SegmentList

SegmentList is a data structure used to manage an ordered collection of segments, where each segment represents a contiguous interval along a common axis such as time, space, or a file offset. A segment typically includes a start coordinate, an end coordinate, and optional metadata or payload. The list maintains the order of segments and supports queries by position or coordinate.

Segments in a SegmentList are often defined by fields such as start, end, length, and an optional reference to associated data. The overall list may also store metadata about the sequence, such as total length or a clock basis when used for timelines. Segments can be queried, added, removed, or updated, and the list may provide operations to merge adjacent segments or split a segment at a given point.

Common use cases appear across multiple domains. In multimedia processing, a SegmentList can track video or audio chunks with timestamps for editing, streaming, or synchronized playback. In data transfer or file systems, segments denote byte ranges within a larger stream or file. In geographic or spatial applications, segments can represent linear features divided into smaller intervals for analysis.

Design considerations include choosing an underlying storage structure (for example, a dynamic array or a linked list), handling overlaps or gaps between segments, and supporting efficient lookups by coordinate or position. Depending on performance needs, augmentation with interval trees or similar indexing can speed up range queries. SegmentList provides a simple, extensible abstraction for managing ordered, interval-based data across various applications.