Media data atom types

Overview

QuickTime uses atoms of different types to store different types of media data—video media atoms for video data, sound media atoms for audio data, and so on. Review the following topics to understand the fundamentals of how QuickTime uses atoms for storage of different types of media data.

Topics

Video and sound

• Video media
• Sound media
• Music media
• MPEG-1 media
• Movie media
• Defining media data layouts

Time-specific media

• Timed metadata media
• Timecode media

Text, captions, and subtitles

• Text media
• Closed captioning media
• Subtitle media

Track features

• Modifier tracks
• Creating movies with modifier tracks
• Track references
• Chapter lists
• Streaming media

Hint media

• Hint media
• Finding an original media track from a hint track
• RTP hint tracks
• Hint sample data format
• Packetization hint sample data