE
             - Where to get C source code for an AVI Player Including 
Many Codecs
             - Where to get C source code for a JPEG Encoder or Decoder
             - Where to get C source code for an H.263 Video Encoder or Decoder
             - Where to get C source code for an MPEG Video Encoder or Decoder
             - Where to get C/C++ Source Code for Wavelet Image Compression

 

>Of course, AVI is not terribly useful for compression ....
>
>Cheers,
>
>Alan
>
>----
>
>At 1:26 PM -0400 8/14/00, Mark Guzdial wrote:
>>This was really neat!  Their argument that "parsing AVI is easy" 
>>got me wondering, and led me to a really interesting page on AVI 
>>formats and a variety of code sources for JPEG, MPEG, and other 
>>formats: http://www.jmcgowan.com/avi.html
>>
>>Mark
>>
>>>http://heroinewarrior.com/
>>>
>>>They have made Quicktime for Linux, libmpeg2-1.1.5, and some other stuff.
>>>Source code under GPL mostly. Some wizard should be able to make a 
>>>mpeg plugin
>>>in a few seconds...;-)
>>>
>>>A more useful plugin to both encode and decode, and use the free 
>>>codecs is a bigger job
>>>but most of is there. Wish I knew C...
>>>
>>>Karl
>>>
>>>
>>>Alan Kay wrote:
>>>>
>>>>Mark --
>>>>
>>>>This is an important issue, but it goes deeper than Quicktime (which
>>>>I don't believe yet runs e.g. on Linux,is huge, etc., etc.).
>>>>
>>>>We need a public domain high compression movie player that we can use
>>>>as a Squeak plugin on all platforms, and perhaps that is happy with
>>>>some current standard like MPEG2.
>>>>
>>>>Someone must have done one of these in Open Source Land somewhere (?????)
>>>>
>>>>Cheers,
>>>>
>>>>Alan
>>>>
>>>>-------
>>>>
>>>>At 9:58 AM -0400 8/14/00, Mark Guzdial wrote:
>>>> >I'm advising a colleague on a programming language to use for
>>>> >developing a video-based case library for teachers on how to teach
>>>> >using design activities.  He's leaning toward SuperCard or Java, and
>>>> >I'm encouraging him to consider Python as well.  But, of course,
>>>> >what I'd really like to recommend is Squeak -- but video with Squeak
>>>> >is fairly difficult.  There are SqueakMovies, but the conversion
>>>> >between his videos in QuickTime and SqueakMovies will be ardurous.
>>>> >
>>>> >What's the latest on QuickTime in Squeak?  I've seen Jim Benson's
>>>> >FFI QuickTime for Windows, and it's gorgeous.  There was talk for
>>>> >awhile around here about MPEG for Squeak.  What's the latest on any
>>>> >form of video for Squeak?
>>>> >
>>>> >Thanks!
>>>> >  Mark
>>>> >--------------------------
>>>> >Mark Guzdial : Georgia Tech : College of Computing : Atlanta, 
>>>>GA 30332-0280
>>>> >Associate Professor - Learning Sciences & Technologies.
>>>> >Collaborative Software Lab - http://coweb.cc.gatech.edu/csl/
>>>> >(404) 894-5618 : Fax (404) 894-0673 : guzdial at cc.gatech.edu
>>>> >http://www.cc.gatech.edu/gvu/people/Faculty/Mark.Guzdial.html
>>
>>--------------------------
>>Mark Guzdial : Georgia Tech : College of Computing : Atlanta, GA 30332-0280
>>Associate Professor - Learning Sciences & Technologies.
>>Collaborative Software Lab - http://coweb.cc.gatech.edu/csl/
>>(404) 894-5618 : Fax (404) 894-0673 : guzdial at cc.gatech.edu
>>http://www.cc.gatech.edu/gvu/people/Faculty/Mark.Guzdial.html

--------------------------
Mark Guzdial : Georgia Tech : College of Computing : Atlanta, GA 30332-0280
Associate Professor - Learning Sciences & Technologies.
Collaborative Software Lab - http://coweb.cc.gatech.edu/csl/
(404) 894-5618 : Fax (404) 894-0673 : guzdial at cc.gatech.edu
http://www.cc.gatech.edu/gvu/people/Faculty/Mark.Guzdial.html