DATA RECORDING DEVICE, DATA RECORDING METHOD, DATA PROCESSING DEVICE, DATA PROCESSING METHOD, SOFTWARE, SOFTWARE MEDIA, DATA MEDIA AND STRUCTURE Russian patent published in 2008 - IPC H04N5/92 G11B20/12 H04N7/32 

FIELD: information technology.

SUBSTANCE: playback with variable speed is performed without picture quality deterioration. Controller 425 creates EP_map () with RAPI address in videoclip information file, dedicated information selection module 423 RAPI, image PTS with internal encoding, which is immediately preceded by RAPI, one of final positions of the picture with internal encoding, as well as the second, the third and the fourth reference pictures, which are preceded by the picture with internal encoding. The controller saves EP_map () in output server 426, i.e. controller 425 copies the value, close to given number of sectors (quantity of sectors, which can be read at one time during encoding process) of final positions for the four reference pictures (1stRef_picture, 2ndRef_picture, 3rdRef_picture and 4thRef_picture) to N-th_Ref_picture_copy, defines value of index_minus 1 on the basis of N-th_Ref_picture_copy and records it to disc.

EFFECT: effective process performance with constant data reading time.

8 cl, 68 dwg