Data Information Atoms

QuickTime Movie File Format Specification, May 1996

Data Information Atoms

The handler reference atom (described in "Handler Reference Atoms," beginning on [link] ) contains information specifying the data handler component that provides access to the media data. The data handler component uses the data information atom to interpret the media's data. Data information atoms have an atom type value of 'dinf' .

Figure 0-27 shows the layout of a data information atom.

Figure 27 The layout of a data information atom

The data information atom contains the following data elements.

Size: A 32-bit integer that specifies the number of bytes in this data information atom.
Type: A 32-bit integer that identifies the atom type; this field must be set to ' dinf' .
Data references: A data reference atom, described in the next section, contains the data references.

Data Reference Atoms