| 摘要 |
At the end of encoding of a normal GOP appearing in a predetermined interval, it is checked whether a random access point is designed in the next normal GOP. If it is determined that a random access point is designed in the next GOP, current GOP extension processing is performed to increase the number of frames constituting the current GOP. This current GOP extension processing includes the processing of changing the picture type of the frame to be encoded next in the encoding order from I to P (or B). With this processing, the GOP immediately preceding the random access point can be extended, and encoding can be performed while the random access point is made to coincide with the beginning of a new GOP interval.
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