Using the Sprite Media Handler

The sprite media handler provides functions that allow an application to create and manipulate a sprite animation as a track in a QuickTime movie.

The following sections are illustrated with code from the sample program MakeSpriteMovie.c , which shows how to create a QuickTime sprite track. The sample code creates a 640 by 480 pixel movie with one sprite track. The sprite track can have either a static background picture sprite or a solid color background. The sprite track has three other sprites whose properties change over time. The sprite track's media contains one key frame sample followed by many override samples. The key frame sample contains all of the images used by the sprites. The override samples contain the overrides of the locations, image indices, and layers needed to modify the sprites.

"Defining a Key Frame Sample" discusses the tasks you must perform to create a key frame sample and add sprites and sprite image data to it
"Defining Override Samples" describes how to create override samples and add them to the sprite track
"Setting Properties of the Sprite Track" discusses how to set global characteristics of the sprite track
"Getting Sprite Data From a Modifier Track" describes how to replace a sprite's image data with a modifier track

Using the Sprite Media Handler

Defining a Key Frame Sample

Defining Override Samples

Setting Properties of the Sprite Track

Getting Sprite Data From a Modifier Track