Patent ID: 7508874

Claim:
A motion picture expert group (MPEG) error concealment system, comprising: an MPEG transport processor; and an MPEG decoder, communicatively coupled to the MPEG transport processor; and wherein: the MPEG transport processor is operable to receive a live streaming MPEG transport stream and is also operable to identify a transport error within an MPEG transport stream layer of the live streaming MPEG transport stream; in response to a discontinuity of a programmed clock reference time base, the MPEG decoder conceals the error during live decoding by automatically disabling time-base management to allow pictures within the live streaming MPEG transport stream to be decoded and the MPEG decoder switches back to time-base management after all of the pictures being based on the previous time-base are decoded and displayed, the pictures being based on a previous time-base; in response to a mismatch between a presentation time stamp of the live streaming MPEG transport stream and a video system time clock, the MPEG video decoder categorizes a type of the error contained within the live streaming MPEG transport stream by comparing a difference between a presentation time stamp of the live streaming MPEG transport stream and a video system time clock to a predetermined threshold, each category type corresponding to an error concealment operation. the MPEG decoder is operable to perform a first error concealment operation to conceal a first error of a first category type; and the MPEG decoder is operable to perform a second error concealment operation to conceal a second error of a second category type.