Systems and Methods for Protecting Elementary Bitstreams Incorporating Independently Encoded Tiles
AssigneeDivx, LLC
InventorsJason A. Braness, William David Amidei, Mayur Srinivasan
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Abstract
Systems and methods for partial frame encryption in accordance with embodiments of the invention are disclosed. In one embodiment, the method receives a video bitstream that includes several frames, each frame including several independently encoded compression units within the frame, encrypts a portion of each of several compression units in several frames, and generates an output bitstream that includes the several independently encoded compression units including the encrypted portions of the compression units.
Claims1
A non-transitory machine readable medium containing processor instructions, where execution of the instructions by a processor causes the processor to perform a process comprising:
- receiving a video bitstream comprising a plurality of frames, each frame comprising a plurality of independently encoded compression units within the frame;
- encrypting a portion of each of a plurality of compression units in a plurality of frames;
- and
- generating an output bitstream comprising the plurality of independently encoded compression units including the encrypted portions of the compression units.
Dependencies are inferred from the claim text.