Patent ID: 8923391
Filing Date: 2014-12-30
Classification: H04N

Abstract:
1. A control method for an encoding apparatus which performs rate control, the method comprising: a first acquiring step of acquiring an evaluation value based on a rate of actually encoded first data; and a first setting step of setting a first quantization parameter to be used for quantizing second data subsequent to the first data, wherein, in the first setting step, a rate of a variation of the first quantization parameter to the evaluation value is smaller in a case where change based on whether the evaluation value is within a predetermined range, and wherein, in the first setting step, the first quantization parameter is set based on a number of frames from a frame corresponding to the second data to a last intra frame before the frame corresponding to the second data by use of the predetermined range in which an upper limit value of the predetermined range is larger in a case where the number of frames is smaller than a first value than in a case where the number of frames is larger than the first value.