VVC Decoder Configuration Records for Complete Sublayer and PTL Signaling

The decoder configuration information is segmented into multiple distinct syntax elements organized in a hierarchical structure. Each parameter (decoded picture buffer size, maximum picture output reordering, latency flags) is separated into its own syntax element, allowing independent encoding and decoding. This segmentation enables the configuration record to accommodate comprehensive parameters while maintaining structured organization and manageable complexity.

The configuration record implements local quality by providing specific syntax elements for different sublayer levels. Each sublayer can have its own PTL (Profile Tier Level) records with precisely tailored parameters. This allows the decoding control precision to be optimized locally for each sublayer's specific requirements rather than using a uniform configuration for all sublayers, thereby reducing overall signaling data while maintaining high precision where needed.

The configuration record structure incorporates preliminary actions by pre-defining byte-alignment requirements and reserved bits positions before actual data parsing occurs. The syntax elements are arranged with explicit alignment rules (e.g., 32-bit alignment) and reserved bits are allocated in advance at specific positions. This preliminary structuring ensures reliable parsing by eliminating ambiguity during decoding, while the systematic placement of alignment and reserved elements minimizes overall structural overhead.