Adaptive streaming techniques
US9992499B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2014 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Mar 26, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8456
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods are presented for minimizing the suddenness and immediacy of changes to the video quality perceived by users due to bandwidth fluctuations and transitions between different bitrate streams. A method may include identifying an upcoming bitrate change in a bitstream and a nearest scene cut boundary from sync frame scene cut tags included in the bitstream. The method may include calculating whether waiting until the identified nearest scene cut boundary before changing the bitrate will cause the buffer to drop below a threshold. When the buffer is calculated to not drop below the threshold, the method may postpone the upcoming bitrate change until the identified nearest scene cut boundary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.