| 摘要 |
According to the embodiment, there is provided a coded stream generation method for generating a coded stream including a plurality of first units and a plurality of second units that are arranged in a time series. The method includes; separating the coded stream into a plurality of information units and defining a third unit containing the first units and the second units for each of the information units; assigning a first priority to the initial first unit and to the first units to be decoded as standard data in performing a fast-forward playback mode; assigning a second priority that is lower than the first priority to the first units to be decoded as reference data in performing the fast-forward playback mode; and assigning a third priority that is lower than the second priority is to the first units to be undecoded in performing the fast-forward playback mode.
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