| 摘要 |
A controller (100), for use in a video signal encoding system, decides an inter/intra mode, a field/frame DCT mode and a quantization parameter, wherein the video signal contains a multiplicity of GOP's each of which is classified into three types of pictures, with each of the pictures being divided into a multiplicity of macroblocks, and the encoding system encodes the video signal on a macroblock basis, and the controller (100) comprises a state machine (120) for generating a control sequence which includes a plurality of control signals in response to the type of a picture currently encoded and a signal denoting a start of the picture; an arithmetic unit (130), response to the control sequence, for generating a set of control values for each of the macroblocks in the picture, the set of control values denoting the inter/intra mode, the field/frame DCT mode and the quantization parameter, by calculating a group of predetermined equations based on the sequential number of a macroblock currently encoded and predetermined initial constant values; and a memory and input/output unit (140) for storing the initial constant values, providing the initial constant values to the arithmetic unit, storing the set of control values determined at the arithmetic unit and providing the control values to be used in encoding the video signal. <IMAGE> |
