First, decide whether to write the filter from scratch or copy and modify a filter that already exists and is similar to what you want to accomplish.

首先，确定是从头开始编写过滤器，还是复制并修改已存在的类似过滤器。

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The basic design is to start with the video4linux source, filter it into RGB, and then send one copy to the screen and one to an image sink that can occasionally save JPEGs.

基本设计思想是，从video4linu x源开始，将其过滤为rgb，然后将它的一个副本发送到屏幕，另一个发送到可以临时保存JPEG文件的图像接收器。

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Views section: In this section you can create a new view, set filter to the tables, or export or copy the views.

Views部分：在这个部分可以创建新的视图、设置表过滤器或导出或复制视图。

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