Dynamic decoder switch
US8155205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2007 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Jan 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/85
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method provides for dynamic changes in a software video player. The method includes learning of a dynamic change from an input pin of a decoder filter, recording states of the decoder filter and a renderer filter, stopping the decoder and the renderer filters without changing a state of a source filter, and setting parameters for an output pin of the decoder filter. The parameters include setting a decoding mode. If the decoder filter output pin and a renderer filter input pin remain connected, a ReconnectEX function is used to set a new media type at the decoder filter output pin. Otherwise the method calls a Connect function to connect the pins and set the new media type. The method further includes changing to a decoder core in the decoder filter appropriate for the dynamic change and restoring the decoder and the renderer filters back to their original states.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.