AVI Files

These are some examples of AVI files. "AVI" stands for the "Audio/Visual Interleaved" format, and is a common animation format.

AVI File Characteristics:

• binary
• Color
• 2D
• Some compression
• animation (a sequence of images that comprise a movie)

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Reference:

1. Microsoft Windows Multimedia Programmer's Guide,
   Microsoft Press.
2. Microsoft Windows Multimedia Programmer's Reference,
   Microsoft Press.

Routines to read an AVI file:

• MATLAB can read an AVI file using the routine aviread.

Programs to view an AVI file:

• ImageMagick can display an AVI file.
• QuickTime or QuickTime Player can display an AVI file.
• Windows Media Player

Programs to convert an AVI file to another format:

• QuickTime or QuickTime Player can read in an AVI animation and save it as an MOV file (a QuickTime animation) or export it as an MPEG file.

Programs to convert a file to AVI format:

• BMP-AVI.EXE is a Windows PC executable that can convert a series of BMP files into an AVI animation.
• The MATLAB function movie2avi can convert a MATLAB movie into an AVI file.

Programs to write an AVI file include:

• MATHEMATICA includes an Export[filename,object] command that can save a graphics object as an AVI file.

Sample files:

• ccvt_box.avi an animation of the behavior of the generator points in a constrained centroidal Voronoi iteration, created by CCVT_BOX;
• ccvt_reflect.avi an animation of the behavior of the generator points in a constrained centroidal Voronoi iteration, created by CCVT_REFLECT;
• pod_sim.avi a demonstration of the POD model reduction method. This animation illustrates a 2D flow past a circular obstacle, using a POD basis;
• utrc_room.avi an animation of air flow through a 3D room;
• voronoi.avi a short movie of the Voronoi regions of a fixed set of points in the LP norm, as P increases;
• vortices.avi a short movie showing the creation of vortices in a superconducting material, and their formation into a (somewhat) regular lattice;

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