| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a video demultiplexer and a decoder using efficient data recovery. <P>SOLUTION: A demultiplexer detects a boundary between a plurality of physical layer data units and adds boundary information to a bit stream. The demultiplexer generates adaptation layer data units to generate an application layer bit stream. When the video decoder encounters an error in the bit stream, it uses the boundary information to limit the amount of data that should be concealed. In particular, the boundary information permits the error to be associated with a small segment of data. A video decoder conceals data from the beginning of the segment of data rather than an entire slice or frame in which the segment resides. In this manner, the video decoder provides efficient data recover, thereby limiting the loss of useful data that otherwise may be purposely discarded for concealment purpose. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
