Output switching for encoded content streams
US10693642B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2017 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Nov 5, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/2347
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods are described to enable replacement, in a packaged content stream, of a first encoded content stream with a second encoded content stream, without requiring decoding of the encoded content streams. A controller can receive a request to replace the first encoded content stream with the second encoded content stream at a specified location (e.g., a particular time). The controller can then instruct encoders associated with the respective content streams to insert a splice point frame into the respective content streams at the specified location, which splice point frame breaks inter frame dependency before and after the splice point frame. A packager can then replace the first encoded content stream with the second encoded content stream at the location of the splice point frame in the packaged content stream, without introducing errors into the packaged content stream as a result of broken inter frame dependency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.