Ensuring a target average bit rate in a multiplexed environment
US10356452B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2017 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Aug 19, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/44209
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Ensuring a long-term average bitrate for channels of a statistical multiplexing meets or exceeds a specified limit. An arbitrary target average bitrate for each of a set of channels of the statistical multiplexer is received. The long-term average bit rate for each channel of the statistical multiplexer is tracked. For each allocation cycle of the statistical multiplexer, bitrates to each encoder are assigned by splitting a bit allocation pool of the statistical multiplexer into a first portion and a second portion. The first portion is allocated to maximize video quality and the second portion is allocated to minimize a gap between the set of channels that are below their arbitrary target average bitrate based on the long-term average bit rate for the set of channels. Thereafter, the bit rates allocated from the first and second portions are distributed to the encoders encoding/transcoding the set of channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.