Using Sample Atoms

QuickTime Movie File Format Specification, May 1996

Using Sample Atoms

This section presents examples using the atoms just described. These examples are intended to help you understand the relationships between these atoms. The first section, "Finding a Sample," describes the steps that the video media handler uses to find the sample that contains the media data for a particular time in a media. The second section, "Finding a Key Frame," describes the steps that the video media handler uses to find an appropriate key frame for a specific time in a movie.

Finding a Sample

Finding a Key Frame