Patent ID: 8270470

Claim:
A method for transcoding an encoded digital video input signal having a base signal and at least one differential extension signal, comprising: determining a first piece of page data and a first piece of transform coefficient data from the base signal; determining at least one second piece of page data and at least one second piece of transform coefficient data respectively from at least one differential extension signal; generating a third piece of page data from the first piece of page data and from the at least one second piece of page data; generating a third piece of transform coefficient data from the first piece of transform coefficient data and from at least one second piece of transform coefficient data, the first, second and third pieces of transform coefficient data being based on an identical transform coefficient encoding method; and creating an encoded digital video output signal from the third piece of page data and the third piece of transform coefficient data, wherein a first part of syntax elements of the third piece of page data is taken from syntax elements of the second piece of page data, and a second part of syntax elements of the third piece of page data is generated from a combination of syntax elements of the first and the second pieces of page data.