| 摘要 |
PROBLEM TO BE SOLVED: To provide an MPEG code feeder suited to the use of simultaneously reproducing a plurality of moving picture streams, using an MPEG video decoder in time sharing. SOLUTION: An MPEG code feeder 1 logically constitutes the same number of FIFO buffers as the number of channels of a picture stream in a buffer memory 5, inputs and writes code data 170-172, in addresses indicated by write address pointers 31-33 of corresponding channels, and outputs code data 139 read from an address indicated by a read address pointer 34 to an MPEG video decoder in the latter stage. In reading, it reads the number of addresses, corresponding to the number of bytes of a code FIFO in the MPEG video decoder as that for one page, and hence in switching of a reproducing channel, it begins to read from an address past by the number of addresses for one page from the last read address indication value in the previous switching, thereby reliably re-feeding the deleted code data to the code FIFO. |
