Moving image reproducing apparatus
View Patent ↗A moving image reproducing apparatus includes a CPU mounted with a real-time OS. When a set key is pressed, the CPU executes concurrently a transfer process of compressed image data and sound data from a magneto-optical disk to an SDRAM and a reproduce process of compressed image data and sound data stored in the SDRAM. Herein, the reproduce process includes a process of setting a command of transferring the compressed image data and sound data to an instruction list and a process of outputting the compressed image data and sound data stored in the SDRAM. Meanwhile, the transfer process includes a process of seeking a desired address on the magneto-optical disk by making reference to the instruction list and a process of writing desired data to a desired address in the SDRAM by making reference to the instruct on list.
1. A moving image reproducing apparatus which produces moving image content from a recording medium, comprising:
an internal memory for temporarily storing the moving image content; and
a processor for carrying out in parallel a plurality of tasks under a control of a multi-task OS, wherein the plurality of tasks carried out by said processor includes a transfer task to transfer a partial amount per time of the moving image content from said recording medium to said internal memory and a reproduce task to reproduce the moving image content stored in said internal memory, wherein
said reproduce task includes a set process to set a plurality of operation commands to a table and an output process to read out and output the moving image content stored in said internal memory, and said transfer task includes a seek process to seek a desired address on said recording medium in reference to the table and a content transfer process to transfer the moving image content corresponding to the partial amount from said recording medium to said internal memory in reference to the table.
2. A moving image reproducing apparatus according to claim 1 , wherein said reproduce task further includes a comparison process to compare the number of unexecuted operation commands already set in the table but not yet executed with a threshold value and a wait process to wait for a predetermined time when the number of the unexecuted operation commands is greater than the threshold value.
3. A moving image reproducing apparatus according to claim 2 , wherein the threshold value relies on a frame rate of the moving image content.
4. A moving image reproducing apparatus according to claim 1 , wherein the set process includes an update process to cyclically update a transfer destination address of the moving image content and an address set process to set the transfer destination address updated by the update process to the table.
5. A moving image reproducing apparatus according to claim 1 , wherein the moving image content includes a plurality of compressed still images, and the output process includes a decompress process to decompress each of the plurality of compressed still images.