Handler reference atom ('hdlr')
An atom that specifies the media handler component that is to be used to interpret the media’s data.
Overview
The handler reference atom has an atom type value of 'hdlr'.
Historically, the handler reference atom was also used for data references. However, this isn’t the case anymore.
The handler atom within a media atom declares the process by which the media data in the stream may be presented, and thus, the nature of the media in a stream. For example, a video handler would handle a video track.
The layout of a handler reference atom is as follows.
Handler reference atom | Bytes |
|---|---|
4 | |
4 | |
1 | |
3 | |
4 | |
4 | |
4 | |
4 | |
4 | |
Variable |
Topics
Data fields
See Also
Describing media
Media atomMedia header atomExtended language tag atomMedia information atomsVideo media information atomVideo media information header atomSound media information atomSound media information header atomBase media information atomBase media information header atomBase media info atomData information atomData reference atom