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QuickTime Movie File Format Specification, May 1996

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Time Code Media Information Atom

The time code media also requires a media information atom. This atom contains information governing how the time code text is displayed. This media information atom is stored in a base media information atom (see "Base Media Information Atoms" for more information). The type of the time code media information atom is 'tcmi' .

The time code media information atom contains the following data elements.

Size

A 32-bit integer that specifies the number of bytes in this time code media information atom.

Type

A 32-bit integer that identifies the atom type; this field must be set to 'tcmi' .

Version

A 1-byte specification of the version of this time code media information atom.

Flags

A 3-byte space for time code media information flags. Set this field to 0.

Text font

A 16-bit integer that indicates the font to use. Set this field to 0 to use the system font. If the Font name field contains a valid name, ignore this field.

Text face

A 16-bit integer that indicates the font's style. Set this field to 0 for normal text. You can enable other style options by using one or more of the following bit masks:

0x0001

Bold

0x0002

Italic

0x0004

Underline

0x0008

Outline

0x0010

Shadow

0x0020

Condense

0x0040

Extend

Text size

A 16-bit integer that specifies the point size of the time code text.

Text color

A 48-bit RGB color value for the time code text.

Background color

A 48-bit RGB background color for the time code text.

Font name

A Pascal string specifying the name of the time code text's font.

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