Patent ID: 7281186
Filing Date: 2007-10-09
Classification: H04N

Abstract:
1. A computer program product for use in a video processing device configured to receive an incoming video stream, the video processing device having a plurality of transport processor units, each transport processor unit having a transport interface, a demultiplexing processor, memory, and a demultiplexing direct memory access (DMA) unit, each transport processor unit being configured to process data packets from the incoming video stream, wherein the computer program product comprises one or more computer-readable storage media having computer-executable instructions for implementing a method for handling error information, and wherein the method comprises: accumulating exception information generated in the transport interface of one or more of the plurality of transport processor units as data packets are acquired from the video stream; accumulating exception information generated in the demultiplexing processor of the one or more transport processor units as the acquired data packets are processed; accumulating exception information generated in the demultiplexing DMA unit of the one or more transport processor units as the acquired data packets undergo memory handling; creating one or more exception packets within the one or more transport processor units by arranging the exception information into one or more control fields of the one or more exception packets; and transferring the one or more exception packets created within the one or more transport processor units to system memory accessible by video processing software being executed by a system processor, rather than storing the one or more exception packets within the memory of the one or more transport processor units, for subsequent access by the video processing software being executed by the system processor.