VIDEO CODING DEVICE, METHOD, AND APPARATUS AND INTER-FRAME MODE SELECTION METHOD AND APPARATUS THEREFOR

摘要

A video coding device, method, and apparatus and an inter-frame mode selection method and apparatus are described. An initial value of a current depth Depth is 1, and the inter- frame mode selection method includes: S701: if calculation of a coding overhead of coding a coding unit CU_Depth is to be skipped, invoking S703 to S705; and if the calculation is not to be skipped, invoking S702 to S705; S702: determining a current optimum coding mode and coding overhead of the coding unit CU_Depth; S703: dividing the coding unit CU_Depth into multiple coding subunits having a depth Depth +1, and recursively performing S701 to S705 until the depth of the coding subunit reaches a preset maximum depth or satisfies a division stopping condition, to determine an optimum coding mode and a coding overhead of each coding subunit; S704: comparing a sum of coding overheads of the multiple coding subunits with the current coding overhead of the coding unit CU_Depth; and S705: determining that a mode corresponding to the smaller one in S704 is an optimum coding mode.