PVR assist information for HEVC bitstreams
US10448069B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2016 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Mar 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/423
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems for processing a video stream are disclosed. A first tier value may be assigned to each of a plurality of SHRAP pictures in a first video stream. A reference tier value may be assigned to pictures in the first video stream that may be used as reference pictures. A plurality of discard tier values may be assigned to pictures in the first video stream that may be discarded during trick mode operations and do not depend on other pictures assigned one of the plurality of discard tier values. A trick mode operation may then be performed, wherein the presentation of pictures in the first video stream is dependent upon assignment of tier values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.