Title :
Software control of I/O subsystem on media core processor
Author :
Hirai, Makoto ; Mochida, Tetsuji ; Hashimoto, Tsutomu ; Fujii, Eiko ; Kiyohara, Tokuzo
Author_Institution :
Multimedia Dev. Center, Matsushita Electron. Corp., Osaka, Japan
fDate :
8/1/1998 12:00:00 AM
Abstract :
To reduce the cost of a DVD player, we have integrated peripheral functions to the audio and video decoder LSI. The peripheral functions are controlled by the I/O processing tasks on single I/O control processor. I/O processing tasks are switched in constant cycle without overhead, to achieve real-time performance and flexibility of software control. In the case of video output handling, software can control each line parameter. Therefore software with line level support of hardware can perform many kinds of functions; image resizing, copy guard and dynamic blending of the image and graphics
Keywords :
computerised control; decoding; digital signal processing chips; large scale integration; optical disc storage; telecommunication computing; telecommunication control; video signal processing; DVD player; I/O control processor; I/O processing tasks; I/O subsystem; LSI; audio decoder; copy guard; dynamic blending; flexibility; graphics; image resizing; line level support; line parameter; media core processor; peripheral functions; real-time performance; software control; video decoder; video output handling; Application software; Costs; DVD; Decoding; Graphics; Hardware; Large scale integration; Process control; Software performance; Streaming media;
Journal_Title :
Consumer Electronics, IEEE Transactions on
