Patent ID: 8811482

Claim:
A method for establishing a coded output video stream from at least two coded input video streams, for joint representation of a first picture of each of the coded input video streams in a second picture of the coded output video stream, the coded output video stream and the coded input video streams having an identical color format, an identical bit resolution per coded pixel and an identical picture scanning, and are coded using an identical video coding method that has at least one coding mode in which second coded picture data describing the second picture of the coded output video stream can be divided into separable coded sub-picture data, comprising: receiving the coded input video streams, each including first coded picture data and first signaling data containing first signaling parameters providing first administrative information of the coded input video streams, the first coded picture data in each case having picture information coded for the first picture; producing the coded output video stream, including the second coded picture data, second control data and second signaling data containing second signaling parameters providing second administrative information of the coded output video stream, the second coded picture data being produced by copying one portion of the first coded picture data of first pictures to be shown simultaneously into one of the coded sub-picture data of the second picture, and the second signaling data being generated at least partly based on the first signaling data; analyzing corresponding first signaling parameters of appropriate coded input video streams for whether an identical parameter value is present; and assigning the identical parameter value to the second signaling parameter corresponding to analyzed first signaling parameters, when the corresponding first signaling parameters have the identical parameter value, thereby reducing an output data volume of the coded output video stream compared with a total data volume of the coded input video streams.