Patent ID: 8291104
Filing Date: 2012-10-16
Classification: G11B,H04N,Y10S

Abstract:
1. A method of extracting a data stream from a modified file format implemented on a device, the method comprising: a. receiving a request for a specific data stream, wherein the request includes one or more device requirements; b. associating the request with a specific scalable data stream stored in a media data section of the modified file format; c. determining one or more tracks corresponding to the specific scalable data stream, wherein the one or more tracks are stored in a metadata section of the modified file format, further wherein each track comprises one or more metadata boxes; d. determining a sub-layer data stream of the specific scalable data stream according to the one or more device requirements, wherein the sub-layer data stream is determined using the one or more metadata boxes; and e. extracting the sub-layer data stream from the stored scalable data stream.