Patent ID: 8290057

Claim:
A method performed by a video player for rendering an MPEG sequence, the method comprising: decoding a first picture in the MPEG sequence; reducing, by a compressor of the video player, a data size of the decoded first picture by vector quantizing at least one component of the first picture, the quantized component selected from the luminance and chrominance components of the first picture; storing a reduced data size representation of the decoded first picture to a frame buffer memory of the video player; reading from the frame buffer memory a prediction block of the reduced data size representation of the decoded first picture; inverse quantizing, by a decompressor of the video player, the selected component of the prediction block of the reduced data size representation of the decoded first picture to restore the prediction block of the decoded first picture; decoding a block of a second picture in the MPEG sequence according to the restored prediction block of the decoded first picture; reducing, by the compressor of the video player, a data size of the decoded second picture by vector quantizing the selected component of the second picture; storing a reduced data size representation of the decoded second picture to the frame buffer memory of the video player; reading from the frame buffer memory the reduced data size representation of the decoded second picture; inverse quantizing, by another decompressor of the video player, the selected component of the reduced data size representation of the decoded second picture to restore the decoded second picture; and displaying the restored second picture.