Video coding method and device
AssigneeCanon Kabushiki Kaisha
InventorsFabrice Le Leannec, Patrice Onno, Xavier Henocq
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Abstract
The video coding method comprises: a step (605, 610) of obtaining at least two bandwidth values, a step (620) of coding a base layer so that the rate of the coded base layer data is less than or equal to the lowest bandwidth, and for at least one bandwidth greater than the lowest bandwidth, at least one step (630, 635) of coding an enhancement layer so that the sum of the rate of the data of said coded enhancement layer and the rate of the data serving as a reference of a reference layer of said enhancement layer is less than said bandwidth. In embodiments, during the step of obtaining at least two bandwidth values, bandwidth values received by at least two coded video data destinations are obtained.
Claims20
Video coding method, that comprises:
- a step of obtaining at least two bandwidth values,
- a step of coding a base layer so that the rate of the coded base layer data is less than or equal to the lowest bandwidth, and
- for at least one bandwidth greater than the lowest bandwidth, at least one step of coding an enhancement layer so that the sum of the rate of the data of said coded enhancement layer and the rate of the data serving as a reference of a reference layer of said enhancement layer is less than said bandwidth.
Video coding device, that comprises:
- a means for obtaining at least two bandwidth values,
- a means for coding a base layer so that the rate of the coded base layer data is less than or equal to the lowest bandwidth, and
- a coding means adapted, for at least one bandwidth greater than the lowest bandwidth, to code an enhancement layer so that the sum of the rate of the data of said coded enhancement layer and the rate of the data serving as a reference of a reference layer of said enhancement layer is less than said bandwidth.
Dependencies are inferred from the claim text.