现在，输入视频固定在稳定的直流电平，消隐电平则设定为已知的ADC代码。

The input video is now fixed at a stable DC level where the blank level is set to a known ADC code.

youdao

现在，输入视频固定在稳定的直流电平，消隐电平则设定为已知的ADC代码。

The input video is now fixed at a stable DC level where the blank level is set to a known ADC code.

youdao