Method for enabling use of HLS as a common intermediate format
US9584577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2014 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Nov 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment a method, system, and apparatus is described for providing multimedia content from a server to a plurality of media devices, the method including providing a computing device an HTTP Live Streaming (HLS) playlist for playing in an adaptive bitrate client, the playlist including a list of at least two segments, each of the segments having an associated duration field, for each segment in the playlist, assigning a timestamp which is equal to the sum the durations of each previous segment in the playlist, calculating a calculated duration of the playlist by subtracting a time stamp of the first segment in the playlist from the time stamp of the last segment in the playlist, determining a real duration of the playlist by subtracting a first presentation time stamp (PTS) of the first segment in the playlist from the last presentation time stamp (PTS) of the last segment in the playlist, computing a playlist drift by subtracting the calculated duration of the playlist from the real duration of the playlist, determining a correction factor by dividing the playlist drift by the number of segments in the playlist, and calculating a new timestamp for each segment in the pla…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.