因为没有校正同步，所以低质量视频中的横向和纵向抖动经过过滤器后仍然存在。
No sync correction is performed, so a low-quality input with horizontal or vertical jitter will still appear jittery after this filter.
因为没有校正同步，所以低质量视频中的横向和纵向抖动经过过滤器后仍然存在。
No sync correction is performed, so a low-quality input with horizontal or vertical jitter will still appear jittery after this filter.
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