segmentIndex
segmentIndex is a data construct used to describe and locate segments within a larger data set, typically a media file or a segmented data stream. It serves as a map from segment identifiers to information about where the segment is stored and when it occurs, enabling efficient access without scanning the entire file.
In practice, a segmentIndex records attributes such as the segment number, byte offset or file range, length
Segment indexes can be stored in different ways. They may be embedded within the surrounding container or
Common use cases include adaptive media streaming, where a segmentIndex helps a player jump to a particular
Limitations include overhead from maintaining the index and potential inconsistency between the index and the actual