| 摘要 |
The invention relates to an encoding method applied to a video sequence corresponding to successive scenes and generating a coded bitstream in which each data item is described by means of a bitstream syntax allowing, at the decoding side, to recognize and decode all the elements of the content of this coded bitstream. According to the invention, said syntax comprises specific information indicating at a high description level in said bitstream the presence, or not, of various additional channels that can be encountered to describe the content of said bitstream. Several examples of specific information are given.
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