To modify this, we regulate adaptively the quantization parameter of each I-frame according to GOP complexion to avoid the buffer overflow and frame-skipping.
为了改进此缺点,基于GOP的整体情况自适应调整I帧的量化参数,从而避免缓冲区溢位与跳帧的问题。
参考来源 - 低延时H.264码率控制算法研究First, the initial quantization parameter of the transcoding is achieved by a new R-D model in transcoding.
首先,利用一种复杂度率失真模型对码流进行分析,根据目标码率计算初始量化系数。
参考来源 - 基于率失真函数的保证质量的编码方法·2,447,543篇论文数据，部分数据来源于NoteExpress
Generally, the rate distortion model is employed to compute quantization parameter for the controlling bit rate.
通常码率控制算法使用一定的率失真模型来决策量化参数从而控制码率。
The QP (Quantization Parameter) of each macroblock is calculated in macroblock-layer, the target bits of each frame is allocated in frame-layer.
帧层次主要计算为这一帧分配的目标字节数，宏块层次主要计算每一个宏块的量化参数。
To modify this, we regulate adaptively the quantization parameter of each I-frame according to GOP complexion to avoid the buffer overflow and frame-skipping.
为了改进此缺点，基于GOP的整体情况自适应调整I帧的量化参数，从而避免缓冲区溢位与跳帧的问题。
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