| 摘要 |
<p>A method and apparatus for embedding data in an encoded video bitstream, wherein the bitstream includes redundantly coded syntax element values of which one is an overriding value, includes mandatorily coding the syntax element overriding value and replacing the non-overriding syntax element value with the data to be embedded. Apparatus for embedding data in such bitstream includes a coder creating the coded video bitstream with such value mandatorily coded in the overriding syntax element position therein, and a data inserter for inserting the data to be embedded into the non-overriding syntax element position. An MPEG quantization scale code (QSC) value is mandatorily explicitly coded in the first coded macroblock following a slice header and the embedded data is inserted into the QSC position in the slice header.</p> |
