FIELD: information technologies.
SUBSTANCE: video recording device comprises a compression facility, which compresses video data in process of speed control implementation, including variation of a quantisation step so that the bit transfer speed is reduced within the previously determined period to the target speed of bit transfer, a recording facility, which records compressed data onto a recording medium, and a facility for calculation of full speed, which calculates full speed of transferring bits of the result of video data compression with the help of the compression facility from the start of compression to the current moment. The compression facility comprises a facility for limitation of a quantisation step, which limits the varied quantisation step previously for a certain upper limit, which is lower than the upper limit varied in the compression facility, and a facility for fixation of the quantisation step, which fixes the quantisation step to the previously determined upper limit, when the calculated full speed of bit transfer exceeds the target speed of bit transfer.
EFFECT: compression of video data so that bit transfer speed is reduced to target bit transfer speed together with saving minimum quality of an image, and recording of compressed video data.
6 cl, 3 dwg
