| 摘要 |
A time management section (102) and a bitstream switching control section (103) are provided in a decoder control device (100), and at the end of a predetermined unit of decoding process, a decoder (110) notifies the switching control section (103) of the completion of the decoding process. The time management section (102) sets the limit time that is allowed for decoding each bitstream within the prescribed time based on the decoder capacity, the information on the number of bitstreams to be decoded, the image size information and the frame rate extracted from the bitstream. If the limit time is reached, the switching control section (103) is instructed to switch bitstreams from one to another. The switching control section (103) switches bitstreams from one to another, by receiving the switching instruction from the time management section (102) and the completion notification from the decoder (110) notifying the completion of the predetermined unit of decoding process.
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