| 摘要 |
PURPOSE:To provide a moving image encoder for preventing the difference of picture quality from being conspicuous between an area to perform refresh and the other area in the case of code amount control at the time of refresh. CONSTITUTION:This device is provided with encoding circuits 104-106 and 109-116 equipped with a mode to perform in-frame encoding to an input moving image signal and a mode to perform inter-frame encoding, mode selecting circuit 117 for setting the refresh area to forcedly perform the in-frame encoding inside the frame of the input moving image signal and for selecting the encoding mode of the encoding circuit so as to move the refresh area for each frame, and code amount control circuit 107 for controlling the generating code amount of the encoding circuit. Based on the generated code amount in the refresh area of the preceding frame at least and the generated code amount in the other area excepting for the refresh area, the code amount control circuit 107 decides the generated code amount to be allocated to the refresh area and a control target code amount to be allocated to the other area excepting for the refresh area. |
