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在开始捕获之前,如何获取视频使用的通道数?我以为我可以使用cvGetCaptureProperty,但没有可以设置的 property_id 来获取频道数。
cvGetCaptureProperty
是的,你是对的 - 没有property_id频道数量。您只能从单帧捕获中获取通道数。
property_id