Video data decoding method and device
A video decoder and entropy decoding technology, applied in the field of video codec, can solve the problems of increasing bit overhead, reducing codec performance, etc., and achieve the effect of stabilizing the code rate, improving codec performance, and reducing the decline
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[0149] The following explanations of several terms involved in the embodiments of this application are as follows:
[0150] Quantization adjustment factor: a quantization process used to adjust image block-level transform coefficients, or an inverse quantization process used to adjust image block-level quantized transform coefficients. In the following embodiments of the present application, examples of quantization adjustment factors include The first quantization adjustment factor, the second quantization adjustment factor, the third quantization adjustment factor, and the fourth quantization adjustment factor. It should be understood that the first quantization adjustment factor and the second quantization adjustment factor are used for the inverse quantization process of adjusting the quantized transform coefficients at the image block level in the video decoding process, wherein the first quantization adjustment factor is adaptively calculated The initial quantization adjust...
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