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DM8168的采集帧频只为正常值的一半

Other Parts Discussed in Thread: TVP5158

您好,请教一下

输入给DM8168两路视频数据1080p和640x480逐行,都是25帧。

因为640x480用tvp5158解码只能隔行扫描,所以需要对640x480进行去交错处理。用dei[0]对1080P进行处理,没有进行去交错处理,dei[1]对640x480进行去交错处理。640x480视频编码数据输出正常,可是1080P视频编码数据输出帧频只有13帧,什么原因导致的?