Lossless transport stream compression from constant bitrate to variable bitrate to constant bitrate
US11323758B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2019 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Mar 22, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4305
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques for lossless transport stream compression from constant bitrate to variable bitrate to constant bitrate are described. An exemplary method includes generating elementary stream data from an encoder; receiving the generated elementary stream data in a packetizer; generating a transport stream output in the packetizer; and in a statmux, for consecutive NULL packets generated by the packetizer, counting a number of NULL packets between non-null packets and dropping those NULL packets, modifying a next packet to indicate the number of NULL packets dropped using a field in the next packet, and sending the next packet to a receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.