Efficient video frame rendering in compliance with cross-origin resource restrictions
US9666233B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2015 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Aug 12, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/179
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A browser efficiently extracts media from a video presented through a web application having a different domain from a media server providing the web application while complying with cross-origin resource restrictions. A video portion is selected, and a header portion of the video is identified. A truncated video portion, which includes the selected video portion and a video portion contiguous to the selected video portion, is loaded into memory. A truncated video file is generated including the truncated video portion and a truncated video header. The truncated video file is encoded as a video tag included in the web application, and the media corresponding to the selected video portion is extracted by transcoding the truncated video file in the video tag. A server may also extract the media by loading the truncated video portion, generating the truncated video file, and transcoding the truncated video file to obtain the media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.