The trance cord/code for the trick play which is improved the picture which is done

摘要

This invention offers method and the device which make the processing of the picture which is included in the coded image stream easy. Regarding one execution form of this invention, the plural non intora coded images are done the intora coded image (I picture) the trance cord/code. I picture which the trance cord/code is done is used, in that case, in order to make trick mode playback such as opposite direction playback, high-speed opposite direction playback or high-speed forward direction playback easy. Furthermore, the picture sequence window is stipulated, I picture which the trance cord/code which is outside that picture sequence window makes is deleted from memory.