Patent ID: 11895336
Assignee: QUALCOMM INCORPORATED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. An apparatus configured to process video data, the apparatus comprising:
means for receiving a picture that includes a plurality of subpictures; and
means for decoding a quality metrics supplemental enhancement information (SEI) message associated with the plurality of subpictures of the picture, the quality metrics SEI message including:
a first syntax element indicative of a number of subpictures within the plurality of subpictures,
a quality metric type syntax element, associated with at least one subpicture of the plurality of subpictures, set to a first value among a plurality of values that respectively indicate a plurality of types of quality metrics, where the first value is set to 0, and
a quality metric syntax element specifying a second value;

means for determining that the quality metric type syntax element is set to 0;
based on the determination that the quality metric type syntax element is set to 0, means for determining to interpret the second value specified by the quality metric syntax element as a value indicative of a peak signal-to-noise ratio (PSNR) associated with the at least one subpicture; and
means for deriving, based on the second value specified by the quality metric syntax element, a derived PSNR associated with the at least one subpicture.