Multi-function encoder and decoder devices, and methods thereof

摘要

A technique for encoding and decoding video information uses a plurality of video processing modules (VPMs), whereby each video processing module is dedicated to a particular video processing function, such as filtering, matrix arithmetic operations, and the like. Information is transferred between the video processing modules using a set of first-in first-out (FIFO) buffers. For example, to transfer pixel information from a first VPM to a second VPM, the first VPM stores the pixel information at the head of a FIFO buffer, while the second VPM retrieves information from the tail of the FIFO buffer. The FIFO buffer thus permits transfer of information between the VPMs without storage of the information to a cache or other techniques that can reduce video processing speed.

主权项

1. In a multimedia processing device, a method comprising:
at a first time, processing first video information at a first video processing module of an instruction pipeline to determine first processed video information; storing the first processed video information at a first first-in first-out (FIFO) buffer, selected from a plurality of FIFOs, in response to identifying that the first video information is associated with a first codec; retrieving the first processed video information from the first FIFO buffer for processing at a second video processing module of the instruction pipeline in response to identifying that the first video information is encoded according to the first codec; at a second time, processing second video information at the first video processing module to determine second processed video information; and storing the second processed video information at a second FIFO buffer selected from the plurality of FIFOs, in response to identifying that the second video information is associated with a second codec, the first codec different from the second codec and the second FIFO buffer different from the first FIFO buffer.