Patent ID: 8014651
Filing Date: 2011-09-06
Classification: H04N

Abstract:
1. An MPEG-2 video decoding method for providing enhanced trick mode playback of a video stream, comprising: providing a first buffer and a second buffer within an MPEG-2 decoder, wherein the first buffer has a first pointer that is associated with a first address, and wherein the second buffer has a second pointer that is associated with a second address; locking the first pointer and the second pointer in place by disengaging a frame synchronization signal within the MPEG-2 decoder; and decoding, in a single traversal through a set of frames, the set of frames of the video stream for trick mode playback to the first buffer and the second buffer in a strictly alternating fashion by continuously swapping the first address and the second address on a frame by frame basis such that every frame in the first buffer is immediately followed by a frame in the second buffer and every frame in the second buffer is immediately followed by a frame in the first buffer until an end of the video stream.