H.264 to VC-1 and VC-1 to H.264 transcoding
US7912127B2 · kind B2 · utility
7Cited by
4References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 5, 2005 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Jan 20, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for transcoding from an H.264 format to a VC-1 format. The method generally comprises the steps of (A) decoding an input video stream in the H.264 format to generate a picture having a plurality of macroblock pairs that used an H.264 macroblock adaptive field/frame coding; (B) determining a mode indicator for each of the macroblock pairs; and (C) coding the macroblock pairs into an output video stream in the VC-1 format using one of (i) a VC-1 field motion compensation mode coding and (ii) a VC-1 frame motion compensation mode coding as determined from the mode indicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.