Track atom ('trak')

Overview

Track atoms have an atom type value of 'trak'. The track atom requires a track header atom ('tkhd') and a media atom ('mdia'). Other child atoms are optional, and may include a track clipping atom ('clip'), a track matte atom ('matt'), an edit atom ('edts'), a track reference atom ('tref'), a track load settings atom ('load'), a track input map atom ('imap'), and a user data atom ('udta').

The layout of a track atom is as follows.

Topics

Data fields

• Size
• Type
• Track profile atom
• Track header atom
• Track aperture mode dimensions atom
• Clipping atom
• Track matte atom
• Edit atom
• Track reference atom
• Track exclude from autoselection atom
• Track load settings atom
• Track input map atom
• Media atom
• User-defined data atom

See Also

Describing tracks

• Track header atom ('tkhd')
• Track exclude from autoselection atom ('txas')
• Track aperture mode dimension atoms
• Clipping atom ('clip')
• Clipping region atom ('crgn')
• Track matte atom ('matt')
• Compressed matte atom ('kmat')
• Edit atom ('edts')
• Edit list atom ('elst')
• Playing with edit lists
• Track load settings atom ('load')
• Track reference atoms
• Track input map atoms