MPEG-2 decoder, method and buffer scheme for providing enhanced trick mode playback of a video stream

An MPEG-2 decoder for providing enhanced trick mode playback of a video stream, comprising:

• at least one computer device, having:
• a first buffer and a second buffer, 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;
• and
• microcode for locking first pointer and the second pointer in place by disengaging a frame synchronization signal within the MPEG-2 decoder, and for continuously swapping the first address and the second address on a frame by frame basis so that a set of frames of the video stream comprising at least one I frame and at least zero P frames can be decoded, in a single traversal through a set of frames, without use of B frames for trick mode playback to the first buffer and the second buffer in a strictly alternating fashion 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.