ABR (available Bit Rate) service will systematically and dynamically allocate available bandwidth to users by controlling the flow of traffic with feedback.
A BR业务将通过反馈来控制业务流量，从而系统地、动态地给用户分配带宽。
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。
In addition, the new method improves the robustness of video bit stream against channel errors and makes the rate controlling operation of video encoders more accurate.
此外，新算法还提高了输出码流的抗误码性能和编码器流控的精确程度。
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