Clipping Atoms

QuickTime Movie File Format Specification, May 1996

Clipping atoms specify the clipping regions for movies and for tracks. The clipping atom has an atom type value of 'clip' .

Figure 0-11 shows the layout of a clipping atom.

Figure 11 The layout of a clipping atom

Clipping atoms contain the following data elements.

Size: A 32-bit integer that specifies the number of bytes in this clipping atom.
Type: A 32-bit integer that identifies the atom type; this field must be set to 'clip' .
Clipping region atom: The clipping region atom; these atoms are described in the next section.