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8127的scaler link图像缩放比例问题



请问vpss的scaler link对于缩放比例有没有要求,是否必须整数倍的放大或者缩小?

我现在测试有个现象,输入的是1080P图像,当缩放输出720P或者720x480或者352x288这样分辨率的时候,输出图像会有些小问题,图像总体上是正常的,不过有一些斜向的条出现

如果是缩放成960x540这样的长宽都减小一半的比例,则图像正常

图像见附件,谢谢大家