System, method, and apparatus for embedding personal video recording functions at picture level

摘要

Described herein are system(s), method(s), and apparatus for embedding personal video recorder functions at the picture level. In one embodiment, there is presented a computer readable medium for storing a data structure. The data structure comprises a picture header and at least one command following the picture header.

主权项

1. A method for displaying encrypted video data, comprising:
decrypting, by a decryption engine, a first encrypted data structure comprising a first plurality of pictures to obtain the first data structure; and decrypting, by the decryption engine, a second encrypted data structure comprising a second plurality of pictures while decoding, by a video decoder, at least some pictures of the first plurality of pictures from the first data structure decrypted by the decryption engine, wherein decrypting the second encrypted data structure further comprises: fetching a portion of the encrypted video data, the portion of the encrypted video data starting from a first address that is offset from a second address by a predetermined offset, wherein the first encrypted data structure is stored starting from the second address; decrypting the portion of the encrypted video data and fetching another portion of the encrypted video data, the another portion of the encrypted video data starting from a third address that is offset from the first address by the predetermined offset.