| 摘要 |
A video stream coded in a hierarchical manner at least in the form of a base stream and of at least one enhancement stream heightened along one dimension is transmitted via a packet transmission network according to a determined transmission protocol. At the level of a transmission entity is received (21), from an encoder, a first series ordered according to a first order of coded packets relating both to the base stream and to the enhancement stream. Next, a second series of packets is obtained (22), coded according to a second order by grouping said coded packets into groups of N packets, by traversing in the first order the coded packets of the first series, said N packets of one and the same group either all relating to the base stream or all relating to the enhancement stream, N being an integer determined as a function of the transmission network and of the size of the coded packets. Thereafter, packets to be transmitted according to the determined transmission protocol are composed (23), said packets comprising respectively as payload the groups of N successive packets of the second series of coded packets. |
