Track header atom ('tkhd')
An atom that specifies the characteristics of a single track within a movie.
Overview
The track header atom specifies the characteristics of a single track within a movie. A track header atom contains a size field that specifies the number of bytes and a type field that indicates the format of the data (defined by the atom type 'tkhd').
The layout of a track header atom is as follows.
Data field | Bytes |
|---|---|
4 | |
4 | |
1 | |
3 | |
4 | |
4 | |
4 | |
4 | |
4 | |
8 | |
2 | |
2 | |
2 | |
2 | |
36 | |
4 | |
4 |
The track header atom contains the track characteristics for the track, including temporal, spatial, and volume information.