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vpss cameralink 是怎么获取不同分辨率的码流的,源码没有看明白



cameralink 的next有2个,一个是800w的分辨的码流,用来抓拍图片,一个是1080p的码流,用来转换成h264码流,但是我在cameralink里面找不到在哪个地方可以得到2个码流,从ISS驱动里面应该只有一个800w的原始分辨率的码流吧!

multich_dualstream_demo.c 里面也是设置cameralink 出2路码流,但是是怎么得到的呢?