Patent ID: 8687944
Filing Date: 2014-04-01
Classification: G11B,H04N

Abstract:
1. A method of indexing video data within a video stream comprising: receiving the video stream, the video stream comprising network abstraction layer (NAL) units, the NAL units including a non-scrambled access unit delimiter; filtering the non-scrambled access unit delimiter from the NAL units of the video stream; generating positional information of a start of a frame of the video stream based on the non-scrambled access unit delimiter; storing the positional information into a database, wherein the non-scrambled access unit delimiter is located in a payload portion of a packet of the video stream; and indexing, using the database, frames of the video stream, wherein a scrambling control flag located in a transport stream layer packet of the video stream is used to control scrambling of the payload portion of the packet, wherein the scrambling control flag is set to a value that inhibits or initiates scrambling of the payload portion based on contents in the payload portion.