| 摘要 |
A video codec is composed of: a video encode/decode operation unit which decodes a bitstream into a video signal; an IO buffer into which the bitstream transferred from an encoded-video recorder is stored; and a DMAC which controls a process of determining, in accordance with free space of the IO buffer and an OP buffer, either a first path going through a main memory or a second path bypassing the main memory 11 as the transfer path, and having the bitstream, that is stored in the IO buffer, inputted into the video encode/decode operation unit via the determined transfer path.
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