| 摘要 |
<p>PROBLEM TO BE SOLVED: To achieve highly accurate bit rate control by reducing the risk of the overflow of an intermediate buffer between a quantization part and a coding part.SOLUTION: An intermediate buffer 200 of a moving image coding device 1 is connected between the output of a quantization part 103 and the input of a coding part 201, and the determination signal of the magnitude of the data storage amount of the intermediate buffer 200 is supplied to the selection control terminal of a code amount selector 301. When the data storage amount of the buffer 200 is large, the estimated code amount of a code amount estimation part 300 to be supplied to a first input terminal of the selector 301 is output to the output terminal of the code amount selector 301, and the quantization scale of the quantization part 103 is adjusted. When the data storage amount of the intermediate buffer 200 is small, an actual code amount from the coding part 201 to be supplied to a second input terminal of the code amount selector 301 is output to the output terminal of the selector 301, and the quantization scale of the quantization part 103 is adjusted.</p> |
