VIDEO DECODER MEMORY BANDWIDTH COMPRESSION

摘要

A method, system and computer program for decompressing video data, storing the compressed video data in such a way that random access is possible and the data can be mapped efficiently into existing memory systems and interface protocols. The compression is accomplished via lossless compression using an algorithm optimized for video data. Due to the compressed format, data transmission consumes less bandwidth than using uncompressed data and prevents degradation in the decoded video.

主权项

1. A method for interfacing between a main processing unit and an external memory in a video processing system, the method comprising:
dividing video data into separable video data chunks; losslessly compressing the separable video data chunks individually, wherein the compressed video data chunks comprise a percentage of uncompressed video data; storing the compressed video data chunks at a same memory location as an uncompressed video chunk would occupy; reading the stored compressed video data from memory; and decoding and displaying the video.